diff options
Diffstat (limited to 'src/submodule.c')
-rw-r--r-- | src/submodule.c | 335 |
1 files changed, 209 insertions, 126 deletions
diff --git a/src/submodule.c b/src/submodule.c index 86ad53be0..6c3e5f6bd 100644 --- a/src/submodule.c +++ b/src/submodule.c @@ -5,7 +5,8 @@ * a Linking Exception. For full terms see the included COPYING file. */ -#include "common.h" +#include "submodule.h" + #include "git2/config.h" #include "git2/sys/config.h" #include "git2/types.h" @@ -17,11 +18,11 @@ #include "config_file.h" #include "config.h" #include "repository.h" -#include "submodule.h" #include "tree.h" #include "iterator.h" #include "path.h" #include "index.h" +#include "worktree.h" #define GIT_MODULES_FILE ".gitmodules" @@ -124,8 +125,8 @@ static void submodule_set_lookup_error(int error, const char *name) return; giterr_set(GITERR_SUBMODULE, (error == GIT_ENOTFOUND) ? - "No submodule named '%s'" : - "Submodule '%s' has not been added yet", name); + "no submodule named '%s'" : + "submodule '%s' has not been added yet", name); } typedef struct { @@ -149,40 +150,52 @@ static int find_by_path(const git_config_entry *entry, void *payload) } /** - * Find out the name of a submodule from its path + * Release the name map returned by 'load_submodule_names'. + */ +static void free_submodule_names(git_strmap *names) +{ + git_buf *name = 0; + if (names == NULL) + return; + git_strmap_foreach_value(names, name, { + git__free(name); + }); + git_strmap_free(names); + return; +} + +/** + * Map submodule paths to names. + * TODO: for some use-cases, this might need case-folding on a + * case-insensitive filesystem */ -static int name_from_path(git_buf *out, git_config *cfg, const char *path) +static int load_submodule_names(git_strmap *out, git_config *cfg) { const char *key = "submodule\\..*\\.path"; git_config_iterator *iter; git_config_entry *entry; - int error; + git_buf buf = GIT_BUF_INIT; + int rval; + int error = 0; if ((error = git_config_iterator_glob_new(&iter, cfg, key)) < 0) return error; - while ((error = git_config_next(&entry, iter)) == 0) { + while (git_config_next(&entry, iter) == 0) { const char *fdot, *ldot; - /* TODO: this should maybe be strcasecmp on a case-insensitive fs */ - if (strcmp(path, entry->value) != 0) - continue; - fdot = strchr(entry->name, '.'); ldot = strrchr(entry->name, '.'); - git_buf_clear(out); - git_buf_put(out, fdot + 1, ldot - fdot - 1); - goto cleanup; - } - - if (error == GIT_ITEROVER) { - giterr_set(GITERR_SUBMODULE, "could not find a submodule name for '%s'", path); - error = GIT_ENOTFOUND; + git_buf_put(&buf, fdot + 1, ldot - fdot - 1); + git_strmap_insert(out, entry->value, git_buf_detach(&buf), &rval); + if (rval < 0) { + giterr_set(GITERR_NOMEMORY, "error inserting submodule into hash table"); + return -1; + } } -cleanup: git_config_iterator_free(iter); - return error; + return 0; } int git_submodule_lookup( @@ -196,6 +209,22 @@ int git_submodule_lookup( assert(repo && name); + if (repo->is_bare) { + giterr_set(GITERR_SUBMODULE, "cannot get submodules without a working tree"); + return -1; + } + + if (repo->submodule_cache != NULL) { + khiter_t pos = git_strmap_lookup_index(repo->submodule_cache, name); + if (git_strmap_valid_index(repo->submodule_cache, pos)) { + if (out) { + *out = git_strmap_value_at(repo->submodule_cache, pos); + GIT_REFCOUNT_INC(*out); + } + return 0; + } + } + if ((error = submodule_alloc(&sm, repo, name)) < 0) return error; @@ -306,7 +335,7 @@ static int submodule_get_or_create(git_submodule **out, git_repository *repo, gi if ((error = submodule_alloc(&sm, repo, name)) < 0) return error; - pos = kh_put(str, map, sm->name, &error); + pos = git_strmap_put(map, sm->name, &error); /* nobody can beat us to adding it */ assert(error != 0); if (error < 0) { @@ -324,89 +353,108 @@ done: static int submodules_from_index(git_strmap *map, git_index *idx, git_config *cfg) { - int error; - git_iterator *i; - const git_index_entry *entry; - git_buf name = GIT_BUF_INIT; - - if ((error = git_iterator_for_index(&i, git_index_owner(idx), idx, NULL)) < 0) - return error; + int error; + git_iterator *i = NULL; + const git_index_entry *entry; + git_strmap *names = 0; - while (!(error = git_iterator_advance(&entry, i))) { - khiter_t pos = git_strmap_lookup_index(map, entry->path); - git_submodule *sm; + git_strmap_alloc(&names); + if ((error = load_submodule_names(names, cfg))) + goto done; - git_buf_clear(&name); - if (!name_from_path(&name, cfg, entry->path)) { - git_strmap_lookup_index(map, name.ptr); - } + if ((error = git_iterator_for_index(&i, git_index_owner(idx), idx, NULL)) < 0) + goto done; - if (git_strmap_valid_index(map, pos)) { - sm = git_strmap_value_at(map, pos); + while (!(error = git_iterator_advance(&entry, i))) { + khiter_t pos = git_strmap_lookup_index(map, entry->path); + git_submodule *sm; + + if (git_strmap_valid_index(map, pos)) { + sm = git_strmap_value_at(map, pos); + + if (S_ISGITLINK(entry->mode)) + submodule_update_from_index_entry(sm, entry); + else + sm->flags |= GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE; + } else if (S_ISGITLINK(entry->mode)) { + khiter_t name_pos; + const char *name; + + name_pos = git_strmap_lookup_index(names, entry->path); + if (git_strmap_valid_index(names, name_pos)) { + name = git_strmap_value_at(names, name_pos); + } else { + name = entry->path; + } - if (S_ISGITLINK(entry->mode)) - submodule_update_from_index_entry(sm, entry); - else - sm->flags |= GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE; - } else if (S_ISGITLINK(entry->mode)) { - if (!submodule_get_or_create(&sm, git_index_owner(idx), map, name.ptr ? name.ptr : entry->path)) { - submodule_update_from_index_entry(sm, entry); - git_submodule_free(sm); - } - } - } + if (!submodule_get_or_create(&sm, git_index_owner(idx), map, name)) { + submodule_update_from_index_entry(sm, entry); + git_submodule_free(sm); + } + } + } - if (error == GIT_ITEROVER) - error = 0; + if (error == GIT_ITEROVER) + error = 0; - git_buf_free(&name); - git_iterator_free(i); +done: + git_iterator_free(i); + free_submodule_names(names); - return error; + return error; } static int submodules_from_head(git_strmap *map, git_tree *head, git_config *cfg) { - int error; - git_iterator *i; - const git_index_entry *entry; - git_buf name = GIT_BUF_INIT; - - if ((error = git_iterator_for_tree(&i, head, NULL)) < 0) - return error; - - while (!(error = git_iterator_advance(&entry, i))) { - khiter_t pos = git_strmap_lookup_index(map, entry->path); - git_submodule *sm; + int error; + git_iterator *i = NULL; + const git_index_entry *entry; + git_strmap *names = 0; + git_strmap_alloc(&names); + if ((error = load_submodule_names(names, cfg))) + goto done; - git_buf_clear(&name); - if (!name_from_path(&name, cfg, entry->path)) { - git_strmap_lookup_index(map, name.ptr); - } + if ((error = git_iterator_for_tree(&i, head, NULL)) < 0) + goto done; - if (git_strmap_valid_index(map, pos)) { - sm = git_strmap_value_at(map, pos); + while (!(error = git_iterator_advance(&entry, i))) { + khiter_t pos = git_strmap_lookup_index(map, entry->path); + git_submodule *sm; + + if (git_strmap_valid_index(map, pos)) { + sm = git_strmap_value_at(map, pos); + + if (S_ISGITLINK(entry->mode)) + submodule_update_from_head_data(sm, entry->mode, &entry->id); + else + sm->flags |= GIT_SUBMODULE_STATUS__HEAD_NOT_SUBMODULE; + } else if (S_ISGITLINK(entry->mode)) { + khiter_t name_pos; + const char *name; + + name_pos = git_strmap_lookup_index(names, entry->path); + if (git_strmap_valid_index(names, name_pos)) { + name = git_strmap_value_at(names, name_pos); + } else { + name = entry->path; + } - if (S_ISGITLINK(entry->mode)) - submodule_update_from_head_data(sm, entry->mode, &entry->id); - else - sm->flags |= GIT_SUBMODULE_STATUS__HEAD_NOT_SUBMODULE; - } else if (S_ISGITLINK(entry->mode)) { - if (!submodule_get_or_create(&sm, git_tree_owner(head), map, name.ptr ? name.ptr : entry->path)) { - submodule_update_from_head_data( - sm, entry->mode, &entry->id); - git_submodule_free(sm); - } - } - } + if (!submodule_get_or_create(&sm, git_tree_owner(head), map, name)) { + submodule_update_from_head_data( + sm, entry->mode, &entry->id); + git_submodule_free(sm); + } + } + } - if (error == GIT_ITEROVER) - error = 0; + if (error == GIT_ITEROVER) + error = 0; - git_buf_free(&name); - git_iterator_free(i); +done: + git_iterator_free(i); + free_submodule_names(names); - return error; + return error; } /* If have_sm is true, sm is populated, otherwise map an repo are. */ @@ -416,7 +464,7 @@ typedef struct { git_repository *repo; } lfc_data; -static int all_submodules(git_repository *repo, git_strmap *map) +int git_submodule__map(git_repository *repo, git_strmap *map) { int error = 0; git_index *idx = NULL; @@ -470,12 +518,12 @@ static int all_submodules(git_repository *repo, git_strmap *map) goto cleanup; } /* add back submodule information from index */ - if (idx) { + if (mods && idx) { if ((error = submodules_from_index(map, idx, mods)) < 0) goto cleanup; } /* add submodule information from HEAD */ - if (head) { + if (mods && head) { if ((error = submodules_from_head(map, head, mods)) < 0) goto cleanup; } @@ -506,14 +554,19 @@ int git_submodule_foreach( int error; size_t i; + if (repo->is_bare) { + giterr_set(GITERR_SUBMODULE, "cannot get submodules without a working tree"); + return -1; + } + if ((error = git_strmap_alloc(&submodules)) < 0) return error; - if ((error = all_submodules(repo, submodules)) < 0) + if ((error = git_submodule__map(repo, submodules)) < 0) goto done; if (!(error = git_vector_init( - &snapshot, kh_size(submodules), submodule_cmp))) { + &snapshot, git_strmap_num_entries(submodules), submodule_cmp))) { git_strmap_foreach_value(submodules, sm, { if ((error = git_vector_insert(&snapshot, sm)) < 0) @@ -574,8 +627,10 @@ static int submodule_repo_init( * Old style: sub-repo goes directly into repo/<name>/.git/ */ if (use_gitlink) { - error = git_buf_join3( - &repodir, '/', git_repository_path(parent_repo), "modules", path); + error = git_repository_item_path(&repodir, parent_repo, GIT_REPOSITORY_ITEM_MODULES); + if (error < 0) + goto cleanup; + error = git_buf_joinpath(&repodir, repodir.ptr, path); if (error < 0) goto cleanup; @@ -618,7 +673,7 @@ int git_submodule_add_setup( giterr_clear(); else { giterr_set(GITERR_SUBMODULE, - "Attempt to add submodule '%s' that already exists", path); + "attempt to add submodule '%s' that already exists", path); return GIT_EEXISTS; } @@ -628,7 +683,7 @@ int git_submodule_add_setup( path += strlen(git_repository_workdir(repo)); if (git_path_root(path) >= 0) { - giterr_set(GITERR_SUBMODULE, "Submodule path must be a relative path"); + giterr_set(GITERR_SUBMODULE, "submodule path must be a relative path"); error = -1; goto cleanup; } @@ -637,7 +692,7 @@ int git_submodule_add_setup( if (!(mods = open_gitmodules(repo, GITMODULES_CREATE))) { giterr_set(GITERR_SUBMODULE, - "Adding submodules to a bare repository is not supported"); + "adding submodules to a bare repository is not supported"); return -1; } @@ -758,7 +813,7 @@ int git_submodule_add_to_index(git_submodule *sm, int write_index) /* read stat information for submodule working directory */ if (p_stat(path.ptr, &st) < 0) { giterr_set(GITERR_SUBMODULE, - "Cannot add submodule without working directory"); + "cannot add submodule without working directory"); error = -1; goto cleanup; } @@ -771,7 +826,7 @@ int git_submodule_add_to_index(git_submodule *sm, int write_index) /* calling git_submodule_open will have set sm->wd_oid if possible */ if ((sm->flags & GIT_SUBMODULE_STATUS__WD_OID_VALID) == 0) { giterr_set(GITERR_SUBMODULE, - "Cannot add submodule without HEAD to index"); + "cannot add submodule without HEAD to index"); error = -1; goto cleanup; } @@ -861,7 +916,7 @@ int git_submodule_resolve_url(git_buf *out, git_repository *repo, const char *ur } else if (strchr(url, ':') != NULL || url[0] == '/') { error = git_buf_sets(out, url); } else { - giterr_set(GITERR_SUBMODULE, "Invalid format for submodule URL"); + giterr_set(GITERR_SUBMODULE, "invalid format for submodule URL"); error = -1; } @@ -1042,8 +1097,10 @@ static int submodule_repo_create( * <repo-dir>/modules/<name>/ with a gitlink in the * sub-repo workdir directory to that repository. */ - error = git_buf_join3( - &repodir, '/', git_repository_path(parent_repo), "modules", path); + error = git_repository_item_path(&repodir, parent_repo, GIT_REPOSITORY_ITEM_MODULES); + if (error < 0) + goto cleanup; + error = git_buf_joinpath(&repodir, repodir.ptr, path); if (error < 0) goto cleanup; @@ -1133,7 +1190,7 @@ int git_submodule_update(git_submodule *sm, int init, git_submodule_update_optio goto done; if (!init) { - giterr_set(GITERR_SUBMODULE, "Submodule is not initialized."); + giterr_set(GITERR_SUBMODULE, "submodule is not initialized"); error = GIT_ERROR; goto done; } @@ -1160,13 +1217,14 @@ int git_submodule_update(git_submodule *sm, int init, git_submodule_update_optio * will checkout the specific commit manually. */ clone_options.checkout_opts.checkout_strategy = GIT_CHECKOUT_NONE; - update_options.checkout_opts.checkout_strategy = update_options.clone_checkout_strategy; if ((error = git_clone(&sub_repo, submodule_url, sm->path, &clone_options)) < 0 || (error = git_repository_set_head_detached(sub_repo, git_submodule_index_id(sm))) < 0 || (error = git_checkout_head(sub_repo, &update_options.checkout_opts)) != 0) goto done; } else { + const git_oid *oid; + /** * Work dir is initialized - look up the commit in the parent repository's index, * update the workdir contents of the subrepository, and set the subrepository's @@ -1175,8 +1233,14 @@ int git_submodule_update(git_submodule *sm, int init, git_submodule_update_optio if ((error = git_submodule_open(&sub_repo, sm)) < 0) goto done; + if ((oid = git_submodule_index_id(sm)) == NULL) { + giterr_set(GITERR_SUBMODULE, "could not get ID of submodule in index"); + error = -1; + goto done; + } + /* Look up the target commit in the submodule. */ - if ((error = git_object_lookup(&target_commit, sub_repo, git_submodule_index_id(sm), GIT_OBJ_COMMIT)) < 0) { + if ((error = git_object_lookup(&target_commit, sub_repo, oid, GIT_OBJ_COMMIT)) < 0) { /* If it isn't found then fetch and try again. */ if (error != GIT_ENOTFOUND || !update_options.allow_fetch || (error = lookup_default_remote(&remote, sub_repo)) < 0 || @@ -1215,7 +1279,7 @@ int git_submodule_init(git_submodule *sm, int overwrite) if (!sm->url) { giterr_set(GITERR_SUBMODULE, - "No URL configured for submodule '%s'", sm->name); + "no URL configured for submodule '%s'", sm->name); return -1; } @@ -1259,7 +1323,7 @@ int git_submodule_sync(git_submodule *sm) if (!sm->url) { giterr_set(GITERR_SUBMODULE, - "No URL configured for submodule '%s'", sm->name); + "no URL configured for submodule '%s'", sm->name); return -1; } @@ -1502,13 +1566,22 @@ int git_submodule__status( return 0; } - /* refresh the index OID */ - if (submodule_update_index(sm) < 0) - return -1; + /* If the user has requested caching submodule state, performing these + * expensive operations (especially `submodule_update_head`, which is + * bottlenecked on `git_repository_head_tree`) eliminates much of the + * advantage. We will, therefore, interpret the request for caching to + * apply here to and skip them. + */ - /* refresh the HEAD OID */ - if (submodule_update_head(sm) < 0) - return -1; + if (sm->repo->submodule_cache == NULL) { + /* refresh the index OID */ + if (submodule_update_index(sm) < 0) + return -1; + + /* refresh the HEAD OID */ + if (submodule_update_head(sm) < 0) + return -1; + } /* for ignore == dirty, don't scan the working directory */ if (ign == GIT_SUBMODULE_IGNORE_DIRTY) { @@ -1566,7 +1639,6 @@ int git_submodule_location(unsigned int *location, git_submodule *sm) location, NULL, NULL, NULL, sm, GIT_SUBMODULE_IGNORE_ALL); } - /* * INTERNAL FUNCTIONS */ @@ -1578,7 +1650,7 @@ static int submodule_alloc( git_submodule *sm; if (!name || !(namelen = strlen(name))) { - giterr_set(GITERR_SUBMODULE, "Invalid submodule name"); + giterr_set(GITERR_SUBMODULE, "invalid submodule name"); return -1; } @@ -1630,7 +1702,7 @@ void git_submodule_free(git_submodule *sm) static int submodule_config_error(const char *property, const char *value) { giterr_set(GITERR_INVALID, - "Invalid value for submodule '%s' property: '%s'", property, value); + "invalid value for submodule '%s' property: '%s'", property, value); return -1; } @@ -1813,7 +1885,7 @@ static int submodule_load_each(const git_config_entry *entry, void *payload) goto done; } - git_strmap_insert(map, sm->name, sm, error); + git_strmap_insert(map, sm->name, sm, &error); assert(error != 0); if (error < 0) goto done; @@ -1968,7 +2040,7 @@ static int lookup_default_remote(git_remote **remote, git_repository *repo) if (error == GIT_ENOTFOUND) giterr_set( GITERR_SUBMODULE, - "Cannot get default remote for submodule - no local tracking " + "cannot get default remote for submodule - no local tracking " "branch for HEAD and origin does not exist"); return error; @@ -1977,17 +2049,28 @@ static int lookup_default_remote(git_remote **remote, git_repository *repo) static int get_url_base(git_buf *url, git_repository *repo) { int error; + git_worktree *wt = NULL; git_remote *remote = NULL; - if (!(error = lookup_default_remote(&remote, repo))) { + if ((error = lookup_default_remote(&remote, repo)) == 0) { error = git_buf_sets(url, git_remote_url(remote)); - git_remote_free(remote); - } - else if (error == GIT_ENOTFOUND) { - /* if repository does not have a default remote, use workdir instead */ + goto out; + } else if (error != GIT_ENOTFOUND) + goto out; + else giterr_clear(); + + /* if repository does not have a default remote, use workdir instead */ + if (git_repository_is_worktree(repo)) { + if ((error = git_worktree_open_from_repository(&wt, repo)) < 0) + goto out; + error = git_buf_sets(url, wt->parent_path); + } else error = git_buf_sets(url, git_repository_workdir(repo)); - } + +out: + git_remote_free(remote); + git_worktree_free(wt); return error; } |