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9202434cbd
This does:
- add a "rev.simplify_history" flag which defaults to on
- it turns it off for "git whatchanged" (which thus now has real
semantics outside of "git log")
- it adds a command line flag ("--full-history") to turn it off for
others (ie you can make "git log" and "gitk" etc get the semantics if
you want to.
Now, just as an example of _why_ you really really really want to simplify
history by default, apply this patch, install it, and try these two
command lines:
gitk --full-history -- git.c
gitk -- git.c
and compare the output.
So with this, you can also now do
git whatchanged -p -- gitweb.cgi
git log -p --full-history -- gitweb.cgi
and it will show the old history of gitweb.cgi, even though it's not
relevant to the _current_ state of the name "gitweb.cgi"
NOTE NOTE NOTE! It will still actually simplify away merges that didn't
change anything at all into either child. That creates these bogus strange
discontinuities if you look at it with "gitk" (look at the --full-history
gitk output for git.c, and you'll see a few strange cases).
So the whole "--parent" thing ends up somewhat bogus with --full-history
because of this, but I'm not sure it's worth even worrying about. I don't
think you'd ever want to really use "--full-history" with the graphical
representation, I just give it as an example exactly to show _why_ doing
so would be insane.
I think this is trivial enough and useful enough to be worth merging into
the stable branch.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
107 lines
2.5 KiB
C
107 lines
2.5 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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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_list *pending_objects;
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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,
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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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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 *add_signoff;
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const char *extra_headers;
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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);
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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 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 struct object_list **add_object(struct object *obj,
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struct object_list **p,
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struct name_path *path,
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const char *name);
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#endif
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