ci: remove the pipe after "p4 -V" to catch errors
[alt-git.git] / builtin / commit-graph.c
blobcd8631522167e1c1f23da9038bf58ce87c17fa94
1 #include "builtin.h"
2 #include "config.h"
3 #include "dir.h"
4 #include "lockfile.h"
5 #include "parse-options.h"
6 #include "repository.h"
7 #include "commit-graph.h"
8 #include "object-store.h"
9 #include "progress.h"
10 #include "tag.h"
12 static char const * const builtin_commit_graph_usage[] = {
13 N_("git commit-graph verify [--object-dir <objdir>] [--shallow] [--[no-]progress]"),
14 N_("git commit-graph write [--object-dir <objdir>] [--append] "
15 "[--split[=<strategy>]] [--reachable|--stdin-packs|--stdin-commits] "
16 "[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress] "
17 "<split options>"),
18 NULL
21 static const char * const builtin_commit_graph_verify_usage[] = {
22 N_("git commit-graph verify [--object-dir <objdir>] [--shallow] [--[no-]progress]"),
23 NULL
26 static const char * const builtin_commit_graph_write_usage[] = {
27 N_("git commit-graph write [--object-dir <objdir>] [--append] "
28 "[--split[=<strategy>]] [--reachable|--stdin-packs|--stdin-commits] "
29 "[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress] "
30 "<split options>"),
31 NULL
34 static struct opts_commit_graph {
35 const char *obj_dir;
36 int reachable;
37 int stdin_packs;
38 int stdin_commits;
39 int append;
40 int split;
41 int shallow;
42 int progress;
43 int enable_changed_paths;
44 } opts;
46 static struct object_directory *find_odb(struct repository *r,
47 const char *obj_dir)
49 struct object_directory *odb;
50 char *obj_dir_real = real_pathdup(obj_dir, 1);
51 struct strbuf odb_path_real = STRBUF_INIT;
53 prepare_alt_odb(r);
54 for (odb = r->objects->odb; odb; odb = odb->next) {
55 strbuf_realpath(&odb_path_real, odb->path, 1);
56 if (!strcmp(obj_dir_real, odb_path_real.buf))
57 break;
60 free(obj_dir_real);
61 strbuf_release(&odb_path_real);
63 if (!odb)
64 die(_("could not find object directory matching %s"), obj_dir);
65 return odb;
68 static int graph_verify(int argc, const char **argv)
70 struct commit_graph *graph = NULL;
71 struct object_directory *odb = NULL;
72 char *graph_name;
73 int open_ok;
74 int fd;
75 struct stat st;
76 int flags = 0;
78 static struct option builtin_commit_graph_verify_options[] = {
79 OPT_STRING(0, "object-dir", &opts.obj_dir,
80 N_("dir"),
81 N_("the object directory to store the graph")),
82 OPT_BOOL(0, "shallow", &opts.shallow,
83 N_("if the commit-graph is split, only verify the tip file")),
84 OPT_BOOL(0, "progress", &opts.progress, N_("force progress reporting")),
85 OPT_END(),
88 trace2_cmd_mode("verify");
90 opts.progress = isatty(2);
91 argc = parse_options(argc, argv, NULL,
92 builtin_commit_graph_verify_options,
93 builtin_commit_graph_verify_usage, 0);
95 if (!opts.obj_dir)
96 opts.obj_dir = get_object_directory();
97 if (opts.shallow)
98 flags |= COMMIT_GRAPH_VERIFY_SHALLOW;
99 if (opts.progress)
100 flags |= COMMIT_GRAPH_WRITE_PROGRESS;
102 odb = find_odb(the_repository, opts.obj_dir);
103 graph_name = get_commit_graph_filename(odb);
104 open_ok = open_commit_graph(graph_name, &fd, &st);
105 if (!open_ok && errno != ENOENT)
106 die_errno(_("Could not open commit-graph '%s'"), graph_name);
108 FREE_AND_NULL(graph_name);
110 if (open_ok)
111 graph = load_commit_graph_one_fd_st(the_repository, fd, &st, odb);
112 else
113 graph = read_commit_graph_one(the_repository, odb);
115 /* Return failure if open_ok predicted success */
116 if (!graph)
117 return !!open_ok;
119 UNLEAK(graph);
120 return verify_commit_graph(the_repository, graph, flags);
123 extern int read_replace_refs;
124 static struct commit_graph_opts write_opts;
126 static int write_option_parse_split(const struct option *opt, const char *arg,
127 int unset)
129 enum commit_graph_split_flags *flags = opt->value;
131 BUG_ON_OPT_NEG(unset);
133 opts.split = 1;
134 if (!arg)
135 return 0;
137 if (!strcmp(arg, "no-merge"))
138 *flags = COMMIT_GRAPH_SPLIT_MERGE_PROHIBITED;
139 else if (!strcmp(arg, "replace"))
140 *flags = COMMIT_GRAPH_SPLIT_REPLACE;
141 else
142 die(_("unrecognized --split argument, %s"), arg);
144 return 0;
147 static int read_one_commit(struct oidset *commits, struct progress *progress,
148 const char *hash)
150 struct object *result;
151 struct object_id oid;
152 const char *end;
154 if (parse_oid_hex(hash, &oid, &end))
155 return error(_("unexpected non-hex object ID: %s"), hash);
157 result = deref_tag(the_repository, parse_object(the_repository, &oid),
158 NULL, 0);
159 if (!result)
160 return error(_("invalid object: %s"), hash);
161 else if (object_as_type(result, OBJ_COMMIT, 1))
162 oidset_insert(commits, &result->oid);
164 display_progress(progress, oidset_size(commits));
166 return 0;
169 static int write_option_max_new_filters(const struct option *opt,
170 const char *arg,
171 int unset)
173 int *to = opt->value;
174 if (unset)
175 *to = -1;
176 else {
177 const char *s;
178 *to = strtol(arg, (char **)&s, 10);
179 if (*s)
180 return error(_("%s expects a numerical value"),
181 optname(opt, opt->flags));
183 return 0;
186 static int git_commit_graph_write_config(const char *var, const char *value,
187 void *cb)
189 if (!strcmp(var, "commitgraph.maxnewfilters"))
190 write_opts.max_new_filters = git_config_int(var, value);
192 * No need to fall-back to 'git_default_config', since this was already
193 * called in 'cmd_commit_graph()'.
195 return 0;
198 static int graph_write(int argc, const char **argv)
200 struct string_list pack_indexes = STRING_LIST_INIT_NODUP;
201 struct strbuf buf = STRBUF_INIT;
202 struct oidset commits = OIDSET_INIT;
203 struct object_directory *odb = NULL;
204 int result = 0;
205 enum commit_graph_write_flags flags = 0;
206 struct progress *progress = NULL;
208 static struct option builtin_commit_graph_write_options[] = {
209 OPT_STRING(0, "object-dir", &opts.obj_dir,
210 N_("dir"),
211 N_("the object directory to store the graph")),
212 OPT_BOOL(0, "reachable", &opts.reachable,
213 N_("start walk at all refs")),
214 OPT_BOOL(0, "stdin-packs", &opts.stdin_packs,
215 N_("scan pack-indexes listed by stdin for commits")),
216 OPT_BOOL(0, "stdin-commits", &opts.stdin_commits,
217 N_("start walk at commits listed by stdin")),
218 OPT_BOOL(0, "append", &opts.append,
219 N_("include all commits already in the commit-graph file")),
220 OPT_BOOL(0, "changed-paths", &opts.enable_changed_paths,
221 N_("enable computation for changed paths")),
222 OPT_BOOL(0, "progress", &opts.progress, N_("force progress reporting")),
223 OPT_CALLBACK_F(0, "split", &write_opts.split_flags, NULL,
224 N_("allow writing an incremental commit-graph file"),
225 PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
226 write_option_parse_split),
227 OPT_INTEGER(0, "max-commits", &write_opts.max_commits,
228 N_("maximum number of commits in a non-base split commit-graph")),
229 OPT_INTEGER(0, "size-multiple", &write_opts.size_multiple,
230 N_("maximum ratio between two levels of a split commit-graph")),
231 OPT_EXPIRY_DATE(0, "expire-time", &write_opts.expire_time,
232 N_("only expire files older than a given date-time")),
233 OPT_CALLBACK_F(0, "max-new-filters", &write_opts.max_new_filters,
234 NULL, N_("maximum number of changed-path Bloom filters to compute"),
235 0, write_option_max_new_filters),
236 OPT_END(),
239 opts.progress = isatty(2);
240 opts.enable_changed_paths = -1;
241 write_opts.size_multiple = 2;
242 write_opts.max_commits = 0;
243 write_opts.expire_time = 0;
244 write_opts.max_new_filters = -1;
246 trace2_cmd_mode("write");
248 git_config(git_commit_graph_write_config, &opts);
250 argc = parse_options(argc, argv, NULL,
251 builtin_commit_graph_write_options,
252 builtin_commit_graph_write_usage, 0);
254 if (opts.reachable + opts.stdin_packs + opts.stdin_commits > 1)
255 die(_("use at most one of --reachable, --stdin-commits, or --stdin-packs"));
256 if (!opts.obj_dir)
257 opts.obj_dir = get_object_directory();
258 if (opts.append)
259 flags |= COMMIT_GRAPH_WRITE_APPEND;
260 if (opts.split)
261 flags |= COMMIT_GRAPH_WRITE_SPLIT;
262 if (opts.progress)
263 flags |= COMMIT_GRAPH_WRITE_PROGRESS;
264 if (!opts.enable_changed_paths)
265 flags |= COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS;
266 if (opts.enable_changed_paths == 1 ||
267 git_env_bool(GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS, 0))
268 flags |= COMMIT_GRAPH_WRITE_BLOOM_FILTERS;
270 read_replace_refs = 0;
271 odb = find_odb(the_repository, opts.obj_dir);
273 if (opts.reachable) {
274 if (write_commit_graph_reachable(odb, flags, &write_opts))
275 return 1;
276 return 0;
279 if (opts.stdin_packs) {
280 while (strbuf_getline(&buf, stdin) != EOF)
281 string_list_append(&pack_indexes,
282 strbuf_detach(&buf, NULL));
283 } else if (opts.stdin_commits) {
284 oidset_init(&commits, 0);
285 if (opts.progress)
286 progress = start_delayed_progress(
287 _("Collecting commits from input"), 0);
289 while (strbuf_getline(&buf, stdin) != EOF) {
290 if (read_one_commit(&commits, progress, buf.buf)) {
291 result = 1;
292 goto cleanup;
296 stop_progress(&progress);
299 if (write_commit_graph(odb,
300 opts.stdin_packs ? &pack_indexes : NULL,
301 opts.stdin_commits ? &commits : NULL,
302 flags,
303 &write_opts))
304 result = 1;
306 cleanup:
307 string_list_clear(&pack_indexes, 0);
308 strbuf_release(&buf);
309 return result;
312 int cmd_commit_graph(int argc, const char **argv, const char *prefix)
314 static struct option builtin_commit_graph_options[] = {
315 OPT_STRING(0, "object-dir", &opts.obj_dir,
316 N_("dir"),
317 N_("the object directory to store the graph")),
318 OPT_END(),
321 if (argc == 2 && !strcmp(argv[1], "-h"))
322 usage_with_options(builtin_commit_graph_usage,
323 builtin_commit_graph_options);
325 git_config(git_default_config, NULL);
326 argc = parse_options(argc, argv, prefix,
327 builtin_commit_graph_options,
328 builtin_commit_graph_usage,
329 PARSE_OPT_STOP_AT_NON_OPTION);
331 save_commit_buffer = 0;
333 if (argc > 0) {
334 if (!strcmp(argv[0], "verify"))
335 return graph_verify(argc, argv);
336 if (!strcmp(argv[0], "write"))
337 return graph_write(argc, argv);
340 usage_with_options(builtin_commit_graph_usage,
341 builtin_commit_graph_options);