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![Jonathan Tan](/assets/img/avatar_default.png)
Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
211 lines
5.5 KiB
C
211 lines
5.5 KiB
C
#include "builtin.h"
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#include "config.h"
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#include "dir.h"
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#include "lockfile.h"
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#include "parse-options.h"
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#include "repository.h"
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#include "commit-graph.h"
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static char const * const builtin_commit_graph_usage[] = {
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N_("git commit-graph [--object-dir <objdir>]"),
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N_("git commit-graph read [--object-dir <objdir>]"),
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N_("git commit-graph verify [--object-dir <objdir>]"),
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N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
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NULL
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};
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static const char * const builtin_commit_graph_verify_usage[] = {
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N_("git commit-graph verify [--object-dir <objdir>]"),
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NULL
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};
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static const char * const builtin_commit_graph_read_usage[] = {
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N_("git commit-graph read [--object-dir <objdir>]"),
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NULL
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};
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static const char * const builtin_commit_graph_write_usage[] = {
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N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
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NULL
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};
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static struct opts_commit_graph {
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const char *obj_dir;
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int reachable;
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int stdin_packs;
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int stdin_commits;
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int append;
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} opts;
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static int graph_verify(int argc, const char **argv)
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{
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struct commit_graph *graph = NULL;
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char *graph_name;
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static struct option builtin_commit_graph_verify_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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N_("dir"),
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N_("The object directory to store the graph")),
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OPT_END(),
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};
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argc = parse_options(argc, argv, NULL,
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builtin_commit_graph_verify_options,
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builtin_commit_graph_verify_usage, 0);
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if (!opts.obj_dir)
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opts.obj_dir = get_object_directory();
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph = load_commit_graph_one(graph_name);
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FREE_AND_NULL(graph_name);
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if (!graph)
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return 0;
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return verify_commit_graph(the_repository, graph);
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}
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static int graph_read(int argc, const char **argv)
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{
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struct commit_graph *graph = NULL;
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char *graph_name;
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static struct option builtin_commit_graph_read_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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N_("dir"),
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N_("The object directory to store the graph")),
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OPT_END(),
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};
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argc = parse_options(argc, argv, NULL,
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builtin_commit_graph_read_options,
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builtin_commit_graph_read_usage, 0);
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if (!opts.obj_dir)
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opts.obj_dir = get_object_directory();
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph = load_commit_graph_one(graph_name);
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if (!graph) {
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UNLEAK(graph_name);
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die("graph file %s does not exist", graph_name);
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}
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FREE_AND_NULL(graph_name);
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printf("header: %08x %d %d %d %d\n",
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ntohl(*(uint32_t*)graph->data),
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*(unsigned char*)(graph->data + 4),
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*(unsigned char*)(graph->data + 5),
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*(unsigned char*)(graph->data + 6),
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*(unsigned char*)(graph->data + 7));
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printf("num_commits: %u\n", graph->num_commits);
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printf("chunks:");
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if (graph->chunk_oid_fanout)
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printf(" oid_fanout");
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if (graph->chunk_oid_lookup)
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printf(" oid_lookup");
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if (graph->chunk_commit_data)
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printf(" commit_metadata");
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if (graph->chunk_large_edges)
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printf(" large_edges");
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printf("\n");
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free_commit_graph(graph);
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return 0;
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}
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static int graph_write(int argc, const char **argv)
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{
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struct string_list *pack_indexes = NULL;
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struct string_list *commit_hex = NULL;
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struct string_list lines;
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static struct option builtin_commit_graph_write_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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N_("dir"),
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N_("The object directory to store the graph")),
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OPT_BOOL(0, "reachable", &opts.reachable,
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N_("start walk at all refs")),
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OPT_BOOL(0, "stdin-packs", &opts.stdin_packs,
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N_("scan pack-indexes listed by stdin for commits")),
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OPT_BOOL(0, "stdin-commits", &opts.stdin_commits,
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N_("start walk at commits listed by stdin")),
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OPT_BOOL(0, "append", &opts.append,
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N_("include all commits already in the commit-graph file")),
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OPT_END(),
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};
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argc = parse_options(argc, argv, NULL,
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builtin_commit_graph_write_options,
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builtin_commit_graph_write_usage, 0);
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if (opts.reachable + opts.stdin_packs + opts.stdin_commits > 1)
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die(_("use at most one of --reachable, --stdin-commits, or --stdin-packs"));
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if (!opts.obj_dir)
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opts.obj_dir = get_object_directory();
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if (opts.reachable) {
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write_commit_graph_reachable(opts.obj_dir, opts.append);
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return 0;
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}
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string_list_init(&lines, 0);
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if (opts.stdin_packs || opts.stdin_commits) {
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struct strbuf buf = STRBUF_INIT;
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while (strbuf_getline(&buf, stdin) != EOF)
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string_list_append(&lines, strbuf_detach(&buf, NULL));
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if (opts.stdin_packs)
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pack_indexes = &lines;
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if (opts.stdin_commits)
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commit_hex = &lines;
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}
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write_commit_graph(opts.obj_dir,
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pack_indexes,
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commit_hex,
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opts.append);
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string_list_clear(&lines, 0);
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return 0;
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}
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int cmd_commit_graph(int argc, const char **argv, const char *prefix)
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{
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static struct option builtin_commit_graph_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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N_("dir"),
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N_("The object directory to store the graph")),
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OPT_END(),
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};
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if (argc == 2 && !strcmp(argv[1], "-h"))
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usage_with_options(builtin_commit_graph_usage,
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builtin_commit_graph_options);
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix,
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builtin_commit_graph_options,
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builtin_commit_graph_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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if (argc > 0) {
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if (!strcmp(argv[0], "read"))
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return graph_read(argc, argv);
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if (!strcmp(argv[0], "verify"))
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return graph_verify(argc, argv);
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if (!strcmp(argv[0], "write"))
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return graph_write(argc, argv);
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}
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usage_with_options(builtin_commit_graph_usage,
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builtin_commit_graph_options);
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}
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