Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.
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| #include "cache.h" | |
| #include "config.h" | |
| #include "commit.h" | |
| #include "refs.h" | |
| #include "notes-utils.h" | |
| #include "repository.h" | |
| void create_notes_commit(struct repository *r, | |
| struct notes_tree *t, | |
| struct commit_list *parents, | |
| const char *msg, size_t msg_len, | |
| struct object_id *result_oid) | |
| { | |
| struct object_id tree_oid; | |
| assert(t->initialized); | |
| if (write_notes_tree(t, &tree_oid)) | |
| die("Failed to write notes tree to database"); | |
| if (!parents) { | |
| /* Deduce parent commit from t->ref */ | |
| struct object_id parent_oid; | |
| if (!read_ref(t->ref, &parent_oid)) { | |
| struct commit *parent = lookup_commit(r, &parent_oid); | |
| if (parse_commit(parent)) | |
| die("Failed to find/parse commit %s", t->ref); | |
| commit_list_insert(parent, &parents); | |
| } | |
| /* else: t->ref points to nothing, assume root/orphan commit */ | |
| } | |
| if (commit_tree(msg, msg_len, &tree_oid, parents, result_oid, NULL, | |
| NULL)) | |
| die("Failed to commit notes tree to database"); | |
| } | |
| void commit_notes(struct repository *r, struct notes_tree *t, const char *msg) | |
| { | |
| struct strbuf buf = STRBUF_INIT; | |
| struct object_id commit_oid; | |
| if (!t) | |
| t = &default_notes_tree; | |
| if (!t->initialized || !t->update_ref || !*t->update_ref) | |
| die(_("Cannot commit uninitialized/unreferenced notes tree")); | |
| if (!t->dirty) | |
| return; /* don't have to commit an unchanged tree */ | |
| /* Prepare commit message and reflog message */ | |
| strbuf_addstr(&buf, msg); | |
| strbuf_complete_line(&buf); | |
| create_notes_commit(r, t, NULL, buf.buf, buf.len, &commit_oid); | |
| strbuf_insertstr(&buf, 0, "notes: "); | |
| update_ref(buf.buf, t->update_ref, &commit_oid, NULL, 0, | |
| UPDATE_REFS_DIE_ON_ERR); | |
| strbuf_release(&buf); | |
| } | |
| int parse_notes_merge_strategy(const char *v, enum notes_merge_strategy *s) | |
| { | |
| if (!strcmp(v, "manual")) | |
| *s = NOTES_MERGE_RESOLVE_MANUAL; | |
| else if (!strcmp(v, "ours")) | |
| *s = NOTES_MERGE_RESOLVE_OURS; | |
| else if (!strcmp(v, "theirs")) | |
| *s = NOTES_MERGE_RESOLVE_THEIRS; | |
| else if (!strcmp(v, "union")) | |
| *s = NOTES_MERGE_RESOLVE_UNION; | |
| else if (!strcmp(v, "cat_sort_uniq")) | |
| *s = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ; | |
| else | |
| return -1; | |
| return 0; | |
| } | |
| static combine_notes_fn parse_combine_notes_fn(const char *v) | |
| { | |
| if (!strcasecmp(v, "overwrite")) | |
| return combine_notes_overwrite; | |
| else if (!strcasecmp(v, "ignore")) | |
| return combine_notes_ignore; | |
| else if (!strcasecmp(v, "concatenate")) | |
| return combine_notes_concatenate; | |
| else if (!strcasecmp(v, "cat_sort_uniq")) | |
| return combine_notes_cat_sort_uniq; | |
| else | |
| return NULL; | |
| } | |
| static int notes_rewrite_config(const char *k, const char *v, void *cb) | |
| { | |
| struct notes_rewrite_cfg *c = cb; | |
| if (starts_with(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) { | |
| c->enabled = git_config_bool(k, v); | |
| return 0; | |
| } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) { | |
| if (!v) | |
| return config_error_nonbool(k); | |
| c->combine = parse_combine_notes_fn(v); | |
| if (!c->combine) { | |
| error(_("Bad notes.rewriteMode value: '%s'"), v); | |
| return 1; | |
| } | |
| return 0; | |
| } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) { | |
| /* note that a refs/ prefix is implied in the | |
| * underlying for_each_glob_ref */ | |
| if (starts_with(v, "refs/notes/")) | |
| string_list_add_refs_by_glob(c->refs, v); | |
| else | |
| warning(_("Refusing to rewrite notes in %s" | |
| " (outside of refs/notes/)"), v); | |
| return 0; | |
| } | |
| return 0; | |
| } | |
| struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd) | |
| { | |
| struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg)); | |
| const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT); | |
| const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT); | |
| c->cmd = cmd; | |
| c->enabled = 1; | |
| c->combine = combine_notes_concatenate; | |
| CALLOC_ARRAY(c->refs, 1); | |
| c->refs->strdup_strings = 1; | |
| c->refs_from_env = 0; | |
| c->mode_from_env = 0; | |
| if (rewrite_mode_env) { | |
| c->mode_from_env = 1; | |
| c->combine = parse_combine_notes_fn(rewrite_mode_env); | |
| if (!c->combine) | |
| /* | |
| * TRANSLATORS: The first %s is the name of | |
| * the environment variable, the second %s is | |
| * its value. | |
| */ | |
| error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT, | |
| rewrite_mode_env); | |
| } | |
| if (rewrite_refs_env) { | |
| c->refs_from_env = 1; | |
| string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env); | |
| } | |
| git_config(notes_rewrite_config, c); | |
| if (!c->enabled || !c->refs->nr) { | |
| string_list_clear(c->refs, 0); | |
| free(c->refs); | |
| free(c); | |
| return NULL; | |
| } | |
| c->trees = load_notes_trees(c->refs, NOTES_INIT_WRITABLE); | |
| string_list_clear(c->refs, 0); | |
| free(c->refs); | |
| return c; | |
| } | |
| int copy_note_for_rewrite(struct notes_rewrite_cfg *c, | |
| const struct object_id *from_obj, const struct object_id *to_obj) | |
| { | |
| int ret = 0; | |
| int i; | |
| for (i = 0; c->trees[i]; i++) | |
| ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret; | |
| return ret; | |
| } | |
| void finish_copy_notes_for_rewrite(struct repository *r, | |
| struct notes_rewrite_cfg *c, | |
| const char *msg) | |
| { | |
| int i; | |
| for (i = 0; c->trees[i]; i++) { | |
| commit_notes(r, c->trees[i], msg); | |
| free_notes(c->trees[i]); | |
| } | |
| free(c->trees); | |
| free(c); | |
| } |