mirror of
https://github.com/git/git.git
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e1fae93019
"uchar [40]" to "struct object_id" conversion continues. * bc/object-id: wt-status: convert to struct object_id builtin/merge-base: convert to struct object_id Convert object iteration callbacks to struct object_id sha1_file: introduce an nth_packed_object_oid function refs: simplify parsing of reflog entries refs: convert each_reflog_ent_fn to struct object_id reflog-walk: convert struct reflog_info to struct object_id builtin/replace: convert to struct object_id Convert remaining callers of resolve_refdup to object_id builtin/merge: convert to struct object_id builtin/clone: convert to struct object_id builtin/branch: convert to struct object_id builtin/grep: convert to struct object_id builtin/fmt-merge-message: convert to struct object_id builtin/fast-export: convert to struct object_id builtin/describe: convert to struct object_id builtin/diff-tree: convert to struct object_id builtin/commit: convert to struct object_id hex: introduce parse_oid_hex
3331 lines
92 KiB
C
3331 lines
92 KiB
C
#include "cache.h"
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#include "tag.h"
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#include "blob.h"
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#include "tree.h"
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#include "commit.h"
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#include "diff.h"
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#include "refs.h"
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#include "revision.h"
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#include "graph.h"
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#include "grep.h"
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#include "reflog-walk.h"
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#include "patch-ids.h"
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#include "decorate.h"
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#include "log-tree.h"
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#include "string-list.h"
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#include "line-log.h"
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#include "mailmap.h"
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#include "commit-slab.h"
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#include "dir.h"
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#include "cache-tree.h"
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#include "bisect.h"
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volatile show_early_output_fn_t show_early_output;
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static const char *term_bad;
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static const char *term_good;
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void show_object_with_name(FILE *out, struct object *obj, const char *name)
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{
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const char *p;
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fprintf(out, "%s ", oid_to_hex(&obj->oid));
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for (p = name; *p && *p != '\n'; p++)
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fputc(*p, out);
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fputc('\n', out);
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}
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static void mark_blob_uninteresting(struct blob *blob)
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{
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if (!blob)
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return;
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if (blob->object.flags & UNINTERESTING)
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return;
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blob->object.flags |= UNINTERESTING;
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}
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static void mark_tree_contents_uninteresting(struct tree *tree)
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{
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struct tree_desc desc;
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struct name_entry entry;
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struct object *obj = &tree->object;
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if (!has_object_file(&obj->oid))
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return;
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if (parse_tree(tree) < 0)
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die("bad tree %s", oid_to_hex(&obj->oid));
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init_tree_desc(&desc, tree->buffer, tree->size);
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while (tree_entry(&desc, &entry)) {
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switch (object_type(entry.mode)) {
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case OBJ_TREE:
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mark_tree_uninteresting(lookup_tree(entry.oid->hash));
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break;
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case OBJ_BLOB:
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mark_blob_uninteresting(lookup_blob(entry.oid->hash));
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break;
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default:
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/* Subproject commit - not in this repository */
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break;
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}
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}
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/*
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* We don't care about the tree any more
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* after it has been marked uninteresting.
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*/
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free_tree_buffer(tree);
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}
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void mark_tree_uninteresting(struct tree *tree)
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{
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struct object *obj;
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if (!tree)
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return;
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obj = &tree->object;
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if (obj->flags & UNINTERESTING)
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return;
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obj->flags |= UNINTERESTING;
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mark_tree_contents_uninteresting(tree);
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}
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void mark_parents_uninteresting(struct commit *commit)
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{
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struct commit_list *parents = NULL, *l;
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for (l = commit->parents; l; l = l->next)
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commit_list_insert(l->item, &parents);
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while (parents) {
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struct commit *commit = pop_commit(&parents);
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while (commit) {
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/*
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* A missing commit is ok iff its parent is marked
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* uninteresting.
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*
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* We just mark such a thing parsed, so that when
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* it is popped next time around, we won't be trying
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* to parse it and get an error.
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*/
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if (!has_object_file(&commit->object.oid))
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commit->object.parsed = 1;
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if (commit->object.flags & UNINTERESTING)
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break;
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commit->object.flags |= UNINTERESTING;
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/*
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* Normally we haven't parsed the parent
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* yet, so we won't have a parent of a parent
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* here. However, it may turn out that we've
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* reached this commit some other way (where it
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* wasn't uninteresting), in which case we need
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* to mark its parents recursively too..
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*/
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if (!commit->parents)
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break;
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for (l = commit->parents->next; l; l = l->next)
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commit_list_insert(l->item, &parents);
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commit = commit->parents->item;
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}
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}
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}
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static void add_pending_object_with_path(struct rev_info *revs,
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struct object *obj,
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const char *name, unsigned mode,
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const char *path)
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{
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if (!obj)
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return;
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if (revs->no_walk && (obj->flags & UNINTERESTING))
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revs->no_walk = 0;
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if (revs->reflog_info && obj->type == OBJ_COMMIT) {
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struct strbuf buf = STRBUF_INIT;
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int len = interpret_branch_name(name, 0, &buf, 0);
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int st;
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if (0 < len && name[len] && buf.len)
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strbuf_addstr(&buf, name + len);
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st = add_reflog_for_walk(revs->reflog_info,
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(struct commit *)obj,
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buf.buf[0] ? buf.buf: name);
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strbuf_release(&buf);
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if (st)
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return;
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}
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add_object_array_with_path(obj, name, &revs->pending, mode, path);
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}
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static void add_pending_object_with_mode(struct rev_info *revs,
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struct object *obj,
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const char *name, unsigned mode)
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{
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add_pending_object_with_path(revs, obj, name, mode, NULL);
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}
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void add_pending_object(struct rev_info *revs,
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struct object *obj, const char *name)
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{
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add_pending_object_with_mode(revs, obj, name, S_IFINVALID);
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}
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void add_head_to_pending(struct rev_info *revs)
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{
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unsigned char sha1[20];
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struct object *obj;
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if (get_sha1("HEAD", sha1))
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return;
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obj = parse_object(sha1);
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if (!obj)
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return;
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add_pending_object(revs, obj, "HEAD");
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}
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static struct object *get_reference(struct rev_info *revs, const char *name,
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const unsigned char *sha1,
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unsigned int flags)
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{
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struct object *object;
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object = parse_object(sha1);
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if (!object) {
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if (revs->ignore_missing)
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return object;
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die("bad object %s", name);
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}
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object->flags |= flags;
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return object;
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}
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void add_pending_sha1(struct rev_info *revs, const char *name,
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const unsigned char *sha1, unsigned int flags)
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{
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struct object *object = get_reference(revs, name, sha1, flags);
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add_pending_object(revs, object, name);
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}
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static struct commit *handle_commit(struct rev_info *revs,
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struct object_array_entry *entry)
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{
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struct object *object = entry->item;
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const char *name = entry->name;
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const char *path = entry->path;
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unsigned int mode = entry->mode;
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unsigned long flags = object->flags;
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/*
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* Tag object? Look what it points to..
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*/
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while (object->type == OBJ_TAG) {
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struct tag *tag = (struct tag *) object;
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if (revs->tag_objects && !(flags & UNINTERESTING))
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add_pending_object(revs, object, tag->tag);
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if (!tag->tagged)
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die("bad tag");
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object = parse_object(tag->tagged->oid.hash);
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if (!object) {
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if (flags & UNINTERESTING)
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return NULL;
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die("bad object %s", oid_to_hex(&tag->tagged->oid));
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}
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object->flags |= flags;
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/*
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* We'll handle the tagged object by looping or dropping
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* through to the non-tag handlers below. Do not
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* propagate path data from the tag's pending entry.
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*/
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path = NULL;
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mode = 0;
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}
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/*
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* Commit object? Just return it, we'll do all the complex
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* reachability crud.
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*/
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if (object->type == OBJ_COMMIT) {
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struct commit *commit = (struct commit *)object;
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if (parse_commit(commit) < 0)
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die("unable to parse commit %s", name);
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if (flags & UNINTERESTING) {
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mark_parents_uninteresting(commit);
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revs->limited = 1;
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}
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if (revs->show_source && !commit->util)
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commit->util = xstrdup(name);
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return commit;
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}
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/*
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* Tree object? Either mark it uninteresting, or add it
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* to the list of objects to look at later..
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*/
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if (object->type == OBJ_TREE) {
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struct tree *tree = (struct tree *)object;
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if (!revs->tree_objects)
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return NULL;
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if (flags & UNINTERESTING) {
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mark_tree_contents_uninteresting(tree);
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return NULL;
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}
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add_pending_object_with_path(revs, object, name, mode, path);
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return NULL;
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}
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/*
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* Blob object? You know the drill by now..
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*/
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if (object->type == OBJ_BLOB) {
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if (!revs->blob_objects)
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return NULL;
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if (flags & UNINTERESTING)
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return NULL;
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add_pending_object_with_path(revs, object, name, mode, path);
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return NULL;
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}
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die("%s is unknown object", name);
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}
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static int everybody_uninteresting(struct commit_list *orig,
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struct commit **interesting_cache)
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{
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struct commit_list *list = orig;
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if (*interesting_cache) {
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struct commit *commit = *interesting_cache;
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if (!(commit->object.flags & UNINTERESTING))
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return 0;
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}
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while (list) {
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struct commit *commit = list->item;
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list = list->next;
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if (commit->object.flags & UNINTERESTING)
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continue;
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*interesting_cache = commit;
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return 0;
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}
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return 1;
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}
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/*
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* A definition of "relevant" commit that we can use to simplify limited graphs
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* by eliminating side branches.
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*
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* A "relevant" commit is one that is !UNINTERESTING (ie we are including it
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* in our list), or that is a specified BOTTOM commit. Then after computing
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* a limited list, during processing we can generally ignore boundary merges
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* coming from outside the graph, (ie from irrelevant parents), and treat
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* those merges as if they were single-parent. TREESAME is defined to consider
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* only relevant parents, if any. If we are TREESAME to our on-graph parents,
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* we don't care if we were !TREESAME to non-graph parents.
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*
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* Treating bottom commits as relevant ensures that a limited graph's
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* connection to the actual bottom commit is not viewed as a side branch, but
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* treated as part of the graph. For example:
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*
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* ....Z...A---X---o---o---B
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* . /
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* W---Y
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*
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* When computing "A..B", the A-X connection is at least as important as
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* Y-X, despite A being flagged UNINTERESTING.
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*
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* And when computing --ancestry-path "A..B", the A-X connection is more
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* important than Y-X, despite both A and Y being flagged UNINTERESTING.
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*/
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static inline int relevant_commit(struct commit *commit)
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{
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return (commit->object.flags & (UNINTERESTING | BOTTOM)) != UNINTERESTING;
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}
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/*
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* Return a single relevant commit from a parent list. If we are a TREESAME
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* commit, and this selects one of our parents, then we can safely simplify to
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* that parent.
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*/
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static struct commit *one_relevant_parent(const struct rev_info *revs,
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struct commit_list *orig)
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{
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struct commit_list *list = orig;
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struct commit *relevant = NULL;
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if (!orig)
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return NULL;
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/*
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* For 1-parent commits, or if first-parent-only, then return that
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* first parent (even if not "relevant" by the above definition).
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* TREESAME will have been set purely on that parent.
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*/
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if (revs->first_parent_only || !orig->next)
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return orig->item;
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/*
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* For multi-parent commits, identify a sole relevant parent, if any.
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* If we have only one relevant parent, then TREESAME will be set purely
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* with regard to that parent, and we can simplify accordingly.
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*
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* If we have more than one relevant parent, or no relevant parents
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* (and multiple irrelevant ones), then we can't select a parent here
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* and return NULL.
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*/
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while (list) {
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struct commit *commit = list->item;
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list = list->next;
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if (relevant_commit(commit)) {
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if (relevant)
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return NULL;
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relevant = commit;
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}
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}
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return relevant;
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}
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/*
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* The goal is to get REV_TREE_NEW as the result only if the
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* diff consists of all '+' (and no other changes), REV_TREE_OLD
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* if the whole diff is removal of old data, and otherwise
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* REV_TREE_DIFFERENT (of course if the trees are the same we
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* want REV_TREE_SAME).
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* That means that once we get to REV_TREE_DIFFERENT, we do not
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* have to look any further.
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*/
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static int tree_difference = REV_TREE_SAME;
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static void file_add_remove(struct diff_options *options,
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int addremove, unsigned mode,
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const unsigned char *sha1,
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int sha1_valid,
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const char *fullpath, unsigned dirty_submodule)
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{
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int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD;
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tree_difference |= diff;
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if (tree_difference == REV_TREE_DIFFERENT)
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DIFF_OPT_SET(options, HAS_CHANGES);
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}
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static void file_change(struct diff_options *options,
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unsigned old_mode, unsigned new_mode,
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const unsigned char *old_sha1,
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const unsigned char *new_sha1,
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int old_sha1_valid, int new_sha1_valid,
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const char *fullpath,
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unsigned old_dirty_submodule, unsigned new_dirty_submodule)
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{
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tree_difference = REV_TREE_DIFFERENT;
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DIFF_OPT_SET(options, HAS_CHANGES);
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}
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static int rev_compare_tree(struct rev_info *revs,
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struct commit *parent, struct commit *commit)
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{
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struct tree *t1 = parent->tree;
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struct tree *t2 = commit->tree;
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if (!t1)
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return REV_TREE_NEW;
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if (!t2)
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return REV_TREE_OLD;
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if (revs->simplify_by_decoration) {
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/*
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* If we are simplifying by decoration, then the commit
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* is worth showing if it has a tag pointing at it.
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*/
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if (get_name_decoration(&commit->object))
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return REV_TREE_DIFFERENT;
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/*
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* A commit that is not pointed by a tag is uninteresting
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* if we are not limited by path. This means that you will
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* see the usual "commits that touch the paths" plus any
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* tagged commit by specifying both --simplify-by-decoration
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* and pathspec.
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*/
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if (!revs->prune_data.nr)
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return REV_TREE_SAME;
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}
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tree_difference = REV_TREE_SAME;
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DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
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if (diff_tree_sha1(t1->object.oid.hash, t2->object.oid.hash, "",
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&revs->pruning) < 0)
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return REV_TREE_DIFFERENT;
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return tree_difference;
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}
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|
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static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
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{
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int retval;
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struct tree *t1 = commit->tree;
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|
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if (!t1)
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return 0;
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tree_difference = REV_TREE_SAME;
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DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
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retval = diff_tree_sha1(NULL, t1->object.oid.hash, "", &revs->pruning);
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return retval >= 0 && (tree_difference == REV_TREE_SAME);
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}
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|
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struct treesame_state {
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unsigned int nparents;
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unsigned char treesame[FLEX_ARRAY];
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};
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|
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static struct treesame_state *initialise_treesame(struct rev_info *revs, struct commit *commit)
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{
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|
unsigned n = commit_list_count(commit->parents);
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struct treesame_state *st = xcalloc(1, st_add(sizeof(*st), n));
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st->nparents = n;
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add_decoration(&revs->treesame, &commit->object, st);
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return st;
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|
}
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|
|
/*
|
|
* Must be called immediately after removing the nth_parent from a commit's
|
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* parent list, if we are maintaining the per-parent treesame[] decoration.
|
|
* This does not recalculate the master TREESAME flag - update_treesame()
|
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* should be called to update it after a sequence of treesame[] modifications
|
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* that may have affected it.
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*/
|
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static int compact_treesame(struct rev_info *revs, struct commit *commit, unsigned nth_parent)
|
|
{
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struct treesame_state *st;
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int old_same;
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|
|
if (!commit->parents) {
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/*
|
|
* Have just removed the only parent from a non-merge.
|
|
* Different handling, as we lack decoration.
|
|
*/
|
|
if (nth_parent != 0)
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|
die("compact_treesame %u", nth_parent);
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|
old_same = !!(commit->object.flags & TREESAME);
|
|
if (rev_same_tree_as_empty(revs, commit))
|
|
commit->object.flags |= TREESAME;
|
|
else
|
|
commit->object.flags &= ~TREESAME;
|
|
return old_same;
|
|
}
|
|
|
|
st = lookup_decoration(&revs->treesame, &commit->object);
|
|
if (!st || nth_parent >= st->nparents)
|
|
die("compact_treesame %u", nth_parent);
|
|
|
|
old_same = st->treesame[nth_parent];
|
|
memmove(st->treesame + nth_parent,
|
|
st->treesame + nth_parent + 1,
|
|
st->nparents - nth_parent - 1);
|
|
|
|
/*
|
|
* If we've just become a non-merge commit, update TREESAME
|
|
* immediately, and remove the no-longer-needed decoration.
|
|
* If still a merge, defer update until update_treesame().
|
|
*/
|
|
if (--st->nparents == 1) {
|
|
if (commit->parents->next)
|
|
die("compact_treesame parents mismatch");
|
|
if (st->treesame[0] && revs->dense)
|
|
commit->object.flags |= TREESAME;
|
|
else
|
|
commit->object.flags &= ~TREESAME;
|
|
free(add_decoration(&revs->treesame, &commit->object, NULL));
|
|
}
|
|
|
|
return old_same;
|
|
}
|
|
|
|
static unsigned update_treesame(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (commit->parents && commit->parents->next) {
|
|
unsigned n;
|
|
struct treesame_state *st;
|
|
struct commit_list *p;
|
|
unsigned relevant_parents;
|
|
unsigned relevant_change, irrelevant_change;
|
|
|
|
st = lookup_decoration(&revs->treesame, &commit->object);
|
|
if (!st)
|
|
die("update_treesame %s", oid_to_hex(&commit->object.oid));
|
|
relevant_parents = 0;
|
|
relevant_change = irrelevant_change = 0;
|
|
for (p = commit->parents, n = 0; p; n++, p = p->next) {
|
|
if (relevant_commit(p->item)) {
|
|
relevant_change |= !st->treesame[n];
|
|
relevant_parents++;
|
|
} else
|
|
irrelevant_change |= !st->treesame[n];
|
|
}
|
|
if (relevant_parents ? relevant_change : irrelevant_change)
|
|
commit->object.flags &= ~TREESAME;
|
|
else
|
|
commit->object.flags |= TREESAME;
|
|
}
|
|
|
|
return commit->object.flags & TREESAME;
|
|
}
|
|
|
|
static inline int limiting_can_increase_treesame(const struct rev_info *revs)
|
|
{
|
|
/*
|
|
* TREESAME is irrelevant unless prune && dense;
|
|
* if simplify_history is set, we can't have a mixture of TREESAME and
|
|
* !TREESAME INTERESTING parents (and we don't have treesame[]
|
|
* decoration anyway);
|
|
* if first_parent_only is set, then the TREESAME flag is locked
|
|
* against the first parent (and again we lack treesame[] decoration).
|
|
*/
|
|
return revs->prune && revs->dense &&
|
|
!revs->simplify_history &&
|
|
!revs->first_parent_only;
|
|
}
|
|
|
|
static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp, *parent;
|
|
struct treesame_state *ts = NULL;
|
|
int relevant_change = 0, irrelevant_change = 0;
|
|
int relevant_parents, nth_parent;
|
|
|
|
/*
|
|
* If we don't do pruning, everything is interesting
|
|
*/
|
|
if (!revs->prune)
|
|
return;
|
|
|
|
if (!commit->tree)
|
|
return;
|
|
|
|
if (!commit->parents) {
|
|
if (rev_same_tree_as_empty(revs, commit))
|
|
commit->object.flags |= TREESAME;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Normal non-merge commit? If we don't want to make the
|
|
* history dense, we consider it always to be a change..
|
|
*/
|
|
if (!revs->dense && !commit->parents->next)
|
|
return;
|
|
|
|
for (pp = &commit->parents, nth_parent = 0, relevant_parents = 0;
|
|
(parent = *pp) != NULL;
|
|
pp = &parent->next, nth_parent++) {
|
|
struct commit *p = parent->item;
|
|
if (relevant_commit(p))
|
|
relevant_parents++;
|
|
|
|
if (nth_parent == 1) {
|
|
/*
|
|
* This our second loop iteration - so we now know
|
|
* we're dealing with a merge.
|
|
*
|
|
* Do not compare with later parents when we care only about
|
|
* the first parent chain, in order to avoid derailing the
|
|
* traversal to follow a side branch that brought everything
|
|
* in the path we are limited to by the pathspec.
|
|
*/
|
|
if (revs->first_parent_only)
|
|
break;
|
|
/*
|
|
* If this will remain a potentially-simplifiable
|
|
* merge, remember per-parent treesame if needed.
|
|
* Initialise the array with the comparison from our
|
|
* first iteration.
|
|
*/
|
|
if (revs->treesame.name &&
|
|
!revs->simplify_history &&
|
|
!(commit->object.flags & UNINTERESTING)) {
|
|
ts = initialise_treesame(revs, commit);
|
|
if (!(irrelevant_change || relevant_change))
|
|
ts->treesame[0] = 1;
|
|
}
|
|
}
|
|
if (parse_commit(p) < 0)
|
|
die("cannot simplify commit %s (because of %s)",
|
|
oid_to_hex(&commit->object.oid),
|
|
oid_to_hex(&p->object.oid));
|
|
switch (rev_compare_tree(revs, p, commit)) {
|
|
case REV_TREE_SAME:
|
|
if (!revs->simplify_history || !relevant_commit(p)) {
|
|
/* Even if a merge with an uninteresting
|
|
* side branch brought the entire change
|
|
* we are interested in, we do not want
|
|
* to lose the other branches of this
|
|
* merge, so we just keep going.
|
|
*/
|
|
if (ts)
|
|
ts->treesame[nth_parent] = 1;
|
|
continue;
|
|
}
|
|
parent->next = NULL;
|
|
commit->parents = parent;
|
|
commit->object.flags |= TREESAME;
|
|
return;
|
|
|
|
case REV_TREE_NEW:
|
|
if (revs->remove_empty_trees &&
|
|
rev_same_tree_as_empty(revs, p)) {
|
|
/* We are adding all the specified
|
|
* paths from this parent, so the
|
|
* history beyond this parent is not
|
|
* interesting. Remove its parents
|
|
* (they are grandparents for us).
|
|
* IOW, we pretend this parent is a
|
|
* "root" commit.
|
|
*/
|
|
if (parse_commit(p) < 0)
|
|
die("cannot simplify commit %s (invalid %s)",
|
|
oid_to_hex(&commit->object.oid),
|
|
oid_to_hex(&p->object.oid));
|
|
p->parents = NULL;
|
|
}
|
|
/* fallthrough */
|
|
case REV_TREE_OLD:
|
|
case REV_TREE_DIFFERENT:
|
|
if (relevant_commit(p))
|
|
relevant_change = 1;
|
|
else
|
|
irrelevant_change = 1;
|
|
continue;
|
|
}
|
|
die("bad tree compare for commit %s", oid_to_hex(&commit->object.oid));
|
|
}
|
|
|
|
/*
|
|
* TREESAME is straightforward for single-parent commits. For merge
|
|
* commits, it is most useful to define it so that "irrelevant"
|
|
* parents cannot make us !TREESAME - if we have any relevant
|
|
* parents, then we only consider TREESAMEness with respect to them,
|
|
* allowing irrelevant merges from uninteresting branches to be
|
|
* simplified away. Only if we have only irrelevant parents do we
|
|
* base TREESAME on them. Note that this logic is replicated in
|
|
* update_treesame, which should be kept in sync.
|
|
*/
|
|
if (relevant_parents ? !relevant_change : !irrelevant_change)
|
|
commit->object.flags |= TREESAME;
|
|
}
|
|
|
|
static void commit_list_insert_by_date_cached(struct commit *p, struct commit_list **head,
|
|
struct commit_list *cached_base, struct commit_list **cache)
|
|
{
|
|
struct commit_list *new_entry;
|
|
|
|
if (cached_base && p->date < cached_base->item->date)
|
|
new_entry = commit_list_insert_by_date(p, &cached_base->next);
|
|
else
|
|
new_entry = commit_list_insert_by_date(p, head);
|
|
|
|
if (cache && (!*cache || p->date < (*cache)->item->date))
|
|
*cache = new_entry;
|
|
}
|
|
|
|
static int add_parents_to_list(struct rev_info *revs, struct commit *commit,
|
|
struct commit_list **list, struct commit_list **cache_ptr)
|
|
{
|
|
struct commit_list *parent = commit->parents;
|
|
unsigned left_flag;
|
|
struct commit_list *cached_base = cache_ptr ? *cache_ptr : NULL;
|
|
|
|
if (commit->object.flags & ADDED)
|
|
return 0;
|
|
commit->object.flags |= ADDED;
|
|
|
|
if (revs->include_check &&
|
|
!revs->include_check(commit, revs->include_check_data))
|
|
return 0;
|
|
|
|
/*
|
|
* If the commit is uninteresting, don't try to
|
|
* prune parents - we want the maximal uninteresting
|
|
* set.
|
|
*
|
|
* Normally we haven't parsed the parent
|
|
* yet, so we won't have a parent of a parent
|
|
* here. However, it may turn out that we've
|
|
* reached this commit some other way (where it
|
|
* wasn't uninteresting), in which case we need
|
|
* to mark its parents recursively too..
|
|
*/
|
|
if (commit->object.flags & UNINTERESTING) {
|
|
while (parent) {
|
|
struct commit *p = parent->item;
|
|
parent = parent->next;
|
|
if (p)
|
|
p->object.flags |= UNINTERESTING;
|
|
if (parse_commit_gently(p, 1) < 0)
|
|
continue;
|
|
if (p->parents)
|
|
mark_parents_uninteresting(p);
|
|
if (p->object.flags & SEEN)
|
|
continue;
|
|
p->object.flags |= SEEN;
|
|
commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Ok, the commit wasn't uninteresting. Try to
|
|
* simplify the commit history and find the parent
|
|
* that has no differences in the path set if one exists.
|
|
*/
|
|
try_to_simplify_commit(revs, commit);
|
|
|
|
if (revs->no_walk)
|
|
return 0;
|
|
|
|
left_flag = (commit->object.flags & SYMMETRIC_LEFT);
|
|
|
|
for (parent = commit->parents; parent; parent = parent->next) {
|
|
struct commit *p = parent->item;
|
|
|
|
if (parse_commit_gently(p, revs->ignore_missing_links) < 0)
|
|
return -1;
|
|
if (revs->show_source && !p->util)
|
|
p->util = commit->util;
|
|
p->object.flags |= left_flag;
|
|
if (!(p->object.flags & SEEN)) {
|
|
p->object.flags |= SEEN;
|
|
commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr);
|
|
}
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
|
|
{
|
|
struct commit_list *p;
|
|
int left_count = 0, right_count = 0;
|
|
int left_first;
|
|
struct patch_ids ids;
|
|
unsigned cherry_flag;
|
|
|
|
/* First count the commits on the left and on the right */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
unsigned flags = commit->object.flags;
|
|
if (flags & BOUNDARY)
|
|
;
|
|
else if (flags & SYMMETRIC_LEFT)
|
|
left_count++;
|
|
else
|
|
right_count++;
|
|
}
|
|
|
|
if (!left_count || !right_count)
|
|
return;
|
|
|
|
left_first = left_count < right_count;
|
|
init_patch_ids(&ids);
|
|
ids.diffopts.pathspec = revs->diffopt.pathspec;
|
|
|
|
/* Compute patch-ids for one side */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
unsigned flags = commit->object.flags;
|
|
|
|
if (flags & BOUNDARY)
|
|
continue;
|
|
/*
|
|
* If we have fewer left, left_first is set and we omit
|
|
* commits on the right branch in this loop. If we have
|
|
* fewer right, we skip the left ones.
|
|
*/
|
|
if (left_first != !!(flags & SYMMETRIC_LEFT))
|
|
continue;
|
|
add_commit_patch_id(commit, &ids);
|
|
}
|
|
|
|
/* either cherry_mark or cherry_pick are true */
|
|
cherry_flag = revs->cherry_mark ? PATCHSAME : SHOWN;
|
|
|
|
/* Check the other side */
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
struct patch_id *id;
|
|
unsigned flags = commit->object.flags;
|
|
|
|
if (flags & BOUNDARY)
|
|
continue;
|
|
/*
|
|
* If we have fewer left, left_first is set and we omit
|
|
* commits on the left branch in this loop.
|
|
*/
|
|
if (left_first == !!(flags & SYMMETRIC_LEFT))
|
|
continue;
|
|
|
|
/*
|
|
* Have we seen the same patch id?
|
|
*/
|
|
id = has_commit_patch_id(commit, &ids);
|
|
if (!id)
|
|
continue;
|
|
|
|
commit->object.flags |= cherry_flag;
|
|
id->commit->object.flags |= cherry_flag;
|
|
}
|
|
|
|
free_patch_ids(&ids);
|
|
}
|
|
|
|
/* How many extra uninteresting commits we want to see.. */
|
|
#define SLOP 5
|
|
|
|
static int still_interesting(struct commit_list *src, unsigned long date, int slop,
|
|
struct commit **interesting_cache)
|
|
{
|
|
/*
|
|
* No source list at all? We're definitely done..
|
|
*/
|
|
if (!src)
|
|
return 0;
|
|
|
|
/*
|
|
* Does the destination list contain entries with a date
|
|
* before the source list? Definitely _not_ done.
|
|
*/
|
|
if (date <= src->item->date)
|
|
return SLOP;
|
|
|
|
/*
|
|
* Does the source list still have interesting commits in
|
|
* it? Definitely not done..
|
|
*/
|
|
if (!everybody_uninteresting(src, interesting_cache))
|
|
return SLOP;
|
|
|
|
/* Ok, we're closing in.. */
|
|
return slop-1;
|
|
}
|
|
|
|
/*
|
|
* "rev-list --ancestry-path A..B" computes commits that are ancestors
|
|
* of B but not ancestors of A but further limits the result to those
|
|
* that are descendants of A. This takes the list of bottom commits and
|
|
* the result of "A..B" without --ancestry-path, and limits the latter
|
|
* further to the ones that can reach one of the commits in "bottom".
|
|
*/
|
|
static void limit_to_ancestry(struct commit_list *bottom, struct commit_list *list)
|
|
{
|
|
struct commit_list *p;
|
|
struct commit_list *rlist = NULL;
|
|
int made_progress;
|
|
|
|
/*
|
|
* Reverse the list so that it will be likely that we would
|
|
* process parents before children.
|
|
*/
|
|
for (p = list; p; p = p->next)
|
|
commit_list_insert(p->item, &rlist);
|
|
|
|
for (p = bottom; p; p = p->next)
|
|
p->item->object.flags |= TMP_MARK;
|
|
|
|
/*
|
|
* Mark the ones that can reach bottom commits in "list",
|
|
* in a bottom-up fashion.
|
|
*/
|
|
do {
|
|
made_progress = 0;
|
|
for (p = rlist; p; p = p->next) {
|
|
struct commit *c = p->item;
|
|
struct commit_list *parents;
|
|
if (c->object.flags & (TMP_MARK | UNINTERESTING))
|
|
continue;
|
|
for (parents = c->parents;
|
|
parents;
|
|
parents = parents->next) {
|
|
if (!(parents->item->object.flags & TMP_MARK))
|
|
continue;
|
|
c->object.flags |= TMP_MARK;
|
|
made_progress = 1;
|
|
break;
|
|
}
|
|
}
|
|
} while (made_progress);
|
|
|
|
/*
|
|
* NEEDSWORK: decide if we want to remove parents that are
|
|
* not marked with TMP_MARK from commit->parents for commits
|
|
* in the resulting list. We may not want to do that, though.
|
|
*/
|
|
|
|
/*
|
|
* The ones that are not marked with TMP_MARK are uninteresting
|
|
*/
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *c = p->item;
|
|
if (c->object.flags & TMP_MARK)
|
|
continue;
|
|
c->object.flags |= UNINTERESTING;
|
|
}
|
|
|
|
/* We are done with the TMP_MARK */
|
|
for (p = list; p; p = p->next)
|
|
p->item->object.flags &= ~TMP_MARK;
|
|
for (p = bottom; p; p = p->next)
|
|
p->item->object.flags &= ~TMP_MARK;
|
|
free_commit_list(rlist);
|
|
}
|
|
|
|
/*
|
|
* Before walking the history, keep the set of "negative" refs the
|
|
* caller has asked to exclude.
|
|
*
|
|
* This is used to compute "rev-list --ancestry-path A..B", as we need
|
|
* to filter the result of "A..B" further to the ones that can actually
|
|
* reach A.
|
|
*/
|
|
static struct commit_list *collect_bottom_commits(struct commit_list *list)
|
|
{
|
|
struct commit_list *elem, *bottom = NULL;
|
|
for (elem = list; elem; elem = elem->next)
|
|
if (elem->item->object.flags & BOTTOM)
|
|
commit_list_insert(elem->item, &bottom);
|
|
return bottom;
|
|
}
|
|
|
|
/* Assumes either left_only or right_only is set */
|
|
static void limit_left_right(struct commit_list *list, struct rev_info *revs)
|
|
{
|
|
struct commit_list *p;
|
|
|
|
for (p = list; p; p = p->next) {
|
|
struct commit *commit = p->item;
|
|
|
|
if (revs->right_only) {
|
|
if (commit->object.flags & SYMMETRIC_LEFT)
|
|
commit->object.flags |= SHOWN;
|
|
} else /* revs->left_only is set */
|
|
if (!(commit->object.flags & SYMMETRIC_LEFT))
|
|
commit->object.flags |= SHOWN;
|
|
}
|
|
}
|
|
|
|
static int limit_list(struct rev_info *revs)
|
|
{
|
|
int slop = SLOP;
|
|
unsigned long date = ~0ul;
|
|
struct commit_list *list = revs->commits;
|
|
struct commit_list *newlist = NULL;
|
|
struct commit_list **p = &newlist;
|
|
struct commit_list *bottom = NULL;
|
|
struct commit *interesting_cache = NULL;
|
|
|
|
if (revs->ancestry_path) {
|
|
bottom = collect_bottom_commits(list);
|
|
if (!bottom)
|
|
die("--ancestry-path given but there are no bottom commits");
|
|
}
|
|
|
|
while (list) {
|
|
struct commit *commit = pop_commit(&list);
|
|
struct object *obj = &commit->object;
|
|
show_early_output_fn_t show;
|
|
|
|
if (commit == interesting_cache)
|
|
interesting_cache = NULL;
|
|
|
|
if (revs->max_age != -1 && (commit->date < revs->max_age))
|
|
obj->flags |= UNINTERESTING;
|
|
if (add_parents_to_list(revs, commit, &list, NULL) < 0)
|
|
return -1;
|
|
if (obj->flags & UNINTERESTING) {
|
|
mark_parents_uninteresting(commit);
|
|
if (revs->show_all)
|
|
p = &commit_list_insert(commit, p)->next;
|
|
slop = still_interesting(list, date, slop, &interesting_cache);
|
|
if (slop)
|
|
continue;
|
|
/* If showing all, add the whole pending list to the end */
|
|
if (revs->show_all)
|
|
*p = list;
|
|
break;
|
|
}
|
|
if (revs->min_age != -1 && (commit->date > revs->min_age))
|
|
continue;
|
|
date = commit->date;
|
|
p = &commit_list_insert(commit, p)->next;
|
|
|
|
show = show_early_output;
|
|
if (!show)
|
|
continue;
|
|
|
|
show(revs, newlist);
|
|
show_early_output = NULL;
|
|
}
|
|
if (revs->cherry_pick || revs->cherry_mark)
|
|
cherry_pick_list(newlist, revs);
|
|
|
|
if (revs->left_only || revs->right_only)
|
|
limit_left_right(newlist, revs);
|
|
|
|
if (bottom) {
|
|
limit_to_ancestry(bottom, newlist);
|
|
free_commit_list(bottom);
|
|
}
|
|
|
|
/*
|
|
* Check if any commits have become TREESAME by some of their parents
|
|
* becoming UNINTERESTING.
|
|
*/
|
|
if (limiting_can_increase_treesame(revs))
|
|
for (list = newlist; list; list = list->next) {
|
|
struct commit *c = list->item;
|
|
if (c->object.flags & (UNINTERESTING | TREESAME))
|
|
continue;
|
|
update_treesame(revs, c);
|
|
}
|
|
|
|
revs->commits = newlist;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Add an entry to refs->cmdline with the specified information.
|
|
* *name is copied.
|
|
*/
|
|
static void add_rev_cmdline(struct rev_info *revs,
|
|
struct object *item,
|
|
const char *name,
|
|
int whence,
|
|
unsigned flags)
|
|
{
|
|
struct rev_cmdline_info *info = &revs->cmdline;
|
|
int nr = info->nr;
|
|
|
|
ALLOC_GROW(info->rev, nr + 1, info->alloc);
|
|
info->rev[nr].item = item;
|
|
info->rev[nr].name = xstrdup(name);
|
|
info->rev[nr].whence = whence;
|
|
info->rev[nr].flags = flags;
|
|
info->nr++;
|
|
}
|
|
|
|
static void add_rev_cmdline_list(struct rev_info *revs,
|
|
struct commit_list *commit_list,
|
|
int whence,
|
|
unsigned flags)
|
|
{
|
|
while (commit_list) {
|
|
struct object *object = &commit_list->item->object;
|
|
add_rev_cmdline(revs, object, oid_to_hex(&object->oid),
|
|
whence, flags);
|
|
commit_list = commit_list->next;
|
|
}
|
|
}
|
|
|
|
struct all_refs_cb {
|
|
int all_flags;
|
|
int warned_bad_reflog;
|
|
struct rev_info *all_revs;
|
|
const char *name_for_errormsg;
|
|
};
|
|
|
|
int ref_excluded(struct string_list *ref_excludes, const char *path)
|
|
{
|
|
struct string_list_item *item;
|
|
|
|
if (!ref_excludes)
|
|
return 0;
|
|
for_each_string_list_item(item, ref_excludes) {
|
|
if (!wildmatch(item->string, path, 0, NULL))
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int handle_one_ref(const char *path, const struct object_id *oid,
|
|
int flag, void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
struct object *object;
|
|
|
|
if (ref_excluded(cb->all_revs->ref_excludes, path))
|
|
return 0;
|
|
|
|
object = get_reference(cb->all_revs, path, oid->hash, cb->all_flags);
|
|
add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags);
|
|
add_pending_sha1(cb->all_revs, path, oid->hash, cb->all_flags);
|
|
return 0;
|
|
}
|
|
|
|
static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs,
|
|
unsigned flags)
|
|
{
|
|
cb->all_revs = revs;
|
|
cb->all_flags = flags;
|
|
}
|
|
|
|
void clear_ref_exclusion(struct string_list **ref_excludes_p)
|
|
{
|
|
if (*ref_excludes_p) {
|
|
string_list_clear(*ref_excludes_p, 0);
|
|
free(*ref_excludes_p);
|
|
}
|
|
*ref_excludes_p = NULL;
|
|
}
|
|
|
|
void add_ref_exclusion(struct string_list **ref_excludes_p, const char *exclude)
|
|
{
|
|
if (!*ref_excludes_p) {
|
|
*ref_excludes_p = xcalloc(1, sizeof(**ref_excludes_p));
|
|
(*ref_excludes_p)->strdup_strings = 1;
|
|
}
|
|
string_list_append(*ref_excludes_p, exclude);
|
|
}
|
|
|
|
static void handle_refs(const char *submodule, struct rev_info *revs, unsigned flags,
|
|
int (*for_each)(const char *, each_ref_fn, void *))
|
|
{
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, flags);
|
|
for_each(submodule, handle_one_ref, &cb);
|
|
}
|
|
|
|
static void handle_one_reflog_commit(struct object_id *oid, void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
if (!is_null_oid(oid)) {
|
|
struct object *o = parse_object(oid->hash);
|
|
if (o) {
|
|
o->flags |= cb->all_flags;
|
|
/* ??? CMDLINEFLAGS ??? */
|
|
add_pending_object(cb->all_revs, o, "");
|
|
}
|
|
else if (!cb->warned_bad_reflog) {
|
|
warning("reflog of '%s' references pruned commits",
|
|
cb->name_for_errormsg);
|
|
cb->warned_bad_reflog = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int handle_one_reflog_ent(struct object_id *ooid, struct object_id *noid,
|
|
const char *email, unsigned long timestamp, int tz,
|
|
const char *message, void *cb_data)
|
|
{
|
|
handle_one_reflog_commit(ooid, cb_data);
|
|
handle_one_reflog_commit(noid, cb_data);
|
|
return 0;
|
|
}
|
|
|
|
static int handle_one_reflog(const char *path, const struct object_id *oid,
|
|
int flag, void *cb_data)
|
|
{
|
|
struct all_refs_cb *cb = cb_data;
|
|
cb->warned_bad_reflog = 0;
|
|
cb->name_for_errormsg = path;
|
|
for_each_reflog_ent(path, handle_one_reflog_ent, cb_data);
|
|
return 0;
|
|
}
|
|
|
|
void add_reflogs_to_pending(struct rev_info *revs, unsigned flags)
|
|
{
|
|
struct all_refs_cb cb;
|
|
|
|
cb.all_revs = revs;
|
|
cb.all_flags = flags;
|
|
for_each_reflog(handle_one_reflog, &cb);
|
|
}
|
|
|
|
static void add_cache_tree(struct cache_tree *it, struct rev_info *revs,
|
|
struct strbuf *path)
|
|
{
|
|
size_t baselen = path->len;
|
|
int i;
|
|
|
|
if (it->entry_count >= 0) {
|
|
struct tree *tree = lookup_tree(it->sha1);
|
|
add_pending_object_with_path(revs, &tree->object, "",
|
|
040000, path->buf);
|
|
}
|
|
|
|
for (i = 0; i < it->subtree_nr; i++) {
|
|
struct cache_tree_sub *sub = it->down[i];
|
|
strbuf_addf(path, "%s%s", baselen ? "/" : "", sub->name);
|
|
add_cache_tree(sub->cache_tree, revs, path);
|
|
strbuf_setlen(path, baselen);
|
|
}
|
|
|
|
}
|
|
|
|
void add_index_objects_to_pending(struct rev_info *revs, unsigned flags)
|
|
{
|
|
int i;
|
|
|
|
read_cache();
|
|
for (i = 0; i < active_nr; i++) {
|
|
struct cache_entry *ce = active_cache[i];
|
|
struct blob *blob;
|
|
|
|
if (S_ISGITLINK(ce->ce_mode))
|
|
continue;
|
|
|
|
blob = lookup_blob(ce->oid.hash);
|
|
if (!blob)
|
|
die("unable to add index blob to traversal");
|
|
add_pending_object_with_path(revs, &blob->object, "",
|
|
ce->ce_mode, ce->name);
|
|
}
|
|
|
|
if (active_cache_tree) {
|
|
struct strbuf path = STRBUF_INIT;
|
|
add_cache_tree(active_cache_tree, revs, &path);
|
|
strbuf_release(&path);
|
|
}
|
|
}
|
|
|
|
static int add_parents_only(struct rev_info *revs, const char *arg_, int flags,
|
|
int exclude_parent)
|
|
{
|
|
unsigned char sha1[20];
|
|
struct object *it;
|
|
struct commit *commit;
|
|
struct commit_list *parents;
|
|
int parent_number;
|
|
const char *arg = arg_;
|
|
|
|
if (*arg == '^') {
|
|
flags ^= UNINTERESTING | BOTTOM;
|
|
arg++;
|
|
}
|
|
if (get_sha1_committish(arg, sha1))
|
|
return 0;
|
|
while (1) {
|
|
it = get_reference(revs, arg, sha1, 0);
|
|
if (!it && revs->ignore_missing)
|
|
return 0;
|
|
if (it->type != OBJ_TAG)
|
|
break;
|
|
if (!((struct tag*)it)->tagged)
|
|
return 0;
|
|
hashcpy(sha1, ((struct tag*)it)->tagged->oid.hash);
|
|
}
|
|
if (it->type != OBJ_COMMIT)
|
|
return 0;
|
|
commit = (struct commit *)it;
|
|
if (exclude_parent &&
|
|
exclude_parent > commit_list_count(commit->parents))
|
|
return 0;
|
|
for (parents = commit->parents, parent_number = 1;
|
|
parents;
|
|
parents = parents->next, parent_number++) {
|
|
if (exclude_parent && parent_number != exclude_parent)
|
|
continue;
|
|
|
|
it = &parents->item->object;
|
|
it->flags |= flags;
|
|
add_rev_cmdline(revs, it, arg_, REV_CMD_PARENTS_ONLY, flags);
|
|
add_pending_object(revs, it, arg);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void init_revisions(struct rev_info *revs, const char *prefix)
|
|
{
|
|
memset(revs, 0, sizeof(*revs));
|
|
|
|
revs->abbrev = DEFAULT_ABBREV;
|
|
revs->ignore_merges = 1;
|
|
revs->simplify_history = 1;
|
|
DIFF_OPT_SET(&revs->pruning, RECURSIVE);
|
|
DIFF_OPT_SET(&revs->pruning, QUICK);
|
|
revs->pruning.add_remove = file_add_remove;
|
|
revs->pruning.change = file_change;
|
|
revs->sort_order = REV_SORT_IN_GRAPH_ORDER;
|
|
revs->dense = 1;
|
|
revs->prefix = prefix;
|
|
revs->max_age = -1;
|
|
revs->min_age = -1;
|
|
revs->skip_count = -1;
|
|
revs->max_count = -1;
|
|
revs->max_parents = -1;
|
|
revs->expand_tabs_in_log = -1;
|
|
|
|
revs->commit_format = CMIT_FMT_DEFAULT;
|
|
revs->expand_tabs_in_log_default = 8;
|
|
|
|
init_grep_defaults();
|
|
grep_init(&revs->grep_filter, prefix);
|
|
revs->grep_filter.status_only = 1;
|
|
revs->grep_filter.regflags = REG_NEWLINE;
|
|
|
|
diff_setup(&revs->diffopt);
|
|
if (prefix && !revs->diffopt.prefix) {
|
|
revs->diffopt.prefix = prefix;
|
|
revs->diffopt.prefix_length = strlen(prefix);
|
|
}
|
|
|
|
revs->notes_opt.use_default_notes = -1;
|
|
}
|
|
|
|
static void add_pending_commit_list(struct rev_info *revs,
|
|
struct commit_list *commit_list,
|
|
unsigned int flags)
|
|
{
|
|
while (commit_list) {
|
|
struct object *object = &commit_list->item->object;
|
|
object->flags |= flags;
|
|
add_pending_object(revs, object, oid_to_hex(&object->oid));
|
|
commit_list = commit_list->next;
|
|
}
|
|
}
|
|
|
|
static void prepare_show_merge(struct rev_info *revs)
|
|
{
|
|
struct commit_list *bases;
|
|
struct commit *head, *other;
|
|
unsigned char sha1[20];
|
|
const char **prune = NULL;
|
|
int i, prune_num = 1; /* counting terminating NULL */
|
|
|
|
if (get_sha1("HEAD", sha1))
|
|
die("--merge without HEAD?");
|
|
head = lookup_commit_or_die(sha1, "HEAD");
|
|
if (get_sha1("MERGE_HEAD", sha1))
|
|
die("--merge without MERGE_HEAD?");
|
|
other = lookup_commit_or_die(sha1, "MERGE_HEAD");
|
|
add_pending_object(revs, &head->object, "HEAD");
|
|
add_pending_object(revs, &other->object, "MERGE_HEAD");
|
|
bases = get_merge_bases(head, other);
|
|
add_rev_cmdline_list(revs, bases, REV_CMD_MERGE_BASE, UNINTERESTING | BOTTOM);
|
|
add_pending_commit_list(revs, bases, UNINTERESTING | BOTTOM);
|
|
free_commit_list(bases);
|
|
head->object.flags |= SYMMETRIC_LEFT;
|
|
|
|
if (!active_nr)
|
|
read_cache();
|
|
for (i = 0; i < active_nr; i++) {
|
|
const struct cache_entry *ce = active_cache[i];
|
|
if (!ce_stage(ce))
|
|
continue;
|
|
if (ce_path_match(ce, &revs->prune_data, NULL)) {
|
|
prune_num++;
|
|
REALLOC_ARRAY(prune, prune_num);
|
|
prune[prune_num-2] = ce->name;
|
|
prune[prune_num-1] = NULL;
|
|
}
|
|
while ((i+1 < active_nr) &&
|
|
ce_same_name(ce, active_cache[i+1]))
|
|
i++;
|
|
}
|
|
clear_pathspec(&revs->prune_data);
|
|
parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL,
|
|
PATHSPEC_PREFER_FULL | PATHSPEC_LITERAL_PATH, "", prune);
|
|
revs->limited = 1;
|
|
}
|
|
|
|
int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsigned revarg_opt)
|
|
{
|
|
struct object_context oc;
|
|
char *dotdot;
|
|
struct object *object;
|
|
unsigned char sha1[20];
|
|
int local_flags;
|
|
const char *arg = arg_;
|
|
int cant_be_filename = revarg_opt & REVARG_CANNOT_BE_FILENAME;
|
|
unsigned get_sha1_flags = 0;
|
|
|
|
flags = flags & UNINTERESTING ? flags | BOTTOM : flags & ~BOTTOM;
|
|
|
|
dotdot = strstr(arg, "..");
|
|
if (dotdot) {
|
|
unsigned char from_sha1[20];
|
|
const char *next = dotdot + 2;
|
|
const char *this = arg;
|
|
int symmetric = *next == '.';
|
|
unsigned int flags_exclude = flags ^ (UNINTERESTING | BOTTOM);
|
|
static const char head_by_default[] = "HEAD";
|
|
unsigned int a_flags;
|
|
|
|
*dotdot = 0;
|
|
next += symmetric;
|
|
|
|
if (!*next)
|
|
next = head_by_default;
|
|
if (dotdot == arg)
|
|
this = head_by_default;
|
|
if (this == head_by_default && next == head_by_default &&
|
|
!symmetric) {
|
|
/*
|
|
* Just ".."? That is not a range but the
|
|
* pathspec for the parent directory.
|
|
*/
|
|
if (!cant_be_filename) {
|
|
*dotdot = '.';
|
|
return -1;
|
|
}
|
|
}
|
|
if (!get_sha1_committish(this, from_sha1) &&
|
|
!get_sha1_committish(next, sha1)) {
|
|
struct object *a_obj, *b_obj;
|
|
|
|
if (!cant_be_filename) {
|
|
*dotdot = '.';
|
|
verify_non_filename(revs->prefix, arg);
|
|
}
|
|
|
|
a_obj = parse_object(from_sha1);
|
|
b_obj = parse_object(sha1);
|
|
if (!a_obj || !b_obj) {
|
|
missing:
|
|
if (revs->ignore_missing)
|
|
return 0;
|
|
die(symmetric
|
|
? "Invalid symmetric difference expression %s"
|
|
: "Invalid revision range %s", arg);
|
|
}
|
|
|
|
if (!symmetric) {
|
|
/* just A..B */
|
|
a_flags = flags_exclude;
|
|
} else {
|
|
/* A...B -- find merge bases between the two */
|
|
struct commit *a, *b;
|
|
struct commit_list *exclude;
|
|
|
|
a = (a_obj->type == OBJ_COMMIT
|
|
? (struct commit *)a_obj
|
|
: lookup_commit_reference(a_obj->oid.hash));
|
|
b = (b_obj->type == OBJ_COMMIT
|
|
? (struct commit *)b_obj
|
|
: lookup_commit_reference(b_obj->oid.hash));
|
|
if (!a || !b)
|
|
goto missing;
|
|
exclude = get_merge_bases(a, b);
|
|
add_rev_cmdline_list(revs, exclude,
|
|
REV_CMD_MERGE_BASE,
|
|
flags_exclude);
|
|
add_pending_commit_list(revs, exclude,
|
|
flags_exclude);
|
|
free_commit_list(exclude);
|
|
|
|
a_flags = flags | SYMMETRIC_LEFT;
|
|
}
|
|
|
|
a_obj->flags |= a_flags;
|
|
b_obj->flags |= flags;
|
|
add_rev_cmdline(revs, a_obj, this,
|
|
REV_CMD_LEFT, a_flags);
|
|
add_rev_cmdline(revs, b_obj, next,
|
|
REV_CMD_RIGHT, flags);
|
|
add_pending_object(revs, a_obj, this);
|
|
add_pending_object(revs, b_obj, next);
|
|
return 0;
|
|
}
|
|
*dotdot = '.';
|
|
}
|
|
|
|
dotdot = strstr(arg, "^@");
|
|
if (dotdot && !dotdot[2]) {
|
|
*dotdot = 0;
|
|
if (add_parents_only(revs, arg, flags, 0))
|
|
return 0;
|
|
*dotdot = '^';
|
|
}
|
|
dotdot = strstr(arg, "^!");
|
|
if (dotdot && !dotdot[2]) {
|
|
*dotdot = 0;
|
|
if (!add_parents_only(revs, arg, flags ^ (UNINTERESTING | BOTTOM), 0))
|
|
*dotdot = '^';
|
|
}
|
|
dotdot = strstr(arg, "^-");
|
|
if (dotdot) {
|
|
int exclude_parent = 1;
|
|
|
|
if (dotdot[2]) {
|
|
char *end;
|
|
exclude_parent = strtoul(dotdot + 2, &end, 10);
|
|
if (*end != '\0' || !exclude_parent)
|
|
return -1;
|
|
}
|
|
|
|
*dotdot = 0;
|
|
if (!add_parents_only(revs, arg, flags ^ (UNINTERESTING | BOTTOM), exclude_parent))
|
|
*dotdot = '^';
|
|
}
|
|
|
|
local_flags = 0;
|
|
if (*arg == '^') {
|
|
local_flags = UNINTERESTING | BOTTOM;
|
|
arg++;
|
|
}
|
|
|
|
if (revarg_opt & REVARG_COMMITTISH)
|
|
get_sha1_flags = GET_SHA1_COMMITTISH;
|
|
|
|
if (get_sha1_with_context(arg, get_sha1_flags, sha1, &oc))
|
|
return revs->ignore_missing ? 0 : -1;
|
|
if (!cant_be_filename)
|
|
verify_non_filename(revs->prefix, arg);
|
|
object = get_reference(revs, arg, sha1, flags ^ local_flags);
|
|
add_rev_cmdline(revs, object, arg_, REV_CMD_REV, flags ^ local_flags);
|
|
add_pending_object_with_mode(revs, object, arg, oc.mode);
|
|
return 0;
|
|
}
|
|
|
|
struct cmdline_pathspec {
|
|
int alloc;
|
|
int nr;
|
|
const char **path;
|
|
};
|
|
|
|
static void append_prune_data(struct cmdline_pathspec *prune, const char **av)
|
|
{
|
|
while (*av) {
|
|
ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
|
|
prune->path[prune->nr++] = *(av++);
|
|
}
|
|
}
|
|
|
|
static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb,
|
|
struct cmdline_pathspec *prune)
|
|
{
|
|
while (strbuf_getline(sb, stdin) != EOF) {
|
|
ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc);
|
|
prune->path[prune->nr++] = xstrdup(sb->buf);
|
|
}
|
|
}
|
|
|
|
static void read_revisions_from_stdin(struct rev_info *revs,
|
|
struct cmdline_pathspec *prune)
|
|
{
|
|
struct strbuf sb;
|
|
int seen_dashdash = 0;
|
|
int save_warning;
|
|
|
|
save_warning = warn_on_object_refname_ambiguity;
|
|
warn_on_object_refname_ambiguity = 0;
|
|
|
|
strbuf_init(&sb, 1000);
|
|
while (strbuf_getline(&sb, stdin) != EOF) {
|
|
int len = sb.len;
|
|
if (!len)
|
|
break;
|
|
if (sb.buf[0] == '-') {
|
|
if (len == 2 && sb.buf[1] == '-') {
|
|
seen_dashdash = 1;
|
|
break;
|
|
}
|
|
die("options not supported in --stdin mode");
|
|
}
|
|
if (handle_revision_arg(sb.buf, revs, 0,
|
|
REVARG_CANNOT_BE_FILENAME))
|
|
die("bad revision '%s'", sb.buf);
|
|
}
|
|
if (seen_dashdash)
|
|
read_pathspec_from_stdin(revs, &sb, prune);
|
|
|
|
strbuf_release(&sb);
|
|
warn_on_object_refname_ambiguity = save_warning;
|
|
}
|
|
|
|
static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what)
|
|
{
|
|
append_grep_pattern(&revs->grep_filter, ptn, "command line", 0, what);
|
|
}
|
|
|
|
static void add_header_grep(struct rev_info *revs, enum grep_header_field field, const char *pattern)
|
|
{
|
|
append_header_grep_pattern(&revs->grep_filter, field, pattern);
|
|
}
|
|
|
|
static void add_message_grep(struct rev_info *revs, const char *pattern)
|
|
{
|
|
add_grep(revs, pattern, GREP_PATTERN_BODY);
|
|
}
|
|
|
|
static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
|
|
int *unkc, const char **unkv)
|
|
{
|
|
const char *arg = argv[0];
|
|
const char *optarg;
|
|
int argcount;
|
|
|
|
/* pseudo revision arguments */
|
|
if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
|
|
!strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
|
|
!strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
|
|
!strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") ||
|
|
!strcmp(arg, "--bisect") || starts_with(arg, "--glob=") ||
|
|
!strcmp(arg, "--indexed-objects") ||
|
|
starts_with(arg, "--exclude=") ||
|
|
starts_with(arg, "--branches=") || starts_with(arg, "--tags=") ||
|
|
starts_with(arg, "--remotes=") || starts_with(arg, "--no-walk="))
|
|
{
|
|
unkv[(*unkc)++] = arg;
|
|
return 1;
|
|
}
|
|
|
|
if ((argcount = parse_long_opt("max-count", argv, &optarg))) {
|
|
revs->max_count = atoi(optarg);
|
|
revs->no_walk = 0;
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("skip", argv, &optarg))) {
|
|
revs->skip_count = atoi(optarg);
|
|
return argcount;
|
|
} else if ((*arg == '-') && isdigit(arg[1])) {
|
|
/* accept -<digit>, like traditional "head" */
|
|
if (strtol_i(arg + 1, 10, &revs->max_count) < 0 ||
|
|
revs->max_count < 0)
|
|
die("'%s': not a non-negative integer", arg + 1);
|
|
revs->no_walk = 0;
|
|
} else if (!strcmp(arg, "-n")) {
|
|
if (argc <= 1)
|
|
return error("-n requires an argument");
|
|
revs->max_count = atoi(argv[1]);
|
|
revs->no_walk = 0;
|
|
return 2;
|
|
} else if (starts_with(arg, "-n")) {
|
|
revs->max_count = atoi(arg + 2);
|
|
revs->no_walk = 0;
|
|
} else if ((argcount = parse_long_opt("max-age", argv, &optarg))) {
|
|
revs->max_age = atoi(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("since", argv, &optarg))) {
|
|
revs->max_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("after", argv, &optarg))) {
|
|
revs->max_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("min-age", argv, &optarg))) {
|
|
revs->min_age = atoi(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("before", argv, &optarg))) {
|
|
revs->min_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("until", argv, &optarg))) {
|
|
revs->min_age = approxidate(optarg);
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--first-parent")) {
|
|
revs->first_parent_only = 1;
|
|
} else if (!strcmp(arg, "--ancestry-path")) {
|
|
revs->ancestry_path = 1;
|
|
revs->simplify_history = 0;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "-g") || !strcmp(arg, "--walk-reflogs")) {
|
|
init_reflog_walk(&revs->reflog_info);
|
|
} else if (!strcmp(arg, "--default")) {
|
|
if (argc <= 1)
|
|
return error("bad --default argument");
|
|
revs->def = argv[1];
|
|
return 2;
|
|
} else if (!strcmp(arg, "--merge")) {
|
|
revs->show_merge = 1;
|
|
} else if (!strcmp(arg, "--topo-order")) {
|
|
revs->sort_order = REV_SORT_IN_GRAPH_ORDER;
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--simplify-merges")) {
|
|
revs->simplify_merges = 1;
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
revs->simplify_history = 0;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--simplify-by-decoration")) {
|
|
revs->simplify_merges = 1;
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
revs->simplify_history = 0;
|
|
revs->simplify_by_decoration = 1;
|
|
revs->limited = 1;
|
|
revs->prune = 1;
|
|
load_ref_decorations(DECORATE_SHORT_REFS);
|
|
} else if (!strcmp(arg, "--date-order")) {
|
|
revs->sort_order = REV_SORT_BY_COMMIT_DATE;
|
|
revs->topo_order = 1;
|
|
} else if (!strcmp(arg, "--author-date-order")) {
|
|
revs->sort_order = REV_SORT_BY_AUTHOR_DATE;
|
|
revs->topo_order = 1;
|
|
} else if (starts_with(arg, "--early-output")) {
|
|
int count = 100;
|
|
switch (arg[14]) {
|
|
case '=':
|
|
count = atoi(arg+15);
|
|
/* Fallthrough */
|
|
case 0:
|
|
revs->topo_order = 1;
|
|
revs->early_output = count;
|
|
}
|
|
} else if (!strcmp(arg, "--parents")) {
|
|
revs->rewrite_parents = 1;
|
|
revs->print_parents = 1;
|
|
} else if (!strcmp(arg, "--dense")) {
|
|
revs->dense = 1;
|
|
} else if (!strcmp(arg, "--sparse")) {
|
|
revs->dense = 0;
|
|
} else if (!strcmp(arg, "--show-all")) {
|
|
revs->show_all = 1;
|
|
} else if (!strcmp(arg, "--remove-empty")) {
|
|
revs->remove_empty_trees = 1;
|
|
} else if (!strcmp(arg, "--merges")) {
|
|
revs->min_parents = 2;
|
|
} else if (!strcmp(arg, "--no-merges")) {
|
|
revs->max_parents = 1;
|
|
} else if (starts_with(arg, "--min-parents=")) {
|
|
revs->min_parents = atoi(arg+14);
|
|
} else if (starts_with(arg, "--no-min-parents")) {
|
|
revs->min_parents = 0;
|
|
} else if (starts_with(arg, "--max-parents=")) {
|
|
revs->max_parents = atoi(arg+14);
|
|
} else if (starts_with(arg, "--no-max-parents")) {
|
|
revs->max_parents = -1;
|
|
} else if (!strcmp(arg, "--boundary")) {
|
|
revs->boundary = 1;
|
|
} else if (!strcmp(arg, "--left-right")) {
|
|
revs->left_right = 1;
|
|
} else if (!strcmp(arg, "--left-only")) {
|
|
if (revs->right_only)
|
|
die("--left-only is incompatible with --right-only"
|
|
" or --cherry");
|
|
revs->left_only = 1;
|
|
} else if (!strcmp(arg, "--right-only")) {
|
|
if (revs->left_only)
|
|
die("--right-only is incompatible with --left-only");
|
|
revs->right_only = 1;
|
|
} else if (!strcmp(arg, "--cherry")) {
|
|
if (revs->left_only)
|
|
die("--cherry is incompatible with --left-only");
|
|
revs->cherry_mark = 1;
|
|
revs->right_only = 1;
|
|
revs->max_parents = 1;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--count")) {
|
|
revs->count = 1;
|
|
} else if (!strcmp(arg, "--cherry-mark")) {
|
|
if (revs->cherry_pick)
|
|
die("--cherry-mark is incompatible with --cherry-pick");
|
|
revs->cherry_mark = 1;
|
|
revs->limited = 1; /* needs limit_list() */
|
|
} else if (!strcmp(arg, "--cherry-pick")) {
|
|
if (revs->cherry_mark)
|
|
die("--cherry-pick is incompatible with --cherry-mark");
|
|
revs->cherry_pick = 1;
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--objects")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
} else if (!strcmp(arg, "--objects-edge")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->edge_hint = 1;
|
|
} else if (!strcmp(arg, "--objects-edge-aggressive")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->edge_hint = 1;
|
|
revs->edge_hint_aggressive = 1;
|
|
} else if (!strcmp(arg, "--verify-objects")) {
|
|
revs->tag_objects = 1;
|
|
revs->tree_objects = 1;
|
|
revs->blob_objects = 1;
|
|
revs->verify_objects = 1;
|
|
} else if (!strcmp(arg, "--unpacked")) {
|
|
revs->unpacked = 1;
|
|
} else if (starts_with(arg, "--unpacked=")) {
|
|
die("--unpacked=<packfile> no longer supported.");
|
|
} else if (!strcmp(arg, "-r")) {
|
|
revs->diff = 1;
|
|
DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
|
|
} else if (!strcmp(arg, "-t")) {
|
|
revs->diff = 1;
|
|
DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
|
|
DIFF_OPT_SET(&revs->diffopt, TREE_IN_RECURSIVE);
|
|
} else if (!strcmp(arg, "-m")) {
|
|
revs->ignore_merges = 0;
|
|
} else if (!strcmp(arg, "-c")) {
|
|
revs->diff = 1;
|
|
revs->dense_combined_merges = 0;
|
|
revs->combine_merges = 1;
|
|
} else if (!strcmp(arg, "--cc")) {
|
|
revs->diff = 1;
|
|
revs->dense_combined_merges = 1;
|
|
revs->combine_merges = 1;
|
|
} else if (!strcmp(arg, "-v")) {
|
|
revs->verbose_header = 1;
|
|
} else if (!strcmp(arg, "--pretty")) {
|
|
revs->verbose_header = 1;
|
|
revs->pretty_given = 1;
|
|
get_commit_format(NULL, revs);
|
|
} else if (starts_with(arg, "--pretty=") || starts_with(arg, "--format=")) {
|
|
/*
|
|
* Detached form ("--pretty X" as opposed to "--pretty=X")
|
|
* not allowed, since the argument is optional.
|
|
*/
|
|
revs->verbose_header = 1;
|
|
revs->pretty_given = 1;
|
|
get_commit_format(arg+9, revs);
|
|
} else if (!strcmp(arg, "--expand-tabs")) {
|
|
revs->expand_tabs_in_log = 8;
|
|
} else if (!strcmp(arg, "--no-expand-tabs")) {
|
|
revs->expand_tabs_in_log = 0;
|
|
} else if (skip_prefix(arg, "--expand-tabs=", &arg)) {
|
|
int val;
|
|
if (strtol_i(arg, 10, &val) < 0 || val < 0)
|
|
die("'%s': not a non-negative integer", arg);
|
|
revs->expand_tabs_in_log = val;
|
|
} else if (!strcmp(arg, "--show-notes") || !strcmp(arg, "--notes")) {
|
|
revs->show_notes = 1;
|
|
revs->show_notes_given = 1;
|
|
revs->notes_opt.use_default_notes = 1;
|
|
} else if (!strcmp(arg, "--show-signature")) {
|
|
revs->show_signature = 1;
|
|
} else if (!strcmp(arg, "--no-show-signature")) {
|
|
revs->show_signature = 0;
|
|
} else if (!strcmp(arg, "--show-linear-break") ||
|
|
starts_with(arg, "--show-linear-break=")) {
|
|
if (starts_with(arg, "--show-linear-break="))
|
|
revs->break_bar = xstrdup(arg + 20);
|
|
else
|
|
revs->break_bar = " ..........";
|
|
revs->track_linear = 1;
|
|
revs->track_first_time = 1;
|
|
} else if (starts_with(arg, "--show-notes=") ||
|
|
starts_with(arg, "--notes=")) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
revs->show_notes = 1;
|
|
revs->show_notes_given = 1;
|
|
if (starts_with(arg, "--show-notes")) {
|
|
if (revs->notes_opt.use_default_notes < 0)
|
|
revs->notes_opt.use_default_notes = 1;
|
|
strbuf_addstr(&buf, arg+13);
|
|
}
|
|
else
|
|
strbuf_addstr(&buf, arg+8);
|
|
expand_notes_ref(&buf);
|
|
string_list_append(&revs->notes_opt.extra_notes_refs,
|
|
strbuf_detach(&buf, NULL));
|
|
} else if (!strcmp(arg, "--no-notes")) {
|
|
revs->show_notes = 0;
|
|
revs->show_notes_given = 1;
|
|
revs->notes_opt.use_default_notes = -1;
|
|
/* we have been strdup'ing ourselves, so trick
|
|
* string_list into free()ing strings */
|
|
revs->notes_opt.extra_notes_refs.strdup_strings = 1;
|
|
string_list_clear(&revs->notes_opt.extra_notes_refs, 0);
|
|
revs->notes_opt.extra_notes_refs.strdup_strings = 0;
|
|
} else if (!strcmp(arg, "--standard-notes")) {
|
|
revs->show_notes_given = 1;
|
|
revs->notes_opt.use_default_notes = 1;
|
|
} else if (!strcmp(arg, "--no-standard-notes")) {
|
|
revs->notes_opt.use_default_notes = 0;
|
|
} else if (!strcmp(arg, "--oneline")) {
|
|
revs->verbose_header = 1;
|
|
get_commit_format("oneline", revs);
|
|
revs->pretty_given = 1;
|
|
revs->abbrev_commit = 1;
|
|
} else if (!strcmp(arg, "--graph")) {
|
|
revs->topo_order = 1;
|
|
revs->rewrite_parents = 1;
|
|
revs->graph = graph_init(revs);
|
|
} else if (!strcmp(arg, "--root")) {
|
|
revs->show_root_diff = 1;
|
|
} else if (!strcmp(arg, "--no-commit-id")) {
|
|
revs->no_commit_id = 1;
|
|
} else if (!strcmp(arg, "--always")) {
|
|
revs->always_show_header = 1;
|
|
} else if (!strcmp(arg, "--no-abbrev")) {
|
|
revs->abbrev = 0;
|
|
} else if (!strcmp(arg, "--abbrev")) {
|
|
revs->abbrev = DEFAULT_ABBREV;
|
|
} else if (starts_with(arg, "--abbrev=")) {
|
|
revs->abbrev = strtoul(arg + 9, NULL, 10);
|
|
if (revs->abbrev < MINIMUM_ABBREV)
|
|
revs->abbrev = MINIMUM_ABBREV;
|
|
else if (revs->abbrev > 40)
|
|
revs->abbrev = 40;
|
|
} else if (!strcmp(arg, "--abbrev-commit")) {
|
|
revs->abbrev_commit = 1;
|
|
revs->abbrev_commit_given = 1;
|
|
} else if (!strcmp(arg, "--no-abbrev-commit")) {
|
|
revs->abbrev_commit = 0;
|
|
} else if (!strcmp(arg, "--full-diff")) {
|
|
revs->diff = 1;
|
|
revs->full_diff = 1;
|
|
} else if (!strcmp(arg, "--full-history")) {
|
|
revs->simplify_history = 0;
|
|
} else if (!strcmp(arg, "--relative-date")) {
|
|
revs->date_mode.type = DATE_RELATIVE;
|
|
revs->date_mode_explicit = 1;
|
|
} else if ((argcount = parse_long_opt("date", argv, &optarg))) {
|
|
parse_date_format(optarg, &revs->date_mode);
|
|
revs->date_mode_explicit = 1;
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--log-size")) {
|
|
revs->show_log_size = 1;
|
|
}
|
|
/*
|
|
* Grepping the commit log
|
|
*/
|
|
else if ((argcount = parse_long_opt("author", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_AUTHOR, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("committer", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_COMMITTER, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("grep-reflog", argv, &optarg))) {
|
|
add_header_grep(revs, GREP_HEADER_REFLOG, optarg);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("grep", argv, &optarg))) {
|
|
add_message_grep(revs, optarg);
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--grep-debug")) {
|
|
revs->grep_filter.debug = 1;
|
|
} else if (!strcmp(arg, "--basic-regexp")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_BRE;
|
|
} else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
|
|
} else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
|
|
revs->grep_filter.regflags |= REG_ICASE;
|
|
DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
|
|
} else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_FIXED;
|
|
} else if (!strcmp(arg, "--perl-regexp")) {
|
|
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_PCRE;
|
|
} else if (!strcmp(arg, "--all-match")) {
|
|
revs->grep_filter.all_match = 1;
|
|
} else if (!strcmp(arg, "--invert-grep")) {
|
|
revs->invert_grep = 1;
|
|
} else if ((argcount = parse_long_opt("encoding", argv, &optarg))) {
|
|
if (strcmp(optarg, "none"))
|
|
git_log_output_encoding = xstrdup(optarg);
|
|
else
|
|
git_log_output_encoding = "";
|
|
return argcount;
|
|
} else if (!strcmp(arg, "--reverse")) {
|
|
revs->reverse ^= 1;
|
|
} else if (!strcmp(arg, "--children")) {
|
|
revs->children.name = "children";
|
|
revs->limited = 1;
|
|
} else if (!strcmp(arg, "--ignore-missing")) {
|
|
revs->ignore_missing = 1;
|
|
} else {
|
|
int opts = diff_opt_parse(&revs->diffopt, argv, argc, revs->prefix);
|
|
if (!opts)
|
|
unkv[(*unkc)++] = arg;
|
|
return opts;
|
|
}
|
|
if (revs->graph && revs->track_linear)
|
|
die("--show-linear-break and --graph are incompatible");
|
|
|
|
return 1;
|
|
}
|
|
|
|
void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
|
|
const struct option *options,
|
|
const char * const usagestr[])
|
|
{
|
|
int n = handle_revision_opt(revs, ctx->argc, ctx->argv,
|
|
&ctx->cpidx, ctx->out);
|
|
if (n <= 0) {
|
|
error("unknown option `%s'", ctx->argv[0]);
|
|
usage_with_options(usagestr, options);
|
|
}
|
|
ctx->argv += n;
|
|
ctx->argc -= n;
|
|
}
|
|
|
|
static int for_each_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data, const char *term) {
|
|
struct strbuf bisect_refs = STRBUF_INIT;
|
|
int status;
|
|
strbuf_addf(&bisect_refs, "refs/bisect/%s", term);
|
|
status = for_each_ref_in_submodule(submodule, bisect_refs.buf, fn, cb_data);
|
|
strbuf_release(&bisect_refs);
|
|
return status;
|
|
}
|
|
|
|
static int for_each_bad_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return for_each_bisect_ref(submodule, fn, cb_data, term_bad);
|
|
}
|
|
|
|
static int for_each_good_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return for_each_bisect_ref(submodule, fn, cb_data, term_good);
|
|
}
|
|
|
|
static int handle_revision_pseudo_opt(const char *submodule,
|
|
struct rev_info *revs,
|
|
int argc, const char **argv, int *flags)
|
|
{
|
|
const char *arg = argv[0];
|
|
const char *optarg;
|
|
int argcount;
|
|
|
|
/*
|
|
* NOTE!
|
|
*
|
|
* Commands like "git shortlog" will not accept the options below
|
|
* unless parse_revision_opt queues them (as opposed to erroring
|
|
* out).
|
|
*
|
|
* When implementing your new pseudo-option, remember to
|
|
* register it in the list at the top of handle_revision_opt.
|
|
*/
|
|
if (!strcmp(arg, "--all")) {
|
|
handle_refs(submodule, revs, *flags, for_each_ref_submodule);
|
|
handle_refs(submodule, revs, *flags, head_ref_submodule);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--branches")) {
|
|
handle_refs(submodule, revs, *flags, for_each_branch_ref_submodule);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--bisect")) {
|
|
read_bisect_terms(&term_bad, &term_good);
|
|
handle_refs(submodule, revs, *flags, for_each_bad_bisect_ref);
|
|
handle_refs(submodule, revs, *flags ^ (UNINTERESTING | BOTTOM), for_each_good_bisect_ref);
|
|
revs->bisect = 1;
|
|
} else if (!strcmp(arg, "--tags")) {
|
|
handle_refs(submodule, revs, *flags, for_each_tag_ref_submodule);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--remotes")) {
|
|
handle_refs(submodule, revs, *flags, for_each_remote_ref_submodule);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if ((argcount = parse_long_opt("glob", argv, &optarg))) {
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref(handle_one_ref, optarg, &cb);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
return argcount;
|
|
} else if ((argcount = parse_long_opt("exclude", argv, &optarg))) {
|
|
add_ref_exclusion(&revs->ref_excludes, optarg);
|
|
return argcount;
|
|
} else if (starts_with(arg, "--branches=")) {
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, arg + 11, "refs/heads/", &cb);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (starts_with(arg, "--tags=")) {
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, arg + 7, "refs/tags/", &cb);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (starts_with(arg, "--remotes=")) {
|
|
struct all_refs_cb cb;
|
|
init_all_refs_cb(&cb, revs, *flags);
|
|
for_each_glob_ref_in(handle_one_ref, arg + 10, "refs/remotes/", &cb);
|
|
clear_ref_exclusion(&revs->ref_excludes);
|
|
} else if (!strcmp(arg, "--reflog")) {
|
|
add_reflogs_to_pending(revs, *flags);
|
|
} else if (!strcmp(arg, "--indexed-objects")) {
|
|
add_index_objects_to_pending(revs, *flags);
|
|
} else if (!strcmp(arg, "--not")) {
|
|
*flags ^= UNINTERESTING | BOTTOM;
|
|
} else if (!strcmp(arg, "--no-walk")) {
|
|
revs->no_walk = REVISION_WALK_NO_WALK_SORTED;
|
|
} else if (starts_with(arg, "--no-walk=")) {
|
|
/*
|
|
* Detached form ("--no-walk X" as opposed to "--no-walk=X")
|
|
* not allowed, since the argument is optional.
|
|
*/
|
|
if (!strcmp(arg + 10, "sorted"))
|
|
revs->no_walk = REVISION_WALK_NO_WALK_SORTED;
|
|
else if (!strcmp(arg + 10, "unsorted"))
|
|
revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED;
|
|
else
|
|
return error("invalid argument to --no-walk");
|
|
} else if (!strcmp(arg, "--do-walk")) {
|
|
revs->no_walk = 0;
|
|
} else {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void NORETURN diagnose_missing_default(const char *def)
|
|
{
|
|
unsigned char sha1[20];
|
|
int flags;
|
|
const char *refname;
|
|
|
|
refname = resolve_ref_unsafe(def, 0, sha1, &flags);
|
|
if (!refname || !(flags & REF_ISSYMREF) || (flags & REF_ISBROKEN))
|
|
die(_("your current branch appears to be broken"));
|
|
|
|
skip_prefix(refname, "refs/heads/", &refname);
|
|
die(_("your current branch '%s' does not have any commits yet"),
|
|
refname);
|
|
}
|
|
|
|
/*
|
|
* Parse revision information, filling in the "rev_info" structure,
|
|
* and removing the used arguments from the argument list.
|
|
*
|
|
* Returns the number of arguments left that weren't recognized
|
|
* (which are also moved to the head of the argument list)
|
|
*/
|
|
int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
|
|
{
|
|
int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0, revarg_opt;
|
|
struct cmdline_pathspec prune_data;
|
|
const char *submodule = NULL;
|
|
|
|
memset(&prune_data, 0, sizeof(prune_data));
|
|
if (opt)
|
|
submodule = opt->submodule;
|
|
|
|
/* First, search for "--" */
|
|
if (opt && opt->assume_dashdash) {
|
|
seen_dashdash = 1;
|
|
} else {
|
|
seen_dashdash = 0;
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (strcmp(arg, "--"))
|
|
continue;
|
|
argv[i] = NULL;
|
|
argc = i;
|
|
if (argv[i + 1])
|
|
append_prune_data(&prune_data, argv + i + 1);
|
|
seen_dashdash = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Second, deal with arguments and options */
|
|
flags = 0;
|
|
revarg_opt = opt ? opt->revarg_opt : 0;
|
|
if (seen_dashdash)
|
|
revarg_opt |= REVARG_CANNOT_BE_FILENAME;
|
|
read_from_stdin = 0;
|
|
for (left = i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (*arg == '-') {
|
|
int opts;
|
|
|
|
opts = handle_revision_pseudo_opt(submodule,
|
|
revs, argc - i, argv + i,
|
|
&flags);
|
|
if (opts > 0) {
|
|
i += opts - 1;
|
|
continue;
|
|
}
|
|
|
|
if (!strcmp(arg, "--stdin")) {
|
|
if (revs->disable_stdin) {
|
|
argv[left++] = arg;
|
|
continue;
|
|
}
|
|
if (read_from_stdin++)
|
|
die("--stdin given twice?");
|
|
read_revisions_from_stdin(revs, &prune_data);
|
|
continue;
|
|
}
|
|
|
|
opts = handle_revision_opt(revs, argc - i, argv + i, &left, argv);
|
|
if (opts > 0) {
|
|
i += opts - 1;
|
|
continue;
|
|
}
|
|
if (opts < 0)
|
|
exit(128);
|
|
continue;
|
|
}
|
|
|
|
|
|
if (handle_revision_arg(arg, revs, flags, revarg_opt)) {
|
|
int j;
|
|
if (seen_dashdash || *arg == '^')
|
|
die("bad revision '%s'", arg);
|
|
|
|
/* If we didn't have a "--":
|
|
* (1) all filenames must exist;
|
|
* (2) all rev-args must not be interpretable
|
|
* as a valid filename.
|
|
* but the latter we have checked in the main loop.
|
|
*/
|
|
for (j = i; j < argc; j++)
|
|
verify_filename(revs->prefix, argv[j], j == i);
|
|
|
|
append_prune_data(&prune_data, argv + i);
|
|
break;
|
|
}
|
|
else
|
|
got_rev_arg = 1;
|
|
}
|
|
|
|
if (prune_data.nr) {
|
|
/*
|
|
* If we need to introduce the magic "a lone ':' means no
|
|
* pathspec whatsoever", here is the place to do so.
|
|
*
|
|
* if (prune_data.nr == 1 && !strcmp(prune_data[0], ":")) {
|
|
* prune_data.nr = 0;
|
|
* prune_data.alloc = 0;
|
|
* free(prune_data.path);
|
|
* prune_data.path = NULL;
|
|
* } else {
|
|
* terminate prune_data.alloc with NULL and
|
|
* call init_pathspec() to set revs->prune_data here.
|
|
* }
|
|
*/
|
|
ALLOC_GROW(prune_data.path, prune_data.nr + 1, prune_data.alloc);
|
|
prune_data.path[prune_data.nr++] = NULL;
|
|
parse_pathspec(&revs->prune_data, 0, 0,
|
|
revs->prefix, prune_data.path);
|
|
}
|
|
|
|
if (revs->def == NULL)
|
|
revs->def = opt ? opt->def : NULL;
|
|
if (opt && opt->tweak)
|
|
opt->tweak(revs, opt);
|
|
if (revs->show_merge)
|
|
prepare_show_merge(revs);
|
|
if (revs->def && !revs->pending.nr && !got_rev_arg) {
|
|
unsigned char sha1[20];
|
|
struct object *object;
|
|
struct object_context oc;
|
|
if (get_sha1_with_context(revs->def, 0, sha1, &oc))
|
|
diagnose_missing_default(revs->def);
|
|
object = get_reference(revs, revs->def, sha1, 0);
|
|
add_pending_object_with_mode(revs, object, revs->def, oc.mode);
|
|
}
|
|
|
|
/* Did the user ask for any diff output? Run the diff! */
|
|
if (revs->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT)
|
|
revs->diff = 1;
|
|
|
|
/* Pickaxe, diff-filter and rename following need diffs */
|
|
if (revs->diffopt.pickaxe ||
|
|
revs->diffopt.filter ||
|
|
DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
|
|
revs->diff = 1;
|
|
|
|
if (revs->topo_order)
|
|
revs->limited = 1;
|
|
|
|
if (revs->prune_data.nr) {
|
|
copy_pathspec(&revs->pruning.pathspec, &revs->prune_data);
|
|
/* Can't prune commits with rename following: the paths change.. */
|
|
if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
|
|
revs->prune = 1;
|
|
if (!revs->full_diff)
|
|
copy_pathspec(&revs->diffopt.pathspec,
|
|
&revs->prune_data);
|
|
}
|
|
if (revs->combine_merges)
|
|
revs->ignore_merges = 0;
|
|
revs->diffopt.abbrev = revs->abbrev;
|
|
|
|
if (revs->line_level_traverse) {
|
|
revs->limited = 1;
|
|
revs->topo_order = 1;
|
|
}
|
|
|
|
diff_setup_done(&revs->diffopt);
|
|
|
|
grep_commit_pattern_type(GREP_PATTERN_TYPE_UNSPECIFIED,
|
|
&revs->grep_filter);
|
|
compile_grep_patterns(&revs->grep_filter);
|
|
|
|
if (revs->reverse && revs->reflog_info)
|
|
die("cannot combine --reverse with --walk-reflogs");
|
|
if (revs->rewrite_parents && revs->children.name)
|
|
die("cannot combine --parents and --children");
|
|
|
|
/*
|
|
* Limitations on the graph functionality
|
|
*/
|
|
if (revs->reverse && revs->graph)
|
|
die("cannot combine --reverse with --graph");
|
|
|
|
if (revs->reflog_info && revs->graph)
|
|
die("cannot combine --walk-reflogs with --graph");
|
|
if (revs->no_walk && revs->graph)
|
|
die("cannot combine --no-walk with --graph");
|
|
if (!revs->reflog_info && revs->grep_filter.use_reflog_filter)
|
|
die("cannot use --grep-reflog without --walk-reflogs");
|
|
|
|
if (revs->first_parent_only && revs->bisect)
|
|
die(_("--first-parent is incompatible with --bisect"));
|
|
|
|
if (revs->expand_tabs_in_log < 0)
|
|
revs->expand_tabs_in_log = revs->expand_tabs_in_log_default;
|
|
|
|
return left;
|
|
}
|
|
|
|
static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child)
|
|
{
|
|
struct commit_list *l = xcalloc(1, sizeof(*l));
|
|
|
|
l->item = child;
|
|
l->next = add_decoration(&revs->children, &parent->object, l);
|
|
}
|
|
|
|
static int remove_duplicate_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object);
|
|
struct commit_list **pp, *p;
|
|
int surviving_parents;
|
|
|
|
/* Examine existing parents while marking ones we have seen... */
|
|
pp = &commit->parents;
|
|
surviving_parents = 0;
|
|
while ((p = *pp) != NULL) {
|
|
struct commit *parent = p->item;
|
|
if (parent->object.flags & TMP_MARK) {
|
|
*pp = p->next;
|
|
if (ts)
|
|
compact_treesame(revs, commit, surviving_parents);
|
|
continue;
|
|
}
|
|
parent->object.flags |= TMP_MARK;
|
|
surviving_parents++;
|
|
pp = &p->next;
|
|
}
|
|
/* clear the temporary mark */
|
|
for (p = commit->parents; p; p = p->next) {
|
|
p->item->object.flags &= ~TMP_MARK;
|
|
}
|
|
/* no update_treesame() - removing duplicates can't affect TREESAME */
|
|
return surviving_parents;
|
|
}
|
|
|
|
struct merge_simplify_state {
|
|
struct commit *simplified;
|
|
};
|
|
|
|
static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct merge_simplify_state *st;
|
|
|
|
st = lookup_decoration(&revs->merge_simplification, &commit->object);
|
|
if (!st) {
|
|
st = xcalloc(1, sizeof(*st));
|
|
add_decoration(&revs->merge_simplification, &commit->object, st);
|
|
}
|
|
return st;
|
|
}
|
|
|
|
static int mark_redundant_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list *h = reduce_heads(commit->parents);
|
|
int i = 0, marked = 0;
|
|
struct commit_list *po, *pn;
|
|
|
|
/* Want these for sanity-checking only */
|
|
int orig_cnt = commit_list_count(commit->parents);
|
|
int cnt = commit_list_count(h);
|
|
|
|
/*
|
|
* Not ready to remove items yet, just mark them for now, based
|
|
* on the output of reduce_heads(). reduce_heads outputs the reduced
|
|
* set in its original order, so this isn't too hard.
|
|
*/
|
|
po = commit->parents;
|
|
pn = h;
|
|
while (po) {
|
|
if (pn && po->item == pn->item) {
|
|
pn = pn->next;
|
|
i++;
|
|
} else {
|
|
po->item->object.flags |= TMP_MARK;
|
|
marked++;
|
|
}
|
|
po=po->next;
|
|
}
|
|
|
|
if (i != cnt || cnt+marked != orig_cnt)
|
|
die("mark_redundant_parents %d %d %d %d", orig_cnt, cnt, i, marked);
|
|
|
|
free_commit_list(h);
|
|
|
|
return marked;
|
|
}
|
|
|
|
static int mark_treesame_root_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list *p;
|
|
int marked = 0;
|
|
|
|
for (p = commit->parents; p; p = p->next) {
|
|
struct commit *parent = p->item;
|
|
if (!parent->parents && (parent->object.flags & TREESAME)) {
|
|
parent->object.flags |= TMP_MARK;
|
|
marked++;
|
|
}
|
|
}
|
|
|
|
return marked;
|
|
}
|
|
|
|
/*
|
|
* Awkward naming - this means one parent we are TREESAME to.
|
|
* cf mark_treesame_root_parents: root parents that are TREESAME (to an
|
|
* empty tree). Better name suggestions?
|
|
*/
|
|
static int leave_one_treesame_to_parent(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object);
|
|
struct commit *unmarked = NULL, *marked = NULL;
|
|
struct commit_list *p;
|
|
unsigned n;
|
|
|
|
for (p = commit->parents, n = 0; p; p = p->next, n++) {
|
|
if (ts->treesame[n]) {
|
|
if (p->item->object.flags & TMP_MARK) {
|
|
if (!marked)
|
|
marked = p->item;
|
|
} else {
|
|
if (!unmarked) {
|
|
unmarked = p->item;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are TREESAME to a marked-for-deletion parent, but not to any
|
|
* unmarked parents, unmark the first TREESAME parent. This is the
|
|
* parent that the default simplify_history==1 scan would have followed,
|
|
* and it doesn't make sense to omit that path when asking for a
|
|
* simplified full history. Retaining it improves the chances of
|
|
* understanding odd missed merges that took an old version of a file.
|
|
*
|
|
* Example:
|
|
*
|
|
* I--------*X A modified the file, but mainline merge X used
|
|
* \ / "-s ours", so took the version from I. X is
|
|
* `-*A--' TREESAME to I and !TREESAME to A.
|
|
*
|
|
* Default log from X would produce "I". Without this check,
|
|
* --full-history --simplify-merges would produce "I-A-X", showing
|
|
* the merge commit X and that it changed A, but not making clear that
|
|
* it had just taken the I version. With this check, the topology above
|
|
* is retained.
|
|
*
|
|
* Note that it is possible that the simplification chooses a different
|
|
* TREESAME parent from the default, in which case this test doesn't
|
|
* activate, and we _do_ drop the default parent. Example:
|
|
*
|
|
* I------X A modified the file, but it was reverted in B,
|
|
* \ / meaning mainline merge X is TREESAME to both
|
|
* *A-*B parents.
|
|
*
|
|
* Default log would produce "I" by following the first parent;
|
|
* --full-history --simplify-merges will produce "I-A-B". But this is a
|
|
* reasonable result - it presents a logical full history leading from
|
|
* I to X, and X is not an important merge.
|
|
*/
|
|
if (!unmarked && marked) {
|
|
marked->object.flags &= ~TMP_MARK;
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int remove_marked_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp, *p;
|
|
int nth_parent, removed = 0;
|
|
|
|
pp = &commit->parents;
|
|
nth_parent = 0;
|
|
while ((p = *pp) != NULL) {
|
|
struct commit *parent = p->item;
|
|
if (parent->object.flags & TMP_MARK) {
|
|
parent->object.flags &= ~TMP_MARK;
|
|
*pp = p->next;
|
|
free(p);
|
|
removed++;
|
|
compact_treesame(revs, commit, nth_parent);
|
|
continue;
|
|
}
|
|
pp = &p->next;
|
|
nth_parent++;
|
|
}
|
|
|
|
/* Removing parents can only increase TREESAMEness */
|
|
if (removed && !(commit->object.flags & TREESAME))
|
|
update_treesame(revs, commit);
|
|
|
|
return nth_parent;
|
|
}
|
|
|
|
static struct commit_list **simplify_one(struct rev_info *revs, struct commit *commit, struct commit_list **tail)
|
|
{
|
|
struct commit_list *p;
|
|
struct commit *parent;
|
|
struct merge_simplify_state *st, *pst;
|
|
int cnt;
|
|
|
|
st = locate_simplify_state(revs, commit);
|
|
|
|
/*
|
|
* Have we handled this one?
|
|
*/
|
|
if (st->simplified)
|
|
return tail;
|
|
|
|
/*
|
|
* An UNINTERESTING commit simplifies to itself, so does a
|
|
* root commit. We do not rewrite parents of such commit
|
|
* anyway.
|
|
*/
|
|
if ((commit->object.flags & UNINTERESTING) || !commit->parents) {
|
|
st->simplified = commit;
|
|
return tail;
|
|
}
|
|
|
|
/*
|
|
* Do we know what commit all of our parents that matter
|
|
* should be rewritten to? Otherwise we are not ready to
|
|
* rewrite this one yet.
|
|
*/
|
|
for (cnt = 0, p = commit->parents; p; p = p->next) {
|
|
pst = locate_simplify_state(revs, p->item);
|
|
if (!pst->simplified) {
|
|
tail = &commit_list_insert(p->item, tail)->next;
|
|
cnt++;
|
|
}
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
if (cnt) {
|
|
tail = &commit_list_insert(commit, tail)->next;
|
|
return tail;
|
|
}
|
|
|
|
/*
|
|
* Rewrite our list of parents. Note that this cannot
|
|
* affect our TREESAME flags in any way - a commit is
|
|
* always TREESAME to its simplification.
|
|
*/
|
|
for (p = commit->parents; p; p = p->next) {
|
|
pst = locate_simplify_state(revs, p->item);
|
|
p->item = pst->simplified;
|
|
if (revs->first_parent_only)
|
|
break;
|
|
}
|
|
|
|
if (revs->first_parent_only)
|
|
cnt = 1;
|
|
else
|
|
cnt = remove_duplicate_parents(revs, commit);
|
|
|
|
/*
|
|
* It is possible that we are a merge and one side branch
|
|
* does not have any commit that touches the given paths;
|
|
* in such a case, the immediate parent from that branch
|
|
* will be rewritten to be the merge base.
|
|
*
|
|
* o----X X: the commit we are looking at;
|
|
* / / o: a commit that touches the paths;
|
|
* ---o----'
|
|
*
|
|
* Further, a merge of an independent branch that doesn't
|
|
* touch the path will reduce to a treesame root parent:
|
|
*
|
|
* ----o----X X: the commit we are looking at;
|
|
* / o: a commit that touches the paths;
|
|
* r r: a root commit not touching the paths
|
|
*
|
|
* Detect and simplify both cases.
|
|
*/
|
|
if (1 < cnt) {
|
|
int marked = mark_redundant_parents(revs, commit);
|
|
marked += mark_treesame_root_parents(revs, commit);
|
|
if (marked)
|
|
marked -= leave_one_treesame_to_parent(revs, commit);
|
|
if (marked)
|
|
cnt = remove_marked_parents(revs, commit);
|
|
}
|
|
|
|
/*
|
|
* A commit simplifies to itself if it is a root, if it is
|
|
* UNINTERESTING, if it touches the given paths, or if it is a
|
|
* merge and its parents don't simplify to one relevant commit
|
|
* (the first two cases are already handled at the beginning of
|
|
* this function).
|
|
*
|
|
* Otherwise, it simplifies to what its sole relevant parent
|
|
* simplifies to.
|
|
*/
|
|
if (!cnt ||
|
|
(commit->object.flags & UNINTERESTING) ||
|
|
!(commit->object.flags & TREESAME) ||
|
|
(parent = one_relevant_parent(revs, commit->parents)) == NULL)
|
|
st->simplified = commit;
|
|
else {
|
|
pst = locate_simplify_state(revs, parent);
|
|
st->simplified = pst->simplified;
|
|
}
|
|
return tail;
|
|
}
|
|
|
|
static void simplify_merges(struct rev_info *revs)
|
|
{
|
|
struct commit_list *list, *next;
|
|
struct commit_list *yet_to_do, **tail;
|
|
struct commit *commit;
|
|
|
|
if (!revs->prune)
|
|
return;
|
|
|
|
/* feed the list reversed */
|
|
yet_to_do = NULL;
|
|
for (list = revs->commits; list; list = next) {
|
|
commit = list->item;
|
|
next = list->next;
|
|
/*
|
|
* Do not free(list) here yet; the original list
|
|
* is used later in this function.
|
|
*/
|
|
commit_list_insert(commit, &yet_to_do);
|
|
}
|
|
while (yet_to_do) {
|
|
list = yet_to_do;
|
|
yet_to_do = NULL;
|
|
tail = &yet_to_do;
|
|
while (list) {
|
|
commit = pop_commit(&list);
|
|
tail = simplify_one(revs, commit, tail);
|
|
}
|
|
}
|
|
|
|
/* clean up the result, removing the simplified ones */
|
|
list = revs->commits;
|
|
revs->commits = NULL;
|
|
tail = &revs->commits;
|
|
while (list) {
|
|
struct merge_simplify_state *st;
|
|
|
|
commit = pop_commit(&list);
|
|
st = locate_simplify_state(revs, commit);
|
|
if (st->simplified == commit)
|
|
tail = &commit_list_insert(commit, tail)->next;
|
|
}
|
|
}
|
|
|
|
static void set_children(struct rev_info *revs)
|
|
{
|
|
struct commit_list *l;
|
|
for (l = revs->commits; l; l = l->next) {
|
|
struct commit *commit = l->item;
|
|
struct commit_list *p;
|
|
|
|
for (p = commit->parents; p; p = p->next)
|
|
add_child(revs, p->item, commit);
|
|
}
|
|
}
|
|
|
|
void reset_revision_walk(void)
|
|
{
|
|
clear_object_flags(SEEN | ADDED | SHOWN);
|
|
}
|
|
|
|
int prepare_revision_walk(struct rev_info *revs)
|
|
{
|
|
int i;
|
|
struct object_array old_pending;
|
|
struct commit_list **next = &revs->commits;
|
|
|
|
memcpy(&old_pending, &revs->pending, sizeof(old_pending));
|
|
revs->pending.nr = 0;
|
|
revs->pending.alloc = 0;
|
|
revs->pending.objects = NULL;
|
|
for (i = 0; i < old_pending.nr; i++) {
|
|
struct object_array_entry *e = old_pending.objects + i;
|
|
struct commit *commit = handle_commit(revs, e);
|
|
if (commit) {
|
|
if (!(commit->object.flags & SEEN)) {
|
|
commit->object.flags |= SEEN;
|
|
next = commit_list_append(commit, next);
|
|
}
|
|
}
|
|
}
|
|
if (!revs->leak_pending)
|
|
object_array_clear(&old_pending);
|
|
|
|
/* Signal whether we need per-parent treesame decoration */
|
|
if (revs->simplify_merges ||
|
|
(revs->limited && limiting_can_increase_treesame(revs)))
|
|
revs->treesame.name = "treesame";
|
|
|
|
if (revs->no_walk != REVISION_WALK_NO_WALK_UNSORTED)
|
|
commit_list_sort_by_date(&revs->commits);
|
|
if (revs->no_walk)
|
|
return 0;
|
|
if (revs->limited)
|
|
if (limit_list(revs) < 0)
|
|
return -1;
|
|
if (revs->topo_order)
|
|
sort_in_topological_order(&revs->commits, revs->sort_order);
|
|
if (revs->line_level_traverse)
|
|
line_log_filter(revs);
|
|
if (revs->simplify_merges)
|
|
simplify_merges(revs);
|
|
if (revs->children.name)
|
|
set_children(revs);
|
|
return 0;
|
|
}
|
|
|
|
static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
|
|
{
|
|
struct commit_list *cache = NULL;
|
|
|
|
for (;;) {
|
|
struct commit *p = *pp;
|
|
if (!revs->limited)
|
|
if (add_parents_to_list(revs, p, &revs->commits, &cache) < 0)
|
|
return rewrite_one_error;
|
|
if (p->object.flags & UNINTERESTING)
|
|
return rewrite_one_ok;
|
|
if (!(p->object.flags & TREESAME))
|
|
return rewrite_one_ok;
|
|
if (!p->parents)
|
|
return rewrite_one_noparents;
|
|
if ((p = one_relevant_parent(revs, p->parents)) == NULL)
|
|
return rewrite_one_ok;
|
|
*pp = p;
|
|
}
|
|
}
|
|
|
|
int rewrite_parents(struct rev_info *revs, struct commit *commit,
|
|
rewrite_parent_fn_t rewrite_parent)
|
|
{
|
|
struct commit_list **pp = &commit->parents;
|
|
while (*pp) {
|
|
struct commit_list *parent = *pp;
|
|
switch (rewrite_parent(revs, &parent->item)) {
|
|
case rewrite_one_ok:
|
|
break;
|
|
case rewrite_one_noparents:
|
|
*pp = parent->next;
|
|
continue;
|
|
case rewrite_one_error:
|
|
return -1;
|
|
}
|
|
pp = &parent->next;
|
|
}
|
|
remove_duplicate_parents(revs, commit);
|
|
return 0;
|
|
}
|
|
|
|
static int commit_rewrite_person(struct strbuf *buf, const char *what, struct string_list *mailmap)
|
|
{
|
|
char *person, *endp;
|
|
size_t len, namelen, maillen;
|
|
const char *name;
|
|
const char *mail;
|
|
struct ident_split ident;
|
|
|
|
person = strstr(buf->buf, what);
|
|
if (!person)
|
|
return 0;
|
|
|
|
person += strlen(what);
|
|
endp = strchr(person, '\n');
|
|
if (!endp)
|
|
return 0;
|
|
|
|
len = endp - person;
|
|
|
|
if (split_ident_line(&ident, person, len))
|
|
return 0;
|
|
|
|
mail = ident.mail_begin;
|
|
maillen = ident.mail_end - ident.mail_begin;
|
|
name = ident.name_begin;
|
|
namelen = ident.name_end - ident.name_begin;
|
|
|
|
if (map_user(mailmap, &mail, &maillen, &name, &namelen)) {
|
|
struct strbuf namemail = STRBUF_INIT;
|
|
|
|
strbuf_addf(&namemail, "%.*s <%.*s>",
|
|
(int)namelen, name, (int)maillen, mail);
|
|
|
|
strbuf_splice(buf, ident.name_begin - buf->buf,
|
|
ident.mail_end - ident.name_begin + 1,
|
|
namemail.buf, namemail.len);
|
|
|
|
strbuf_release(&namemail);
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int commit_match(struct commit *commit, struct rev_info *opt)
|
|
{
|
|
int retval;
|
|
const char *encoding;
|
|
const char *message;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
|
|
if (!opt->grep_filter.pattern_list && !opt->grep_filter.header_list)
|
|
return 1;
|
|
|
|
/* Prepend "fake" headers as needed */
|
|
if (opt->grep_filter.use_reflog_filter) {
|
|
strbuf_addstr(&buf, "reflog ");
|
|
get_reflog_message(&buf, opt->reflog_info);
|
|
strbuf_addch(&buf, '\n');
|
|
}
|
|
|
|
/*
|
|
* We grep in the user's output encoding, under the assumption that it
|
|
* is the encoding they are most likely to write their grep pattern
|
|
* for. In addition, it means we will match the "notes" encoding below,
|
|
* so we will not end up with a buffer that has two different encodings
|
|
* in it.
|
|
*/
|
|
encoding = get_log_output_encoding();
|
|
message = logmsg_reencode(commit, NULL, encoding);
|
|
|
|
/* Copy the commit to temporary if we are using "fake" headers */
|
|
if (buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
|
|
if (opt->grep_filter.header_list && opt->mailmap) {
|
|
if (!buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
|
|
commit_rewrite_person(&buf, "\nauthor ", opt->mailmap);
|
|
commit_rewrite_person(&buf, "\ncommitter ", opt->mailmap);
|
|
}
|
|
|
|
/* Append "fake" message parts as needed */
|
|
if (opt->show_notes) {
|
|
if (!buf.len)
|
|
strbuf_addstr(&buf, message);
|
|
format_display_notes(commit->object.oid.hash, &buf, encoding, 1);
|
|
}
|
|
|
|
/*
|
|
* Find either in the original commit message, or in the temporary.
|
|
* Note that we cast away the constness of "message" here. It is
|
|
* const because it may come from the cached commit buffer. That's OK,
|
|
* because we know that it is modifiable heap memory, and that while
|
|
* grep_buffer may modify it for speed, it will restore any
|
|
* changes before returning.
|
|
*/
|
|
if (buf.len)
|
|
retval = grep_buffer(&opt->grep_filter, buf.buf, buf.len);
|
|
else
|
|
retval = grep_buffer(&opt->grep_filter,
|
|
(char *)message, strlen(message));
|
|
strbuf_release(&buf);
|
|
unuse_commit_buffer(commit, message);
|
|
return opt->invert_grep ? !retval : retval;
|
|
}
|
|
|
|
static inline int want_ancestry(const struct rev_info *revs)
|
|
{
|
|
return (revs->rewrite_parents || revs->children.name);
|
|
}
|
|
|
|
enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (commit->object.flags & SHOWN)
|
|
return commit_ignore;
|
|
if (revs->unpacked && has_sha1_pack(commit->object.oid.hash))
|
|
return commit_ignore;
|
|
if (revs->show_all)
|
|
return commit_show;
|
|
if (commit->object.flags & UNINTERESTING)
|
|
return commit_ignore;
|
|
if (revs->min_age != -1 && (commit->date > revs->min_age))
|
|
return commit_ignore;
|
|
if (revs->min_parents || (revs->max_parents >= 0)) {
|
|
int n = commit_list_count(commit->parents);
|
|
if ((n < revs->min_parents) ||
|
|
((revs->max_parents >= 0) && (n > revs->max_parents)))
|
|
return commit_ignore;
|
|
}
|
|
if (!commit_match(commit, revs))
|
|
return commit_ignore;
|
|
if (revs->prune && revs->dense) {
|
|
/* Commit without changes? */
|
|
if (commit->object.flags & TREESAME) {
|
|
int n;
|
|
struct commit_list *p;
|
|
/* drop merges unless we want parenthood */
|
|
if (!want_ancestry(revs))
|
|
return commit_ignore;
|
|
/*
|
|
* If we want ancestry, then need to keep any merges
|
|
* between relevant commits to tie together topology.
|
|
* For consistency with TREESAME and simplification
|
|
* use "relevant" here rather than just INTERESTING,
|
|
* to treat bottom commit(s) as part of the topology.
|
|
*/
|
|
for (n = 0, p = commit->parents; p; p = p->next)
|
|
if (relevant_commit(p->item))
|
|
if (++n >= 2)
|
|
return commit_show;
|
|
return commit_ignore;
|
|
}
|
|
}
|
|
return commit_show;
|
|
}
|
|
|
|
define_commit_slab(saved_parents, struct commit_list *);
|
|
|
|
#define EMPTY_PARENT_LIST ((struct commit_list *)-1)
|
|
|
|
/*
|
|
* You may only call save_parents() once per commit (this is checked
|
|
* for non-root commits).
|
|
*/
|
|
static void save_parents(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
struct commit_list **pp;
|
|
|
|
if (!revs->saved_parents_slab) {
|
|
revs->saved_parents_slab = xmalloc(sizeof(struct saved_parents));
|
|
init_saved_parents(revs->saved_parents_slab);
|
|
}
|
|
|
|
pp = saved_parents_at(revs->saved_parents_slab, commit);
|
|
|
|
/*
|
|
* When walking with reflogs, we may visit the same commit
|
|
* several times: once for each appearance in the reflog.
|
|
*
|
|
* In this case, save_parents() will be called multiple times.
|
|
* We want to keep only the first set of parents. We need to
|
|
* store a sentinel value for an empty (i.e., NULL) parent
|
|
* list to distinguish it from a not-yet-saved list, however.
|
|
*/
|
|
if (*pp)
|
|
return;
|
|
if (commit->parents)
|
|
*pp = copy_commit_list(commit->parents);
|
|
else
|
|
*pp = EMPTY_PARENT_LIST;
|
|
}
|
|
|
|
static void free_saved_parents(struct rev_info *revs)
|
|
{
|
|
if (revs->saved_parents_slab)
|
|
clear_saved_parents(revs->saved_parents_slab);
|
|
}
|
|
|
|
struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
struct commit_list *parents;
|
|
|
|
if (!revs->saved_parents_slab)
|
|
return commit->parents;
|
|
|
|
parents = *saved_parents_at(revs->saved_parents_slab, commit);
|
|
if (parents == EMPTY_PARENT_LIST)
|
|
return NULL;
|
|
return parents;
|
|
}
|
|
|
|
enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
enum commit_action action = get_commit_action(revs, commit);
|
|
|
|
if (action == commit_show &&
|
|
!revs->show_all &&
|
|
revs->prune && revs->dense && want_ancestry(revs)) {
|
|
/*
|
|
* --full-diff on simplified parents is no good: it
|
|
* will show spurious changes from the commits that
|
|
* were elided. So we save the parents on the side
|
|
* when --full-diff is in effect.
|
|
*/
|
|
if (revs->full_diff)
|
|
save_parents(revs, commit);
|
|
if (rewrite_parents(revs, commit, rewrite_one) < 0)
|
|
return commit_error;
|
|
}
|
|
return action;
|
|
}
|
|
|
|
static void track_linear(struct rev_info *revs, struct commit *commit)
|
|
{
|
|
if (revs->track_first_time) {
|
|
revs->linear = 1;
|
|
revs->track_first_time = 0;
|
|
} else {
|
|
struct commit_list *p;
|
|
for (p = revs->previous_parents; p; p = p->next)
|
|
if (p->item == NULL || /* first commit */
|
|
!oidcmp(&p->item->object.oid, &commit->object.oid))
|
|
break;
|
|
revs->linear = p != NULL;
|
|
}
|
|
if (revs->reverse) {
|
|
if (revs->linear)
|
|
commit->object.flags |= TRACK_LINEAR;
|
|
}
|
|
free_commit_list(revs->previous_parents);
|
|
revs->previous_parents = copy_commit_list(commit->parents);
|
|
}
|
|
|
|
static struct commit *get_revision_1(struct rev_info *revs)
|
|
{
|
|
if (!revs->commits)
|
|
return NULL;
|
|
|
|
do {
|
|
struct commit *commit = pop_commit(&revs->commits);
|
|
|
|
if (revs->reflog_info) {
|
|
save_parents(revs, commit);
|
|
fake_reflog_parent(revs->reflog_info, commit);
|
|
commit->object.flags &= ~(ADDED | SEEN | SHOWN);
|
|
}
|
|
|
|
/*
|
|
* If we haven't done the list limiting, we need to look at
|
|
* the parents here. We also need to do the date-based limiting
|
|
* that we'd otherwise have done in limit_list().
|
|
*/
|
|
if (!revs->limited) {
|
|
if (revs->max_age != -1 &&
|
|
(commit->date < revs->max_age))
|
|
continue;
|
|
if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0) {
|
|
if (!revs->ignore_missing_links)
|
|
die("Failed to traverse parents of commit %s",
|
|
oid_to_hex(&commit->object.oid));
|
|
}
|
|
}
|
|
|
|
switch (simplify_commit(revs, commit)) {
|
|
case commit_ignore:
|
|
continue;
|
|
case commit_error:
|
|
die("Failed to simplify parents of commit %s",
|
|
oid_to_hex(&commit->object.oid));
|
|
default:
|
|
if (revs->track_linear)
|
|
track_linear(revs, commit);
|
|
return commit;
|
|
}
|
|
} while (revs->commits);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Return true for entries that have not yet been shown. (This is an
|
|
* object_array_each_func_t.)
|
|
*/
|
|
static int entry_unshown(struct object_array_entry *entry, void *cb_data_unused)
|
|
{
|
|
return !(entry->item->flags & SHOWN);
|
|
}
|
|
|
|
/*
|
|
* If array is on the verge of a realloc, garbage-collect any entries
|
|
* that have already been shown to try to free up some space.
|
|
*/
|
|
static void gc_boundary(struct object_array *array)
|
|
{
|
|
if (array->nr == array->alloc)
|
|
object_array_filter(array, entry_unshown, NULL);
|
|
}
|
|
|
|
static void create_boundary_commit_list(struct rev_info *revs)
|
|
{
|
|
unsigned i;
|
|
struct commit *c;
|
|
struct object_array *array = &revs->boundary_commits;
|
|
struct object_array_entry *objects = array->objects;
|
|
|
|
/*
|
|
* If revs->commits is non-NULL at this point, an error occurred in
|
|
* get_revision_1(). Ignore the error and continue printing the
|
|
* boundary commits anyway. (This is what the code has always
|
|
* done.)
|
|
*/
|
|
if (revs->commits) {
|
|
free_commit_list(revs->commits);
|
|
revs->commits = NULL;
|
|
}
|
|
|
|
/*
|
|
* Put all of the actual boundary commits from revs->boundary_commits
|
|
* into revs->commits
|
|
*/
|
|
for (i = 0; i < array->nr; i++) {
|
|
c = (struct commit *)(objects[i].item);
|
|
if (!c)
|
|
continue;
|
|
if (!(c->object.flags & CHILD_SHOWN))
|
|
continue;
|
|
if (c->object.flags & (SHOWN | BOUNDARY))
|
|
continue;
|
|
c->object.flags |= BOUNDARY;
|
|
commit_list_insert(c, &revs->commits);
|
|
}
|
|
|
|
/*
|
|
* If revs->topo_order is set, sort the boundary commits
|
|
* in topological order
|
|
*/
|
|
sort_in_topological_order(&revs->commits, revs->sort_order);
|
|
}
|
|
|
|
static struct commit *get_revision_internal(struct rev_info *revs)
|
|
{
|
|
struct commit *c = NULL;
|
|
struct commit_list *l;
|
|
|
|
if (revs->boundary == 2) {
|
|
/*
|
|
* All of the normal commits have already been returned,
|
|
* and we are now returning boundary commits.
|
|
* create_boundary_commit_list() has populated
|
|
* revs->commits with the remaining commits to return.
|
|
*/
|
|
c = pop_commit(&revs->commits);
|
|
if (c)
|
|
c->object.flags |= SHOWN;
|
|
return c;
|
|
}
|
|
|
|
/*
|
|
* If our max_count counter has reached zero, then we are done. We
|
|
* don't simply return NULL because we still might need to show
|
|
* boundary commits. But we want to avoid calling get_revision_1, which
|
|
* might do a considerable amount of work finding the next commit only
|
|
* for us to throw it away.
|
|
*
|
|
* If it is non-zero, then either we don't have a max_count at all
|
|
* (-1), or it is still counting, in which case we decrement.
|
|
*/
|
|
if (revs->max_count) {
|
|
c = get_revision_1(revs);
|
|
if (c) {
|
|
while (revs->skip_count > 0) {
|
|
revs->skip_count--;
|
|
c = get_revision_1(revs);
|
|
if (!c)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (revs->max_count > 0)
|
|
revs->max_count--;
|
|
}
|
|
|
|
if (c)
|
|
c->object.flags |= SHOWN;
|
|
|
|
if (!revs->boundary)
|
|
return c;
|
|
|
|
if (!c) {
|
|
/*
|
|
* get_revision_1() runs out the commits, and
|
|
* we are done computing the boundaries.
|
|
* switch to boundary commits output mode.
|
|
*/
|
|
revs->boundary = 2;
|
|
|
|
/*
|
|
* Update revs->commits to contain the list of
|
|
* boundary commits.
|
|
*/
|
|
create_boundary_commit_list(revs);
|
|
|
|
return get_revision_internal(revs);
|
|
}
|
|
|
|
/*
|
|
* boundary commits are the commits that are parents of the
|
|
* ones we got from get_revision_1() but they themselves are
|
|
* not returned from get_revision_1(). Before returning
|
|
* 'c', we need to mark its parents that they could be boundaries.
|
|
*/
|
|
|
|
for (l = c->parents; l; l = l->next) {
|
|
struct object *p;
|
|
p = &(l->item->object);
|
|
if (p->flags & (CHILD_SHOWN | SHOWN))
|
|
continue;
|
|
p->flags |= CHILD_SHOWN;
|
|
gc_boundary(&revs->boundary_commits);
|
|
add_object_array(p, NULL, &revs->boundary_commits);
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
struct commit *get_revision(struct rev_info *revs)
|
|
{
|
|
struct commit *c;
|
|
struct commit_list *reversed;
|
|
|
|
if (revs->reverse) {
|
|
reversed = NULL;
|
|
while ((c = get_revision_internal(revs)))
|
|
commit_list_insert(c, &reversed);
|
|
revs->commits = reversed;
|
|
revs->reverse = 0;
|
|
revs->reverse_output_stage = 1;
|
|
}
|
|
|
|
if (revs->reverse_output_stage) {
|
|
c = pop_commit(&revs->commits);
|
|
if (revs->track_linear)
|
|
revs->linear = !!(c && c->object.flags & TRACK_LINEAR);
|
|
return c;
|
|
}
|
|
|
|
c = get_revision_internal(revs);
|
|
if (c && revs->graph)
|
|
graph_update(revs->graph, c);
|
|
if (!c) {
|
|
free_saved_parents(revs);
|
|
if (revs->previous_parents) {
|
|
free_commit_list(revs->previous_parents);
|
|
revs->previous_parents = NULL;
|
|
}
|
|
}
|
|
return c;
|
|
}
|
|
|
|
char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
if (commit->object.flags & BOUNDARY)
|
|
return "-";
|
|
else if (commit->object.flags & UNINTERESTING)
|
|
return "^";
|
|
else if (commit->object.flags & PATCHSAME)
|
|
return "=";
|
|
else if (!revs || revs->left_right) {
|
|
if (commit->object.flags & SYMMETRIC_LEFT)
|
|
return "<";
|
|
else
|
|
return ">";
|
|
} else if (revs->graph)
|
|
return "*";
|
|
else if (revs->cherry_mark)
|
|
return "+";
|
|
return "";
|
|
}
|
|
|
|
void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
|
|
{
|
|
char *mark = get_revision_mark(revs, commit);
|
|
if (!strlen(mark))
|
|
return;
|
|
fputs(mark, stdout);
|
|
putchar(' ');
|
|
}
|