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/*

* This file is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License, version 2,

* as published by the Free Software Foundation.

*

* In addition to the permissions in the GNU General Public License,

* the authors give you unlimited permission to link the compiled

* version of this file into combinations with other programs,

* and to distribute those combinations without any restriction

* coming from the use of this file. (The General Public License

* restrictions do apply in other respects; for example, they cover

* modification of the file, and distribution when not linked into

* a combined executable.)

*

* This file is distributed in the hope that it will be useful, but

* WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; see the file COPYING. If not, write to

* the Free Software Foundation, 51 Franklin Street, Fifth Floor,

* Boston, MA 02110-1301, USA.

*/

#include "git2/errors.h"

#include "common.h"

#include "refspec.h"

#include "util.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)

return git__throw(GIT_EOBJCORRUPTED, "Failed to parse refspec. No ':'");

refspec->src = git__strndup(str, delim - str);

if (refspec->src == NULL)

return GIT_ENOMEM;

refspec->dst = git__strdup(delim + 1);

if (refspec->dst == NULL) {

free(refspec->src);

refspec->src = NULL;

return GIT_ENOMEM;

}

return GIT_SUCCESS;

}

const char *git_refspec_src(const git_refspec *refspec)

{

return refspec->src;

}

const char *git_refspec_dst(const git_refspec *refspec)

{

return refspec->dst;

}

int git_refspec_src_match(const git_refspec *refspec, const char *refname)

{

return git__fnmatch(refspec->src, refname, 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)

return git__throw(GIT_EINVALIDREFNAME, "Reference name too long");

/*

* 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 GIT_SUCCESS;

}

/* 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)

return git__throw(GIT_EINVALIDREFNAME, "Reference name too long");

memcpy(out, spec->dst, baselen);

memcpy(out + baselen, name, namelen + 1);

return GIT_SUCCESS;

}