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Merge branch 'sb/submodule-update-in-c'
"git submodule update" is getting rewritten piece-by-piece into C. * sb/submodule-update-in-c: submodule--helper: introduce new update-module-mode helper submodule--helper: replace connect-gitdir-workingtree by ensure-core-worktree builtin/submodule--helper: factor out method to update a single submodule builtin/submodule--helper: store update_clone information in a struct builtin/submodule--helper: factor out submodule updating git-submodule.sh: rename unused variables git-submodule.sh: align error reporting for update mode to use path
This commit is contained in:
Junio C Hamano
commit
4d6d6ef1fc
@ -1443,6 +1443,72 @@ static int module_clone(int argc, const char **argv, const char *prefix)
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return 0;
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}
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static void determine_submodule_update_strategy(struct repository *r,
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int just_cloned,
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const char *path,
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const char *update,
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struct submodule_update_strategy *out)
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{
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const struct submodule *sub = submodule_from_path(r, &null_oid, path);
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char *key;
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const char *val;
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key = xstrfmt("submodule.%s.update", sub->name);
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if (update) {
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trace_printf("parsing update");
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if (parse_submodule_update_strategy(update, out) < 0)
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die(_("Invalid update mode '%s' for submodule path '%s'"),
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update, path);
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} else if (!repo_config_get_string_const(r, key, &val)) {
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if (parse_submodule_update_strategy(val, out) < 0)
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die(_("Invalid update mode '%s' configured for submodule path '%s'"),
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val, path);
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} else if (sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
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trace_printf("loaded thing");
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out->type = sub->update_strategy.type;
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out->command = sub->update_strategy.command;
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} else
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out->type = SM_UPDATE_CHECKOUT;
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if (just_cloned &&
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(out->type == SM_UPDATE_MERGE ||
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out->type == SM_UPDATE_REBASE ||
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out->type == SM_UPDATE_NONE))
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out->type = SM_UPDATE_CHECKOUT;
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free(key);
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}
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static int module_update_module_mode(int argc, const char **argv, const char *prefix)
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{
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const char *path, *update = NULL;
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int just_cloned;
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struct submodule_update_strategy update_strategy = { .type = SM_UPDATE_CHECKOUT };
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if (argc < 3 || argc > 4)
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die("submodule--helper update-module-clone expects <just-cloned> <path> [<update>]");
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just_cloned = git_config_int("just_cloned", argv[1]);
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path = argv[2];
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if (argc == 4)
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update = argv[3];
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determine_submodule_update_strategy(the_repository,
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just_cloned, path, update,
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&update_strategy);
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fputs(submodule_strategy_to_string(&update_strategy), stdout);
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return 0;
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}
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struct update_clone_data {
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const struct submodule *sub;
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struct object_id oid;
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unsigned just_cloned;
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};
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struct submodule_update_clone {
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/* index into 'list', the list of submodules to look into for cloning */
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int current;
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@ -1462,8 +1528,9 @@ struct submodule_update_clone {
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const char *recursive_prefix;
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const char *prefix;
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/* Machine-readable status lines to be consumed by git-submodule.sh */
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struct string_list projectlines;
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/* to be consumed by git-submodule.sh */
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struct update_clone_data *update_clone;
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int update_clone_nr; int update_clone_alloc;
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/* If we want to stop as fast as possible and return an error */
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unsigned quickstop : 1;
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@ -1471,11 +1538,13 @@ struct submodule_update_clone {
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/* failed clones to be retried again */
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const struct cache_entry **failed_clones;
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int failed_clones_nr, failed_clones_alloc;
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int max_jobs;
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};
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#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
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SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, 0, \
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NULL, NULL, NULL, \
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STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
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NULL, 0, 0, 0, NULL, 0, 0, 0}
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static void next_submodule_warn_missing(struct submodule_update_clone *suc,
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@ -1569,11 +1638,12 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
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strbuf_addf(&sb, "%s/.git", ce->name);
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needs_cloning = !file_exists(sb.buf);
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strbuf_reset(&sb);
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strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
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oid_to_hex(&ce->oid), ce_stage(ce),
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needs_cloning, ce->name);
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string_list_append(&suc->projectlines, sb.buf);
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ALLOC_GROW(suc->update_clone, suc->update_clone_nr + 1,
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suc->update_clone_alloc);
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oidcpy(&suc->update_clone[suc->update_clone_nr].oid, &ce->oid);
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suc->update_clone[suc->update_clone_nr].just_cloned = needs_cloning;
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suc->update_clone[suc->update_clone_nr].sub = sub;
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suc->update_clone_nr++;
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if (!needs_cloning)
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goto cleanup;
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@ -1714,11 +1784,44 @@ static int git_update_clone_config(const char *var, const char *value,
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return 0;
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}
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static void update_submodule(struct update_clone_data *ucd)
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{
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fprintf(stdout, "dummy %s %d\t%s\n",
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oid_to_hex(&ucd->oid),
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ucd->just_cloned,
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ucd->sub->path);
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}
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static int update_submodules(struct submodule_update_clone *suc)
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{
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int i;
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run_processes_parallel(suc->max_jobs,
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update_clone_get_next_task,
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update_clone_start_failure,
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update_clone_task_finished,
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suc);
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/*
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* We saved the output and put it out all at once now.
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* That means:
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* - the listener does not have to interleave their (checkout)
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* work with our fetching. The writes involved in a
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* checkout involve more straightforward sequential I/O.
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* - the listener can avoid doing any work if fetching failed.
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*/
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if (suc->quickstop)
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return 1;
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for (i = 0; i < suc->update_clone_nr; i++)
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update_submodule(&suc->update_clone[i]);
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return 0;
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}
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static int update_clone(int argc, const char **argv, const char *prefix)
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{
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const char *update = NULL;
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int max_jobs = 1;
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struct string_list_item *item;
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struct pathspec pathspec;
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struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
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@ -1740,7 +1843,7 @@ static int update_clone(int argc, const char **argv, const char *prefix)
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OPT_STRING(0, "depth", &suc.depth, "<depth>",
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N_("Create a shallow clone truncated to the "
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"specified number of revisions")),
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OPT_INTEGER('j', "jobs", &max_jobs,
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OPT_INTEGER('j', "jobs", &suc.max_jobs,
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N_("parallel jobs")),
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OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
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N_("whether the initial clone should follow the shallow recommendation")),
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@ -1756,8 +1859,8 @@ static int update_clone(int argc, const char **argv, const char *prefix)
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};
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suc.prefix = prefix;
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update_clone_config_from_gitmodules(&max_jobs);
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git_config(git_update_clone_config, &max_jobs);
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update_clone_config_from_gitmodules(&suc.max_jobs);
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git_config(git_update_clone_config, &suc.max_jobs);
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argc = parse_options(argc, argv, prefix, module_update_clone_options,
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git_submodule_helper_usage, 0);
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@ -1772,27 +1875,7 @@ static int update_clone(int argc, const char **argv, const char *prefix)
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if (pathspec.nr)
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suc.warn_if_uninitialized = 1;
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run_processes_parallel(max_jobs,
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update_clone_get_next_task,
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update_clone_start_failure,
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update_clone_task_finished,
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&suc);
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/*
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* We saved the output and put it out all at once now.
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* That means:
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* - the listener does not have to interleave their (checkout)
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* work with our fetching. The writes involved in a
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* checkout involve more straightforward sequential I/O.
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* - the listener can avoid doing any work if fetching failed.
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*/
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if (suc.quickstop)
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return 1;
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for_each_string_list_item(item, &suc.projectlines)
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fprintf(stdout, "%s", item->string);
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return 0;
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return update_submodules(&suc);
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}
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static int resolve_relative_path(int argc, const char **argv, const char *prefix)
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@ -1938,6 +2021,45 @@ static int push_check(int argc, const char **argv, const char *prefix)
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return 0;
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}
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static int ensure_core_worktree(int argc, const char **argv, const char *prefix)
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{
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const struct submodule *sub;
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const char *path;
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char *cw;
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struct repository subrepo;
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if (argc != 2)
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BUG("submodule--helper connect-gitdir-workingtree <name> <path>");
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path = argv[1];
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sub = submodule_from_path(the_repository, &null_oid, path);
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if (!sub)
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BUG("We could get the submodule handle before?");
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if (repo_submodule_init(&subrepo, the_repository, path))
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die(_("could not get a repository handle for submodule '%s'"), path);
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if (!repo_config_get_string(&subrepo, "core.worktree", &cw)) {
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char *cfg_file, *abs_path;
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const char *rel_path;
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struct strbuf sb = STRBUF_INIT;
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cfg_file = repo_git_path(&subrepo, "config");
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abs_path = absolute_pathdup(path);
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rel_path = relative_path(abs_path, subrepo.gitdir, &sb);
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git_config_set_in_file(cfg_file, "core.worktree", rel_path);
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free(cfg_file);
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free(abs_path);
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strbuf_release(&sb);
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}
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return 0;
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}
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static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
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{
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int i;
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@ -2015,7 +2137,9 @@ static struct cmd_struct commands[] = {
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{"list", module_list, 0},
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{"name", module_name, 0},
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{"clone", module_clone, 0},
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{"update-module-mode", module_update_module_mode, 0},
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{"update-clone", update_clone, 0},
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{"ensure-core-worktree", ensure_core_worktree, 0},
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{"relative-path", resolve_relative_path, 0},
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{"resolve-relative-url", resolve_relative_url, 0},
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{"resolve-relative-url-test", resolve_relative_url_test, 0},
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@ -534,31 +534,19 @@ cmd_update()
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"$@" || echo "#unmatched" $?
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} | {
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err=
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while read -r mode sha1 stage just_cloned sm_path
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while read -r quickabort sha1 just_cloned sm_path
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do
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die_if_unmatched "$mode" "$sha1"
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die_if_unmatched "$quickabort" "$sha1"
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name=$(git submodule--helper name "$sm_path") || exit
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if ! test -z "$update"
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then
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update_module=$update
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else
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update_module=$(git config submodule."$name".update)
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if test -z "$update_module"
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then
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update_module="checkout"
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fi
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fi
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git submodule--helper ensure-core-worktree "$sm_path"
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update_module=$(git submodule--helper update-module-mode $just_cloned "$sm_path" $update)
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displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
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if test $just_cloned -eq 1
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then
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subsha1=
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case "$update_module" in
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merge | rebase | none)
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update_module=checkout ;;
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esac
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else
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subsha1=$(sanitize_submodule_env; cd "$sm_path" &&
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git rev-parse --verify HEAD) ||
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@ -630,7 +618,7 @@ cmd_update()
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must_die_on_failure=yes
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;;
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*)
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die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
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die "$(eval_gettext "Invalid update mode '$update_module' for submodule path '$path'")"
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esac
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if (sanitize_submodule_env; cd "$sm_path" && $command "$sha1")
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