Staging
v0.5.2
v0.5.2
https://github.com/git/git
Revision ee34518d629331dadd58b1a75294369d679eda8b authored by Johannes Schindelin on 16 December 2005, 01:40:25 UTC, committed by Junio C Hamano on 16 December 2005, 01:56:32 UTC
This makes git-check-ref-format fail for "HEAD". Since the check is only executed when creating refs, the existing symbolic ref is safe. Otherwise these commands, most likely are pilot errors, would do pretty funky stuff: git checkout -b HEAD git pull . other:HEAD Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 06d900c
Tip revision: ee34518d629331dadd58b1a75294369d679eda8b authored by Johannes Schindelin on 16 December 2005, 01:40:25 UTC
We do not like "HEAD" as a new branch name
We do not like "HEAD" as a new branch name
Tip revision: ee34518
name-rev.c
#include <stdlib.h>
#include "cache.h"
#include "commit.h"
#include "tag.h"
#include "refs.h"
static const char name_rev_usage[] =
"git-name-rev [--tags] ( --all | --stdin | commitish [commitish...] )\n";
typedef struct rev_name {
const char *tip_name;
int merge_traversals;
int generation;
} rev_name;
static long cutoff = LONG_MAX;
static void name_rev(struct commit *commit,
const char *tip_name, int merge_traversals, int generation,
int deref)
{
struct rev_name *name = (struct rev_name *)commit->object.util;
struct commit_list *parents;
int parent_number = 1;
if (!commit->object.parsed)
parse_commit(commit);
if (commit->date < cutoff)
return;
if (deref) {
char *new_name = xmalloc(strlen(tip_name)+3);
strcpy(new_name, tip_name);
strcat(new_name, "^0");
tip_name = new_name;
if (generation)
die("generation: %d, but deref?", generation);
}
if (name == NULL) {
name = xmalloc(sizeof(rev_name));
commit->object.util = name;
goto copy_data;
} else if (name->merge_traversals > merge_traversals ||
(name->merge_traversals == merge_traversals &&
name->generation > generation)) {
copy_data:
name->tip_name = tip_name;
name->merge_traversals = merge_traversals;
name->generation = generation;
} else
return;
for (parents = commit->parents;
parents;
parents = parents->next, parent_number++) {
if (parent_number > 1) {
char *new_name = xmalloc(strlen(tip_name)+8);
if (generation > 0)
sprintf(new_name, "%s~%d^%d", tip_name,
generation, parent_number);
else
sprintf(new_name, "%s^%d", tip_name, parent_number);
name_rev(parents->item, new_name,
merge_traversals + 1 , 0, 0);
} else {
name_rev(parents->item, tip_name, merge_traversals,
generation + 1, 0);
}
}
}
static int tags_only = 0;
static int name_ref(const char *path, const unsigned char *sha1)
{
struct object *o = parse_object(sha1);
int deref = 0;
if (tags_only && strncmp(path, "refs/tags/", 10))
return 0;
while (o && o->type == tag_type) {
struct tag *t = (struct tag *) o;
if (!t->tagged)
break; /* broken repository */
o = parse_object(t->tagged->sha1);
deref = 1;
}
if (o && o->type == commit_type) {
struct commit *commit = (struct commit *)o;
const char *p;
while ((p = strchr(path, '/')))
path = p+1;
name_rev(commit, strdup(path), 0, 0, deref);
}
return 0;
}
/* returns a static buffer */
static const char* get_rev_name(struct object *o)
{
static char buffer[1024];
struct rev_name *n = (struct rev_name *)o->util;
if (!n)
return "undefined";
if (!n->generation)
return n->tip_name;
snprintf(buffer, sizeof(buffer), "%s~%d", n->tip_name, n->generation);
return buffer;
}
int main(int argc, char **argv)
{
struct object_list *revs = NULL;
struct object_list **walker = &revs;
int as_is = 0, all = 0, transform_stdin = 0;
setup_git_directory();
if (argc < 2)
usage(name_rev_usage);
for (--argc, ++argv; argc; --argc, ++argv) {
unsigned char sha1[20];
struct object *o;
struct commit *commit;
if (!as_is && (*argv)[0] == '-') {
if (!strcmp(*argv, "--")) {
as_is = 1;
continue;
} else if (!strcmp(*argv, "--tags")) {
tags_only = 1;
continue;
} else if (!strcmp(*argv, "--all")) {
if (argc > 1)
die("Specify either a list, or --all, not both!");
all = 1;
cutoff = 0;
continue;
} else if (!strcmp(*argv, "--stdin")) {
if (argc > 1)
die("Specify either a list, or --stdin, not both!");
transform_stdin = 1;
cutoff = 0;
continue;
}
usage(name_rev_usage);
}
if (get_sha1(*argv, sha1)) {
fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
*argv);
continue;
}
o = deref_tag(parse_object(sha1), *argv, 0);
if (!o || o->type != commit_type) {
fprintf(stderr, "Could not get commit for %s. Skipping.\n",
*argv);
continue;
}
commit = (struct commit *)o;
if (cutoff > commit->date)
cutoff = commit->date;
object_list_append((struct object *)commit, walker);
(*walker)->name = *argv;
walker = &((*walker)->next);
}
for_each_ref(name_ref);
if (transform_stdin) {
char buffer[2048];
char *p, *p_start;
while (!feof(stdin)) {
int forty = 0;
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);
}
} else if (all) {
int i;
for (i = 0; i < nr_objs; i++)
printf("%s %s\n", sha1_to_hex(objs[i]->sha1),
get_rev_name(objs[i]));
} else
for ( ; revs; revs = revs->next)
printf("%s %s\n", revs->name, get_rev_name(revs->item));
return 0;
}
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