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577ed5c20b
The output from "symmetric diff", i.e. A...B, does not
distinguish between commits that are reachable from A and the
ones that are reachable from B. In this picture, such a
symmetric diff includes commits marked with a and b.
x---b---b branch B
/ \ /
/ .
/ / \
o---x---a---a branch A
However, you cannot tell which ones are 'a' and which ones are
'b' from the output. Sometimes this is frustrating. This adds
an output option, --left-right, to rev-list.
rev-list --left-right A...B
would show ones reachable from A prefixed with '<' and the ones
reachable from B prefixed with '>'.
When combined with --boundary, boundary commits (the ones marked
with 'x' in the above picture) are shown with prefix '-', so you
would see list that looks like this:
git rev-list --left-right --boundary --pretty=oneline A...B
>bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 3rd on b
>bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 2nd on b
<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3rd on a
<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 2nd on a
-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 1st on b
-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 1st on a
Signed-off-by: Junio C Hamano <junkio@cox.net>
123 lines
3.0 KiB
C
123 lines
3.0 KiB
C
#ifndef REVISION_H
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#define REVISION_H
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#define SEEN (1u<<0)
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#define UNINTERESTING (1u<<1)
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#define TREECHANGE (1u<<2)
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#define SHOWN (1u<<3)
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#define TMP_MARK (1u<<4) /* for isolated cases; clean after use */
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#define BOUNDARY (1u<<5)
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#define BOUNDARY_SHOW (1u<<6)
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#define ADDED (1u<<7) /* Parents already parsed and added? */
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#define SYMMETRIC_LEFT (1u<<8)
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struct rev_info;
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struct log_info;
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typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
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struct rev_info {
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/* Starting list */
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struct commit_list *commits;
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struct object_array pending;
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/* Basic information */
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const char *prefix;
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void *prune_data;
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prune_fn_t *prune_fn;
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/* Traversal flags */
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unsigned int dense:1,
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no_merges:1,
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no_walk:1,
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remove_empty_trees:1,
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simplify_history:1,
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lifo:1,
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topo_order:1,
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tag_objects:1,
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tree_objects:1,
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blob_objects:1,
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edge_hint:1,
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limited:1,
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unpacked:1, /* see also ignore_packed below */
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boundary:1,
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parents:1;
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/* Diff flags */
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unsigned int diff:1,
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full_diff:1,
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show_root_diff:1,
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no_commit_id:1,
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verbose_header:1,
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ignore_merges:1,
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combine_merges:1,
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dense_combined_merges:1,
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always_show_header:1;
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/* Format info */
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unsigned int shown_one:1,
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abbrev_commit:1,
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relative_date:1;
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const char **ignore_packed; /* pretend objects in these are unpacked */
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int num_ignore_packed;
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unsigned int abbrev;
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enum cmit_fmt commit_format;
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struct log_info *loginfo;
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int nr, total;
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const char *mime_boundary;
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const char *message_id;
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const char *ref_message_id;
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const char *add_signoff;
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const char *extra_headers;
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/* Filter by commit log message */
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struct grep_opt *grep_filter;
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/* special limits */
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int max_count;
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unsigned long max_age;
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unsigned long min_age;
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/* diff info for patches and for paths limiting */
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struct diff_options diffopt;
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struct diff_options pruning;
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topo_sort_set_fn_t topo_setter;
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topo_sort_get_fn_t topo_getter;
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};
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#define REV_TREE_SAME 0
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#define REV_TREE_NEW 1
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#define REV_TREE_DIFFERENT 2
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/* revision.c */
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extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
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extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
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extern void init_revisions(struct rev_info *revs, const char *prefix);
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extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
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extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
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extern void prepare_revision_walk(struct rev_info *revs);
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extern struct commit *get_revision(struct rev_info *revs);
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extern void mark_parents_uninteresting(struct commit *commit);
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extern void mark_tree_uninteresting(struct tree *tree);
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struct name_path {
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struct name_path *up;
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int elem_len;
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const char *elem;
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};
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extern void add_object(struct object *obj,
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struct object_array *p,
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struct name_path *path,
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const char *name);
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extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
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#endif
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