mirror of
https://github.com/git/git.git
synced 2024-11-15 21:53:44 +01:00
cc44c7655f
This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily. Leftover from this will be fixed in a separate step, including
idiotic conversions like
if (!strncmp("foo", arg, 3))
=>
if (!(-prefixcmp(arg, "foo")))
This was done by using this script in px.perl
#!/usr/bin/perl -i.bak -p
if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
}
if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
}
and running:
$ git grep -l strncmp -- '*.c' | xargs perl px.perl
Signed-off-by: Junio C Hamano <junkio@cox.net>
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
#include "cache.h"
|
|
#include "refs.h"
|
|
#include "object.h"
|
|
#include "tag.h"
|
|
|
|
static const char builtin_pack_refs_usage[] =
|
|
"git-pack-refs [--all] [--prune | --no-prune]";
|
|
|
|
struct ref_to_prune {
|
|
struct ref_to_prune *next;
|
|
unsigned char sha1[20];
|
|
char name[FLEX_ARRAY];
|
|
};
|
|
|
|
struct pack_refs_cb_data {
|
|
int prune;
|
|
int all;
|
|
struct ref_to_prune *ref_to_prune;
|
|
FILE *refs_file;
|
|
};
|
|
|
|
static int do_not_prune(int flags)
|
|
{
|
|
/* If it is already packed or if it is a symref,
|
|
* do not prune it.
|
|
*/
|
|
return (flags & (REF_ISSYMREF|REF_ISPACKED));
|
|
}
|
|
|
|
static int handle_one_ref(const char *path, const unsigned char *sha1,
|
|
int flags, void *cb_data)
|
|
{
|
|
struct pack_refs_cb_data *cb = cb_data;
|
|
int is_tag_ref;
|
|
|
|
/* Do not pack the symbolic refs */
|
|
if ((flags & REF_ISSYMREF))
|
|
return 0;
|
|
is_tag_ref = !prefixcmp(path, "refs/tags/");
|
|
|
|
/* ALWAYS pack refs that were already packed or are tags */
|
|
if (!cb->all && !is_tag_ref && !(flags & REF_ISPACKED))
|
|
return 0;
|
|
|
|
fprintf(cb->refs_file, "%s %s\n", sha1_to_hex(sha1), path);
|
|
if (is_tag_ref) {
|
|
struct object *o = parse_object(sha1);
|
|
if (o->type == OBJ_TAG) {
|
|
o = deref_tag(o, path, 0);
|
|
if (o)
|
|
fprintf(cb->refs_file, "^%s\n",
|
|
sha1_to_hex(o->sha1));
|
|
}
|
|
}
|
|
|
|
if (cb->prune && !do_not_prune(flags)) {
|
|
int namelen = strlen(path) + 1;
|
|
struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
|
|
hashcpy(n->sha1, sha1);
|
|
strcpy(n->name, path);
|
|
n->next = cb->ref_to_prune;
|
|
cb->ref_to_prune = n;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* make sure nobody touched the ref, and unlink */
|
|
static void prune_ref(struct ref_to_prune *r)
|
|
{
|
|
struct ref_lock *lock = lock_ref_sha1(r->name + 5, r->sha1);
|
|
|
|
if (lock) {
|
|
unlink(git_path("%s", r->name));
|
|
unlock_ref(lock);
|
|
}
|
|
}
|
|
|
|
static void prune_refs(struct ref_to_prune *r)
|
|
{
|
|
while (r) {
|
|
prune_ref(r);
|
|
r = r->next;
|
|
}
|
|
}
|
|
|
|
static struct lock_file packed;
|
|
|
|
int cmd_pack_refs(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int fd, i;
|
|
struct pack_refs_cb_data cbdata;
|
|
|
|
memset(&cbdata, 0, sizeof(cbdata));
|
|
|
|
cbdata.prune = 1;
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (!strcmp(arg, "--prune")) {
|
|
cbdata.prune = 1; /* now the default */
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--no-prune")) {
|
|
cbdata.prune = 0;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--all")) {
|
|
cbdata.all = 1;
|
|
continue;
|
|
}
|
|
/* perhaps other parameters later... */
|
|
break;
|
|
}
|
|
if (i != argc)
|
|
usage(builtin_pack_refs_usage);
|
|
|
|
fd = hold_lock_file_for_update(&packed, git_path("packed-refs"), 1);
|
|
cbdata.refs_file = fdopen(fd, "w");
|
|
if (!cbdata.refs_file)
|
|
die("unable to create ref-pack file structure (%s)",
|
|
strerror(errno));
|
|
|
|
/* perhaps other traits later as well */
|
|
fprintf(cbdata.refs_file, "# pack-refs with: peeled \n");
|
|
|
|
for_each_ref(handle_one_ref, &cbdata);
|
|
fflush(cbdata.refs_file);
|
|
fsync(fd);
|
|
fclose(cbdata.refs_file);
|
|
if (commit_lock_file(&packed) < 0)
|
|
die("unable to overwrite old ref-pack file (%s)", strerror(errno));
|
|
if (cbdata.prune)
|
|
prune_refs(cbdata.ref_to_prune);
|
|
return 0;
|
|
}
|