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revparse: Lookup sha before branch

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This commit is contained in:
nulltoken 2013-02-03 11:44:26 +01:00
parent 545b479a07
commit 0e8e5a6189
2 changed files with 103 additions and 6 deletions
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35
src/revparse.c
View File

@ -67,10 +67,9 @@ cleanup:
return error;
}
static int maybe_sha_or_abbrev(git_object**out, git_repository *repo, const char *spec)
static int maybe_sha_or_abbrev(git_object** out, git_repository *repo, const char *spec, size_t speclen)
{
git_oid oid;
size_t speclen = strlen(spec);
if (git_oid_fromstrn(&oid, spec, speclen) < 0)
return GIT_ENOTFOUND;
@ -78,6 +77,23 @@ static int maybe_sha_or_abbrev(git_object**out, git_repository *repo, const char
return git_object_lookup_prefix(out, repo, &oid, speclen, GIT_OBJ_ANY);
}
static int maybe_sha(git_object** out, git_repository *repo, const char *spec)
{
size_t speclen = strlen(spec);
if (speclen != GIT_OID_HEXSZ)
return GIT_ENOTFOUND;
return maybe_sha_or_abbrev(out, repo, spec, speclen);
}
static int maybe_abbrev(git_object** out, git_repository *repo, const char *spec)
{
size_t speclen = strlen(spec);
return maybe_sha_or_abbrev(out, repo, spec, speclen);
}
static int build_regex(regex_t *regex, const char *pattern)
{
int error;
@ -118,7 +134,7 @@ static int maybe_describe(git_object**out, git_repository *repo, const char *spe
if (error)
return GIT_ENOTFOUND;
return maybe_sha_or_abbrev(out, repo, substr+2);
return maybe_abbrev(out, repo, substr+2);
}
static int revparse_lookup_object(git_object **out, git_repository *repo, const char *spec)
@ -126,6 +142,13 @@ static int revparse_lookup_object(git_object **out, git_repository *repo, const
int error;
git_reference *ref;
error = maybe_sha(out, repo, spec);
if (!error)
return 0;
if (error < 0 && error != GIT_ENOTFOUND)
return error;
error = disambiguate_refname(&ref, repo, spec);
if (!error) {
error = git_object_lookup(out, repo, git_reference_target(ref), GIT_OBJ_ANY);
@ -136,14 +159,14 @@ static int revparse_lookup_object(git_object **out, git_repository *repo, const
if (error < 0 && error != GIT_ENOTFOUND)
return error;
error = maybe_describe(out, repo, spec);
error = maybe_abbrev(out, repo, spec);
if (!error)
return 0;
if (error < 0 && error != GIT_ENOTFOUND)
return error;
error = maybe_sha_or_abbrev(out, repo, spec);
error = maybe_describe(out, repo, spec);
if (!error)
return 0;
@ -217,7 +240,7 @@ static int retrieve_previously_checked_out_branch_or_revision(git_object **out,
if (error < 0 && error != GIT_ENOTFOUND)
goto cleanup;
error = maybe_sha_or_abbrev(out, repo, git_buf_cstr(&buf));
error = maybe_abbrev(out, repo, git_buf_cstr(&buf));
goto cleanup;
}

74
tests-clar/refs/revparse.c
View File

@ -521,3 +521,77 @@ void test_refs_revparse__try_to_retrieve_branch_before_described_tag(void)
git_object_free(target);
cl_git_sandbox_cleanup();
}
/**
* $ git rev-parse a65fedf39aefe402d3bb6e24df4d4f5fe4547750
* a65fedf39aefe402d3bb6e24df4d4f5fe4547750
*
* $ git rev-parse HEAD~3
* 4a202b346bb0fb0db7eff3cffeb3c70babbd2045
*
* $ git branch a65fedf39aefe402d3bb6e24df4d4f5fe4547750 HEAD~3
*
* $ git rev-parse a65fedf39aefe402d3bb6e24df4d4f5fe4547750
* a65fedf39aefe402d3bb6e24df4d4f5fe4547750
*
* $ git rev-parse heads/a65fedf39aefe402d3bb6e24df4d4f5fe4547750
* 4a202b346bb0fb0db7eff3cffeb3c70babbd2045
*/
void test_refs_revparse__try_to_retrieve_sha_before_branch(void)
{
git_repository *repo;
git_reference *branch;
git_object *target;
char sha[GIT_OID_HEXSZ + 1];
repo = cl_git_sandbox_init("testrepo.git");
test_object_inrepo("a65fedf39aefe402d3bb6e24df4d4f5fe4547750", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", repo);
cl_git_pass(git_revparse_single(&target, repo, "HEAD~3"));
cl_git_pass(git_branch_create(&branch, repo, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", (git_commit *)target, 0));
git_oid_tostr(sha, GIT_OID_HEXSZ + 1, git_object_id(target));
test_object_inrepo("a65fedf39aefe402d3bb6e24df4d4f5fe4547750", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", repo);
test_object_inrepo("heads/a65fedf39aefe402d3bb6e24df4d4f5fe4547750", sha, repo);
git_reference_free(branch);
git_object_free(target);
cl_git_sandbox_cleanup();
}
/**
* $ git rev-parse c47800
* c47800c7266a2be04c571c04d5a6614691ea99bd
*
* $ git rev-parse HEAD~3
* 4a202b346bb0fb0db7eff3cffeb3c70babbd2045
*
* $ git branch c47800 HEAD~3
*
* $ git rev-parse c47800
* 4a202b346bb0fb0db7eff3cffeb3c70babbd2045
*/
void test_refs_revparse__try_to_retrieve_branch_before_abbrev_sha(void)
{
git_repository *repo;
git_reference *branch;
git_object *target;
char sha[GIT_OID_HEXSZ + 1];
repo = cl_git_sandbox_init("testrepo.git");
test_object_inrepo("c47800", "c47800c7266a2be04c571c04d5a6614691ea99bd", repo);
cl_git_pass(git_revparse_single(&target, repo, "HEAD~3"));
cl_git_pass(git_branch_create(&branch, repo, "c47800", (git_commit *)target, 0));
git_oid_tostr(sha, GIT_OID_HEXSZ + 1, git_object_id(target));
test_object_inrepo("c47800", sha, repo);
git_reference_free(branch);
git_object_free(target);
cl_git_sandbox_cleanup();
}