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/*
* GIT - The information manager from hell
*/
#include "cache.h"
#include "refs.h"
#include "builtin.h"
#include "strbuf.h"
/*
* Replace each run of adjacent slashes in src with a single slash,
* and write the result to dst.
*
* This function is similar to normalize_path_copy(), but stripped down
* to meet check_ref_format's simpler needs.
*/
static void collapse_slashes(char *dst, const char *src)
{
char ch;
char prev = '\0';
while ((ch = *src++) != '\0') {
if (prev == '/' && ch == prev)
continue;
*dst++ = ch;
prev = ch;
}
*dst = '\0';
}
int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
{
if (argc == 3 && !strcmp(argv[1], "--branch")) {
struct strbuf sb = STRBUF_INIT;
if (strbuf_check_branch_ref(&sb, argv[2]))
die("'%s' is not a valid branch name", argv[2]);
printf("%s\n", sb.buf + 11);
exit(0);
}
if (argc == 3 && !strcmp(argv[1], "--print")) {
char *refname = xmalloc(strlen(argv[2]) + 1);
if (check_ref_format(argv[2]))
exit(1);
collapse_slashes(refname, argv[2]);
printf("%s\n", refname);
exit(0);
}
if (argc != 2)
usage("git check-ref-format refname");
return !!check_ref_format(argv[1]);
}
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