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/*
* Builtin "git replace"
*
* Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org>
*
* Based on builtin-tag.c by Kristian Høgsberg <krh@redhat.com>
* and Carlos Rica <jasampler@gmail.com> that was itself based on
* git-tag.sh and mktag.c by Linus Torvalds.
*/
#include "cache.h"
#include "builtin.h"
#include "refs.h"
#include "parse-options.h"
static const char * const git_replace_usage[] = {
"git replace -d <object>...",
"git replace -l [<pattern>]",
NULL
};
static int show_reference(const char *refname, const unsigned char *sha1,
int flag, void *cb_data)
{
const char *pattern = cb_data;
if (!fnmatch(pattern, refname, 0))
printf("%s\n", refname);
return 0;
}
static int list_replace_refs(const char *pattern)
{
if (pattern == NULL)
pattern = "*";
for_each_replace_ref(show_reference, (void *) pattern);
return 0;
}
typedef int (*each_replace_name_fn)(const char *name, const char *ref,
const unsigned char *sha1);
static int for_each_replace_name(const char **argv, each_replace_name_fn fn)
{
const char **p;
char ref[PATH_MAX];
int had_error = 0;
unsigned char sha1[20];
for (p = argv; *p; p++) {
if (snprintf(ref, sizeof(ref), "refs/replace/%s", *p)
>= sizeof(ref)) {
error("replace ref name too long: %.*s...", 50, *p);
had_error = 1;
continue;
}
if (!resolve_ref(ref, sha1, 1, NULL)) {
error("replace ref '%s' not found.", *p);
had_error = 1;
continue;
}
if (fn(*p, ref, sha1))
had_error = 1;
}
return had_error;
}
static int delete_replace_ref(const char *name, const char *ref,
const unsigned char *sha1)
{
if (delete_ref(ref, sha1, 0))
return 1;
printf("Deleted replace ref '%s'\n", name);
return 0;
}
int cmd_replace(int argc, const char **argv, const char *prefix)
{
int list = 0, delete = 0;
struct option options[] = {
OPT_BOOLEAN('l', NULL, &list, "list replace refs"),
OPT_BOOLEAN('d', NULL, &delete, "delete replace refs"),
OPT_END()
};
argc = parse_options(argc, argv, options, git_replace_usage, 0);
if (list && delete)
usage_with_options(git_replace_usage, options);
if (delete) {
if (argc < 1)
usage_with_options(git_replace_usage, options);
return for_each_replace_name(argv, delete_replace_ref);
}
/* List refs, even if "list" is not set */
if (argc > 1)
usage_with_options(git_replace_usage, options);
return list_replace_refs(argv[0]);
}
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