ls-files: --others should not say unmerged paths are unknown.
[gitweb.git] / pack-objects.c
index ef55cab5f3f4233805c6fa1958655afc6f2cad2f..4e941e7392077dca9b511282be13e2b559589e5b 100644 (file)
@@ -1,11 +1,10 @@
-#include <ctype.h>
 #include "cache.h"
 #include "object.h"
 #include "delta.h"
 #include "pack.h"
 #include "csum-file.h"
 
-static const char pack_usage[] = "git-pack-objects [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
+static const char pack_usage[] = "git-pack-objects [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list";
 
 struct object_entry {
        unsigned char sha1[20];
@@ -20,6 +19,7 @@ struct object_entry {
 
 static unsigned char object_list_sha1[20];
 static int non_empty = 0;
+static int local = 0;
 static int incremental = 0;
 static struct object_entry **sorted_by_sha, **sorted_by_type;
 static struct object_entry *objects = NULL;
@@ -195,8 +195,20 @@ static int add_object_entry(unsigned char *sha1, unsigned int hash)
        unsigned int idx = nr_objects;
        struct object_entry *entry;
 
-       if (incremental && has_sha1_pack(sha1))
-               return 0;
+       if (incremental || local) {
+               struct packed_git *p;
+
+               for (p = packed_git; p; p = p->next) {
+                       struct pack_entry e;
+
+                       if (find_pack_entry_one(sha1, &e, p)) {
+                               if (incremental)
+                                       return 0;
+                               if (local && !p->pack_local)
+                                       return 0;
+                       }
+               }
+       }
 
        if (idx >= nr_alloc) {
                unsigned int needed = (idx + 1024) * 3 / 2;
@@ -388,6 +400,71 @@ static void find_deltas(struct object_entry **list, int window, int depth)
        free(array);
 }
 
+static void prepare_pack(int window, int depth)
+{
+       get_object_details();
+
+       fprintf(stderr, "Packing %d objects\n", nr_objects);
+
+       sorted_by_type = create_sorted_list(type_size_sort);
+       if (window && depth)
+               find_deltas(sorted_by_type, window+1, depth);
+       write_pack_file();
+}
+
+static int reuse_cached_pack(unsigned char *sha1, int pack_to_stdout)
+{
+       static const char cache[] = "pack-cache/pack-%s.%s";
+       char *cached_pack, *cached_idx;
+       int ifd, ofd, ifd_ix = -1;
+
+       cached_pack = git_path(cache, sha1_to_hex(sha1), "pack");
+       ifd = open(cached_pack, O_RDONLY);
+       if (ifd < 0)
+               return 0;
+
+       if (!pack_to_stdout) {
+               cached_idx = git_path(cache, sha1_to_hex(sha1), "idx");
+               ifd_ix = open(cached_idx, O_RDONLY);
+               if (ifd_ix < 0) {
+                       close(ifd);
+                       return 0;
+               }
+       }
+
+       fprintf(stderr, "Reusing %d objects pack %s\n", nr_objects,
+               sha1_to_hex(sha1));
+
+       if (pack_to_stdout) {
+               if (copy_fd(ifd, 1))
+                       exit(1);
+               close(ifd);
+       }
+       else {
+               char name[PATH_MAX];
+               snprintf(name, sizeof(name),
+                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "pack");
+               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
+               if (ofd < 0)
+                       die("unable to open %s (%s)", name, strerror(errno));
+               if (copy_fd(ifd, ofd))
+                       exit(1);
+               close(ifd);
+
+               snprintf(name, sizeof(name),
+                        "%s-%s.%s", base_name, sha1_to_hex(sha1), "idx");
+               ofd = open(name, O_CREAT | O_EXCL | O_WRONLY, 0666);
+               if (ofd < 0)
+                       die("unable to open %s (%s)", name, strerror(errno));
+               if (copy_fd(ifd_ix, ofd))
+                       exit(1);
+               close(ifd_ix);
+               puts(sha1_to_hex(sha1));
+       }
+
+       return 1;
+}
+
 int main(int argc, char **argv)
 {
        SHA_CTX ctx;
@@ -404,6 +481,10 @@ int main(int argc, char **argv)
                                non_empty = 1;
                                continue;
                        }
+                       if (!strcmp("--local", arg)) {
+                               local = 1;
+                               continue;
+                       }
                        if (!strcmp("--incremental", arg)) {
                                incremental = 1;
                                continue;
@@ -436,6 +517,7 @@ int main(int argc, char **argv)
        if (pack_to_stdout != !base_name)
                usage(pack_usage);
 
+       prepare_packed_git();
        while (fgets(line, sizeof(line), stdin) != NULL) {
                unsigned int hash;
                char *p;
@@ -455,9 +537,6 @@ int main(int argc, char **argv)
        }
        if (non_empty && !nr_objects)
                return 0;
-       get_object_details();
-
-       fprintf(stderr, "Packing %d objects\n", nr_objects);
 
        sorted_by_sha = create_sorted_list(sha1_sort);
        SHA1_Init(&ctx);
@@ -468,14 +547,14 @@ int main(int argc, char **argv)
        }
        SHA1_Final(object_list_sha1, &ctx);
 
-       sorted_by_type = create_sorted_list(type_size_sort);
-       if (window && depth)
-               find_deltas(sorted_by_type, window+1, depth);
-
-       write_pack_file();
-       if (!pack_to_stdout) {
-               write_index_file();
-               puts(sha1_to_hex(object_list_sha1));
+       if (reuse_cached_pack(object_list_sha1, pack_to_stdout))
+               ;
+       else {
+               prepare_pack(window, depth);
+               if (!pack_to_stdout) {
+                       write_index_file();
+                       puts(sha1_to_hex(object_list_sha1));
+               }
        }
        return 0;
 }