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git/revision.h
Linus Torvalds 78892e3261 revision traversal: '--simplify-by-decoration'
With this, you can simplify history not by the contents of the tree, but
whether a commit has been named (ie it's referred to by some branch or
tag) or not.

This makes it possible to see the relationship between different named
commits, without actually seeing any of the details.

When used with pathspec, you would get the usual view that is limited to
the commits that change the contents of the tree plus commits that are
named.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-04 00:45:34 -08:00

167 lines
4 KiB
C

#ifndef REVISION_H
#define REVISION_H
#include "parse-options.h"
#include "grep.h"
#define SEEN (1u<<0)
#define UNINTERESTING (1u<<1)
#define TREESAME (1u<<2)
#define SHOWN (1u<<3)
#define TMP_MARK (1u<<4) /* for isolated cases; clean after use */
#define BOUNDARY (1u<<5)
#define CHILD_SHOWN (1u<<6)
#define ADDED (1u<<7) /* Parents already parsed and added? */
#define SYMMETRIC_LEFT (1u<<8)
#define ALL_REV_FLAGS ((1u<<9)-1)
struct rev_info;
struct log_info;
struct rev_info {
/* Starting list */
struct commit_list *commits;
struct object_array pending;
/* Parents of shown commits */
struct object_array boundary_commits;
/* Basic information */
const char *prefix;
const char *def;
void *prune_data;
unsigned int early_output;
/* Traversal flags */
unsigned int dense:1,
prune:1,
no_merges:1,
no_walk:1,
show_all:1,
remove_empty_trees:1,
simplify_history:1,
lifo:1,
topo_order:1,
simplify_merges:1,
simplify_by_decoration:1,
tag_objects:1,
tree_objects:1,
blob_objects:1,
edge_hint:1,
limited:1,
unpacked:1, /* see also ignore_packed below */
boundary:2,
left_right:1,
rewrite_parents:1,
print_parents:1,
show_source:1,
show_decorations:1,
reverse:1,
reverse_output_stage:1,
cherry_pick:1,
first_parent_only:1;
/* Diff flags */
unsigned int diff:1,
full_diff:1,
show_root_diff:1,
no_commit_id:1,
verbose_header:1,
ignore_merges:1,
combine_merges:1,
dense_combined_merges:1,
always_show_header:1;
/* Format info */
unsigned int shown_one:1,
show_merge:1,
abbrev_commit:1,
use_terminator:1,
missing_newline:1;
enum date_mode date_mode;
const char **ignore_packed; /* pretend objects in these are unpacked */
int num_ignore_packed;
unsigned int abbrev;
enum cmit_fmt commit_format;
struct log_info *loginfo;
int nr, total;
const char *mime_boundary;
char *message_id;
const char *ref_message_id;
const char *add_signoff;
const char *extra_headers;
const char *log_reencode;
const char *subject_prefix;
int no_inline;
int show_log_size;
/* Filter by commit log message */
struct grep_opt grep_filter;
/* Display history graph */
struct git_graph *graph;
/* special limits */
int skip_count;
int max_count;
unsigned long max_age;
unsigned long min_age;
/* diff info for patches and for paths limiting */
struct diff_options diffopt;
struct diff_options pruning;
struct reflog_walk_info *reflog_info;
struct decoration children;
struct decoration merge_simplification;
};
#define REV_TREE_SAME 0
#define REV_TREE_NEW 1
#define REV_TREE_DIFFERENT 2
/* revision.c */
void read_revisions_from_stdin(struct rev_info *revs);
typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
extern volatile show_early_output_fn_t show_early_output;
extern void init_revisions(struct rev_info *revs, const char *prefix);
extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
const struct option *options,
const char * const usagestr[]);
extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
extern int prepare_revision_walk(struct rev_info *revs);
extern struct commit *get_revision(struct rev_info *revs);
extern void mark_parents_uninteresting(struct commit *commit);
extern void mark_tree_uninteresting(struct tree *tree);
struct name_path {
struct name_path *up;
int elem_len;
const char *elem;
};
extern void add_object(struct object *obj,
struct object_array *p,
struct name_path *path,
const char *name);
extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
extern void add_head_to_pending(struct rev_info *);
enum commit_action {
commit_ignore,
commit_show,
commit_error
};
extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
#endif