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refspec: introduce git_refspec_transform_l()

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This commit is contained in:
nulltoken 2012-09-26 19:15:11 +02:00
parent 70edc1b0fc
commit 3e012fca77
2 changed files with 25 additions and 4 deletions
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18
src/refspec.c
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@ -194,20 +194,20 @@ int git_refspec_transform(char *out, size_t outlen, const git_refspec *spec, con
return 0; return 0;
} }
int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name) static int refspec_transform(git_buf *out, const char *from, const char *to, const char *name)
{ {
if (git_buf_sets(out, spec->dst) < 0) if (git_buf_sets(out, to) < 0)
return -1; return -1;
/* /*
* No '*' at the end means that it's mapped to one specific local * No '*' at the end means that it's mapped to one specific
* branch, so no actual transformation is needed. * branch, so no actual transformation is needed.
*/ */
if (git_buf_len(out) > 0 && out->ptr[git_buf_len(out) - 1] != '*') if (git_buf_len(out) > 0 && out->ptr[git_buf_len(out) - 1] != '*')
return 0; return 0;
git_buf_truncate(out, git_buf_len(out) - 1); /* remove trailing '*' */ git_buf_truncate(out, git_buf_len(out) - 1); /* remove trailing '*' */
git_buf_puts(out, name + strlen(spec->src) - 1); git_buf_puts(out, name + strlen(from) - 1);
if (git_buf_oom(out)) if (git_buf_oom(out))
return -1; return -1;
@ -215,3 +215,13 @@ int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *n
return 0; return 0;
} }
int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name)
{
return refspec_transform(out, spec->src, spec->dst, name);
}
int git_refspec_transform_l(git_buf *out, const git_refspec *spec, const char *name)
{
return refspec_transform(out, spec->dst, spec->src, name);
}

11
src/refspec.h
View File

@ -40,4 +40,15 @@ void git_refspec__free(git_refspec *refspec);
*/ */
int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name); int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name);
/**
* Transform a reference from its target following the refspec's rules,
* and writes the results into a git_buf.
*
* @param out where to store the source name
* @param spec the refspec
* @param name the name of the reference to transform
* @return 0 or error if buffer allocation fails
*/
int git_refspec_transform_l(git_buf *out, const git_refspec *spec, const char *name);
#endif #endif