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/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "git2/errors.h"
#include "common.h"
#include "refspec.h"
#include "util.h"
#include "posix.h"
int git_refspec_parse(git_refspec *refspec, const char *str)
{
char *delim;
memset(refspec, 0x0, sizeof(git_refspec));
if (*str == '+') {
refspec->force = 1;
str++;
}
delim = strchr(str, ':');
if (delim == NULL) {
refspec->src = git__strdup(str);
GITERR_CHECK_ALLOC(refspec->src);
return 0;
}
refspec->src = git__strndup(str, delim - str);
GITERR_CHECK_ALLOC(refspec->src);
refspec->dst = git__strdup(delim + 1);
if (refspec->dst == NULL) {
git__free(refspec->src);
refspec->src = NULL;
return -1;
}
return 0;
}
const char *git_refspec_src(const git_refspec *refspec)
{
return refspec == NULL ? NULL : refspec->src;
}
const char *git_refspec_dst(const git_refspec *refspec)
{
return refspec == NULL ? NULL : refspec->dst;
}
int git_refspec_force(const git_refspec *refspec)
{
assert(refspec);
return refspec->force;
}
int git_refspec_src_matches(const git_refspec *refspec, const char *refname)
{
if (refspec == NULL || refspec->src == NULL)
return false;
return (p_fnmatch(refspec->src, refname, 0) == 0);
}
int git_refspec_transform(char *out, size_t outlen, const git_refspec *spec, const char *name)
{
size_t baselen, namelen;
baselen = strlen(spec->dst);
if (outlen <= baselen) {
giterr_set(GITERR_INVALID, "Reference name too long");
return GIT_EBUFS;
}
/*
* No '*' at the end means that it's mapped to one specific local
* branch, so no actual transformation is needed.
*/
if (spec->dst[baselen - 1] != '*') {
memcpy(out, spec->dst, baselen + 1); /* include '\0' */
return 0;
}
/* There's a '*' at the end, so remove its length */
baselen--;
/* skip the prefix, -1 is for the '*' */
name += strlen(spec->src) - 1;
namelen = strlen(name);
if (outlen <= baselen + namelen) {
giterr_set(GITERR_INVALID, "Reference name too long");
return GIT_EBUFS;
}
memcpy(out, spec->dst, baselen);
memcpy(out + baselen, name, namelen + 1);
return 0;
}
int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name)
{
if (git_buf_sets(out, spec->dst) < 0)
return -1;
/*
* No '*' at the end means that it's mapped to one specific local
* branch, so no actual transformation is needed.
*/
if (git_buf_len(out) > 0 && out->ptr[git_buf_len(out) - 1] != '*')
return 0;
git_buf_truncate(out, git_buf_len(out) - 1); /* remove trailing '*' */
git_buf_puts(out, name + strlen(spec->src) - 1);
if (git_buf_oom(out))
return -1;
return 0;
}
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