mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-06 07:47:18 +00:00
130 lines
2.7 KiB
C
130 lines
2.7 KiB
C
/*
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* Copyright (C) 2009-2012 the libgit2 contributors
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#include "git2/errors.h"
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#include "common.h"
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#include "refspec.h"
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#include "util.h"
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#include "posix.h"
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int git_refspec_parse(git_refspec *refspec, const char *str)
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{
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char *delim;
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memset(refspec, 0x0, sizeof(git_refspec));
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if (*str == '+') {
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refspec->force = 1;
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str++;
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}
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delim = strchr(str, ':');
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if (delim == NULL) {
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refspec->src = git__strdup(str);
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GITERR_CHECK_ALLOC(refspec->src);
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return 0;
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}
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refspec->src = git__strndup(str, delim - str);
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GITERR_CHECK_ALLOC(refspec->src);
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refspec->dst = git__strdup(delim + 1);
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if (refspec->dst == NULL) {
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git__free(refspec->src);
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refspec->src = NULL;
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return -1;
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}
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return 0;
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}
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const char *git_refspec_src(const git_refspec *refspec)
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{
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return refspec == NULL ? NULL : refspec->src;
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}
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const char *git_refspec_dst(const git_refspec *refspec)
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{
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return refspec == NULL ? NULL : refspec->dst;
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}
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int git_refspec_force(const git_refspec *refspec)
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{
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assert(refspec);
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return refspec->force;
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}
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int git_refspec_src_matches(const git_refspec *refspec, const char *refname)
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{
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if (refspec == NULL || refspec->src == NULL)
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return false;
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return (p_fnmatch(refspec->src, refname, 0) == 0);
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}
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int git_refspec_transform(char *out, size_t outlen, const git_refspec *spec, const char *name)
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{
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size_t baselen, namelen;
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baselen = strlen(spec->dst);
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if (outlen <= baselen) {
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giterr_set(GITERR_INVALID, "Reference name too long");
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return GIT_EBUFS;
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}
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/*
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* No '*' at the end means that it's mapped to one specific local
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* branch, so no actual transformation is needed.
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*/
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if (spec->dst[baselen - 1] != '*') {
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memcpy(out, spec->dst, baselen + 1); /* include '\0' */
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return 0;
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}
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/* There's a '*' at the end, so remove its length */
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baselen--;
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/* skip the prefix, -1 is for the '*' */
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name += strlen(spec->src) - 1;
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namelen = strlen(name);
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if (outlen <= baselen + namelen) {
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giterr_set(GITERR_INVALID, "Reference name too long");
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return GIT_EBUFS;
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}
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memcpy(out, spec->dst, baselen);
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memcpy(out + baselen, name, namelen + 1);
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return 0;
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}
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int git_refspec_transform_r(git_buf *out, const git_refspec *spec, const char *name)
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{
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if (git_buf_sets(out, spec->dst) < 0)
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return -1;
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/*
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* No '*' at the end means that it's mapped to one specific local
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* branch, so no actual transformation is needed.
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*/
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if (git_buf_len(out) > 0 && out->ptr[git_buf_len(out) - 1] != '*')
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return 0;
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git_buf_truncate(out, git_buf_len(out) - 1); /* remove trailing '*' */
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git_buf_puts(out, name + strlen(spec->src) - 1);
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if (git_buf_oom(out))
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return -1;
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return 0;
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}
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