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