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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 [--print] [options] <refname>\n"
" or: git check-ref-format --branch <branchname-shorthand>";
/*
* Remove leading slashes and 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 = '/';
while ((ch = *src++) != '\0') {
if (prev == '/' && ch == prev)
continue;
*dst++ = ch;
prev = ch;
}
*dst = '\0';
}
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;
}
static void refname_format_print(const char *arg)
{
char *refname = xmalloc(strlen(arg) + 1);
collapse_slashes(refname, arg);
printf("%s\n", refname);
}
#define REFNAME_ALLOW_ONELEVEL 1
#define REFNAME_REFSPEC_PATTERN 2
int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
{
int i;
int print = 0;
int flags = 0;
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], "--print"))
print = 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);
switch (check_ref_format(argv[i])) {
case CHECK_REF_FORMAT_OK:
break;
case CHECK_REF_FORMAT_ERROR:
return 1;
case CHECK_REF_FORMAT_ONELEVEL:
if (!(flags & REFNAME_ALLOW_ONELEVEL))
return 1;
else
break;
case CHECK_REF_FORMAT_WILDCARD:
if (!(flags & REFNAME_REFSPEC_PATTERN))
return 1;
else
break;
default:
die("internal error: unexpected value from check_ref_format()");
}
if (print)
refname_format_print(argv[i]);
return 0;
}
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