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merge-recursive: apply necessary modifications for directory renames
This commit hooks together all the directory rename logic by making the necessary changes to the rename struct, it's dst_entry, and the diff_filepair under consideration. Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren
Junio C Hamano
parent
5b047ac070
commit
9c0743fe1e
2 changed files with 211 additions and 26 deletions
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@ -180,6 +180,7 @@ static int oid_eq(const struct object_id *a, const struct object_id *b)
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enum rename_type {
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RENAME_NORMAL = 0,
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RENAME_DIR,
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RENAME_DELETE,
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RENAME_ONE_FILE_TO_ONE,
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RENAME_ONE_FILE_TO_TWO,
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@ -610,6 +611,7 @@ struct rename {
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*/
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struct stage_data *src_entry;
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struct stage_data *dst_entry;
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unsigned add_turned_into_rename:1;
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unsigned processed:1;
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};
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@ -644,6 +646,27 @@ static int update_stages(struct merge_options *opt, const char *path,
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return 0;
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}
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static int update_stages_for_stage_data(struct merge_options *opt,
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const char *path,
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const struct stage_data *stage_data)
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{
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struct diff_filespec o, a, b;
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o.mode = stage_data->stages[1].mode;
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oidcpy(&o.oid, &stage_data->stages[1].oid);
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a.mode = stage_data->stages[2].mode;
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oidcpy(&a.oid, &stage_data->stages[2].oid);
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b.mode = stage_data->stages[3].mode;
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oidcpy(&b.oid, &stage_data->stages[3].oid);
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return update_stages(opt, path,
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is_null_oid(&o.oid) ? NULL : &o,
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is_null_oid(&a.oid) ? NULL : &a,
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is_null_oid(&b.oid) ? NULL : &b);
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}
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static void update_entry(struct stage_data *entry,
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struct diff_filespec *o,
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struct diff_filespec *a,
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@ -1121,6 +1144,18 @@ static int merge_file_one(struct merge_options *o,
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return merge_file_1(o, &one, &a, &b, branch1, branch2, mfi);
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}
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static int conflict_rename_dir(struct merge_options *o,
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struct diff_filepair *pair,
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const char *rename_branch,
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const char *other_branch)
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{
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const struct diff_filespec *dest = pair->two;
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if (update_file(o, 1, &dest->oid, dest->mode, dest->path))
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return -1;
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return 0;
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}
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static int handle_change_delete(struct merge_options *o,
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const char *path, const char *old_path,
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const struct object_id *o_oid, int o_mode,
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@ -1390,6 +1425,24 @@ static int conflict_rename_rename_2to1(struct merge_options *o,
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if (!ret)
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ret = update_file(o, 0, &mfi_c2.oid, mfi_c2.mode,
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new_path2);
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/*
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* unpack_trees() actually populates the index for us for
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* "normal" rename/rename(2to1) situtations so that the
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* correct entries are at the higher stages, which would
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* make the call below to update_stages_for_stage_data
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* unnecessary. However, if either of the renames came
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* from a directory rename, then unpack_trees() will not
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* have gotten the right data loaded into the index, so we
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* need to do so now. (While it'd be tempting to move this
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* call to update_stages_for_stage_data() to
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* apply_directory_rename_modifications(), that would break
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* our intermediate calls to would_lose_untracked() since
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* those rely on the current in-memory index. See also the
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* big "NOTE" in update_stages()).
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*/
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if (update_stages_for_stage_data(o, path, ci->dst_entry1))
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ret = -1;
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free(new_path2);
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free(new_path1);
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}
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@ -1952,6 +2005,111 @@ static char *check_for_directory_rename(struct merge_options *o,
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return new_path;
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}
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static void apply_directory_rename_modifications(struct merge_options *o,
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struct diff_filepair *pair,
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char *new_path,
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struct rename *re,
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struct tree *tree,
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struct tree *o_tree,
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struct tree *a_tree,
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struct tree *b_tree,
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struct string_list *entries,
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int *clean)
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{
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struct string_list_item *item;
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int stage = (tree == a_tree ? 2 : 3);
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/*
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* In all cases where we can do directory rename detection,
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* unpack_trees() will have read pair->two->path into the
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* index and the working copy. We need to remove it so that
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* we can instead place it at new_path. It is guaranteed to
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* not be untracked (unpack_trees() would have errored out
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* saying the file would have been overwritten), but it might
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* be dirty, though.
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*/
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remove_file(o, 1, pair->two->path, 0 /* no_wd */);
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/* Find or create a new re->dst_entry */
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item = string_list_lookup(entries, new_path);
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if (item) {
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/*
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* Since we're renaming on this side of history, and it's
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* due to a directory rename on the other side of history
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* (which we only allow when the directory in question no
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* longer exists on the other side of history), the
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* original entry for re->dst_entry is no longer
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* necessary...
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*/
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re->dst_entry->processed = 1;
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/*
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* ...because we'll be using this new one.
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*/
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re->dst_entry = item->util;
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} else {
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/*
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* re->dst_entry is for the before-dir-rename path, and we
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* need it to hold information for the after-dir-rename
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* path. Before creating a new entry, we need to mark the
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* old one as unnecessary (...unless it is shared by
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* src_entry, i.e. this didn't use to be a rename, in which
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* case we can just allow the normal processing to happen
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* for it).
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*/
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if (pair->status == 'R')
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re->dst_entry->processed = 1;
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re->dst_entry = insert_stage_data(new_path,
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o_tree, a_tree, b_tree,
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entries);
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item = string_list_insert(entries, new_path);
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item->util = re->dst_entry;
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}
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/*
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* Update the stage_data with the information about the path we are
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* moving into place. That slot will be empty and available for us
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* to write to because of the collision checks in
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* handle_path_level_conflicts(). In other words,
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* re->dst_entry->stages[stage].oid will be the null_oid, so it's
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* open for us to write to.
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*
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* It may be tempting to actually update the index at this point as
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* well, using update_stages_for_stage_data(), but as per the big
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* "NOTE" in update_stages(), doing so will modify the current
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* in-memory index which will break calls to would_lose_untracked()
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* that we need to make. Instead, we need to just make sure that
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* the various conflict_rename_*() functions update the index
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* explicitly rather than relying on unpack_trees() to have done it.
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*/
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get_tree_entry(&tree->object.oid,
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pair->two->path,
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&re->dst_entry->stages[stage].oid,
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&re->dst_entry->stages[stage].mode);
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/* Update pair status */
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if (pair->status == 'A') {
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/*
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* Recording rename information for this add makes it look
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* like a rename/delete conflict. Make sure we can
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* correctly handle this as an add that was moved to a new
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* directory instead of reporting a rename/delete conflict.
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*/
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re->add_turned_into_rename = 1;
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}
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/*
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* We don't actually look at pair->status again, but it seems
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* pedagogically correct to adjust it.
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*/
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pair->status = 'R';
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/*
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* Finally, record the new location.
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*/
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pair->two->path = new_path;
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}
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/*
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* Get information of all renames which occurred in 'pairs', making use of
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* any implicit directory renames inferred from the other side of history.
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@ -2001,6 +2159,7 @@ static struct string_list *get_renames(struct merge_options *o,
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re = xmalloc(sizeof(*re));
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re->processed = 0;
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re->add_turned_into_rename = 0;
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re->pair = pair;
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item = string_list_lookup(entries, re->pair->one->path);
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if (!item)
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@ -2017,6 +2176,12 @@ static struct string_list *get_renames(struct merge_options *o,
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re->dst_entry = item->util;
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item = string_list_insert(renames, pair->one->path);
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item->util = re;
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if (new_path)
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apply_directory_rename_modifications(o, pair, new_path,
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re, tree, o_tree,
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a_tree, b_tree,
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entries,
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clean_merge);
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}
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hashmap_iter_init(&collisions, &iter);
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@ -2186,7 +2351,19 @@ static int process_renames(struct merge_options *o,
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dst_other.mode = ren1->dst_entry->stages[other_stage].mode;
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try_merge = 0;
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if (oid_eq(&src_other.oid, &null_oid)) {
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if (oid_eq(&src_other.oid, &null_oid) &&
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ren1->add_turned_into_rename) {
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setup_rename_conflict_info(RENAME_DIR,
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ren1->pair,
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NULL,
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branch1,
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branch2,
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ren1->dst_entry,
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NULL,
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o,
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NULL,
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NULL);
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} else if (oid_eq(&src_other.oid, &null_oid)) {
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setup_rename_conflict_info(RENAME_DELETE,
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ren1->pair,
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NULL,
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@ -2603,6 +2780,14 @@ static int process_entry(struct merge_options *o,
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o_oid, o_mode, a_oid, a_mode, b_oid, b_mode,
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conflict_info);
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break;
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case RENAME_DIR:
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clean_merge = 1;
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if (conflict_rename_dir(o,
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conflict_info->pair1,
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conflict_info->branch1,
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conflict_info->branch2))
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clean_merge = -1;
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break;
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case RENAME_DELETE:
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clean_merge = 0;
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if (conflict_rename_delete(o,
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@ -69,7 +69,7 @@ test_expect_success '1a-setup: Simple directory rename detection' '
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)
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'
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test_expect_failure '1a-check: Simple directory rename detection' '
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test_expect_success '1a-check: Simple directory rename detection' '
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(
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cd 1a &&
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@ -136,7 +136,7 @@ test_expect_success '1b-setup: Merge a directory with another' '
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)
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'
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test_expect_failure '1b-check: Merge a directory with another' '
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test_expect_success '1b-check: Merge a directory with another' '
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(
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cd 1b &&
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@ -194,7 +194,7 @@ test_expect_success '1c-setup: Transitive renaming' '
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)
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'
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test_expect_failure '1c-check: Transitive renaming' '
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test_expect_success '1c-check: Transitive renaming' '
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(
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cd 1c &&
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@ -263,7 +263,7 @@ test_expect_success '1d-setup: Directory renames cause a rename/rename(2to1) con
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)
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'
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test_expect_failure '1d-check: Directory renames cause a rename/rename(2to1) conflict' '
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test_expect_success '1d-check: Directory renames cause a rename/rename(2to1) conflict' '
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(
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cd 1d &&
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@ -342,7 +342,7 @@ test_expect_success '1e-setup: Renamed directory, with all files being renamed t
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)
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'
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test_expect_failure '1e-check: Renamed directory, with all files being renamed too' '
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test_expect_success '1e-check: Renamed directory, with all files being renamed too' '
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(
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cd 1e &&
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@ -408,7 +408,7 @@ test_expect_success '1f-setup: Split a directory into two other directories' '
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)
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'
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test_expect_failure '1f-check: Split a directory into two other directories' '
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test_expect_success '1f-check: Split a directory into two other directories' '
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(
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cd 1f &&
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@ -907,7 +907,7 @@ test_expect_success '5a-setup: Merge directories, other side adds files to origi
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)
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'
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test_expect_failure '5a-check: Merge directories, other side adds files to original and target' '
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test_expect_success '5a-check: Merge directories, other side adds files to original and target' '
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(
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cd 5a &&
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@ -981,7 +981,7 @@ test_expect_success '5b-setup: Rename/delete in order to get add/add/add conflic
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)
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'
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test_expect_failure '5b-check: Rename/delete in order to get add/add/add conflict' '
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test_expect_success '5b-check: Rename/delete in order to get add/add/add conflict' '
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(
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cd 5b &&
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@ -1061,7 +1061,7 @@ test_expect_success '5c-setup: Transitive rename would cause rename/rename/renam
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)
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'
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test_expect_failure '5c-check: Transitive rename would cause rename/rename/rename/add/add/add' '
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test_expect_success '5c-check: Transitive rename would cause rename/rename/rename/add/add/add' '
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(
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cd 5c &&
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@ -1145,7 +1145,7 @@ test_expect_success '5d-setup: Directory/file/file conflict due to directory ren
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)
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'
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test_expect_failure '5d-check: Directory/file/file conflict due to directory rename' '
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test_expect_success '5d-check: Directory/file/file conflict due to directory rename' '
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(
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cd 5d &&
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@ -1583,7 +1583,7 @@ test_expect_success '7a-setup: rename-dir vs. rename-dir (NOT split evenly) PLUS
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)
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'
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test_expect_failure '7a-check: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' '
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test_expect_success '7a-check: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' '
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(
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cd 7a &&
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@ -1655,7 +1655,7 @@ test_expect_success '7b-setup: rename/rename(2to1), but only due to transitive r
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)
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'
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test_expect_failure '7b-check: rename/rename(2to1), but only due to transitive rename' '
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test_expect_success '7b-check: rename/rename(2to1), but only due to transitive rename' '
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(
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cd 7b &&
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@ -1731,7 +1731,7 @@ test_expect_success '7c-setup: rename/rename(1to...2or3); transitive rename may
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)
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'
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test_expect_failure '7c-check: rename/rename(1to...2or3); transitive rename may add complexity' '
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test_expect_success '7c-check: rename/rename(1to...2or3); transitive rename may add complexity' '
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(
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cd 7c &&
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@ -1795,7 +1795,7 @@ test_expect_success '7d-setup: transitive rename involved in rename/delete; how
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)
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'
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test_expect_failure '7d-check: transitive rename involved in rename/delete; how is it reported?' '
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test_expect_success '7d-check: transitive rename involved in rename/delete; how is it reported?' '
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(
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cd 7d &&
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@ -1885,7 +1885,7 @@ test_expect_success '7e-setup: transitive rename in rename/delete AND dirs in th
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)
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'
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test_expect_failure '7e-check: transitive rename in rename/delete AND dirs in the way' '
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test_expect_success '7e-check: transitive rename in rename/delete AND dirs in the way' '
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(
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cd 7e &&
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@ -1976,7 +1976,7 @@ test_expect_success '8a-setup: Dual-directory rename, one into the others way' '
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)
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'
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test_expect_failure '8a-check: Dual-directory rename, one into the others way' '
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test_expect_success '8a-check: Dual-directory rename, one into the others way' '
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(
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cd 8a &&
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|
@ -2121,7 +2121,7 @@ test_expect_success '8c-setup: rename+modify/delete' '
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)
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'
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test_expect_failure '8c-check: rename+modify/delete' '
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test_expect_success '8c-check: rename+modify/delete' '
|
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(
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cd 8c &&
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@ -2208,7 +2208,7 @@ test_expect_success '8d-setup: rename/delete...or not?' '
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)
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'
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test_expect_failure '8d-check: rename/delete...or not?' '
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test_expect_success '8d-check: rename/delete...or not?' '
|
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(
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cd 8d &&
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|
|
@ -2283,7 +2283,7 @@ test_expect_success '8e-setup: Both sides rename, one side adds to original dire
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)
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'
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test_expect_failure '8e-check: Both sides rename, one side adds to original directory' '
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test_expect_success '8e-check: Both sides rename, one side adds to original directory' '
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(
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cd 8e &&
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|
|
@ -2370,7 +2370,7 @@ test_expect_success '9a-setup: Inner renamed directory within outer renamed dire
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure '9a-check: Inner renamed directory within outer renamed directory' '
|
||||
test_expect_success '9a-check: Inner renamed directory within outer renamed directory' '
|
||||
(
|
||||
cd 9a &&
|
||||
|
||||
|
|
@ -2440,7 +2440,7 @@ test_expect_success '9b-setup: Transitive rename with content merge' '
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure '9b-check: Transitive rename with content merge' '
|
||||
test_expect_success '9b-check: Transitive rename with content merge' '
|
||||
(
|
||||
cd 9b &&
|
||||
|
||||
|
|
@ -2530,7 +2530,7 @@ test_expect_success '9c-setup: Doubly transitive rename?' '
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure '9c-check: Doubly transitive rename?' '
|
||||
test_expect_success '9c-check: Doubly transitive rename?' '
|
||||
(
|
||||
cd 9c &&
|
||||
|
||||
|
|
@ -2618,7 +2618,7 @@ test_expect_success '9d-setup: N-way transitive rename?' '
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure '9d-check: N-way transitive rename?' '
|
||||
test_expect_success '9d-check: N-way transitive rename?' '
|
||||
(
|
||||
cd 9d &&
|
||||
|
||||
|
|
@ -2700,7 +2700,7 @@ test_expect_success '9e-setup: N-to-1 whammo' '
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure C_LOCALE_OUTPUT '9e-check: N-to-1 whammo' '
|
||||
test_expect_success C_LOCALE_OUTPUT '9e-check: N-to-1 whammo' '
|
||||
(
|
||||
cd 9e &&
|
||||
|
||||
|
|
@ -2778,7 +2778,7 @@ test_expect_success '9f-setup: Renamed directory that only contained immediate s
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_failure '9f-check: Renamed directory that only contained immediate subdirs' '
|
||||
test_expect_success '9f-check: Renamed directory that only contained immediate subdirs' '
|
||||
(
|
||||
cd 9f &&
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue