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-rw-r--r--builtin/replace.c102
1 files changed, 84 insertions, 18 deletions
diff --git a/builtin/replace.c b/builtin/replace.c
index e3aaf70203..2336325ce3 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -3,7 +3,7 @@
*
* Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org>
*
- * Based on builtin-tag.c by Kristian Høgsberg <krh@redhat.com>
+ * 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.
*/
@@ -16,27 +16,69 @@
static const char * const git_replace_usage[] = {
N_("git replace [-f] <object> <replacement>"),
N_("git replace -d <object>..."),
- N_("git replace -l [<pattern>]"),
+ N_("git replace [--format=<format>] [-l [<pattern>]]"),
NULL
};
+enum replace_format {
+ REPLACE_FORMAT_SHORT,
+ REPLACE_FORMAT_MEDIUM,
+ REPLACE_FORMAT_LONG
+};
+
+struct show_data {
+ const char *pattern;
+ enum replace_format format;
+};
+
static int show_reference(const char *refname, const unsigned char *sha1,
int flag, void *cb_data)
{
- const char *pattern = cb_data;
+ struct show_data *data = cb_data;
- if (!fnmatch(pattern, refname, 0))
- printf("%s\n", refname);
+ if (!fnmatch(data->pattern, refname, 0)) {
+ if (data->format == REPLACE_FORMAT_SHORT)
+ printf("%s\n", refname);
+ else if (data->format == REPLACE_FORMAT_MEDIUM)
+ printf("%s -> %s\n", refname, sha1_to_hex(sha1));
+ else { /* data->format == REPLACE_FORMAT_LONG */
+ unsigned char object[20];
+ enum object_type obj_type, repl_type;
+
+ if (get_sha1(refname, object))
+ return error("Failed to resolve '%s' as a valid ref.", refname);
+
+ obj_type = sha1_object_info(object, NULL);
+ repl_type = sha1_object_info(sha1, NULL);
+
+ printf("%s (%s) -> %s (%s)\n", refname, typename(obj_type),
+ sha1_to_hex(sha1), typename(repl_type));
+ }
+ }
return 0;
}
-static int list_replace_refs(const char *pattern)
+static int list_replace_refs(const char *pattern, const char *format)
{
+ struct show_data data;
+
if (pattern == NULL)
pattern = "*";
+ data.pattern = pattern;
- for_each_replace_ref(show_reference, (void *) pattern);
+ if (format == NULL || *format == '\0' || !strcmp(format, "short"))
+ data.format = REPLACE_FORMAT_SHORT;
+ else if (!strcmp(format, "medium"))
+ data.format = REPLACE_FORMAT_MEDIUM;
+ else if (!strcmp(format, "long"))
+ data.format = REPLACE_FORMAT_LONG;
+ else
+ die("invalid replace format '%s'\n"
+ "valid formats are 'short', 'medium' and 'long'\n",
+ format);
+
+ for_each_replace_ref(show_reference, (void *) &data);
return 0;
}
@@ -46,24 +88,27 @@ typedef int (*each_replace_name_fn)(const char *name, const char *ref,
static int for_each_replace_name(const char **argv, each_replace_name_fn fn)
{
- const char **p;
+ const char **p, *full_hex;
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);
+ if (get_sha1(*p, sha1)) {
+ error("Failed to resolve '%s' as a valid ref.", *p);
had_error = 1;
continue;
}
+ full_hex = sha1_to_hex(sha1);
+ snprintf(ref, sizeof(ref), "refs/replace/%s", full_hex);
+ /* read_ref() may reuse the buffer */
+ full_hex = ref + strlen("refs/replace/");
if (read_ref(ref, sha1)) {
- error("replace ref '%s' not found.", *p);
+ error("replace ref '%s' not found.", full_hex);
had_error = 1;
continue;
}
- if (fn(*p, ref, sha1))
+ if (fn(full_hex, ref, sha1))
had_error = 1;
}
return had_error;
@@ -82,6 +127,7 @@ static int replace_object(const char *object_ref, const char *replace_ref,
int force)
{
unsigned char object[20], prev[20], repl[20];
+ enum object_type obj_type, repl_type;
char ref[PATH_MAX];
struct ref_lock *lock;
@@ -97,12 +143,21 @@ static int replace_object(const char *object_ref, const char *replace_ref,
if (check_refname_format(ref, 0))
die("'%s' is not a valid ref name.", ref);
+ obj_type = sha1_object_info(object, NULL);
+ repl_type = sha1_object_info(repl, NULL);
+ if (!force && obj_type != repl_type)
+ die("Objects must be of the same type.\n"
+ "'%s' points to a replaced object of type '%s'\n"
+ "while '%s' points to a replacement object of type '%s'.",
+ object_ref, typename(obj_type),
+ replace_ref, typename(repl_type));
+
if (read_ref(ref, prev))
hashclr(prev);
else if (!force)
die("replace ref '%s' already exists", ref);
- lock = lock_any_ref_for_update(ref, prev, 0);
+ lock = lock_any_ref_for_update(ref, prev, 0, NULL);
if (!lock)
die("%s: cannot lock the ref", ref);
if (write_ref_sha1(lock, repl, NULL) < 0)
@@ -114,19 +169,27 @@ static int replace_object(const char *object_ref, const char *replace_ref,
int cmd_replace(int argc, const char **argv, const char *prefix)
{
int list = 0, delete = 0, force = 0;
+ const char *format = NULL;
struct option options[] = {
- OPT_BOOLEAN('l', NULL, &list, N_("list replace refs")),
- OPT_BOOLEAN('d', NULL, &delete, N_("delete replace refs")),
- OPT_BOOLEAN('f', NULL, &force, N_("replace the ref if it exists")),
+ OPT_BOOL('l', "list", &list, N_("list replace refs")),
+ OPT_BOOL('d', "delete", &delete, N_("delete replace refs")),
+ OPT_BOOL('f', "force", &force, N_("replace the ref if it exists")),
+ OPT_STRING(0, "format", &format, N_("format"), N_("use this format")),
OPT_END()
};
+ read_replace_refs = 0;
+
argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0);
if (list && delete)
usage_msg_opt("-l and -d cannot be used together",
git_replace_usage, options);
+ if (format && delete)
+ usage_msg_opt("--format and -d cannot be used together",
+ git_replace_usage, options);
+
if (force && (list || delete))
usage_msg_opt("-f cannot be used with -d or -l",
git_replace_usage, options);
@@ -144,6 +207,9 @@ int cmd_replace(int argc, const char **argv, const char *prefix)
if (argc != 2)
usage_msg_opt("bad number of arguments",
git_replace_usage, options);
+ if (format)
+ usage_msg_opt("--format cannot be used when not listing",
+ git_replace_usage, options);
return replace_object(argv[0], argv[1], force);
}
@@ -155,5 +221,5 @@ int cmd_replace(int argc, const char **argv, const char *prefix)
usage_msg_opt("-f needs some arguments",
git_replace_usage, options);
- return list_replace_refs(argv[0]);
+ return list_replace_refs(argv[0], format);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 13:51:50 +0000