#include "cache.h" #include "config.h" #include "commit.h" #include "diff.h" #include "revision.h" #include "list-objects.h" #include "list-objects-filter.h" #include "list-objects-filter-options.h" #include "object.h" #include "object-store.h" #include "pack.h" #include "pack-bitmap.h" #include "builtin.h" #include "log-tree.h" #include "graph.h" #include "bisect.h" #include "progress.h" #include "reflog-walk.h" #include "oidset.h" #include "packfile.h" static const char rev_list_usage[] = "git rev-list [OPTION] <commit-id>... [ -- paths... ]\n" " limiting output:\n" " --max-count=<n>\n" " --max-age=<epoch>\n" " --min-age=<epoch>\n" " --sparse\n" " --no-merges\n" " --min-parents=<n>\n" " --no-min-parents\n" " --max-parents=<n>\n" " --no-max-parents\n" " --remove-empty\n" " --all\n" " --branches\n" " --tags\n" " --remotes\n" " --stdin\n" " --quiet\n" " ordering output:\n" " --topo-order\n" " --date-order\n" " --reverse\n" " formatting output:\n" " --parents\n" " --children\n" " --objects | --objects-edge\n" " --unpacked\n" " --header | --pretty\n" " --[no-]object-names\n" " --abbrev=<n> | --no-abbrev\n" " --abbrev-commit\n" " --left-right\n" " --count\n" " special purpose:\n" " --bisect\n" " --bisect-vars\n" " --bisect-all" ; static struct progress *progress; static unsigned progress_counter; static struct list_objects_filter_options filter_options; static struct oidset omitted_objects; static int arg_print_omitted; /* print objects omitted by filter */ static struct oidset missing_objects; enum missing_action { MA_ERROR = 0, /* fail if any missing objects are encountered */ MA_ALLOW_ANY, /* silently allow ALL missing objects */ MA_PRINT, /* print ALL missing objects in special section */ MA_ALLOW_PROMISOR, /* silently allow all missing PROMISOR objects */ }; static enum missing_action arg_missing_action; /* display only the oid of each object encountered */ static int arg_show_object_names = 1; #define DEFAULT_OIDSET_SIZE (16*1024) static int show_disk_usage; static off_t total_disk_usage; static off_t get_object_disk_usage(struct object *obj) { off_t size; struct object_info oi = OBJECT_INFO_INIT; oi.disk_sizep = &size; if (oid_object_info_extended(the_repository, &obj->oid, &oi, 0) < 0) die(_("unable to get disk usage of %s"), oid_to_hex(&obj->oid)); return size; } static void finish_commit(struct commit *commit); static void show_commit(struct commit *commit, void *data) { struct rev_list_info *info = data; struct rev_info *revs = info->revs; display_progress(progress, ++progress_counter); if (show_disk_usage) total_disk_usage += get_object_disk_usage(&commit->object); if (info->flags & REV_LIST_QUIET) { finish_commit(commit); return; } graph_show_commit(revs->graph); if (revs->count) { if (commit->object.flags & PATCHSAME) revs->count_same++; else if (commit->object.flags & SYMMETRIC_LEFT) revs->count_left++; else revs->count_right++; finish_commit(commit); return; } if (info->show_timestamp) printf("%"PRItime" ", commit->date); if (info->header_prefix) fputs(info->header_prefix, stdout); if (revs->include_header) { if (!revs->graph) fputs(get_revision_mark(revs, commit), stdout); if (revs->abbrev_commit && revs->abbrev) fputs(find_unique_abbrev(&commit->object.oid, revs->abbrev), stdout); else fputs(oid_to_hex(&commit->object.oid), stdout); } if (revs->print_parents) { struct commit_list *parents = commit->parents; while (parents) { printf(" %s", oid_to_hex(&parents->item->object.oid)); parents = parents->next; } } if (revs->children.name) { struct commit_list *children; children = lookup_decoration(&revs->children, &commit->object); while (children) { printf(" %s", oid_to_hex(&children->item->object.oid)); children = children->next; } } show_decorations(revs, commit); if (revs->commit_format == CMIT_FMT_ONELINE) putchar(' '); else if (revs->include_header) putchar('\n'); if (revs->verbose_header) { struct strbuf buf = STRBUF_INIT; struct pretty_print_context ctx = {0}; ctx.abbrev = revs->abbrev; ctx.date_mode = revs->date_mode; ctx.date_mode_explicit = revs->date_mode_explicit; ctx.fmt = revs->commit_format; ctx.output_encoding = get_log_output_encoding(); ctx.color = revs->diffopt.use_color; pretty_print_commit(&ctx, commit, &buf); if (buf.len) { if (revs->commit_format != CMIT_FMT_ONELINE) graph_show_oneline(revs->graph); graph_show_commit_msg(revs->graph, stdout, &buf); /* * Add a newline after the commit message. * * Usually, this newline produces a blank * padding line between entries, in which case * we need to add graph padding on this line. * * However, the commit message may not end in a * newline. In this case the newline simply * ends the last line of the commit message, * and we don't need any graph output. (This * always happens with CMIT_FMT_ONELINE, and it * happens with CMIT_FMT_USERFORMAT when the * format doesn't explicitly end in a newline.) */ if (buf.len && buf.buf[buf.len - 1] == '\n') graph_show_padding(revs->graph); putchar(info->hdr_termination); } else { /* * If the message buffer is empty, just show * the rest of the graph output for this * commit. */ if (graph_show_remainder(revs->graph)) putchar('\n'); if (revs->commit_format == CMIT_FMT_ONELINE) putchar('\n'); } strbuf_release(&buf); } else { if (graph_show_remainder(revs->graph)) putchar('\n'); } maybe_flush_or_die(stdout, "stdout"); finish_commit(commit); } static void finish_commit(struct commit *commit) { if (commit->parents) { free_commit_list(commit->parents); commit->parents = NULL; } free_commit_buffer(the_repository->parsed_objects, commit); } static inline void finish_object__ma(struct object *obj) { /* * Whether or not we try to dynamically fetch missing objects * from the server, we currently DO NOT have the object. We * can either print, allow (ignore), or conditionally allow * (ignore) them. */ switch (arg_missing_action) { case MA_ERROR: die("missing %s object '%s'", type_name(obj->type), oid_to_hex(&obj->oid)); return; case MA_ALLOW_ANY: return; case MA_PRINT: oidset_insert(&missing_objects, &obj->oid); return; case MA_ALLOW_PROMISOR: if (is_promisor_object(&obj->oid)) return; die("unexpected missing %s object '%s'", type_name(obj->type), oid_to_hex(&obj->oid)); return; default: BUG("unhandled missing_action"); return; } } static int finish_object(struct object *obj, const char *name, void *cb_data) { struct rev_list_info *info = cb_data; if (oid_object_info_extended(the_repository, &obj->oid, NULL, 0) < 0) { finish_object__ma(obj); return 1; } if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT) parse_object(the_repository, &obj->oid); return 0; } static void show_object(struct object *obj, const char *name, void *cb_data) { struct rev_list_info *info = cb_data; struct rev_info *revs = info->revs; if (finish_object(obj, name, cb_data)) return; display_progress(progress, ++progress_counter); if (show_disk_usage) total_disk_usage += get_object_disk_usage(obj); if (info->flags & REV_LIST_QUIET) return; if (revs->count) { /* * The object count is always accumulated in the .count_right * field for traversal that is not a left-right traversal, * and cmd_rev_list() made sure that a .count request that * wants to count non-commit objects, which is handled by * the show_object() callback, does not ask for .left_right. */ revs->count_right++; return; } if (arg_show_object_names) show_object_with_name(stdout, obj, name); else printf("%s\n", oid_to_hex(&obj->oid)); } static void show_edge(struct commit *commit) { printf("-%s\n", oid_to_hex(&commit->object.oid)); } static void print_var_str(const char *var, const char *val) { printf("%s='%s'\n", var, val); } static void print_var_int(const char *var, int val) { printf("%s=%d\n", var, val); } static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) { int cnt, flags = info->flags; char hex[GIT_MAX_HEXSZ + 1] = ""; struct commit_list *tried; struct rev_info *revs = info->revs; if (!revs->commits) return 1; revs->commits = filter_skipped(revs->commits, &tried, flags & BISECT_SHOW_ALL, NULL, NULL); /* * revs->commits can reach "reaches" commits among * "all" commits. If it is good, then there are * (all-reaches) commits left to be bisected. * On the other hand, if it is bad, then the set * to bisect is "reaches". * A bisect set of size N has (N-1) commits further * to test, as we already know one bad one. */ cnt = all - reaches; if (cnt < reaches) cnt = reaches; if (revs->commits) oid_to_hex_r(hex, &revs->commits->item->object.oid); if (flags & BISECT_SHOW_ALL) { traverse_commit_list(revs, show_commit, show_object, info); printf("------\n"); } print_var_str("bisect_rev", hex); print_var_int("bisect_nr", cnt - 1); print_var_int("bisect_good", all - reaches - 1); print_var_int("bisect_bad", reaches - 1); print_var_int("bisect_all", all); print_var_int("bisect_steps", estimate_bisect_steps(all)); return 0; } static int show_object_fast( const struct object_id *oid, enum object_type type, int exclude, uint32_t name_hash, struct packed_git *found_pack, off_t found_offset) { fprintf(stdout, "%s\n", oid_to_hex(oid)); return 1; } static inline int parse_missing_action_value(const char *value) { if (!strcmp(value, "error")) { arg_missing_action = MA_ERROR; return 1; } if (!strcmp(value, "allow-any")) { arg_missing_action = MA_ALLOW_ANY; fetch_if_missing = 0; return 1; } if (!strcmp(value, "print")) { arg_missing_action = MA_PRINT; fetch_if_missing = 0; return 1; } if (!strcmp(value, "allow-promisor")) { arg_missing_action = MA_ALLOW_PROMISOR; fetch_if_missing = 0; return 1; } return 0; } static int try_bitmap_count(struct rev_info *revs, struct list_objects_filter_options *filter, int filter_provided_objects) { uint32_t commit_count = 0, tag_count = 0, tree_count = 0, blob_count = 0; int max_count; struct bitmap_index *bitmap_git; /* This function only handles counting, not general traversal. */ if (!revs->count) return -1; /* * A bitmap result can't know left/right, etc, because we don't * actually traverse. */ if (revs->left_right || revs->cherry_mark) return -1; /* * If we're counting reachable objects, we can't handle a max count of * commits to traverse, since we don't know which objects go with which * commit. */ if (revs->max_count >= 0 && (revs->tag_objects || revs->tree_objects || revs->blob_objects)) return -1; /* * This must be saved before doing any walking, since the revision * machinery will count it down to zero while traversing. */ max_count = revs->max_count; bitmap_git = prepare_bitmap_walk(revs, filter, filter_provided_objects); if (!bitmap_git) return -1; count_bitmap_commit_list(bitmap_git, &commit_count, revs->tree_objects ? &tree_count : NULL, revs->blob_objects ? &blob_count : NULL, revs->tag_objects ? &tag_count : NULL); if (max_count >= 0 && max_count < commit_count) commit_count = max_count; printf("%d\n", commit_count + tree_count + blob_count + tag_count); free_bitmap_index(bitmap_git); return 0; } static int try_bitmap_traversal(struct rev_info *revs, struct list_objects_filter_options *filter, int filter_provided_objects) { struct bitmap_index *bitmap_git; /* * We can't use a bitmap result with a traversal limit, since the set * of commits we'd get would be essentially random. */ if (revs->max_count >= 0) return -1; bitmap_git = prepare_bitmap_walk(revs, filter, filter_provided_objects); if (!bitmap_git) return -1; traverse_bitmap_commit_list(bitmap_git, revs, &show_object_fast); free_bitmap_index(bitmap_git); return 0; } static int try_bitmap_disk_usage(struct rev_info *revs, struct list_objects_filter_options *filter, int filter_provided_objects) { struct bitmap_index *bitmap_git; if (!show_disk_usage) return -1; bitmap_git = prepare_bitmap_walk(revs, filter, filter_provided_objects); if (!bitmap_git) return -1; printf("%"PRIuMAX"\n", (uintmax_t)get_disk_usage_from_bitmap(bitmap_git, revs)); return 0; } int cmd_rev_list(int argc, const char **argv, const char *prefix) { struct rev_info revs; struct rev_list_info info; struct setup_revision_opt s_r_opt = { .allow_exclude_promisor_objects = 1, }; int i; int bisect_list = 0; int bisect_show_vars = 0; int bisect_find_all = 0; int use_bitmap_index = 0; int filter_provided_objects = 0; const char *show_progress = NULL; if (argc == 2 && !strcmp(argv[1], "-h")) usage(rev_list_usage); git_config(git_default_config, NULL); repo_init_revisions(the_repository, &revs, prefix); revs.abbrev = DEFAULT_ABBREV; revs.commit_format = CMIT_FMT_UNSPECIFIED; revs.include_header = 1; /* * Scan the argument list before invoking setup_revisions(), so that we * know if fetch_if_missing needs to be set to 0. * * "--exclude-promisor-objects" acts as a pre-filter on missing objects * by not crossing the boundary from realized objects to promisor * objects. * * Let "--missing" to conditionally set fetch_if_missing. */ for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "--exclude-promisor-objects")) { fetch_if_missing = 0; revs.exclude_promisor_objects = 1; break; } } for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (skip_prefix(arg, "--missing=", &arg)) { if (revs.exclude_promisor_objects) die(_("options '%s' and '%s' cannot be used together"), "--exclude-promisor-objects", "--missing"); if (parse_missing_action_value(arg)) break; } } if (arg_missing_action) revs.do_not_die_on_missing_tree = 1; argc = setup_revisions(argc, argv, &revs, &s_r_opt); memset(&info, 0, sizeof(info)); info.revs = &revs; if (revs.bisect) bisect_list = 1; if (revs.diffopt.flags.quick) info.flags |= REV_LIST_QUIET; for (i = 1 ; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "--header")) { revs.verbose_header = 1; continue; } if (!strcmp(arg, "--timestamp")) { info.show_timestamp = 1; continue; } if (!strcmp(arg, "--bisect")) { bisect_list = 1; continue; } if (!strcmp(arg, "--bisect-all")) { bisect_list = 1; bisect_find_all = 1; info.flags |= BISECT_SHOW_ALL; revs.show_decorations = 1; continue; } if (!strcmp(arg, "--bisect-vars")) { bisect_list = 1; bisect_show_vars = 1; continue; } if (!strcmp(arg, "--use-bitmap-index")) { use_bitmap_index = 1; continue; } if (!strcmp(arg, "--test-bitmap")) { test_bitmap_walk(&revs); return 0; } if (skip_prefix(arg, "--progress=", &arg)) { show_progress = arg; continue; } if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) { parse_list_objects_filter(&filter_options, arg); if (filter_options.choice && !revs.blob_objects) die(_("object filtering requires --objects")); continue; } if (!strcmp(arg, ("--no-" CL_ARG__FILTER))) { list_objects_filter_set_no_filter(&filter_options); continue; } if (!strcmp(arg, "--filter-provided-objects")) { filter_provided_objects = 1; continue; } if (!strcmp(arg, "--filter-print-omitted")) { arg_print_omitted = 1; continue; } if (!strcmp(arg, "--exclude-promisor-objects")) continue; /* already handled above */ if (skip_prefix(arg, "--missing=", &arg)) continue; /* already handled above */ if (!strcmp(arg, ("--no-object-names"))) { arg_show_object_names = 0; continue; } if (!strcmp(arg, ("--object-names"))) { arg_show_object_names = 1; continue; } if (!strcmp(arg, ("--commit-header"))) { revs.include_header = 1; continue; } if (!strcmp(arg, ("--no-commit-header"))) { revs.include_header = 0; continue; } if (!strcmp(arg, "--disk-usage")) { show_disk_usage = 1; info.flags |= REV_LIST_QUIET; continue; } usage(rev_list_usage); } if (revs.commit_format != CMIT_FMT_USERFORMAT) revs.include_header = 1; if (revs.commit_format != CMIT_FMT_UNSPECIFIED) { /* The command line has a --pretty */ info.hdr_termination = '\n'; if (revs.commit_format == CMIT_FMT_ONELINE || !revs.include_header) info.header_prefix = ""; else info.header_prefix = "commit "; } else if (revs.verbose_header) /* Only --header was specified */ revs.commit_format = CMIT_FMT_RAW; if ((!revs.commits && reflog_walk_empty(revs.reflog_info) && (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) && !revs.pending.nr) && !revs.rev_input_given && !revs.read_from_stdin) || revs.diff) usage(rev_list_usage); if (revs.show_notes) die(_("rev-list does not support display of notes")); if (revs.count && (revs.tag_objects || revs.tree_objects || revs.blob_objects) && (revs.left_right || revs.cherry_mark)) die(_("marked counting and '%s' cannot be used together"), "--objects"); save_commit_buffer = (revs.verbose_header || revs.grep_filter.pattern_list || revs.grep_filter.header_list); if (bisect_list) revs.limited = 1; if (show_progress) progress = start_delayed_progress(show_progress, 0); if (use_bitmap_index) { if (!try_bitmap_count(&revs, &filter_options, filter_provided_objects)) return 0; if (!try_bitmap_disk_usage(&revs, &filter_options, filter_provided_objects)) return 0; if (!try_bitmap_traversal(&revs, &filter_options, filter_provided_objects)) return 0; } if (prepare_revision_walk(&revs)) die("revision walk setup failed"); if (revs.tree_objects) mark_edges_uninteresting(&revs, show_edge, 0); if (bisect_list) { int reaches, all; unsigned bisect_flags = 0; if (bisect_find_all) bisect_flags |= FIND_BISECTION_ALL; if (revs.first_parent_only) bisect_flags |= FIND_BISECTION_FIRST_PARENT_ONLY; find_bisection(&revs.commits, &reaches, &all, bisect_flags); if (bisect_show_vars) return show_bisect_vars(&info, reaches, all); } if (filter_provided_objects) { struct commit_list *c; for (i = 0; i < revs.pending.nr; i++) { struct object_array_entry *pending = revs.pending.objects + i; pending->item->flags |= NOT_USER_GIVEN; } for (c = revs.commits; c; c = c->next) c->item->object.flags |= NOT_USER_GIVEN; } if (arg_print_omitted) oidset_init(&omitted_objects, DEFAULT_OIDSET_SIZE); if (arg_missing_action == MA_PRINT) oidset_init(&missing_objects, DEFAULT_OIDSET_SIZE); traverse_commit_list_filtered( &filter_options, &revs, show_commit, show_object, &info, (arg_print_omitted ? &omitted_objects : NULL)); if (arg_print_omitted) { struct oidset_iter iter; struct object_id *oid; oidset_iter_init(&omitted_objects, &iter); while ((oid = oidset_iter_next(&iter))) printf("~%s\n", oid_to_hex(oid)); oidset_clear(&omitted_objects); } if (arg_missing_action == MA_PRINT) { struct oidset_iter iter; struct object_id *oid; oidset_iter_init(&missing_objects, &iter); while ((oid = oidset_iter_next(&iter))) printf("?%s\n", oid_to_hex(oid)); oidset_clear(&missing_objects); } stop_progress(&progress); if (revs.count) { if (revs.left_right && revs.cherry_mark) printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same); else if (revs.left_right) printf("%d\t%d\n", revs.count_left, revs.count_right); else if (revs.cherry_mark) printf("%d\t%d\n", revs.count_left + revs.count_right, revs.count_same); else printf("%d\n", revs.count_left + revs.count_right); } if (show_disk_usage) printf("%"PRIuMAX"\n", (uintmax_t)total_disk_usage); return 0; }