static void update_common_dir(struct strbuf *buf, int git_dir_len) { char *base = buf->buf + git_dir_len; const char **p; if (is_dir_file(base, "logs", "HEAD")) return; /* keep this in $GIT_DIR */ for (p = common_list; *p; p++) { const char *path = *p; int is_dir = 0; if (*path == '!') path++; if (*path == '/') { path++; is_dir = 1; } if (is_dir && dir_prefix(base, path)) { replace_dir(buf, git_dir_len, get_git_common_dir()); return; } if (!is_dir && !strcmp(base, path)) { replace_dir(buf, git_dir_len, get_git_common_dir()); return; } } }
/** * get the main worktree */ static struct worktree *get_main_worktree(void) { struct worktree *worktree = NULL; struct strbuf path = STRBUF_INIT; struct strbuf worktree_path = STRBUF_INIT; struct strbuf head_ref = STRBUF_INIT; int is_bare = 0; int is_detached = 0; strbuf_add_absolute_path(&worktree_path, get_git_common_dir()); is_bare = !strbuf_strip_suffix(&worktree_path, "/.git"); if (is_bare) strbuf_strip_suffix(&worktree_path, "/."); strbuf_addf(&path, "%s/HEAD", get_git_common_dir()); worktree = xcalloc(1, sizeof(*worktree)); worktree->path = strbuf_detach(&worktree_path, NULL); worktree->is_bare = is_bare; worktree->is_detached = is_detached; if (!parse_ref(path.buf, &head_ref, &is_detached)) add_head_info(&head_ref, worktree); strbuf_release(&path); strbuf_release(&worktree_path); strbuf_release(&head_ref); return worktree; }
static char *find_linked_symref(const char *symref, const char *branch, const char *id) { struct strbuf sb = STRBUF_INIT; struct strbuf path = STRBUF_INIT; struct strbuf gitdir = STRBUF_INIT; char *existing = NULL; /* * $GIT_COMMON_DIR/$symref (e.g. HEAD) is practically outside * $GIT_DIR so resolve_ref_unsafe() won't work (it uses * git_path). Parse the ref ourselves. */ if (id) strbuf_addf(&path, "%s/worktrees/%s/%s", get_git_common_dir(), id, symref); else strbuf_addf(&path, "%s/%s", get_git_common_dir(), symref); if (!strbuf_readlink(&sb, path.buf, 0)) { if (!starts_with(sb.buf, "refs/") || check_refname_format(sb.buf, 0)) goto done; } else if (strbuf_read_file(&sb, path.buf, 0) >= 0 && starts_with(sb.buf, "ref:")) { strbuf_remove(&sb, 0, strlen("ref:")); strbuf_trim(&sb); } else goto done; if (strcmp(sb.buf, branch)) goto done; if (id) { strbuf_reset(&path); strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id); if (strbuf_read_file(&gitdir, path.buf, 0) <= 0) goto done; strbuf_rtrim(&gitdir); } else strbuf_addstr(&gitdir, get_git_common_dir()); strbuf_strip_suffix(&gitdir, ".git"); existing = strbuf_detach(&gitdir, NULL); done: strbuf_release(&path); strbuf_release(&sb); strbuf_release(&gitdir); return existing; }
static struct worktree *get_linked_worktree(const char *id) { struct worktree *worktree = NULL; struct strbuf path = STRBUF_INIT; struct strbuf worktree_path = STRBUF_INIT; if (!id) die("Missing linked worktree name"); strbuf_git_common_path(&path, the_repository, "worktrees/%s/gitdir", id); if (strbuf_read_file(&worktree_path, path.buf, 0) <= 0) /* invalid gitdir file */ goto done; strbuf_rtrim(&worktree_path); if (!strbuf_strip_suffix(&worktree_path, "/.git")) { strbuf_reset(&worktree_path); strbuf_add_absolute_path(&worktree_path, "."); strbuf_strip_suffix(&worktree_path, "/."); } strbuf_reset(&path); strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id); worktree = xcalloc(1, sizeof(*worktree)); worktree->path = strbuf_detach(&worktree_path, NULL); worktree->id = xstrdup(id); add_head_info(worktree); done: strbuf_release(&path); strbuf_release(&worktree_path); return worktree; }
char *find_shared_symref(const char *symref, const char *target) { struct strbuf path = STRBUF_INIT; DIR *dir; struct dirent *d; char *existing; if ((existing = find_linked_symref(symref, target, NULL))) return existing; strbuf_addf(&path, "%s/worktrees", get_git_common_dir()); dir = opendir(path.buf); strbuf_release(&path); if (!dir) return NULL; while ((d = readdir(dir)) != NULL) { if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, "..")) continue; existing = find_linked_symref(symref, target, d->d_name); if (existing) goto done; } done: closedir(dir); return existing; }
static void copy_templates(const char *template_dir) { struct strbuf path = STRBUF_INIT; struct strbuf template_path = STRBUF_INIT; size_t template_len; struct repository_format template_format = REPOSITORY_FORMAT_INIT; struct strbuf err = STRBUF_INIT; DIR *dir; char *to_free = NULL; if (!template_dir) template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT); if (!template_dir) template_dir = init_db_template_dir; if (!template_dir) template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR); if (!template_dir[0]) { free(to_free); return; } strbuf_addstr(&template_path, template_dir); strbuf_complete(&template_path, '/'); template_len = template_path.len; dir = opendir(template_path.buf); if (!dir) { warning(_("templates not found in %s"), template_dir); goto free_return; } /* Make sure that template is from the correct vintage */ strbuf_addstr(&template_path, "config"); read_repository_format(&template_format, template_path.buf); strbuf_setlen(&template_path, template_len); /* * No mention of version at all is OK, but anything else should be * verified. */ if (template_format.version >= 0 && verify_repository_format(&template_format, &err) < 0) { warning(_("not copying templates from '%s': %s"), template_dir, err.buf); strbuf_release(&err); goto close_free_return; } strbuf_addstr(&path, get_git_common_dir()); strbuf_complete(&path, '/'); copy_templates_1(&path, &template_path, dir); close_free_return: closedir(dir); free_return: free(to_free); strbuf_release(&path); strbuf_release(&template_path); clear_repository_format(&template_format); }
const char *get_worktree_git_dir(const struct worktree *wt) { if (!wt) return get_git_dir(); else if (!wt->id) return get_git_common_dir(); else return git_common_path("worktrees/%s", wt->id); }
static void do_git_common_path(struct strbuf *buf, const char *fmt, va_list args) { strbuf_addstr(buf, get_git_common_dir()); if (buf->len && !is_dir_sep(buf->buf[buf->len - 1])) strbuf_addch(buf, '/'); strbuf_vaddf(buf, fmt, args); strbuf_cleanup_path(buf); }
static void update_common_dir(struct strbuf *buf, int git_dir_len, const char *common_dir) { char *base = buf->buf + git_dir_len; init_common_trie(); if (!common_dir) common_dir = get_git_common_dir(); if (trie_find(&common_trie, base, check_common, NULL) > 0) replace_dir(buf, git_dir_len, common_dir); }
/** * get the main worktree */ static struct worktree *get_main_worktree(void) { struct worktree *worktree = NULL; struct strbuf path = STRBUF_INIT; struct strbuf worktree_path = STRBUF_INIT; struct strbuf head_ref = STRBUF_INIT; int is_bare = 0; int is_detached = 0; strbuf_add_absolute_path(&worktree_path, get_git_common_dir()); is_bare = !strbuf_strip_suffix(&worktree_path, "/.git"); if (is_bare) strbuf_strip_suffix(&worktree_path, "/."); strbuf_addf(&path, "%s/HEAD", get_git_common_dir()); if (parse_ref(path.buf, &head_ref, &is_detached) < 0) goto done; worktree = xmalloc(sizeof(struct worktree)); worktree->path = strbuf_detach(&worktree_path, NULL); worktree->id = NULL; worktree->is_bare = is_bare; worktree->head_ref = NULL; worktree->is_detached = is_detached; worktree->is_current = 0; add_head_info(&head_ref, worktree); worktree->lock_reason = NULL; worktree->lock_reason_valid = 0; done: strbuf_release(&path); strbuf_release(&worktree_path); strbuf_release(&head_ref); return worktree; }
static struct worktree *get_linked_worktree(const char *id) { struct worktree *worktree = NULL; struct strbuf path = STRBUF_INIT; struct strbuf worktree_path = STRBUF_INIT; struct strbuf head_ref = STRBUF_INIT; int is_detached = 0; if (!id) die("Missing linked worktree name"); strbuf_git_common_path(&path, "worktrees/%s/gitdir", id); if (strbuf_read_file(&worktree_path, path.buf, 0) <= 0) /* invalid gitdir file */ goto done; strbuf_rtrim(&worktree_path); if (!strbuf_strip_suffix(&worktree_path, "/.git")) { strbuf_reset(&worktree_path); strbuf_add_absolute_path(&worktree_path, "."); strbuf_strip_suffix(&worktree_path, "/."); } strbuf_reset(&path); strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id); if (parse_ref(path.buf, &head_ref, &is_detached) < 0) goto done; worktree = xmalloc(sizeof(struct worktree)); worktree->path = strbuf_detach(&worktree_path, NULL); worktree->id = xstrdup(id); worktree->is_bare = 0; worktree->head_ref = NULL; worktree->is_detached = is_detached; worktree->is_current = 0; add_head_info(&head_ref, worktree); worktree->lock_reason = NULL; worktree->lock_reason_valid = 0; done: strbuf_release(&path); strbuf_release(&worktree_path); strbuf_release(&head_ref); return worktree; }
int cmd_rev_parse(int argc, const char **argv, const char *prefix) { int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; int did_repo_setup = 0; int has_dashdash = 0; int output_prefix = 0; unsigned char sha1[20]; unsigned int flags = 0; const char *name = NULL; struct object_context unused; if (argc > 1 && !strcmp("--parseopt", argv[1])) return cmd_parseopt(argc - 1, argv + 1, prefix); if (argc > 1 && !strcmp("--sq-quote", argv[1])) return cmd_sq_quote(argc - 2, argv + 2); if (argc > 1 && !strcmp("-h", argv[1])) usage(builtin_rev_parse_usage); for (i = 1; i < argc; i++) { if (!strcmp(argv[i], "--")) { has_dashdash = 1; break; } } /* No options; just report on whether we're in a git repo or not. */ if (argc == 1) { setup_git_directory(); git_config(git_default_config, NULL); return 0; } for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "--local-env-vars")) { int i; for (i = 0; local_repo_env[i]; i++) printf("%s\n", local_repo_env[i]); continue; } if (!strcmp(arg, "--resolve-git-dir")) { const char *gitdir = argv[++i]; if (!gitdir) die("--resolve-git-dir requires an argument"); gitdir = resolve_gitdir(gitdir); if (!gitdir) die("not a gitdir '%s'", argv[i]); puts(gitdir); continue; } /* The rest of the options require a git repository. */ if (!did_repo_setup) { prefix = setup_git_directory(); git_config(git_default_config, NULL); did_repo_setup = 1; } if (!strcmp(arg, "--git-path")) { if (!argv[i + 1]) die("--git-path requires an argument"); puts(git_path("%s", argv[i + 1])); i++; continue; } if (as_is) { if (show_file(arg, output_prefix) && as_is < 2) verify_filename(prefix, arg, 0); continue; } if (!strcmp(arg,"-n")) { if (++i >= argc) die("-n requires an argument"); if ((filter & DO_FLAGS) && (filter & DO_REVS)) { show(arg); show(argv[i]); } continue; } if (starts_with(arg, "-n")) { if ((filter & DO_FLAGS) && (filter & DO_REVS)) show(arg); continue; } if (*arg == '-') { if (!strcmp(arg, "--")) { as_is = 2; /* Pass on the "--" if we show anything but files.. */ if (filter & (DO_FLAGS | DO_REVS)) show_file(arg, 0); continue; } if (!strcmp(arg, "--default")) { def = argv[++i]; if (!def) die("--default requires an argument"); continue; } if (!strcmp(arg, "--prefix")) { prefix = argv[++i]; if (!prefix) die("--prefix requires an argument"); startup_info->prefix = prefix; output_prefix = 1; continue; } if (!strcmp(arg, "--revs-only")) { filter &= ~DO_NOREV; continue; } if (!strcmp(arg, "--no-revs")) { filter &= ~DO_REVS; continue; } if (!strcmp(arg, "--flags")) { filter &= ~DO_NONFLAGS; continue; } if (!strcmp(arg, "--no-flags")) { filter &= ~DO_FLAGS; continue; } if (!strcmp(arg, "--verify")) { filter &= ~(DO_FLAGS|DO_NOREV); verify = 1; continue; } if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { quiet = 1; flags |= GET_SHA1_QUIETLY; continue; } if (opt_with_value(arg, "--short", &arg)) { filter &= ~(DO_FLAGS|DO_NOREV); verify = 1; abbrev = DEFAULT_ABBREV; if (!arg) continue; abbrev = strtoul(arg, NULL, 10); if (abbrev < MINIMUM_ABBREV) abbrev = MINIMUM_ABBREV; else if (40 <= abbrev) abbrev = 40; continue; } if (!strcmp(arg, "--sq")) { output_sq = 1; continue; } if (!strcmp(arg, "--not")) { show_type ^= REVERSED; continue; } if (!strcmp(arg, "--symbolic")) { symbolic = SHOW_SYMBOLIC_ASIS; continue; } if (!strcmp(arg, "--symbolic-full-name")) { symbolic = SHOW_SYMBOLIC_FULL; continue; } if (opt_with_value(arg, "--abbrev-ref", &arg)) { abbrev_ref = 1; abbrev_ref_strict = warn_ambiguous_refs; if (arg) { if (!strcmp(arg, "strict")) abbrev_ref_strict = 1; else if (!strcmp(arg, "loose")) abbrev_ref_strict = 0; else die("unknown mode for --abbrev-ref: %s", arg); } continue; } if (!strcmp(arg, "--all")) { for_each_ref(show_reference, NULL); continue; } if (skip_prefix(arg, "--disambiguate=", &arg)) { for_each_abbrev(arg, show_abbrev, NULL); continue; } if (!strcmp(arg, "--bisect")) { for_each_ref_in("refs/bisect/bad", show_reference, NULL); for_each_ref_in("refs/bisect/good", anti_reference, NULL); continue; } if (opt_with_value(arg, "--branches", &arg)) { handle_ref_opt(arg, "refs/heads/"); continue; } if (opt_with_value(arg, "--tags", &arg)) { handle_ref_opt(arg, "refs/tags/"); continue; } if (skip_prefix(arg, "--glob=", &arg)) { handle_ref_opt(arg, NULL); continue; } if (opt_with_value(arg, "--remotes", &arg)) { handle_ref_opt(arg, "refs/remotes/"); continue; } if (skip_prefix(arg, "--exclude=", &arg)) { add_ref_exclusion(&ref_excludes, arg); continue; } if (!strcmp(arg, "--show-toplevel")) { const char *work_tree = get_git_work_tree(); if (work_tree) puts(work_tree); continue; } if (!strcmp(arg, "--show-prefix")) { if (prefix) puts(prefix); else putchar('\n'); continue; } if (!strcmp(arg, "--show-cdup")) { const char *pfx = prefix; if (!is_inside_work_tree()) { const char *work_tree = get_git_work_tree(); if (work_tree) printf("%s\n", work_tree); continue; } while (pfx) { pfx = strchr(pfx, '/'); if (pfx) { pfx++; printf("../"); } } putchar('\n'); continue; } if (!strcmp(arg, "--git-dir")) { const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); char *cwd; int len; if (gitdir) { puts(gitdir); continue; } if (!prefix) { puts(".git"); continue; } cwd = xgetcwd(); len = strlen(cwd); printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); free(cwd); continue; } if (!strcmp(arg, "--git-common-dir")) { const char *pfx = prefix ? prefix : ""; puts(prefix_filename(pfx, strlen(pfx), get_git_common_dir())); continue; } if (!strcmp(arg, "--is-inside-git-dir")) { printf("%s\n", is_inside_git_dir() ? "true" : "false"); continue; } if (!strcmp(arg, "--is-inside-work-tree")) { printf("%s\n", is_inside_work_tree() ? "true" : "false"); continue; } if (!strcmp(arg, "--is-bare-repository")) { printf("%s\n", is_bare_repository() ? "true" : "false"); continue; } if (!strcmp(arg, "--shared-index-path")) { if (read_cache() < 0) die(_("Could not read the index")); if (the_index.split_index) { const unsigned char *sha1 = the_index.split_index->base_sha1; puts(git_path("sharedindex.%s", sha1_to_hex(sha1))); } continue; } if (skip_prefix(arg, "--since=", &arg)) { show_datestring("--max-age=", arg); continue; } if (skip_prefix(arg, "--after=", &arg)) { show_datestring("--max-age=", arg); continue; } if (skip_prefix(arg, "--before=", &arg)) { show_datestring("--min-age=", arg); continue; } if (skip_prefix(arg, "--until=", &arg)) { show_datestring("--min-age=", arg); continue; } if (show_flag(arg) && verify) die_no_single_rev(quiet); continue; } /* Not a flag argument */ if (try_difference(arg)) continue; if (try_parent_shorthands(arg)) continue; name = arg; type = NORMAL; if (*arg == '^') { name++; type = REVERSED; } if (!get_sha1_with_context(name, flags, sha1, &unused)) { if (verify) revs_count++; else show_rev(type, sha1, name); continue; } if (verify) die_no_single_rev(quiet); if (has_dashdash) die("bad revision '%s'", arg); as_is = 1; if (!show_file(arg, output_prefix)) continue; verify_filename(prefix, arg, 1); } if (verify) { if (revs_count == 1) { show_rev(type, sha1, name); return 0; } else if (revs_count == 0 && show_default()) return 0; die_no_single_rev(quiet); } else show_default(); return 0; }
static int add_worktree(const char *path, const char *refname, const struct add_opts *opts) { struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT; struct strbuf sb = STRBUF_INIT; const char *name; struct stat st; struct child_process cp = CHILD_PROCESS_INIT; struct argv_array child_env = ARGV_ARRAY_INIT; int counter = 0, len, ret; struct strbuf symref = STRBUF_INIT; struct commit *commit = NULL; int is_branch = 0; if (file_exists(path) && !is_empty_dir(path)) die(_("'%s' already exists"), path); /* is 'refname' a branch or commit? */ if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) && ref_exists(symref.buf)) { is_branch = 1; if (!opts->force) die_if_checked_out(symref.buf, 0); } commit = lookup_commit_reference_by_name(refname); if (!commit) die(_("invalid reference: %s"), refname); name = worktree_basename(path, &len); git_path_buf(&sb_repo, "worktrees/%.*s", (int)(path + len - name), name); len = sb_repo.len; if (safe_create_leading_directories_const(sb_repo.buf)) die_errno(_("could not create leading directories of '%s'"), sb_repo.buf); while (!stat(sb_repo.buf, &st)) { counter++; strbuf_setlen(&sb_repo, len); strbuf_addf(&sb_repo, "%d", counter); } name = strrchr(sb_repo.buf, '/') + 1; junk_pid = getpid(); atexit(remove_junk); sigchain_push_common(remove_junk_on_signal); if (mkdir(sb_repo.buf, 0777)) die_errno(_("could not create directory of '%s'"), sb_repo.buf); junk_git_dir = xstrdup(sb_repo.buf); is_junk = 1; /* * lock the incomplete repo so prune won't delete it, unlock * after the preparation is over. */ strbuf_addf(&sb, "%s/locked", sb_repo.buf); if (!opts->keep_locked) write_file(sb.buf, "initializing"); else write_file(sb.buf, "added with --lock"); strbuf_addf(&sb_git, "%s/.git", path); if (safe_create_leading_directories_const(sb_git.buf)) die_errno(_("could not create leading directories of '%s'"), sb_git.buf); junk_work_tree = xstrdup(path); strbuf_reset(&sb); strbuf_addf(&sb, "%s/gitdir", sb_repo.buf); write_file(sb.buf, "%s", real_path(sb_git.buf)); write_file(sb_git.buf, "gitdir: %s/worktrees/%s", real_path(get_git_common_dir()), name); /* * This is to keep resolve_ref() happy. We need a valid HEAD * or is_git_directory() will reject the directory. Any value which * looks like an object ID will do since it will be immediately * replaced by the symbolic-ref or update-ref invocation in the new * worktree. */ strbuf_reset(&sb); strbuf_addf(&sb, "%s/HEAD", sb_repo.buf); write_file(sb.buf, "%s", sha1_to_hex(null_sha1)); strbuf_reset(&sb); strbuf_addf(&sb, "%s/commondir", sb_repo.buf); write_file(sb.buf, "../.."); fprintf_ln(stderr, _("Preparing %s (identifier %s)"), path, name); argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf); argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path); cp.git_cmd = 1; if (!is_branch) argv_array_pushl(&cp.args, "update-ref", "HEAD", oid_to_hex(&commit->object.oid), NULL); else argv_array_pushl(&cp.args, "symbolic-ref", "HEAD", symref.buf, NULL); cp.env = child_env.argv; ret = run_command(&cp); if (ret) goto done; if (opts->checkout) { cp.argv = NULL; argv_array_clear(&cp.args); argv_array_pushl(&cp.args, "reset", "--hard", NULL); cp.env = child_env.argv; ret = run_command(&cp); if (ret) goto done; } is_junk = 0; FREE_AND_NULL(junk_work_tree); FREE_AND_NULL(junk_git_dir); done: if (ret || !opts->keep_locked) { strbuf_reset(&sb); strbuf_addf(&sb, "%s/locked", sb_repo.buf); unlink_or_warn(sb.buf); } /* * Hook failure does not warrant worktree deletion, so run hook after * is_junk is cleared, but do return appropriate code when hook fails. */ if (!ret && opts->checkout) { const char *hook = find_hook("post-checkout"); if (hook) { const char *env[] = { "GIT_DIR", "GIT_WORK_TREE", NULL }; cp.git_cmd = 0; cp.no_stdin = 1; cp.stdout_to_stderr = 1; cp.dir = path; cp.env = env; cp.argv = NULL; argv_array_pushl(&cp.args, absolute_path(hook), oid_to_hex(&null_oid), oid_to_hex(&commit->object.oid), "1", NULL); ret = run_command(&cp); } } argv_array_clear(&child_env); strbuf_release(&sb); strbuf_release(&symref); strbuf_release(&sb_repo); strbuf_release(&sb_git); return ret; }