diff options
Diffstat (limited to 'environment.c')
| -rw-r--r-- | environment.c | 231 |
1 files changed, 214 insertions, 17 deletions
diff --git a/environment.c b/environment.c index 16c08f0697..d60b73f6a5 100644 --- a/environment.c +++ b/environment.c @@ -8,22 +8,119 @@ * are. */ #include "cache.h" +#include "refs.h" char git_default_email[MAX_GITNAME]; char git_default_name[MAX_GITNAME]; +int user_ident_explicitly_given; int trust_executable_bit = 1; -int assume_unchanged = 0; -int only_use_symrefs = 0; -int repository_format_version = 0; -char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8"; -int shared_repository = 0; -const char *apply_default_whitespace = NULL; - -static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir, - *git_graft_file; +int trust_ctime = 1; +int has_symlinks = 1; +int minimum_abbrev = 4, default_abbrev = 7; +int ignore_case; +int assume_unchanged; +int prefer_symlink_refs; +int is_bare_repository_cfg = -1; /* unspecified */ +int log_all_ref_updates = -1; /* unspecified */ +int warn_ambiguous_refs = 1; +int repository_format_version; +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; +int zlib_compression_level = Z_BEST_SPEED; +int core_compression_level; +int core_compression_seen; +int fsync_object_files; +size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; +size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; +size_t delta_base_cache_limit = 16 * 1024 * 1024; +unsigned long big_file_threshold = 512 * 1024 * 1024; +const char *log_pack_access; +const char *pager_program; +int pager_use_color = 1; +const char *editor_program; +const char *askpass_program; +const char *excludes_file; +enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; +int read_replace_refs = 1; /* NEEDSWORK: rename to use_replace_refs */ +enum eol core_eol = EOL_UNSET; +enum safe_crlf safe_crlf = SAFE_CRLF_WARN; +unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; +enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; +enum rebase_setup_type autorebase = AUTOREBASE_NEVER; +enum push_default_type push_default = PUSH_DEFAULT_MATCHING; +#ifndef OBJECT_CREATION_MODE +#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS +#endif +enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; +char *notes_ref_name; +int grafts_replace_parents = 1; +int core_apply_sparse_checkout; +struct startup_info *startup_info; + +/* Parallel index stat data preload? */ +int core_preload_index = 0; + +/* This is set by setup_git_dir_gently() and/or git_default_config() */ +char *git_work_tree_cfg; +static char *work_tree; + +static const char *namespace; +static size_t namespace_len; + +static const char *git_dir; +static char *git_object_dir, *git_index_file, *git_graft_file; + +/* + * Repository-local GIT_* environment variables + * Remember to update local_repo_env_size in cache.h when + * the size of the list changes + */ +const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = { + ALTERNATE_DB_ENVIRONMENT, + CONFIG_ENVIRONMENT, + CONFIG_DATA_ENVIRONMENT, + DB_ENVIRONMENT, + GIT_DIR_ENVIRONMENT, + GIT_WORK_TREE_ENVIRONMENT, + GRAFT_ENVIRONMENT, + INDEX_ENVIRONMENT, + NO_REPLACE_OBJECTS_ENVIRONMENT, + NULL +}; + +static char *expand_namespace(const char *raw_namespace) +{ + struct strbuf buf = STRBUF_INIT; + struct strbuf **components, **c; + + if (!raw_namespace || !*raw_namespace) + return xstrdup(""); + + strbuf_addstr(&buf, raw_namespace); + components = strbuf_split(&buf, '/'); + strbuf_reset(&buf); + for (c = components; *c; c++) + if (strcmp((*c)->buf, "/") != 0) + strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); + strbuf_list_free(components); + if (check_ref_format(buf.buf) != CHECK_REF_FORMAT_OK) + die("bad git namespace path \"%s\"", raw_namespace); + strbuf_addch(&buf, '/'); + return strbuf_detach(&buf, NULL); +} + static void setup_git_env(void) { git_dir = getenv(GIT_DIR_ENVIRONMENT); + git_dir = git_dir ? xstrdup(git_dir) : NULL; + if (!git_dir) { + git_dir = read_gitfile(DEFAULT_GIT_DIR_ENVIRONMENT); + git_dir = git_dir ? xstrdup(git_dir) : NULL; + } if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; git_object_dir = getenv(DB_ENVIRONMENT); @@ -31,8 +128,6 @@ static void setup_git_env(void) git_object_dir = xmalloc(strlen(git_dir) + 9); sprintf(git_object_dir, "%s/objects", git_dir); } - git_refs_dir = xmalloc(strlen(git_dir) + 6); - sprintf(git_refs_dir, "%s/refs", git_dir); git_index_file = getenv(INDEX_ENVIRONMENT); if (!git_index_file) { git_index_file = xmalloc(strlen(git_dir) + 7); @@ -40,16 +135,71 @@ static void setup_git_env(void) } git_graft_file = getenv(GRAFT_ENVIRONMENT); if (!git_graft_file) - git_graft_file = strdup(git_path("info/grafts")); + git_graft_file = git_pathdup("info/grafts"); + if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) + read_replace_refs = 0; + namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); + namespace_len = strlen(namespace); +} + +int is_bare_repository(void) +{ + /* if core.bare is not 'false', let's see if there is a work tree */ + return is_bare_repository_cfg && !get_git_work_tree(); +} + +int have_git_dir(void) +{ + return !!git_dir; } -char *get_git_dir(void) +const char *get_git_dir(void) { if (!git_dir) setup_git_env(); return git_dir; } +const char *get_git_namespace(void) +{ + if (!namespace) + setup_git_env(); + return namespace; +} + +const char *strip_namespace(const char *namespaced_ref) +{ + if (prefixcmp(namespaced_ref, get_git_namespace()) != 0) + return NULL; + return namespaced_ref + namespace_len; +} + +static int git_work_tree_initialized; + +/* + * Note. This works only before you used a work tree. This was added + * primarily to support git-clone to work in a new repository it just + * created, and is not meant to flip between different work trees. + */ +void set_git_work_tree(const char *new_work_tree) +{ + if (git_work_tree_initialized) { + new_work_tree = real_path(new_work_tree); + if (strcmp(new_work_tree, work_tree)) + die("internal error: work tree has already been set\n" + "Current worktree: %s\nNew worktree: %s", + work_tree, new_work_tree); + return; + } + git_work_tree_initialized = 1; + work_tree = xstrdup(real_path(new_work_tree)); +} + +const char *get_git_work_tree(void) +{ + return work_tree; +} + char *get_object_directory(void) { if (!git_object_dir) @@ -57,11 +207,41 @@ char *get_object_directory(void) return git_object_dir; } -char *get_refs_directory(void) +int odb_mkstemp(char *template, size_t limit, const char *pattern) { - if (!git_refs_dir) - setup_git_env(); - return git_refs_dir; + int fd; + /* + * we let the umask do its job, don't try to be more + * restrictive except to remove write permission. + */ + int mode = 0444; + snprintf(template, limit, "%s/%s", + get_object_directory(), pattern); + fd = git_mkstemp_mode(template, mode); + if (0 <= fd) + return fd; + + /* slow path */ + /* some mkstemp implementations erase template on failure */ + snprintf(template, limit, "%s/%s", + get_object_directory(), pattern); + safe_create_leading_directories(template); + return xmkstemp_mode(template, mode); +} + +int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1) +{ + int fd; + + snprintf(name, namesz, "%s/pack/pack-%s.keep", + get_object_directory(), sha1_to_hex(sha1)); + fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); + if (0 <= fd) + return fd; + + /* slow path */ + safe_create_leading_directories(name); + return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); } char *get_index_file(void) @@ -78,4 +258,21 @@ char *get_graft_file(void) return git_graft_file; } +int set_git_dir(const char *path) +{ + if (setenv(GIT_DIR_ENVIRONMENT, path, 1)) + return error("Could not set GIT_DIR to '%s'", path); + setup_git_env(); + return 0; +} + +const char *get_log_output_encoding(void) +{ + return git_log_output_encoding ? git_log_output_encoding + : get_commit_output_encoding(); +} +const char *get_commit_output_encoding(void) +{ + return git_commit_encoding ? git_commit_encoding : "UTF-8"; +} |