diff options
Diffstat (limited to 'submodule.c')
| -rw-r--r-- | submodule.c | 377 |
1 files changed, 313 insertions, 64 deletions
diff --git a/submodule.c b/submodule.c index 6415cc5..934ecfa 100644 --- a/submodule.c +++ b/submodule.c @@ -1,4 +1,3 @@ -#define NO_THE_INDEX_COMPATIBILITY_MACROS #include "cache.h" #include "repository.h" @@ -25,7 +24,6 @@ #include "commit-reach.h" static int config_update_recurse_submodules = RECURSE_SUBMODULES_OFF; -static struct string_list changed_submodule_names = STRING_LIST_INIT_DUP; static int initialized_fetch_ref_tips; static struct oid_array ref_tips_before_fetch; static struct oid_array ref_tips_after_fetch; @@ -457,7 +455,7 @@ static int prepare_submodule_summary(struct rev_info *rev, const char *path, return prepare_revision_walk(rev); } -static void print_submodule_summary(struct rev_info *rev, struct diff_options *o) +static void print_submodule_summary(struct repository *r, struct rev_info *rev, struct diff_options *o) { static const char format[] = " %m %s"; struct strbuf sb = STRBUF_INIT; @@ -468,7 +466,8 @@ static void print_submodule_summary(struct rev_info *rev, struct diff_options *o ctx.date_mode = rev->date_mode; ctx.output_encoding = get_log_output_encoding(); strbuf_setlen(&sb, 0); - format_commit_message(commit, format, &sb, &ctx); + repo_format_commit_message(r, commit, format, &sb, + &ctx); strbuf_addch(&sb, '\n'); if (commit->object.flags & SYMMETRIC_LEFT) diff_emit_submodule_del(o, sb.buf); @@ -495,14 +494,52 @@ void prepare_submodule_repo_env(struct argv_array *out) DEFAULT_GIT_DIR_ENVIRONMENT); } -/* Helper function to display the submodule header line prior to the full - * summary output. If it can locate the submodule objects directory it will - * attempt to lookup both the left and right commits and put them into the - * left and right pointers. +static void prepare_submodule_repo_env_in_gitdir(struct argv_array *out) +{ + prepare_submodule_repo_env_no_git_dir(out); + argv_array_pushf(out, "%s=.", GIT_DIR_ENVIRONMENT); +} + +/* + * Initialize a repository struct for a submodule based on the provided 'path'. + * + * Unlike repo_submodule_init, this tolerates submodules not present + * in .gitmodules. This function exists only to preserve historical behavior, + * + * Returns the repository struct on success, + * NULL when the submodule is not present. */ -static void show_submodule_header(struct diff_options *o, const char *path, +static struct repository *open_submodule(const char *path) +{ + struct strbuf sb = STRBUF_INIT; + struct repository *out = xmalloc(sizeof(*out)); + + if (submodule_to_gitdir(&sb, path) || repo_init(out, sb.buf, NULL)) { + strbuf_release(&sb); + free(out); + return NULL; + } + + /* Mark it as a submodule */ + out->submodule_prefix = xstrdup(path); + + strbuf_release(&sb); + return out; +} + +/* + * Helper function to display the submodule header line prior to the full + * summary output. + * + * If it can locate the submodule git directory it will create a repository + * handle for the submodule and lookup both the left and right commits and + * put them into the left and right pointers. + */ +static void show_submodule_header(struct diff_options *o, + const char *path, struct object_id *one, struct object_id *two, unsigned dirty_submodule, + struct repository *sub, struct commit **left, struct commit **right, struct commit_list **merge_bases) { @@ -521,7 +558,7 @@ static void show_submodule_header(struct diff_options *o, const char *path, else if (is_null_oid(two)) message = "(submodule deleted)"; - if (add_submodule_odb(path)) { + if (!sub) { if (!message) message = "(commits not present)"; goto output_header; @@ -531,8 +568,8 @@ static void show_submodule_header(struct diff_options *o, const char *path, * Attempt to lookup the commit references, and determine if this is * a fast forward or fast backwards update. */ - *left = lookup_commit_reference(the_repository, one); - *right = lookup_commit_reference(the_repository, two); + *left = lookup_commit_reference(sub, one); + *right = lookup_commit_reference(sub, two); /* * Warn about missing commits in the submodule project, but only if @@ -542,7 +579,7 @@ static void show_submodule_header(struct diff_options *o, const char *path, (!is_null_oid(two) && !*right)) message = "(commits not present)"; - *merge_bases = get_merge_bases(*left, *right); + *merge_bases = repo_get_merge_bases(sub, *left, *right); if (*merge_bases) { if ((*merge_bases)->item == *left) fast_forward = 1; @@ -576,16 +613,18 @@ void show_submodule_summary(struct diff_options *o, const char *path, struct rev_info rev; struct commit *left = NULL, *right = NULL; struct commit_list *merge_bases = NULL; + struct repository *sub; + sub = open_submodule(path); show_submodule_header(o, path, one, two, dirty_submodule, - &left, &right, &merge_bases); + sub, &left, &right, &merge_bases); /* * If we don't have both a left and a right pointer, there is no * reason to try and display a summary. The header line should contain * all the information the user needs. */ - if (!left || !right) + if (!left || !right || !sub) goto out; /* Treat revision walker failure the same as missing commits */ @@ -594,13 +633,17 @@ void show_submodule_summary(struct diff_options *o, const char *path, goto out; } - print_submodule_summary(&rev, o); + print_submodule_summary(sub, &rev, o); out: if (merge_bases) free_commit_list(merge_bases); clear_commit_marks(left, ~0); clear_commit_marks(right, ~0); + if (sub) { + repo_clear(sub); + free(sub); + } } void show_submodule_inline_diff(struct diff_options *o, const char *path, @@ -612,9 +655,11 @@ void show_submodule_inline_diff(struct diff_options *o, const char *path, struct commit_list *merge_bases = NULL; struct child_process cp = CHILD_PROCESS_INIT; struct strbuf sb = STRBUF_INIT; + struct repository *sub; + sub = open_submodule(path); show_submodule_header(o, path, one, two, dirty_submodule, - &left, &right, &merge_bases); + sub, &left, &right, &merge_bases); /* We need a valid left and right commit to display a difference */ if (!(left || is_null_oid(one)) || @@ -675,6 +720,10 @@ done: clear_commit_marks(left, ~0); if (right) clear_commit_marks(right, ~0); + if (sub) { + repo_clear(sub); + free(sub); + } } int should_update_submodules(void) @@ -999,9 +1048,6 @@ static int push_submodule(const char *path, const struct string_list *push_options, int dry_run) { - if (add_submodule_odb(path)) - return 1; - if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) { struct child_process cp = CHILD_PROCESS_INIT; argv_array_push(&cp.args, "push"); @@ -1136,11 +1182,11 @@ void check_for_new_submodule_commits(struct object_id *oid) oid_array_append(&ref_tips_after_fetch, oid); } -static void calculate_changed_submodule_paths(struct repository *r) +static void calculate_changed_submodule_paths(struct repository *r, + struct string_list *changed_submodule_names) { struct argv_array argv = ARGV_ARRAY_INIT; - struct string_list changed_submodules = STRING_LIST_INIT_DUP; - const struct string_list_item *name; + struct string_list_item *name; /* No need to check if there are no submodules configured */ if (!submodule_from_path(r, NULL, NULL)) @@ -1157,9 +1203,9 @@ static void calculate_changed_submodule_paths(struct repository *r) * Collect all submodules (whether checked out or not) for which new * commits have been recorded upstream in "changed_submodule_names". */ - collect_changed_submodules(r, &changed_submodules, &argv); + collect_changed_submodules(r, changed_submodule_names, &argv); - for_each_string_list_item(name, &changed_submodules) { + for_each_string_list_item(name, changed_submodule_names) { struct oid_array *commits = name->util; const struct submodule *submodule; const char *path = NULL; @@ -1173,11 +1219,14 @@ static void calculate_changed_submodule_paths(struct repository *r) if (!path) continue; - if (!submodule_has_commits(r, path, commits)) - string_list_append(&changed_submodule_names, name->string); + if (submodule_has_commits(r, path, commits)) { + oid_array_clear(commits); + *name->string = '\0'; + } } - free_submodules_oids(&changed_submodules); + string_list_remove_empty_items(changed_submodule_names, 1); + argv_array_clear(&argv); oid_array_clear(&ref_tips_before_fetch); oid_array_clear(&ref_tips_after_fetch); @@ -1221,8 +1270,16 @@ struct submodule_parallel_fetch { int default_option; int quiet; int result; + + struct string_list changed_submodule_names; + + /* Pending fetches by OIDs */ + struct fetch_task **oid_fetch_tasks; + int oid_fetch_tasks_nr, oid_fetch_tasks_alloc; }; -#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0} +#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0, \ + STRING_LIST_INIT_DUP, \ + NULL, 0, 0} static int get_fetch_recurse_config(const struct submodule *submodule, struct submodule_parallel_fetch *spf) @@ -1249,40 +1306,126 @@ static int get_fetch_recurse_config(const struct submodule *submodule, return spf->default_option; } +/* + * Fetch in progress (if callback data) or + * pending (if in oid_fetch_tasks in struct submodule_parallel_fetch) + */ +struct fetch_task { + struct repository *repo; + const struct submodule *sub; + unsigned free_sub : 1; /* Do we need to free the submodule? */ + + struct oid_array *commits; /* Ensure these commits are fetched */ +}; + +/** + * When a submodule is not defined in .gitmodules, we cannot access it + * via the regular submodule-config. Create a fake submodule, which we can + * work on. + */ +static const struct submodule *get_non_gitmodules_submodule(const char *path) +{ + struct submodule *ret = NULL; + const char *name = default_name_or_path(path); + + if (!name) + return NULL; + + ret = xmalloc(sizeof(*ret)); + memset(ret, 0, sizeof(*ret)); + ret->path = name; + ret->name = name; + + return (const struct submodule *) ret; +} + +static struct fetch_task *fetch_task_create(struct repository *r, + const char *path) +{ + struct fetch_task *task = xmalloc(sizeof(*task)); + memset(task, 0, sizeof(*task)); + + task->sub = submodule_from_path(r, &null_oid, path); + if (!task->sub) { + /* + * No entry in .gitmodules? Technically not a submodule, + * but historically we supported repositories that happen to be + * in-place where a gitlink is. Keep supporting them. + */ + task->sub = get_non_gitmodules_submodule(path); + if (!task->sub) { + free(task); + return NULL; + } + + task->free_sub = 1; + } + + return task; +} + +static void fetch_task_release(struct fetch_task *p) +{ + if (p->free_sub) + free((void*)p->sub); + p->free_sub = 0; + p->sub = NULL; + + if (p->repo) + repo_clear(p->repo); + FREE_AND_NULL(p->repo); +} + +static struct repository *get_submodule_repo_for(struct repository *r, + const struct submodule *sub) +{ + struct repository *ret = xmalloc(sizeof(*ret)); + + if (repo_submodule_init(ret, r, sub)) { + /* + * No entry in .gitmodules? Technically not a submodule, + * but historically we supported repositories that happen to be + * in-place where a gitlink is. Keep supporting them. + */ + struct strbuf gitdir = STRBUF_INIT; + strbuf_repo_worktree_path(&gitdir, r, "%s/.git", sub->path); + if (repo_init(ret, gitdir.buf, NULL)) { + strbuf_release(&gitdir); + free(ret); + return NULL; + } + strbuf_release(&gitdir); + } + + return ret; +} + static int get_next_submodule(struct child_process *cp, struct strbuf *err, void *data, void **task_cb) { - int ret = 0; struct submodule_parallel_fetch *spf = data; for (; spf->count < spf->r->index->cache_nr; spf->count++) { - struct strbuf submodule_path = STRBUF_INIT; - struct strbuf submodule_git_dir = STRBUF_INIT; - struct strbuf submodule_prefix = STRBUF_INIT; const struct cache_entry *ce = spf->r->index->cache[spf->count]; - const char *git_dir, *default_argv; - const struct submodule *submodule; - struct submodule default_submodule = SUBMODULE_INIT; + const char *default_argv; + struct fetch_task *task; if (!S_ISGITLINK(ce->ce_mode)) continue; - submodule = submodule_from_path(spf->r, &null_oid, ce->name); - if (!submodule) { - const char *name = default_name_or_path(ce->name); - if (name) { - default_submodule.path = default_submodule.name = name; - submodule = &default_submodule; - } - } + task = fetch_task_create(spf->r, ce->name); + if (!task) + continue; - switch (get_fetch_recurse_config(submodule, spf)) + switch (get_fetch_recurse_config(task->sub, spf)) { default: case RECURSE_SUBMODULES_DEFAULT: case RECURSE_SUBMODULES_ON_DEMAND: - if (!submodule || !unsorted_string_list_lookup(&changed_submodule_names, - submodule->name)) + if (!task->sub || + !string_list_lookup( + &spf->changed_submodule_names, + task->sub->name)) continue; default_argv = "on-demand"; break; @@ -1293,16 +1436,12 @@ static int get_next_submodule(struct child_process *cp, continue; } - strbuf_repo_worktree_path(&submodule_path, spf->r, "%s", ce->name); - strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf); - strbuf_addf(&submodule_prefix, "%s%s/", spf->prefix, ce->name); - git_dir = read_gitfile(submodule_git_dir.buf); - if (!git_dir) - git_dir = submodule_git_dir.buf; - if (is_directory(git_dir)) { + task->repo = get_submodule_repo_for(spf->r, task->sub); + if (task->repo) { + struct strbuf submodule_prefix = STRBUF_INIT; child_process_init(cp); - cp->dir = strbuf_detach(&submodule_path, NULL); - prepare_submodule_repo_env(&cp->env_array); + cp->dir = task->repo->gitdir; + prepare_submodule_repo_env_in_gitdir(&cp->env_array); cp->git_cmd = 1; if (!spf->quiet) strbuf_addf(err, "Fetching submodule %s%s\n", @@ -1311,17 +1450,66 @@ static int get_next_submodule(struct child_process *cp, argv_array_pushv(&cp->args, spf->args.argv); argv_array_push(&cp->args, default_argv); argv_array_push(&cp->args, "--submodule-prefix"); + + strbuf_addf(&submodule_prefix, "%s%s/", + spf->prefix, + task->sub->path); argv_array_push(&cp->args, submodule_prefix.buf); - ret = 1; - } - strbuf_release(&submodule_path); - strbuf_release(&submodule_git_dir); - strbuf_release(&submodule_prefix); - if (ret) { + spf->count++; + *task_cb = task; + + strbuf_release(&submodule_prefix); return 1; + } else { + + fetch_task_release(task); + free(task); + + /* + * An empty directory is normal, + * the submodule is not initialized + */ + if (S_ISGITLINK(ce->ce_mode) && + !is_empty_dir(ce->name)) { + spf->result = 1; + strbuf_addf(err, + _("Could not access submodule '%s'"), + ce->name); + } } } + + if (spf->oid_fetch_tasks_nr) { + struct fetch_task *task = + spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr - 1]; + struct strbuf submodule_prefix = STRBUF_INIT; + spf->oid_fetch_tasks_nr--; + + strbuf_addf(&submodule_prefix, "%s%s/", + spf->prefix, task->sub->path); + + child_process_init(cp); + prepare_submodule_repo_env_in_gitdir(&cp->env_array); + cp->git_cmd = 1; + cp->dir = task->repo->gitdir; + + argv_array_init(&cp->args); + argv_array_pushv(&cp->args, spf->args.argv); + argv_array_push(&cp->args, "on-demand"); + argv_array_push(&cp->args, "--submodule-prefix"); + argv_array_push(&cp->args, submodule_prefix.buf); + + /* NEEDSWORK: have get_default_remote from submodule--helper */ + argv_array_push(&cp->args, "origin"); + oid_array_for_each_unique(task->commits, + append_oid_to_argv, &cp->args); + + *task_cb = task; + strbuf_release(&submodule_prefix); + return 1; + } + return 0; } @@ -1329,20 +1517,66 @@ static int fetch_start_failure(struct strbuf *err, void *cb, void *task_cb) { struct submodule_parallel_fetch *spf = cb; + struct fetch_task *task = task_cb; spf->result = 1; + fetch_task_release(task); return 0; } +static int commit_missing_in_sub(const struct object_id *oid, void *data) +{ + struct repository *subrepo = data; + + enum object_type type = oid_object_info(subrepo, oid, NULL); + + return type != OBJ_COMMIT; +} + static int fetch_finish(int retvalue, struct strbuf *err, void *cb, void *task_cb) { struct submodule_parallel_fetch *spf = cb; + struct fetch_task *task = task_cb; + + struct string_list_item *it; + struct oid_array *commits; if (retvalue) spf->result = 1; + if (!task || !task->sub) + BUG("callback cookie bogus"); + + /* Is this the second time we process this submodule? */ + if (task->commits) + goto out; + + it = string_list_lookup(&spf->changed_submodule_names, task->sub->name); + if (!it) + /* Could be an unchanged submodule, not contained in the list */ + goto out; + + commits = it->util; + oid_array_filter(commits, + commit_missing_in_sub, + task->repo); + + /* Are there commits we want, but do not exist? */ + if (commits->nr) { + task->commits = commits; + ALLOC_GROW(spf->oid_fetch_tasks, + spf->oid_fetch_tasks_nr + 1, + spf->oid_fetch_tasks_alloc); + spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr] = task; + spf->oid_fetch_tasks_nr++; + return 0; + } + +out: + fetch_task_release(task); + return 0; } @@ -1373,7 +1607,8 @@ int fetch_populated_submodules(struct repository *r, argv_array_push(&spf.args, "--recurse-submodules-default"); /* default value, "--submodule-prefix" and its value are added later */ - calculate_changed_submodule_paths(r); + calculate_changed_submodule_paths(r, &spf.changed_submodule_names); + string_list_sort(&spf.changed_submodule_names); run_processes_parallel(max_parallel_jobs, get_next_submodule, fetch_start_failure, @@ -1382,7 +1617,7 @@ int fetch_populated_submodules(struct repository *r, argv_array_clear(&spf.args); out: - string_list_clear(&changed_submodule_names, 1); + free_submodules_oids(&spf.changed_submodule_names); return spf.result; } @@ -1561,6 +1796,18 @@ out: return ret; } +void submodule_unset_core_worktree(const struct submodule *sub) +{ + char *config_path = xstrfmt("%s/modules/%s/config", + get_git_common_dir(), sub->name); + + if (git_config_set_in_file_gently(config_path, "core.worktree", NULL)) + warning(_("Could not unset core.worktree setting in submodule '%s'"), + sub->path); + + free(config_path); +} + static const char *get_super_prefix_or_empty(void) { const char *s = get_super_prefix(); @@ -1726,6 +1973,8 @@ int submodule_move_head(const char *path, if (is_empty_dir(path)) rmdir_or_warn(path); + + submodule_unset_core_worktree(sub); } } out: |