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/*
* GIT - The information manager from hell
*/
#include "cache.h"
#include "refs.h"
#include "builtin.h"
#include "strbuf.h"
static const char builtin_check_ref_format_usage[] =
"git check-ref-format [--normalize] [options] <refname>\n"
" or: git check-ref-format --branch <branchname-shorthand>";
/*
* Return a copy of refname but with leading slashes removed and runs
* of adjacent slashes replaced with single slashes.
*
* This function is similar to normalize_path_copy(), but stripped down
* to meet check_ref_format's simpler needs.
*/
static char *collapse_slashes(const char *refname)
{
char *ret = xmalloc(strlen(refname) + 1);
char ch;
char prev = '/';
char *cp = ret;
while ((ch = *refname++) != '\0') {
if (prev == '/' && ch == prev)
continue;
*cp++ = ch;
prev = ch;
}
*cp = '\0';
return ret;
}
static int check_ref_format_branch(const char *arg)
{
struct strbuf sb = STRBUF_INIT;
int nongit;
setup_git_directory_gently(&nongit);
if (strbuf_check_branch_ref(&sb, arg))
die("'%s' is not a valid branch name", arg);
printf("%s\n", sb.buf + 11);
return 0;
}
int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
{
int i;
int normalize = 0;
int flags = 0;
const char *refname;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(builtin_check_ref_format_usage);
if (argc == 3 && !strcmp(argv[1], "--branch"))
return check_ref_format_branch(argv[2]);
for (i = 1; i < argc && argv[i][0] == '-'; i++) {
if (!strcmp(argv[i], "--normalize") || !strcmp(argv[i], "--print"))
normalize = 1;
else if (!strcmp(argv[i], "--allow-onelevel"))
flags |= REFNAME_ALLOW_ONELEVEL;
else if (!strcmp(argv[i], "--no-allow-onelevel"))
flags &= ~REFNAME_ALLOW_ONELEVEL;
else if (!strcmp(argv[i], "--refspec-pattern"))
flags |= REFNAME_REFSPEC_PATTERN;
else
usage(builtin_check_ref_format_usage);
}
if (! (i == argc - 1))
usage(builtin_check_ref_format_usage);
refname = argv[i];
if (normalize)
refname = collapse_slashes(refname);
if (check_refname_format(refname, flags))
return 1;
if (normalize)
printf("%s\n", refname);
return 0;
}
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