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authorPierre Habouzit <madcoder@debian.org>2007-12-24 11:18:22 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-12-26 23:59:31 (GMT)
commita2cf9f445e9074df1a45f5179cef0d4bb8647dd8 (patch)
tree77e5e5b8af0a862303c046a3becabbba62a3e6b3
parent30ffa60377acb443033045a42ffecefdb0921ebb (diff)
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git-name-rev: add a --(no-)undefined option.
Rework get_rev_name to return NULL rather than "undefined" when a reference is undefined. If --undefined is passed (default), git-name-rev prints "undefined" for the name, else it die()s. Make git-describe use --no-undefined when calling git-name-rev so that --contains behavior matches the standard git-describe one. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin-describe.c3
-rw-r--r--builtin-name-rev.c34
2 files changed, 26 insertions, 11 deletions
diff --git a/builtin-describe.c b/builtin-describe.c
index 18eab47..3428483 100644
--- a/builtin-describe.c
+++ b/builtin-describe.c
@@ -271,10 +271,11 @@ int cmd_describe(int argc, const char **argv, const char *prefix)
save_commit_buffer = 0;
if (contains) {
- const char **args = xmalloc((5 + argc) * sizeof(char*));
+ const char **args = xmalloc((6 + argc) * sizeof(char*));
int i = 0;
args[i++] = "name-rev";
args[i++] = "--name-only";
+ args[i++] = "--no-undefined";
if (!all) {
args[i++] = "--tags";
if (pattern) {
diff --git a/builtin-name-rev.c b/builtin-name-rev.c
index a0c89a8..f22c8b5 100644
--- a/builtin-name-rev.c
+++ b/builtin-name-rev.c
@@ -125,18 +125,18 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void
}
/* returns a static buffer */
-static const char* get_rev_name(struct object *o)
+static const char *get_rev_name(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;
@@ -159,7 +159,7 @@ static char const * const name_rev_usage[] = {
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;
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)"),
@@ -169,6 +169,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix)
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_END(),
};
@@ -226,7 +227,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix)
else if (++forty == 40 &&
!ishex(*(p+1))) {
unsigned char sha1[40];
- const char *name = "undefined";
+ const char *name = NULL;
char c = *(p+1);
forty = 0;
@@ -240,11 +241,10 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix)
}
*(p+1) = c;
- if (!strcmp(name, "undefined"))
+ if (!name)
continue;
- fwrite(p_start, p - p_start + 1, 1,
- stdout);
+ fwrite(p_start, p - p_start + 1, 1, stdout);
printf(" (%s)", name);
p_start = p + 1;
}
@@ -260,18 +260,32 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix)
max = get_max_object_index();
for (i = 0; i < max; i++) {
struct object * obj = get_indexed_object(i);
+ const char *name;
if (!obj)
continue;
if (!data.name_only)
printf("%s ", sha1_to_hex(obj->sha1));
- printf("%s\n", get_rev_name(obj));
+ name = get_rev_name(obj);
+ if (name)
+ printf("%s\n", name);
+ else if (allow_undefined)
+ printf("undefined\n");
+ else
+ die("cannot describe '%s'", sha1_to_hex(obj->sha1));
}
} else {
int i;
for (i = 0; i < revs.nr; i++) {
+ const char *name;
if (!data.name_only)
printf("%s ", revs.objects[i].name);
- printf("%s\n", get_rev_name(revs.objects[i].item));
+ name = get_rev_name(revs.objects[i].item);
+ if (name)
+ printf("%s\n", name);
+ else if (allow_undefined)
+ printf("undefined\n");
+ else
+ die("cannot describe '%s'", sha1_to_hex(revs.objects[i].item->sha1));
}
}