diff options
author | Junio C Hamano <gitster@pobox.com> | 2018-09-17 23:53:51 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2018-09-17 23:53:51 +0300 |
commit | 4d6d6ef1fcce0e7d1fd2d3d38c2372998a105e96 (patch) | |
tree | cb82c3f9f48a15e4587de3631d67304616090895 /builtin/submodule--helper.c | |
parent | 39006893f9fce70d8d2fe055e4285e1fca0ca050 (diff) | |
parent | ee69b2a90c5031bffb3341c5e50653a6ecca89ac (diff) |
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
Diffstat (limited to 'builtin/submodule--helper.c')
-rw-r--r-- | builtin/submodule--helper.c | 192 |
1 files changed, 158 insertions, 34 deletions
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index f6fb8991f3..40844870cf 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c @@ -1443,6 +1443,72 @@ static int module_clone(int argc, const char **argv, const char *prefix) return 0; } +static void determine_submodule_update_strategy(struct repository *r, + int just_cloned, + const char *path, + const char *update, + struct submodule_update_strategy *out) +{ + const struct submodule *sub = submodule_from_path(r, &null_oid, path); + char *key; + const char *val; + + key = xstrfmt("submodule.%s.update", sub->name); + + if (update) { + trace_printf("parsing update"); + if (parse_submodule_update_strategy(update, out) < 0) + die(_("Invalid update mode '%s' for submodule path '%s'"), + update, path); + } else if (!repo_config_get_string_const(r, key, &val)) { + if (parse_submodule_update_strategy(val, out) < 0) + die(_("Invalid update mode '%s' configured for submodule path '%s'"), + val, path); + } else if (sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) { + trace_printf("loaded thing"); + out->type = sub->update_strategy.type; + out->command = sub->update_strategy.command; + } else + out->type = SM_UPDATE_CHECKOUT; + + if (just_cloned && + (out->type == SM_UPDATE_MERGE || + out->type == SM_UPDATE_REBASE || + out->type == SM_UPDATE_NONE)) + out->type = SM_UPDATE_CHECKOUT; + + free(key); +} + +static int module_update_module_mode(int argc, const char **argv, const char *prefix) +{ + const char *path, *update = NULL; + int just_cloned; + struct submodule_update_strategy update_strategy = { .type = SM_UPDATE_CHECKOUT }; + + if (argc < 3 || argc > 4) + die("submodule--helper update-module-clone expects <just-cloned> <path> [<update>]"); + + just_cloned = git_config_int("just_cloned", argv[1]); + path = argv[2]; + + if (argc == 4) + update = argv[3]; + + determine_submodule_update_strategy(the_repository, + just_cloned, path, update, + &update_strategy); + fputs(submodule_strategy_to_string(&update_strategy), stdout); + + return 0; +} + +struct update_clone_data { + const struct submodule *sub; + struct object_id oid; + unsigned just_cloned; +}; + struct submodule_update_clone { /* index into 'list', the list of submodules to look into for cloning */ int current; @@ -1462,8 +1528,9 @@ struct submodule_update_clone { const char *recursive_prefix; const char *prefix; - /* Machine-readable status lines to be consumed by git-submodule.sh */ - struct string_list projectlines; + /* to be consumed by git-submodule.sh */ + struct update_clone_data *update_clone; + int update_clone_nr; int update_clone_alloc; /* If we want to stop as fast as possible and return an error */ unsigned quickstop : 1; @@ -1471,11 +1538,13 @@ struct submodule_update_clone { /* failed clones to be retried again */ const struct cache_entry **failed_clones; int failed_clones_nr, failed_clones_alloc; + + int max_jobs; }; #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \ SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, 0, \ NULL, NULL, NULL, \ - STRING_LIST_INIT_DUP, 0, NULL, 0, 0} + NULL, 0, 0, 0, NULL, 0, 0, 0} static void next_submodule_warn_missing(struct submodule_update_clone *suc, @@ -1569,11 +1638,12 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce, strbuf_addf(&sb, "%s/.git", ce->name); needs_cloning = !file_exists(sb.buf); - strbuf_reset(&sb); - strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode, - oid_to_hex(&ce->oid), ce_stage(ce), - needs_cloning, ce->name); - string_list_append(&suc->projectlines, sb.buf); + ALLOC_GROW(suc->update_clone, suc->update_clone_nr + 1, + suc->update_clone_alloc); + oidcpy(&suc->update_clone[suc->update_clone_nr].oid, &ce->oid); + suc->update_clone[suc->update_clone_nr].just_cloned = needs_cloning; + suc->update_clone[suc->update_clone_nr].sub = sub; + suc->update_clone_nr++; if (!needs_cloning) goto cleanup; @@ -1714,11 +1784,44 @@ static int git_update_clone_config(const char *var, const char *value, return 0; } +static void update_submodule(struct update_clone_data *ucd) +{ + fprintf(stdout, "dummy %s %d\t%s\n", + oid_to_hex(&ucd->oid), + ucd->just_cloned, + ucd->sub->path); +} + +static int update_submodules(struct submodule_update_clone *suc) +{ + int i; + + run_processes_parallel(suc->max_jobs, + update_clone_get_next_task, + update_clone_start_failure, + update_clone_task_finished, + suc); + + /* + * We saved the output and put it out all at once now. + * That means: + * - the listener does not have to interleave their (checkout) + * work with our fetching. The writes involved in a + * checkout involve more straightforward sequential I/O. + * - the listener can avoid doing any work if fetching failed. + */ + if (suc->quickstop) + return 1; + + for (i = 0; i < suc->update_clone_nr; i++) + update_submodule(&suc->update_clone[i]); + + return 0; +} + static int update_clone(int argc, const char **argv, const char *prefix) { const char *update = NULL; - int max_jobs = 1; - struct string_list_item *item; struct pathspec pathspec; struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT; @@ -1740,7 +1843,7 @@ static int update_clone(int argc, const char **argv, const char *prefix) OPT_STRING(0, "depth", &suc.depth, "<depth>", N_("Create a shallow clone truncated to the " "specified number of revisions")), - OPT_INTEGER('j', "jobs", &max_jobs, + OPT_INTEGER('j', "jobs", &suc.max_jobs, N_("parallel jobs")), OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow, N_("whether the initial clone should follow the shallow recommendation")), @@ -1756,8 +1859,8 @@ static int update_clone(int argc, const char **argv, const char *prefix) }; suc.prefix = prefix; - update_clone_config_from_gitmodules(&max_jobs); - git_config(git_update_clone_config, &max_jobs); + update_clone_config_from_gitmodules(&suc.max_jobs); + git_config(git_update_clone_config, &suc.max_jobs); argc = parse_options(argc, argv, prefix, module_update_clone_options, git_submodule_helper_usage, 0); @@ -1772,27 +1875,7 @@ static int update_clone(int argc, const char **argv, const char *prefix) if (pathspec.nr) suc.warn_if_uninitialized = 1; - run_processes_parallel(max_jobs, - update_clone_get_next_task, - update_clone_start_failure, - update_clone_task_finished, - &suc); - - /* - * We saved the output and put it out all at once now. - * That means: - * - the listener does not have to interleave their (checkout) - * work with our fetching. The writes involved in a - * checkout involve more straightforward sequential I/O. - * - the listener can avoid doing any work if fetching failed. - */ - if (suc.quickstop) - return 1; - - for_each_string_list_item(item, &suc.projectlines) - fprintf(stdout, "%s", item->string); - - return 0; + return update_submodules(&suc); } static int resolve_relative_path(int argc, const char **argv, const char *prefix) @@ -1938,6 +2021,45 @@ static int push_check(int argc, const char **argv, const char *prefix) return 0; } +static int ensure_core_worktree(int argc, const char **argv, const char *prefix) +{ + const struct submodule *sub; + const char *path; + char *cw; + struct repository subrepo; + + if (argc != 2) + BUG("submodule--helper connect-gitdir-workingtree <name> <path>"); + + path = argv[1]; + + sub = submodule_from_path(the_repository, &null_oid, path); + if (!sub) + BUG("We could get the submodule handle before?"); + + if (repo_submodule_init(&subrepo, the_repository, path)) + die(_("could not get a repository handle for submodule '%s'"), path); + + if (!repo_config_get_string(&subrepo, "core.worktree", &cw)) { + char *cfg_file, *abs_path; + const char *rel_path; + struct strbuf sb = STRBUF_INIT; + + cfg_file = repo_git_path(&subrepo, "config"); + + abs_path = absolute_pathdup(path); + rel_path = relative_path(abs_path, subrepo.gitdir, &sb); + + git_config_set_in_file(cfg_file, "core.worktree", rel_path); + + free(cfg_file); + free(abs_path); + strbuf_release(&sb); + } + + return 0; +} + static int absorb_git_dirs(int argc, const char **argv, const char *prefix) { int i; @@ -2015,7 +2137,9 @@ static struct cmd_struct commands[] = { {"list", module_list, 0}, {"name", module_name, 0}, {"clone", module_clone, 0}, + {"update-module-mode", module_update_module_mode, 0}, {"update-clone", update_clone, 0}, + {"ensure-core-worktree", ensure_core_worktree, 0}, {"relative-path", resolve_relative_path, 0}, {"resolve-relative-url", resolve_relative_url, 0}, {"resolve-relative-url-test", resolve_relative_url_test, 0}, |