diff options
Diffstat (limited to 'config.c')
-rw-r--r-- | config.c | 510 |
1 files changed, 414 insertions, 96 deletions
@@ -7,6 +7,8 @@ */ #include "cache.h" #include "exec_cmd.h" +#include "strbuf.h" +#include "quote.h" #define MAXNAME (256) @@ -18,6 +20,91 @@ static int zlib_compression_seen; const char *config_exclusive_filename = NULL; +struct config_item { + struct config_item *next; + char *name; + char *value; +}; +static struct config_item *config_parameters; +static struct config_item **config_parameters_tail = &config_parameters; + +static void lowercase(char *p) +{ + for (; *p; p++) + *p = tolower(*p); +} + +void git_config_push_parameter(const char *text) +{ + struct strbuf env = STRBUF_INIT; + const char *old = getenv(CONFIG_DATA_ENVIRONMENT); + if (old) { + strbuf_addstr(&env, old); + strbuf_addch(&env, ' '); + } + sq_quote_buf(&env, text); + setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); + strbuf_release(&env); +} + +int git_config_parse_parameter(const char *text) +{ + struct config_item *ct; + struct strbuf tmp = STRBUF_INIT; + struct strbuf **pair; + strbuf_addstr(&tmp, text); + pair = strbuf_split(&tmp, '='); + if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') + strbuf_setlen(pair[0], pair[0]->len - 1); + strbuf_trim(pair[0]); + if (!pair[0]->len) { + strbuf_list_free(pair); + return -1; + } + ct = xcalloc(1, sizeof(struct config_item)); + ct->name = strbuf_detach(pair[0], NULL); + if (pair[1]) { + strbuf_trim(pair[1]); + ct->value = strbuf_detach(pair[1], NULL); + } + strbuf_list_free(pair); + lowercase(ct->name); + *config_parameters_tail = ct; + config_parameters_tail = &ct->next; + return 0; +} + +int git_config_parse_environment(void) { + const char *env = getenv(CONFIG_DATA_ENVIRONMENT); + char *envw; + const char **argv = NULL; + int nr = 0, alloc = 0; + int i; + + if (!env) + return 0; + /* sq_dequote will write over it */ + envw = xstrdup(env); + + if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { + free(envw); + return error("bogus format in " CONFIG_DATA_ENVIRONMENT); + } + + for (i = 0; i < nr; i++) { + if (git_config_parse_parameter(argv[i]) < 0) { + error("bogus config parameter: %s", argv[i]); + free(argv); + free(envw); + return -1; + } + } + + free(argv); + free(envw); + return 0; +} + static int get_next_char(void) { int c; @@ -51,7 +138,7 @@ static char *parse_value(void) for (;;) { int c = get_next_char(); - if (len >= sizeof(value)) + if (len >= sizeof(value) - 1) return NULL; if (c == '\n') { if (quote) @@ -62,7 +149,8 @@ static char *parse_value(void) if (comment) continue; if (isspace(c) && !quote) { - space = 1; + if (len) + space++; continue; } if (!quote) { @@ -71,11 +159,8 @@ static char *parse_value(void) continue; } } - if (space) { - if (len) - value[len++] = ' '; - space = 0; - } + for (; space; space--) + value[len++] = ' '; if (c == '\\') { c = get_next_char(); switch (c) { @@ -205,8 +290,27 @@ static int git_parse_file(config_fn_t fn, void *data) int baselen = 0; static char var[MAXNAME]; + /* U+FEFF Byte Order Mark in UTF8 */ + static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; + const unsigned char *bomptr = utf8_bom; + for (;;) { int c = get_next_char(); + if (bomptr && *bomptr) { + /* We are at the file beginning; skip UTF8-encoded BOM + * if present. Sane editors won't put this in on their + * own, but e.g. Windows Notepad will do it happily. */ + if ((unsigned char) c == *bomptr) { + bomptr++; + continue; + } else { + /* Do not tolerate partial BOM. */ + if (bomptr != utf8_bom) + break; + /* No BOM at file beginning. Cool. */ + bomptr = NULL; + } + } if (c == '\n') { if (config_file_eof) return 0; @@ -255,7 +359,7 @@ static int parse_unit_factor(const char *end, unsigned long *val) return 0; } -int git_parse_long(const char *value, long *ret) +static int git_parse_long(const char *value, long *ret) { if (value && *value) { char *end; @@ -291,7 +395,7 @@ static void die_bad_config(const char *name) int git_config_int(const char *name, const char *value) { - long ret; + long ret = 0; if (!git_parse_long(value, &ret)) die_bad_config(name); return ret; @@ -305,17 +409,40 @@ unsigned long git_config_ulong(const char *name, const char *value) return ret; } -int git_config_bool_or_int(const char *name, const char *value, int *is_bool) +static int git_config_maybe_bool_text(const char *name, const char *value) { - *is_bool = 1; if (!value) return 1; if (!*value) return 0; - if (!strcasecmp(value, "true") || !strcasecmp(value, "yes")) + if (!strcasecmp(value, "true") + || !strcasecmp(value, "yes") + || !strcasecmp(value, "on")) return 1; - if (!strcasecmp(value, "false") || !strcasecmp(value, "no")) + if (!strcasecmp(value, "false") + || !strcasecmp(value, "no") + || !strcasecmp(value, "off")) return 0; + return -1; +} + +int git_config_maybe_bool(const char *name, const char *value) +{ + long v = git_config_maybe_bool_text(name, value); + if (0 <= v) + return v; + if (git_parse_long(value, &v)) + return !!v; + return -1; +} + +int git_config_bool_or_int(const char *name, const char *value, int *is_bool) +{ + int v = git_config_maybe_bool_text(name, value); + if (0 <= v) { + *is_bool = 1; + return v; + } *is_bool = 0; return git_config_int(name, value); } @@ -334,6 +461,16 @@ int git_config_string(const char **dest, const char *var, const char *value) return 0; } +int git_config_pathname(const char **dest, const char *var, const char *value) +{ + if (!value) + return config_error_nonbool(var); + *dest = expand_user_path(value); + if (!*dest) + die("Failed to expand user dir in: '%s'", value); + return 0; +} + static int git_default_core_config(const char *var, const char *value) { /* This needs a better name */ @@ -434,7 +571,9 @@ static int git_default_core_config(const char *var, const char *value) if (!strcmp(var, "core.autocrlf")) { if (value && !strcasecmp(value, "input")) { - auto_crlf = -1; + if (eol == EOL_CRLF) + return error("core.autocrlf=input conflicts with core.eol=crlf"); + auto_crlf = AUTO_CRLF_INPUT; return 0; } auto_crlf = git_config_bool(var, value); @@ -450,14 +589,36 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.eol")) { + if (value && !strcasecmp(value, "lf")) + eol = EOL_LF; + else if (value && !strcasecmp(value, "crlf")) + eol = EOL_CRLF; + else if (value && !strcasecmp(value, "native")) + eol = EOL_NATIVE; + else + eol = EOL_UNSET; + if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) + return error("core.autocrlf=input conflicts with core.eol=crlf"); + return 0; + } + + if (!strcmp(var, "core.notesref")) { + notes_ref_name = xstrdup(value); + return 0; + } + if (!strcmp(var, "core.pager")) return git_config_string(&pager_program, var, value); if (!strcmp(var, "core.editor")) return git_config_string(&editor_program, var, value); + if (!strcmp(var, "core.askpass")) + return git_config_string(&askpass_program, var, value); + if (!strcmp(var, "core.excludesfile")) - return git_config_string(&excludes_file, var, value); + return git_config_pathname(&excludes_file, var, value); if (!strcmp(var, "core.whitespace")) { if (!value) @@ -471,6 +632,26 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.preloadindex")) { + core_preload_index = git_config_bool(var, value); + return 0; + } + + if (!strcmp(var, "core.createobject")) { + if (!strcmp(value, "rename")) + object_creation_mode = OBJECT_CREATION_USES_RENAMES; + else if (!strcmp(value, "link")) + object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; + else + die("Invalid mode for object creation: %s", value); + return 0; + } + + if (!strcmp(var, "core.sparsecheckout")) { + core_apply_sparse_checkout = git_config_bool(var, value); + return 0; + } + /* Add other config variables here and to Documentation/config.txt. */ return 0; } @@ -481,8 +662,7 @@ static int git_default_user_config(const char *var, const char *value) if (!value) return config_error_nonbool(var); strlcpy(git_default_name, value, sizeof(git_default_name)); - if (git_default_email[0]) - user_ident_explicitly_given = 1; + user_ident_explicitly_given |= IDENT_NAME_GIVEN; return 0; } @@ -490,8 +670,7 @@ static int git_default_user_config(const char *var, const char *value) if (!value) return config_error_nonbool(var); strlcpy(git_default_email, value, sizeof(git_default_email)); - if (git_default_name[0]) - user_ident_explicitly_given = 1; + user_ident_explicitly_given |= IDENT_MAIL_GIVEN; return 0; } @@ -541,6 +720,42 @@ static int git_default_branch_config(const char *var, const char *value) return 0; } +static int git_default_push_config(const char *var, const char *value) +{ + if (!strcmp(var, "push.default")) { + if (!value) + return config_error_nonbool(var); + else if (!strcmp(value, "nothing")) + push_default = PUSH_DEFAULT_NOTHING; + else if (!strcmp(value, "matching")) + push_default = PUSH_DEFAULT_MATCHING; + else if (!strcmp(value, "upstream")) + push_default = PUSH_DEFAULT_UPSTREAM; + else if (!strcmp(value, "tracking")) /* deprecated */ + push_default = PUSH_DEFAULT_UPSTREAM; + else if (!strcmp(value, "current")) + push_default = PUSH_DEFAULT_CURRENT; + else { + error("Malformed value for %s: %s", var, value); + return error("Must be one of nothing, matching, " + "tracking or current."); + } + return 0; + } + + /* Add other config variables here and to Documentation/config.txt. */ + return 0; +} + +static int git_default_mailmap_config(const char *var, const char *value) +{ + if (!strcmp(var, "mailmap.file")) + return git_config_string(&git_mailmap_file, var, value); + + /* Add other config variables here and to Documentation/config.txt. */ + return 0; +} + int git_default_config(const char *var, const char *value, void *dummy) { if (!prefixcmp(var, "core.")) @@ -555,6 +770,15 @@ int git_default_config(const char *var, const char *value, void *dummy) if (!prefixcmp(var, "branch.")) return git_default_branch_config(var, value); + if (!prefixcmp(var, "push.")) + return git_default_push_config(var, value); + + if (!prefixcmp(var, "mailmap.")) + return git_default_mailmap_config(var, value); + + if (!prefixcmp(var, "advice.")) + return git_default_advice_config(var, value); + if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { pager_use_color = git_config_bool(var,value); return 0; @@ -590,7 +814,7 @@ const char *git_etc_gitconfig(void) return system_wide; } -static int git_env_bool(const char *k, int def) +int git_env_bool(const char *k, int def) { const char *v = getenv(k); return v ? git_config_bool(k, v) : def; @@ -606,33 +830,67 @@ int git_config_global(void) return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0); } -int git_config(config_fn_t fn, void *data) +int git_config_from_parameters(config_fn_t fn, void *data) { - int ret = 0; - char *repo_config = NULL; + static int loaded_environment; + const struct config_item *ct; + + if (!loaded_environment) { + if (git_config_parse_environment() < 0) + return -1; + loaded_environment = 1; + } + for (ct = config_parameters; ct; ct = ct->next) + if (fn(ct->name, ct->value, data) < 0) + return -1; + return 0; +} + +int git_config_early(config_fn_t fn, void *data, const char *repo_config) +{ + int ret = 0, found = 0; const char *home = NULL; - /* $GIT_CONFIG makes git read _only_ the given config file, - * $GIT_CONFIG_LOCAL will make it process it in addition to the - * global config file, the same way it would the per-repository - * config file otherwise. */ + /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ if (config_exclusive_filename) return git_config_from_file(fn, config_exclusive_filename, data); - if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) + if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { ret += git_config_from_file(fn, git_etc_gitconfig(), data); + found += 1; + } home = getenv("HOME"); if (git_config_global() && home) { char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); - if (!access(user_config, R_OK)) + if (!access(user_config, R_OK)) { ret += git_config_from_file(fn, user_config, data); + found += 1; + } free(user_config); } + if (repo_config && !access(repo_config, R_OK)) { + ret += git_config_from_file(fn, repo_config, data); + found += 1; + } + + ret += git_config_from_parameters(fn, data); + if (config_parameters) + found += 1; + + return ret == 0 ? found : ret; +} + +int git_config(config_fn_t fn, void *data) +{ + char *repo_config = NULL; + int ret; + repo_config = git_pathdup("config"); - ret += git_config_from_file(fn, repo_config, data); - free(repo_config); + ret = git_config_early(fn, data, repo_config); + if (repo_config) + free(repo_config); return ret; } @@ -644,16 +902,16 @@ int git_config(config_fn_t fn, void *data) static struct { int baselen; - char* key; + char *key; int do_not_match; - regex_t* value_regex; + regex_t *value_regex; int multi_replace; size_t offset[MAX_MATCHES]; enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; int seen; } store; -static int matches(const char* key, const char* value) +static int matches(const char *key, const char *value) { return !strcmp(key, store.key) && (store.value_regex == NULL || @@ -661,7 +919,7 @@ static int matches(const char* key, const char* value) !regexec(store.value_regex, value, 0, NULL, 0))); } -static int store_aux(const char* key, const char* value, void *cb) +static int store_aux(const char *key, const char *value, void *cb) { const char *ep; size_t section_len; @@ -730,13 +988,12 @@ static int write_error(const char *filename) return 4; } -static int store_write_section(int fd, const char* key) +static int store_write_section(int fd, const char *key) { const char *dot; int i, success; - struct strbuf sb; + struct strbuf sb = STRBUF_INIT; - strbuf_init(&sb, 0); dot = memchr(key, '.', store.baselen); if (dot) { strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); @@ -756,12 +1013,12 @@ static int store_write_section(int fd, const char* key) return success; } -static int store_write_pair(int fd, const char* key, const char* value) +static int store_write_pair(int fd, const char *key, const char *value) { int i, success; int length = strlen(key + store.baselen + 1); const char *quote = ""; - struct strbuf sb; + struct strbuf sb = STRBUF_INIT; /* * Check to see if the value needs to be surrounded with a dq pair. @@ -778,7 +1035,6 @@ static int store_write_pair(int fd, const char* key, const char* value) if (i && value[i - 1] == ' ') quote = "\""; - strbuf_init(&sb, 0); strbuf_addf(&sb, "\t%.*s = %s", length, key + store.baselen + 1, quote); @@ -805,8 +1061,8 @@ static int store_write_pair(int fd, const char* key, const char* value) return success; } -static ssize_t find_beginning_of_line(const char* contents, size_t size, - size_t offset_, int* found_bracket) +static ssize_t find_beginning_of_line(const char *contents, size_t size, + size_t offset_, int *found_bracket) { size_t equal_offset = size, bracket_offset = size; ssize_t offset; @@ -831,12 +1087,81 @@ contline: return offset; } -int git_config_set(const char* key, const char* value) +int git_config_set(const char *key, const char *value) { return git_config_set_multivar(key, value, NULL, 0); } /* + * Auxiliary function to sanity-check and split the key into the section + * identifier and variable name. + * + * Returns 0 on success, -1 when there is an invalid character in the key and + * -2 if there is no section name in the key. + * + * store_key - pointer to char* which will hold a copy of the key with + * lowercase section and variable name + * baselen - pointer to int which will hold the length of the + * section + subsection part, can be NULL + */ +int git_config_parse_key(const char *key, char **store_key, int *baselen_) +{ + int i, dot, baselen; + const char *last_dot = strrchr(key, '.'); + + /* + * Since "key" actually contains the section name and the real + * key name separated by a dot, we have to know where the dot is. + */ + + if (last_dot == NULL || last_dot == key) { + error("key does not contain a section: %s", key); + return -2; + } + + if (!last_dot[1]) { + error("key does not contain variable name: %s", key); + return -2; + } + + baselen = last_dot - key; + if (baselen_) + *baselen_ = baselen; + + /* + * Validate the key and while at it, lower case it for matching. + */ + *store_key = xmalloc(strlen(key) + 1); + + dot = 0; + for (i = 0; key[i]; i++) { + unsigned char c = key[i]; + if (c == '.') + dot = 1; + /* Leave the extended basename untouched.. */ + if (!dot || i > baselen) { + if (!iskeychar(c) || + (i == baselen + 1 && !isalpha(c))) { + error("invalid key: %s", key); + goto out_free_ret_1; + } + c = tolower(c); + } else if (c == '\n') { + error("invalid key (newline): %s", key); + goto out_free_ret_1; + } + (*store_key)[i] = c; + } + (*store_key)[i] = 0; + + return 0; + +out_free_ret_1: + free(*store_key); + return -1; +} + +/* * If value==NULL, unset in (remove from) config, * if value_regex!=NULL, disregard key/value pairs where value does not match. * if multi_replace==0, nothing, or only one matching key/value is replaced, @@ -859,62 +1184,26 @@ int git_config_set(const char* key, const char* value) * - the config file is removed and the lock file rename()d to it. * */ -int git_config_set_multivar(const char* key, const char* value, - const char* value_regex, int multi_replace) +int git_config_set_multivar(const char *key, const char *value, + const char *value_regex, int multi_replace) { - int i, dot; int fd = -1, in_fd; int ret; - char* config_filename; + char *config_filename; struct lock_file *lock = NULL; - const char* last_dot = strrchr(key, '.'); if (config_exclusive_filename) config_filename = xstrdup(config_exclusive_filename); else config_filename = git_pathdup("config"); - /* - * Since "key" actually contains the section name and the real - * key name separated by a dot, we have to know where the dot is. - */ - - if (last_dot == NULL) { - error("key does not contain a section: %s", key); - ret = 2; + /* parse-key returns negative; flip the sign to feed exit(3) */ + ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); + if (ret) goto out_free; - } - store.baselen = last_dot - key; store.multi_replace = multi_replace; - /* - * Validate the key and while at it, lower case it for matching. - */ - store.key = xmalloc(strlen(key) + 1); - dot = 0; - for (i = 0; key[i]; i++) { - unsigned char c = key[i]; - if (c == '.') - dot = 1; - /* Leave the extended basename untouched.. */ - if (!dot || i > store.baselen) { - if (!iskeychar(c) || (i == store.baselen+1 && !isalpha(c))) { - error("invalid key: %s", key); - free(store.key); - ret = 1; - goto out_free; - } - c = tolower(c); - } else if (c == '\n') { - error("invalid key (newline): %s", key); - free(store.key); - ret = 1; - goto out_free; - } - store.key[i] = c; - } - store.key[i] = 0; /* * The lock serves a purpose in addition to locking: the new @@ -923,7 +1212,7 @@ int git_config_set_multivar(const char* key, const char* value, lock = xcalloc(sizeof(struct lock_file), 1); fd = hold_lock_file_for_update(lock, config_filename, 0); if (fd < 0) { - error("could not lock config file %s", config_filename); + error("could not lock config file %s: %s", config_filename, strerror(errno)); free(store.key); ret = -1; goto out_free; @@ -948,13 +1237,13 @@ int git_config_set_multivar(const char* key, const char* value, goto out_free; } - store.key = (char*)key; + store.key = (char *)key; if (!store_write_section(fd, key) || !store_write_pair(fd, key, value)) goto write_err_out; } else { struct stat st; - char* contents; + char *contents; size_t contents_sz, copy_begin, copy_end; int i, new_line = 0; @@ -1040,7 +1329,7 @@ int git_config_set_multivar(const char* key, const char* value, copy_end - copy_begin) goto write_err_out; if (new_line && - write_in_full(fd, "\n", 1) != 1) + write_str_in_full(fd, "\n") != 1) goto write_err_out; } copy_begin = store.offset[i]; @@ -1096,7 +1385,9 @@ write_err_out: static int section_name_match (const char *buf, const char *name) { int i = 0, j = 0, dot = 0; - for (; buf[i] && buf[i] != ']'; i++) { + if (buf[i] != '[') + return 0; + for (i = 1; buf[i] && buf[i] != ']'; i++) { if (!dot && isspace(buf[i])) { dot = 1; if (name[j++] != '.') @@ -1117,7 +1408,17 @@ static int section_name_match (const char *buf, const char *name) if (buf[i] != name[j++]) break; } - return (buf[i] == ']' && name[j] == 0); + if (buf[i] == ']' && name[j] == 0) { + /* + * We match, now just find the right length offset by + * gobbling up any whitespace after it, as well + */ + i++; + for (; buf[i] && isspace(buf[i]); i++) + ; /* do nothing */ + return i; + } + return 0; } /* if new_name == NULL, the section is removed instead */ @@ -1147,11 +1448,13 @@ int git_config_rename_section(const char *old_name, const char *new_name) while (fgets(buf, sizeof(buf), config_file)) { int i; int length; + char *output = buf; for (i = 0; buf[i] && isspace(buf[i]); i++) ; /* do nothing */ if (buf[i] == '[') { /* it's a section */ - if (section_name_match (&buf[i+1], old_name)) { + int offset = section_name_match(&buf[i], old_name); + if (offset > 0) { ret++; if (new_name == NULL) { remove = 1; @@ -1162,14 +1465,29 @@ int git_config_rename_section(const char *old_name, const char *new_name) ret = write_error(lock->filename); goto out; } - continue; + /* + * We wrote out the new section, with + * a newline, now skip the old + * section's length + */ + output += offset + i; + if (strlen(output) > 0) { + /* + * More content means there's + * a declaration to put on the + * next line; indent with a + * tab + */ + output -= 1; + output[0] = '\t'; + } } remove = 0; } if (remove) continue; - length = strlen(buf); - if (write_in_full(out_fd, buf, length) != length) { + length = strlen(output); + if (write_in_full(out_fd, output, length) != length) { ret = write_error(lock->filename); goto out; } |