diff options
| -rw-r--r-- | builtin-pack-objects.c | 297 |
1 files changed, 215 insertions, 82 deletions
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index 149fa28397..b6e59609e8 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -9,10 +9,13 @@ #include "pack.h" #include "csum-file.h" #include "tree-walk.h" +#include "diff.h" +#include "revision.h" +#include "list-objects.h" #include <sys/time.h> #include <signal.h> -static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} < object-list"; +static const char pack_usage[] = "git-pack-objects [-q] [--no-reuse-delta] [--non-empty] [--local] [--incremental] [--window=N] [--depth=N] {--stdout | base-name} [--revs [--unpacked | --all]* <ref-list | <object-list]"; struct object_entry { unsigned char sha1[20]; @@ -1326,89 +1329,14 @@ static int git_pack_config(const char *k, const char *v) return git_default_config(k, v); } -int cmd_pack_objects(int argc, const char **argv, const char *prefix) +static void read_object_list_from_stdin(void) { - SHA_CTX ctx; - char line[40 + 1 + PATH_MAX + 2]; - int depth = 10; - struct object_entry **list; int num_preferred_base = 0; - int i; - - git_config(git_pack_config); - - progress = isatty(2); - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; - - if (*arg == '-') { - if (!strcmp("--non-empty", arg)) { - non_empty = 1; - continue; - } - if (!strcmp("--local", arg)) { - local = 1; - continue; - } - if (!strcmp("--progress", arg)) { - progress = 1; - continue; - } - if (!strcmp("--incremental", arg)) { - incremental = 1; - continue; - } - if (!strncmp("--window=", arg, 9)) { - char *end; - window = strtoul(arg+9, &end, 0); - if (!arg[9] || *end) - usage(pack_usage); - continue; - } - if (!strncmp("--depth=", arg, 8)) { - char *end; - depth = strtoul(arg+8, &end, 0); - if (!arg[8] || *end) - usage(pack_usage); - continue; - } - if (!strcmp("--progress", arg)) { - progress = 1; - continue; - } - if (!strcmp("-q", arg)) { - progress = 0; - continue; - } - if (!strcmp("--no-reuse-delta", arg)) { - no_reuse_delta = 1; - continue; - } - if (!strcmp("--stdout", arg)) { - pack_to_stdout = 1; - continue; - } - usage(pack_usage); - } - if (base_name) - usage(pack_usage); - base_name = arg; - } - - if (pack_to_stdout != !base_name) - usage(pack_usage); - - prepare_packed_git(); - - if (progress) { - fprintf(stderr, "Generating pack...\n"); - setup_progress_signal(); - } + char line[40 + 1 + PATH_MAX + 2]; + unsigned char sha1[20]; + unsigned hash; for (;;) { - unsigned char sha1[20]; - unsigned hash; - if (!fgets(line, sizeof(line), stdin)) { if (feof(stdin)) break; @@ -1419,21 +1347,226 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) clearerr(stdin); continue; } - if (line[0] == '-') { if (get_sha1_hex(line+1, sha1)) die("expected edge sha1, got garbage:\n %s", - line+1); + line); if (num_preferred_base++ < window) add_preferred_base(sha1); continue; } if (get_sha1_hex(line, sha1)) die("expected sha1, got garbage:\n %s", line); + hash = name_hash(line+41); add_preferred_base_object(line+41, hash); add_object_entry(sha1, hash, 0); } +} + +/* copied from rev-list but needs to do things slightly differently */ +static void mark_edge_parents_uninteresting(struct commit *commit) +{ + struct commit_list *parents; + + for (parents = commit->parents; parents; parents = parents->next) { + struct commit *parent = parents->item; + if (!(parent->object.flags & UNINTERESTING)) + continue; + mark_tree_uninteresting(parent->tree); + } +} + +static void mark_edges_uninteresting(struct commit_list *list) +{ + for ( ; list; list = list->next) { + struct commit *commit = list->item; + + if (commit->object.flags & UNINTERESTING) { + mark_tree_uninteresting(commit->tree); + continue; + } + mark_edge_parents_uninteresting(commit); + } +} + +static void show_commit(struct commit *commit) +{ + unsigned hash = name_hash(""); + add_object_entry(commit->object.sha1, hash, 0); +} + +static void show_object(struct object_array_entry *p) +{ + unsigned hash = name_hash(p->name); + add_object_entry(p->item->sha1, hash, 0); +} + +static void get_object_list(int unpacked, int all) +{ + struct rev_info revs; + char line[1000]; + const char *av[6]; + int ac; + int flags = 0; + + av[0] = "pack-objects"; + av[1] = "--objects"; + ac = 2; + if (unpacked) + av[ac++] = "--unpacked"; + if (all) + av[ac++] = "--all"; + av[ac++] = "--stdin"; + av[ac] = NULL; + + init_revisions(&revs, NULL); + save_commit_buffer = 0; + track_object_refs = 0; + setup_revisions(ac, av, &revs, NULL); + + /* make sure we did not get pathspecs */ + if (revs.prune_data) + die("pathspec given"); + + while (fgets(line, sizeof(line), stdin) != NULL) { + int len = strlen(line); + if (line[len - 1] == '\n') + line[--len] = 0; + if (!len) + break; + if (*line == '-') { + if (!strcmp(line, "--not")) { + flags ^= UNINTERESTING; + continue; + } + die("not a rev '%s'", line); + } + if (handle_revision_arg(line, &revs, flags, 1)) + die("bad revision '%s'", line); + } + + prepare_revision_walk(&revs); + mark_edges_uninteresting(revs.commits); + + traverse_commit_list(&revs, show_commit, show_object); +} + +int cmd_pack_objects(int argc, const char **argv, const char *prefix) +{ + SHA_CTX ctx; + int depth = 10; + struct object_entry **list; + int use_internal_rev_list = 0; + int unpacked = 0; + int all = 0; + int i; + + git_config(git_pack_config); + + progress = isatty(2); + for (i = 1; i < argc; i++) { + const char *arg = argv[i]; + + if (*arg != '-') + break; + + if (!strcmp("--non-empty", arg)) { + non_empty = 1; + continue; + } + if (!strcmp("--local", arg)) { + local = 1; + continue; + } + if (!strcmp("--progress", arg)) { + progress = 1; + continue; + } + if (!strcmp("--incremental", arg)) { + incremental = 1; + continue; + } + if (!strncmp("--window=", arg, 9)) { + char *end; + window = strtoul(arg+9, &end, 0); + if (!arg[9] || *end) + usage(pack_usage); + continue; + } + if (!strncmp("--depth=", arg, 8)) { + char *end; + depth = strtoul(arg+8, &end, 0); + if (!arg[8] || *end) + usage(pack_usage); + continue; + } + if (!strcmp("--progress", arg)) { + progress = 1; + continue; + } + if (!strcmp("-q", arg)) { + progress = 0; + continue; + } + if (!strcmp("--no-reuse-delta", arg)) { + no_reuse_delta = 1; + continue; + } + if (!strcmp("--stdout", arg)) { + pack_to_stdout = 1; + continue; + } + if (!strcmp("--revs", arg)) { + use_internal_rev_list = 1; + continue; + } + if (!strcmp("--unpacked", arg)) { + unpacked = 1; + continue; + } + if (!strcmp("--all", arg)) { + all = 1; + continue; + } + usage(pack_usage); + } + + /* Traditionally "pack-objects [options] base extra" failed; + * we would however want to take refs parameter that would + * have been given to upstream rev-list ourselves, which means + * we somehow want to say what the base name is. So the + * syntax would be: + * + * pack-objects [options] base <refs...> + * + * in other words, we would treat the first non-option as the + * base_name and send everything else to the internal revision + * walker. + */ + + if (!pack_to_stdout) + base_name = argv[i++]; + + if (pack_to_stdout != !base_name) + usage(pack_usage); + + /* --unpacked and --all makes sense only with --revs */ + if (!use_internal_rev_list && (unpacked || all)) + usage(pack_usage); + + prepare_packed_git(); + + if (progress) { + fprintf(stderr, "Generating pack...\n"); + setup_progress_signal(); + } + + if (!use_internal_rev_list) + read_object_list_from_stdin(); + else + get_object_list(unpacked, all); + if (progress) fprintf(stderr, "Done counting %d objects.\n", nr_objects); sorted_by_sha = create_final_object_list(); |