}
/* returns a static buffer */
-static const char* get_rev_name(struct object *o)
+static const char *get_rev_name(const struct object *o)
{
static char buffer[1024];
struct rev_name *n;
struct commit *c;
if (o->type != OBJ_COMMIT)
- return "undefined";
+ return NULL;
c = (struct commit *) o;
n = c->util;
if (!n)
- return "undefined";
+ return NULL;
if (!n->generation)
return n->tip_name;
}
}
+static void show_name(const struct object *obj,
+ const char *caller_name,
+ int always, int allow_undefined, int name_only)
+{
+ const char *name;
+ const unsigned char *sha1 = obj->sha1;
+
+ if (!name_only)
+ printf("%s ", caller_name ? caller_name : sha1_to_hex(sha1));
+ name = get_rev_name(obj);
+ if (name)
+ printf("%s\n", name);
+ else if (allow_undefined)
+ printf("undefined\n");
+ else if (always)
+ printf("%s\n", find_unique_abbrev(sha1, DEFAULT_ABBREV));
+ else
+ die("cannot describe '%s'", sha1_to_hex(sha1));
+}
+
static char const * const name_rev_usage[] = {
- "git-name-rev [options] ( --all | --stdin | <commit>... )",
+ "git name-rev [options] ( --all | --stdin | <commit>... )",
NULL
};
+static void name_rev_line(char *p, struct name_ref_data *data)
+{
+ int forty = 0;
+ char *p_start;
+ for (p_start = p; *p; p++) {
+#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
+ if (!ishex(*p))
+ forty = 0;
+ else if (++forty == 40 &&
+ !ishex(*(p+1))) {
+ unsigned char sha1[40];
+ const char *name = NULL;
+ char c = *(p+1);
+ int p_len = p - p_start + 1;
+
+ forty = 0;
+
+ *(p+1) = 0;
+ if (!get_sha1(p - 39, sha1)) {
+ struct object *o =
+ lookup_object(sha1);
+ if (o)
+ name = get_rev_name(o);
+ }
+ *(p+1) = c;
+
+ if (!name)
+ continue;
+
+ if (data->name_only)
+ printf("%.*s%s", p_len - 40, p_start, name);
+ else
+ printf("%.*s (%s)", p_len, p_start, name);
+ p_start = p + 1;
+ }
+ }
+
+ /* flush */
+ if (p_start != p)
+ fwrite(p_start, p - p_start, 1, stdout);
+}
+
int cmd_name_rev(int argc, const char **argv, const char *prefix)
{
struct object_array revs = { 0, 0, NULL };
- int all = 0, transform_stdin = 0;
+ int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0;
struct name_ref_data data = { 0, 0, NULL };
struct option opts[] = {
OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"),
OPT_GROUP(""),
OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"),
OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"),
+ OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"),
+ OPT_BOOLEAN(0, "always", &always,
+ "show abbreviated commit object as fallback"),
OPT_END(),
};
- git_config(git_default_config);
+ git_config(git_default_config, NULL);
argc = parse_options(argc, argv, opts, name_rev_usage, 0);
if (!!all + !!transform_stdin + !!argc > 1) {
error("Specify either a list, or --all, not both!");
if (transform_stdin) {
char buffer[2048];
- char *p, *p_start;
while (!feof(stdin)) {
- int forty = 0;
- p = fgets(buffer, sizeof(buffer), stdin);
+ char *p = fgets(buffer, sizeof(buffer), stdin);
if (!p)
break;
-
- for (p_start = p; *p; p++) {
-#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
- if (!ishex(*p))
- forty = 0;
- else if (++forty == 40 &&
- !ishex(*(p+1))) {
- unsigned char sha1[40];
- const char *name = "undefined";
- char c = *(p+1);
-
- forty = 0;
-
- *(p+1) = 0;
- if (!get_sha1(p - 39, sha1)) {
- struct object *o =
- lookup_object(sha1);
- if (o)
- name = get_rev_name(o);
- }
- *(p+1) = c;
-
- if (!strcmp(name, "undefined"))
- continue;
-
- fwrite(p_start, p - p_start + 1, 1,
- stdout);
- printf(" (%s)", name);
- p_start = p + 1;
- }
- }
-
- /* flush */
- if (p_start != p)
- fwrite(p_start, p - p_start, 1, stdout);
+ name_rev_line(p, &data);
}
} else if (all) {
int i, max;
max = get_max_object_index();
for (i = 0; i < max; i++) {
- struct object * obj = get_indexed_object(i);
+ struct object *obj = get_indexed_object(i);
if (!obj)
continue;
- if (!data.name_only)
- printf("%s ", sha1_to_hex(obj->sha1));
- printf("%s\n", get_rev_name(obj));
+ show_name(obj, NULL,
+ always, allow_undefined, data.name_only);
}
} else {
int i;
- for (i = 0; i < revs.nr; i++) {
- if (!data.name_only)
- printf("%s ", revs.objects[i].name);
- printf("%s\n", get_rev_name(revs.objects[i].item));
- }
+ for (i = 0; i < revs.nr; i++)
+ show_name(revs.objects[i].item, revs.objects[i].name,
+ always, allow_undefined, data.name_only);
}
return 0;