diff options
| -rw-r--r-- | Documentation/technical/api-config.txt | 7 | ||||
| -rw-r--r-- | builtin/init-db.c | 45 | ||||
| -rw-r--r-- | cache.h | 40 | ||||
| -rw-r--r-- | config.c | 12 | ||||
| -rw-r--r-- | environment.c | 23 | ||||
| -rw-r--r-- | path.c | 10 | ||||
| -rw-r--r-- | setup.c | 144 |
7 files changed, 167 insertions, 114 deletions
diff --git a/Documentation/technical/api-config.txt b/Documentation/technical/api-config.txt index 0d8b99b368..20741f345e 100644 --- a/Documentation/technical/api-config.txt +++ b/Documentation/technical/api-config.txt @@ -63,13 +63,6 @@ parse for configuration, rather than looking in the usual files. Regular Specify whether include directives should be followed in parsed files. Regular `git_config` defaults to `1`. -There is a special version of `git_config` called `git_config_early`. -This version takes an additional parameter to specify the repository -config, instead of having it looked up via `git_path`. This is useful -early in a Git program before the repository has been found. Unless -you're working with early setup code, you probably don't want to use -this. - Reading Specific Files ---------------------- diff --git a/builtin/init-db.c b/builtin/init-db.c index da531f6b76..b2d8d40a67 100644 --- a/builtin/init-db.c +++ b/builtin/init-db.c @@ -95,6 +95,8 @@ 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; + struct strbuf err = STRBUF_INIT; DIR *dir; char *to_free = NULL; @@ -121,17 +123,18 @@ static void copy_templates(const char *template_dir) /* Make sure that template is from the correct vintage */ strbuf_addstr(&template_path, "config"); - repository_format_version = 0; - git_config_from_file(check_repository_format_version, - template_path.buf, NULL); + read_repository_format(&template_format, template_path.buf); strbuf_setlen(&template_path, template_len); - if (repository_format_version && - repository_format_version != GIT_REPO_VERSION) { - warning(_("not copying templates of " - "a wrong format version %d from '%s'"), - repository_format_version, - template_dir); + /* + * 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; } @@ -199,13 +202,13 @@ static int create_default_files(const char *template_path) /* reading existing config may have overwrote it */ if (init_shared_repository != -1) - shared_repository = init_shared_repository; + set_shared_repository(init_shared_repository); /* * We would have created the above under user's umask -- under * shared-repository settings, we would need to fix them up. */ - if (shared_repository) { + if (get_shared_repository()) { adjust_shared_perm(get_git_dir()); adjust_shared_perm(git_path_buf(&buf, "refs")); adjust_shared_perm(git_path_buf(&buf, "refs/heads")); @@ -370,7 +373,7 @@ int init_db(const char *template_dir, unsigned int flags) create_object_directory(); - if (shared_repository) { + if (get_shared_repository()) { char buf[10]; /* We do not spell "group" and such, so that * the configuration can be read by older version @@ -378,12 +381,12 @@ int init_db(const char *template_dir, unsigned int flags) * and compatibility values for PERM_GROUP and * PERM_EVERYBODY. */ - if (shared_repository < 0) + if (get_shared_repository() < 0) /* force to the mode value */ - xsnprintf(buf, sizeof(buf), "0%o", -shared_repository); - else if (shared_repository == PERM_GROUP) + xsnprintf(buf, sizeof(buf), "0%o", -get_shared_repository()); + else if (get_shared_repository() == PERM_GROUP) xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_GROUP); - else if (shared_repository == PERM_EVERYBODY) + else if (get_shared_repository() == PERM_EVERYBODY) xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY); else die("BUG: invalid value for shared_repository"); @@ -399,7 +402,7 @@ int init_db(const char *template_dir, unsigned int flags) "", and the last '%s%s' is the verbatim directory name. */ printf(_("%s%s Git repository in %s%s\n"), reinit ? _("Reinitialized existing") : _("Initialized empty"), - shared_repository ? _(" shared") : "", + get_shared_repository() ? _(" shared") : "", git_dir, len && git_dir[len-1] != '/' ? "/" : ""); } @@ -494,8 +497,8 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) * and we know shared_repository should always be 0; * but just in case we play safe. */ - saved = shared_repository; - shared_repository = 0; + saved = get_shared_repository(); + set_shared_repository(0); switch (safe_create_leading_directories_const(argv[0])) { case SCLD_OK: case SCLD_PERMS: @@ -507,7 +510,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) die_errno(_("cannot mkdir %s"), argv[0]); break; } - shared_repository = saved; + set_shared_repository(saved); if (mkdir(argv[0], 0777) < 0) die_errno(_("cannot mkdir %s"), argv[0]); mkdir_tried = 1; @@ -525,7 +528,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) } if (init_shared_repository != -1) - shared_repository = init_shared_repository; + set_shared_repository(init_shared_repository); /* * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR @@ -651,7 +651,6 @@ extern int prefer_symlink_refs; extern int log_all_ref_updates; extern int warn_ambiguous_refs; extern int warn_on_object_refname_ambiguity; -extern int shared_repository; extern const char *apply_default_whitespace; extern const char *apply_default_ignorewhitespace; extern const char *git_attributes_file; @@ -664,6 +663,9 @@ extern size_t delta_base_cache_limit; extern unsigned long big_file_threshold; extern unsigned long pack_size_limit_cfg; +void set_shared_repository(int value); +int get_shared_repository(void); + /* * Do replace refs need to be checked this run? This variable is * initialized to true unless --no-replace-object is used or @@ -745,9 +747,39 @@ extern int grafts_replace_parents; */ #define GIT_REPO_VERSION 0 #define GIT_REPO_VERSION_READ 1 -extern int repository_format_version; extern int repository_format_precious_objects; -extern int check_repository_format(void); + +struct repository_format { + int version; + int precious_objects; + int is_bare; + char *work_tree; + struct string_list unknown_extensions; +}; + +/* + * Read the repository format characteristics from the config file "path" into + * "format" struct. Returns the numeric version. On error, -1 is returned, + * format->version is set to -1, and all other fields in the struct are + * undefined. + */ +int read_repository_format(struct repository_format *format, const char *path); + +/* + * Verify that the repository described by repository_format is something we + * can read. If it is, return 0. Otherwise, return -1, and "err" will describe + * any errors encountered. + */ +int verify_repository_format(const struct repository_format *format, + struct strbuf *err); + +/* + * Check the repository format version in the path found in get_git_dir(), + * and die if it is a version we don't understand. Generally one would + * set_git_dir() before calling this, and use it only for "are we in a valid + * repo?". + */ +extern void check_repository_format(void); #define MTIME_CHANGED 0x0001 #define CTIME_CHANGED 0x0002 @@ -1526,7 +1558,6 @@ extern void git_config(config_fn_t fn, void *); extern int git_config_with_options(config_fn_t fn, void *, struct git_config_source *config_source, int respect_includes); -extern int git_config_early(config_fn_t fn, void *, const char *repo_config); extern int git_parse_ulong(const char *, unsigned long *); extern int git_parse_maybe_bool(const char *); extern int git_config_int(const char *, const char *); @@ -1550,7 +1581,6 @@ extern void git_config_set_multivar_in_file(const char *, const char *, const ch extern int git_config_rename_section(const char *, const char *); extern int git_config_rename_section_in_file(const char *, const char *, const char *); extern const char *git_etc_gitconfig(void); -extern int check_repository_format_version(const char *var, const char *value, void *cb); extern int git_env_bool(const char *, int); extern unsigned long git_env_ulong(const char *, unsigned long); extern int git_config_system(void); @@ -1188,11 +1188,12 @@ int git_config_system(void) return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); } -int git_config_early(config_fn_t fn, void *data, const char *repo_config) +static int do_git_config_sequence(config_fn_t fn, void *data) { int ret = 0, found = 0; char *xdg_config = xdg_config_home("config"); char *user_config = expand_user_path("~/.gitconfig"); + char *repo_config = git_pathdup("config"); if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) { ret += git_config_from_file(fn, git_etc_gitconfig(), @@ -1228,6 +1229,7 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config) free(xdg_config); free(user_config); + free(repo_config); return ret == 0 ? found : ret; } @@ -1235,8 +1237,6 @@ int git_config_with_options(config_fn_t fn, void *data, struct git_config_source *config_source, int respect_includes) { - char *repo_config = NULL; - int ret; struct config_include_data inc = CONFIG_INCLUDE_INIT; if (respect_includes) { @@ -1257,11 +1257,7 @@ int git_config_with_options(config_fn_t fn, void *data, else if (config_source && config_source->blob) return git_config_from_blob_ref(fn, config_source->blob, data); - repo_config = git_pathdup("config"); - ret = git_config_early(fn, data, repo_config); - if (repo_config) - free(repo_config); - return ret; + return do_git_config_sequence(fn, data); } static void git_config_raw(config_fn_t fn, void *data) diff --git a/environment.c b/environment.c index 6cc0a7780f..57acb2fe2a 100644 --- a/environment.c +++ b/environment.c @@ -25,11 +25,9 @@ int log_all_ref_updates = -1; /* unspecified */ int warn_ambiguous_refs = 1; int warn_on_object_refname_ambiguity = 1; int ref_paranoia = -1; -int repository_format_version; int repository_format_precious_objects; const char *git_commit_encoding; const char *git_log_output_encoding; -int shared_repository = PERM_UMASK; const char *apply_default_whitespace; const char *apply_default_ignorewhitespace; const char *git_attributes_file; @@ -324,3 +322,24 @@ const char *get_commit_output_encoding(void) { return git_commit_encoding ? git_commit_encoding : "UTF-8"; } + +static int the_shared_repository = PERM_UMASK; +static int need_shared_repository_from_config = 1; + +void set_shared_repository(int value) +{ + the_shared_repository = value; + need_shared_repository_from_config = 0; +} + +int get_shared_repository(void) +{ + if (need_shared_repository_from_config) { + const char *var = "core.sharedrepository"; + const char *value; + if (!git_config_get_value(var, &value)) + the_shared_repository = git_config_perm(var, value); + need_shared_repository_from_config = 0; + } + return the_shared_repository; +} @@ -702,17 +702,17 @@ static int calc_shared_perm(int mode) { int tweak; - if (shared_repository < 0) - tweak = -shared_repository; + if (get_shared_repository() < 0) + tweak = -get_shared_repository(); else - tweak = shared_repository; + tweak = get_shared_repository(); if (!(mode & S_IWUSR)) tweak &= ~0222; if (mode & S_IXUSR) /* Copy read bits to execute bits */ tweak |= (tweak & 0444) >> 2; - if (shared_repository < 0) + if (get_shared_repository() < 0) mode = (mode & ~0777) | tweak; else mode |= tweak; @@ -725,7 +725,7 @@ int adjust_shared_perm(const char *path) { int old_mode, new_mode; - if (!shared_repository) + if (!get_shared_repository()) return 0; if (get_st_mode_bits(path, &old_mode) < 0) return -1; @@ -5,7 +5,6 @@ static int inside_git_dir = -1; static int inside_work_tree = -1; static int work_tree_config_is_bogus; -static struct string_list unknown_extensions = STRING_LIST_INIT_DUP; static struct startup_info the_startup_info; struct startup_info *startup_info = &the_startup_info; @@ -373,14 +372,13 @@ void setup_work_tree(void) initialized = 1; } -static int check_repo_format(const char *var, const char *value, void *cb) +static int check_repo_format(const char *var, const char *value, void *vdata) { + struct repository_format *data = vdata; const char *ext; if (strcmp(var, "core.repositoryformatversion") == 0) - repository_format_version = git_config_int(var, value); - else if (strcmp(var, "core.sharedrepository") == 0) - shared_repository = git_config_perm(var, value); + data->version = git_config_int(var, value); else if (skip_prefix(var, "extensions.", &ext)) { /* * record any known extensions here; otherwise, @@ -390,9 +388,15 @@ static int check_repo_format(const char *var, const char *value, void *cb) if (!strcmp(ext, "noop")) ; else if (!strcmp(ext, "preciousobjects")) - repository_format_precious_objects = git_config_bool(var, value); + data->precious_objects = git_config_bool(var, value); else - string_list_append(&unknown_extensions, ext); + string_list_append(&data->unknown_extensions, ext); + } else if (strcmp(var, "core.bare") == 0) { + data->is_bare = git_config_bool(var, value); + } else if (strcmp(var, "core.worktree") == 0) { + if (!value) + return config_error_nonbool(var); + data->work_tree = xstrdup(value); } return 0; } @@ -400,56 +404,84 @@ static int check_repo_format(const char *var, const char *value, void *cb) static int check_repository_format_gently(const char *gitdir, int *nongit_ok) { struct strbuf sb = STRBUF_INIT; - const char *repo_config; - config_fn_t fn; - int ret = 0; - - string_list_clear(&unknown_extensions, 0); + struct strbuf err = STRBUF_INIT; + struct repository_format candidate; + int has_common; - if (get_common_dir(&sb, gitdir)) - fn = check_repo_format; - else - fn = check_repository_format_version; + has_common = get_common_dir(&sb, gitdir); strbuf_addstr(&sb, "/config"); - repo_config = sb.buf; + read_repository_format(&candidate, sb.buf); + strbuf_release(&sb); /* - * git_config() can't be used here because it calls git_pathdup() - * to get $GIT_CONFIG/config. That call will make setup_git_env() - * set git_dir to ".git". - * - * We are in gitdir setup, no git dir has been found useable yet. - * Use a gentler version of git_config() to check if this repo - * is a good one. + * For historical use of check_repository_format() in git-init, + * we treat a missing config as a silent "ok", even when nongit_ok + * is unset. */ - git_config_early(fn, NULL, repo_config); - if (GIT_REPO_VERSION_READ < repository_format_version) { - if (!nongit_ok) - die ("Expected git repo version <= %d, found %d", - GIT_REPO_VERSION_READ, repository_format_version); - warning("Expected git repo version <= %d, found %d", - GIT_REPO_VERSION_READ, repository_format_version); - warning("Please upgrade Git"); - *nongit_ok = -1; - ret = -1; + if (candidate.version < 0) + return 0; + + if (verify_repository_format(&candidate, &err) < 0) { + if (nongit_ok) { + warning("%s", err.buf); + strbuf_release(&err); + *nongit_ok = -1; + return -1; + } + die("%s", err.buf); } - if (repository_format_version >= 1 && unknown_extensions.nr) { + repository_format_precious_objects = candidate.precious_objects; + string_list_clear(&candidate.unknown_extensions, 0); + if (!has_common) { + if (candidate.is_bare != -1) { + is_bare_repository_cfg = candidate.is_bare; + if (is_bare_repository_cfg == 1) + inside_work_tree = -1; + } + if (candidate.work_tree) { + free(git_work_tree_cfg); + git_work_tree_cfg = candidate.work_tree; + inside_work_tree = -1; + } + } else { + free(candidate.work_tree); + } + + return 0; +} + +int read_repository_format(struct repository_format *format, const char *path) +{ + memset(format, 0, sizeof(*format)); + format->version = -1; + format->is_bare = -1; + string_list_init(&format->unknown_extensions, 1); + git_config_from_file(check_repo_format, path, format); + return format->version; +} + +int verify_repository_format(const struct repository_format *format, + struct strbuf *err) +{ + if (GIT_REPO_VERSION_READ < format->version) { + strbuf_addf(err, _("Expected git repo version <= %d, found %d"), + GIT_REPO_VERSION_READ, format->version); + return -1; + } + + if (format->version >= 1 && format->unknown_extensions.nr) { int i; - if (!nongit_ok) - die("unknown repository extension: %s", - unknown_extensions.items[0].string); + strbuf_addstr(err, _("unknown repository extensions found:")); - for (i = 0; i < unknown_extensions.nr; i++) - warning("unknown repository extension: %s", - unknown_extensions.items[i].string); - *nongit_ok = -1; - ret = -1; + for (i = 0; i < format->unknown_extensions.nr; i++) + strbuf_addf(err, "\n\t%s", + format->unknown_extensions.items[i].string); + return -1; } - strbuf_release(&sb); - return ret; + return 0; } /* @@ -965,30 +997,10 @@ int git_config_perm(const char *var, const char *value) return -(i & 0666); } -int check_repository_format_version(const char *var, const char *value, void *cb) -{ - int ret = check_repo_format(var, value, cb); - if (ret) - return ret; - if (strcmp(var, "core.bare") == 0) { - is_bare_repository_cfg = git_config_bool(var, value); - if (is_bare_repository_cfg == 1) - inside_work_tree = -1; - } else if (strcmp(var, "core.worktree") == 0) { - if (!value) - return config_error_nonbool(var); - free(git_work_tree_cfg); - git_work_tree_cfg = xstrdup(value); - inside_work_tree = -1; - } - return 0; -} - -int check_repository_format(void) +void check_repository_format(void) { check_repository_format_gently(get_git_dir(), NULL); startup_info->have_repository = 1; - return 0; } /* |