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Merge branch 'jc/sha1-name-more'

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Teaches the object name parser things like a "git describe" output
is always a commit object, "A" in "git log A" must be a committish,
and "A" and "B" in "git log A...B" both must be committish, etc., to
prolong the lifetime of abbreviated object names.

* jc/sha1-name-more: (27 commits)
  t1512: match the "other" object names
  t1512: ignore whitespaces in wc -l output
  rev-parse --disambiguate=<prefix>
  rev-parse: A and B in "rev-parse A..B" refer to committish
  reset: the command takes committish
  commit-tree: the command wants a tree and commits
  apply: --build-fake-ancestor expects blobs
  sha1_name.c: add support for disambiguating other types
  revision.c: the "log" family, except for "show", takes committish
  revision.c: allow handle_revision_arg() to take other flags
  sha1_name.c: introduce get_sha1_committish()
  sha1_name.c: teach lookup context to get_sha1_with_context()
  sha1_name.c: many short names can only be committish
  sha1_name.c: get_sha1_1() takes lookup flags
  sha1_name.c: get_describe_name() by definition groks only commits
  sha1_name.c: teach get_short_sha1() a commit-only option
  sha1_name.c: allow get_short_sha1() to take other flags
  get_sha1(): fix error status regression
  sha1_name.c: restructure disambiguation of short names
  sha1_name.c: correct misnamed "canonical" and "res"
  ...
This commit is contained in:
Junio C Hamano
2012-07-22 12:55:07 -07:00
parent 9a0231b395 31ffd0c0c1
commit 0958a24d73
15 changed files with 715 additions and 173 deletions
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28
cache.h
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@ -790,17 +790,25 @@ struct object_context {
unsigned mode;
};
#define GET_SHA1_QUIETLY 01
#define GET_SHA1_COMMIT 02
#define GET_SHA1_COMMITTISH 04
#define GET_SHA1_TREE 010
#define GET_SHA1_TREEISH 020
#define GET_SHA1_BLOB 040
#define GET_SHA1_ONLY_TO_DIE 04000
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int only_to_die, const char *prefix);
static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
{
return get_sha1_with_mode_1(str, sha1, mode, 0, NULL);
}
extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int only_to_die, const char *prefix);
static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc)
{
return get_sha1_with_context_1(str, sha1, orc, 0, NULL);
}
extern int get_sha1_commit(const char *str, unsigned char *sha1);
extern int get_sha1_committish(const char *str, unsigned char *sha1);
extern int get_sha1_tree(const char *str, unsigned char *sha1);
extern int get_sha1_treeish(const char *str, unsigned char *sha1);
extern int get_sha1_blob(const char *str, unsigned char *sha1);
extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
typedef int each_abbrev_fn(const unsigned char *sha1, void *);
extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
/*
* Try to read a SHA1 in hexadecimal format from the 40 characters