Show usage string for 'git get-tar-commit-id -h'

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 941cc2d73cf5ee6791a0cee8c409dcdb9756b448..4c91e944c21df3d5e02535115cdd6098ee49d86d 100644 (file)
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -22,15 +22,15 @@
 #include <pthread.h>
 #endif
 
-static const char pack_usage[] = "\
-git pack-objects [{ -q | --progress | --all-progress }] \n\
-       [--max-pack-size=N] [--local] [--incremental] \n\
-       [--window=N] [--window-memory=N] [--depth=N] \n\
-       [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] \n\
-       [--threads=N] [--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\
-       [--stdout | base-name] [--include-tag] \n\
-       [--keep-unreachable | --unpack-unreachable] \n\
-       [<ref-list | <object-list]";
+static const char pack_usage[] =
+  "git pack-objects [{ -q | --progress | --all-progress }]\n"
+  "        [--max-pack-size=N] [--local] [--incremental]\n"
+  "        [--window=N] [--window-memory=N] [--depth=N]\n"
+  "        [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset]\n"
+  "        [--threads=N] [--non-empty] [--revs [--unpacked | --all]*]\n"
+  "        [--reflog] [--stdout | base-name] [--include-tag]\n"
+  "        [--keep-unreachable | --unpack-unreachable \n"
+  "        [<ref-list | <object-list]";
 
 struct object_entry {
        struct pack_idx_entry idx;
@@ -86,7 +86,7 @@ static int pack_compression_level = Z_DEFAULT_COMPRESSION;
 static int pack_compression_seen;
 
 static unsigned long delta_cache_size = 0;
-static unsigned long max_delta_cache_size = 0;
+static unsigned long max_delta_cache_size = 256 * 1024 * 1024;
 static unsigned long cache_max_small_delta_size = 1000;
 
 static unsigned long window_memory_limit = 0;
@@ -536,11 +536,9 @@ static void write_pack_file(void)
                                 base_name, sha1_to_hex(sha1));
                        free_pack_by_name(tmpname);
                        if (adjust_perm(pack_tmp_name, mode))
-                               die("unable to make temporary pack file readable: %s",
-                                   strerror(errno));
+                               die_errno("unable to make temporary pack file readable");
                        if (rename(pack_tmp_name, tmpname))
-                               die("unable to rename temporary pack file: %s",
-                                   strerror(errno));
+                               die_errno("unable to rename temporary pack file");
 
                        /*
                         * Packs are runtime accessed in their mtime
@@ -566,11 +564,9 @@ static void write_pack_file(void)
                        snprintf(tmpname, sizeof(tmpname), "%s-%s.idx",
                                 base_name, sha1_to_hex(sha1));
                        if (adjust_perm(idx_tmp_name, mode))
-                               die("unable to make temporary index file readable: %s",
-                                   strerror(errno));
+                               die_errno("unable to make temporary index file readable");
                        if (rename(idx_tmp_name, tmpname))
-                               die("unable to rename temporary index file: %s",
-                                   strerror(errno));
+                               die_errno("unable to rename temporary index file");
 
                        free(idx_tmp_name);
                        free(pack_tmp_name);
@@ -1012,6 +1008,33 @@ static void add_preferred_base(unsigned char *sha1)
        it->pcache.tree_size = size;
 }
 
+static void cleanup_preferred_base(void)
+{
+       struct pbase_tree *it;
+       unsigned i;
+
+       it = pbase_tree;
+       pbase_tree = NULL;
+       while (it) {
+               struct pbase_tree *this = it;
+               it = this->next;
+               free(this->pcache.tree_data);
+               free(this);
+       }
+
+       for (i = 0; i < ARRAY_SIZE(pbase_tree_cache); i++) {
+               if (!pbase_tree_cache[i])
+                       continue;
+               free(pbase_tree_cache[i]->tree_data);
+               free(pbase_tree_cache[i]);
+               pbase_tree_cache[i] = NULL;
+       }
+
+       free(done_pbase_paths);
+       done_pbase_paths = NULL;
+       done_pbase_paths_num = done_pbase_paths_alloc = 0;
+}
+
 static void check_object(struct object_entry *entry)
 {
        if (entry->in_pack) {
@@ -1603,9 +1626,11 @@ static void *threaded_find_deltas(void *arg)
 static void ll_find_deltas(struct object_entry **list, unsigned list_size,
                           int window, int depth, unsigned *processed)
 {
-       struct thread_params p[delta_search_threads];
+       struct thread_params *p;
        int i, ret, active_threads = 0;
 
+       if (!delta_search_threads)      /* --threads=0 means autodetect */
+               delta_search_threads = online_cpus();
        if (delta_search_threads <= 1) {
                find_deltas(list, &list_size, window, depth, processed);
                return;
@@ -1613,6 +1638,7 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size,
        if (progress > pack_to_stdout)
                fprintf(stderr, "Delta compression using up to %d threads.\n",
                                delta_search_threads);
+       p = xcalloc(delta_search_threads, sizeof(*p));
 
        /* Partition the work amongst work threads. */
        for (i = 0; i < delta_search_threads; i++) {
@@ -1721,6 +1747,7 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size,
                        active_threads--;
                }
        }
+       free(p);
 }
 
 #else
@@ -1812,7 +1839,7 @@ static void prepare_pack(int window, int depth)
 
 static int git_pack_config(const char *k, const char *v, void *cb)
 {
-       if(!strcmp(k, "pack.window")) {
+       if (!strcmp(k, "pack.window")) {
                window = git_config_int(k, v);
                return 0;
        }
@@ -1879,7 +1906,7 @@ static void read_object_list_from_stdin(void)
                        if (!ferror(stdin))
                                die("fgets returned NULL, not EOF, not error!");
                        if (errno != EINTR)
-                               die("fgets: %s", strerror(errno));
+                               die_errno("fgets");
                        clearerr(stdin);
                        continue;
                }
@@ -2102,6 +2129,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
        int rp_ac_alloc = 64;
        int rp_ac;
 
+       read_replace_refs = 0;
+
        rp_av = xcalloc(rp_ac_alloc, sizeof(*rp_av));
 
        rp_av[0] = "pack-objects";
@@ -2259,6 +2288,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
                                die("bad %s", arg);
                        continue;
                }
+               if (!strcmp(arg, "--keep-true-parents")) {
+                       grafts_replace_parents = 0;
+                       continue;
+               }
                usage(pack_usage);
        }
 
@@ -2293,11 +2326,6 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
        if (keep_unreachable && unpack_unreachable)
                die("--keep-unreachable and --unpack-unreachable are incompatible.");
 
-#ifdef THREADED_DELTA_SEARCH
-       if (!delta_search_threads)      /* --threads=0 means autodetect */
-               delta_search_threads = online_cpus();
-#endif
-
        prepare_packed_git();
 
        if (progress)
@@ -2308,6 +2336,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
                rp_av[rp_ac] = NULL;
                get_object_list(rp_ac, rp_av);
        }
+       cleanup_preferred_base();
        if (include_tag && nr_result)
                for_each_ref(add_ref_tag, NULL);
        stop_progress(&progress_state);