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authorDaniel Barkalow <barkalow@iabervon.org>2005-08-16 04:10:32 (GMT)
committerJunio C Hamano <junkio@cox.net>2005-08-16 19:09:33 (GMT)
commit08b1161697996b5478f726541c0d8a457abcc439 (patch)
tree1438a3adb136bfb89b40c502dfddeb3ee24348d3 /local-pull.c
parentc508df5edfe12b9df7dfea4d438c1dab2812b3e9 (diff)
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[PATCH] Support packs in local-pull
If it doesn't find an object, it looks for an index that contains it and uses the same methods on that instead. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'local-pull.c')
-rw-r--r--local-pull.c112
1 files changed, 91 insertions, 21 deletions
diff --git a/local-pull.c b/local-pull.c
index b715203..7e47ec0 100644
--- a/local-pull.c
+++ b/local-pull.c
@@ -15,34 +15,54 @@ void prefetch(unsigned char *sha1)
{
}
-int fetch(unsigned char *sha1)
+static struct packed_git *packs = NULL;
+
+void setup_index(unsigned char *sha1)
{
- static int object_name_start = -1;
- static char filename[PATH_MAX];
- char *hex = sha1_to_hex(sha1);
- const char *dest_filename = sha1_file_name(sha1);
+ struct packed_git *new_pack;
+ char filename[PATH_MAX];
+ strcpy(filename, path);
+ strcat(filename, "/objects/pack/pack-");
+ strcat(filename, sha1_to_hex(sha1));
+ strcat(filename, ".idx");
+ new_pack = parse_pack_index_file(sha1, filename);
+ new_pack->next = packs;
+ packs = new_pack;
+}
- if (object_name_start < 0) {
- strcpy(filename, path); /* e.g. git.git */
- strcat(filename, "/objects/");
- object_name_start = strlen(filename);
+int setup_indices()
+{
+ DIR *dir;
+ struct dirent *de;
+ char filename[PATH_MAX];
+ unsigned char sha1[20];
+ sprintf(filename, "%s/objects/pack/", path);
+ dir = opendir(filename);
+ while ((de = readdir(dir)) != NULL) {
+ int namelen = strlen(de->d_name);
+ if (namelen != 50 ||
+ strcmp(de->d_name + namelen - 5, ".pack"))
+ continue;
+ get_sha1_hex(sha1, de->d_name + 5);
+ setup_index(sha1);
}
- filename[object_name_start+0] = hex[0];
- filename[object_name_start+1] = hex[1];
- filename[object_name_start+2] = '/';
- strcpy(filename + object_name_start + 3, hex + 2);
+ return 0;
+}
+
+int copy_file(const char *source, const char *dest, const char *hex)
+{
if (use_link) {
- if (!link(filename, dest_filename)) {
+ if (!link(source, dest)) {
pull_say("link %s\n", hex);
return 0;
}
/* If we got ENOENT there is no point continuing. */
if (errno == ENOENT) {
- fprintf(stderr, "does not exist %s\n", filename);
+ fprintf(stderr, "does not exist %s\n", source);
return -1;
}
}
- if (use_symlink && !symlink(filename, dest_filename)) {
+ if (use_symlink && !symlink(source, dest)) {
pull_say("symlink %s\n", hex);
return 0;
}
@@ -50,25 +70,25 @@ int fetch(unsigned char *sha1)
int ifd, ofd, status;
struct stat st;
void *map;
- ifd = open(filename, O_RDONLY);
+ ifd = open(source, O_RDONLY);
if (ifd < 0 || fstat(ifd, &st) < 0) {
close(ifd);
- fprintf(stderr, "cannot open %s\n", filename);
+ fprintf(stderr, "cannot open %s\n", source);
return -1;
}
map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, ifd, 0);
close(ifd);
if (map == MAP_FAILED) {
- fprintf(stderr, "cannot mmap %s\n", filename);
+ fprintf(stderr, "cannot mmap %s\n", source);
return -1;
}
- ofd = open(dest_filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
+ ofd = open(dest, O_WRONLY | O_CREAT | O_EXCL, 0666);
status = ((ofd < 0) ||
(write(ofd, map, st.st_size) != st.st_size));
munmap(map, st.st_size);
close(ofd);
if (status)
- fprintf(stderr, "cannot write %s\n", dest_filename);
+ fprintf(stderr, "cannot write %s\n", dest);
else
pull_say("copy %s\n", hex);
return status;
@@ -77,6 +97,56 @@ int fetch(unsigned char *sha1)
return -1;
}
+int fetch_pack(unsigned char *sha1)
+{
+ struct packed_git *target;
+ char filename[PATH_MAX];
+ if (setup_indices())
+ return -1;
+ target = find_sha1_pack(sha1, packs);
+ if (!target)
+ return error("Couldn't find %s: not separate or in any pack",
+ sha1_to_hex(sha1));
+ if (get_verbosely) {
+ fprintf(stderr, "Getting pack %s\n",
+ sha1_to_hex(target->sha1));
+ fprintf(stderr, " which contains %s\n",
+ sha1_to_hex(sha1));
+ }
+ sprintf(filename, "%s/objects/pack/pack-%s.pack",
+ path, sha1_to_hex(sha1));
+ copy_file(filename, sha1_pack_name(sha1), sha1_to_hex(sha1));
+ sprintf(filename, "%s/objects/pack/pack-%s.idx",
+ path, sha1_to_hex(sha1));
+ copy_file(filename, sha1_pack_index_name(sha1), sha1_to_hex(sha1));
+ install_packed_git(target);
+ return 0;
+}
+
+int fetch_file(unsigned char *sha1)
+{
+ static int object_name_start = -1;
+ static char filename[PATH_MAX];
+ char *hex = sha1_to_hex(sha1);
+ const char *dest_filename = sha1_file_name(sha1);
+
+ if (object_name_start < 0) {
+ strcpy(filename, path); /* e.g. git.git */
+ strcat(filename, "/objects/");
+ object_name_start = strlen(filename);
+ }
+ filename[object_name_start+0] = hex[0];
+ filename[object_name_start+1] = hex[1];
+ filename[object_name_start+2] = '/';
+ strcpy(filename + object_name_start + 3, hex + 2);
+ return copy_file(filename, dest_filename, hex);
+}
+
+int fetch(unsigned char *sha1)
+{
+ return fetch_file(sha1) && fetch_pack(sha1);
+}
+
int fetch_ref(char *ref, unsigned char *sha1)
{
static int ref_name_start = -1;