X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=config.c;h=2ae6153e5ee29ca88f52241d1ece79069d8c5875;hb=7612a1efdb0c0806b43db10ce784707aae874340;hp=5cc853508ac3ccd29a7142a032eae9df196d79ea;hpb=93dcab2937624ebb97f91807576cddb242a55a46;p=git.git

diff --git a/config.c b/config.c
index 5cc85350..2ae6153e 100644
--- a/config.c
+++ b/config.c
@@ -11,6 +11,7 @@
 #define MAXNAME (256)
 
 static FILE *config_file;
+static const char *config_file_name;
 static int config_linenr;
 static int get_next_char(void)
 {
@@ -59,6 +60,12 @@ static char *parse_value(void)
 			space = 1;
 			continue;
 		}
+		if (!quote) {
+			if (c == ';' || c == '#') {
+				comment = 1;
+				continue;
+			}
+		}
 		if (space) {
 			if (len)
 				value[len++] = ' ';
@@ -92,12 +99,6 @@ static char *parse_value(void)
 			quote = 1-quote;
 			continue;
 		}
-		if (!quote) {
-			if (c == ';' || c == '#') {
-				comment = 1;
-				continue;
-			}
-		}
 		value[len++] = c;
 	}
 }
@@ -133,6 +134,41 @@ static int get_value(config_fn_t fn, char *name, unsigned int len)
 	return fn(name, value);
 }
 
+static int get_extended_base_var(char *name, int baselen, int c)
+{
+	do {
+		if (c == '\n')
+			return -1;
+		c = get_next_char();
+	} while (isspace(c));
+
+	/* We require the format to be '[base "extension"]' */
+	if (c != '"')
+		return -1;
+	name[baselen++] = '.';
+
+	for (;;) {
+		int c = get_next_char();
+		if (c == '\n')
+			return -1;
+		if (c == '"')
+			break;
+		if (c == '\\') {
+			c = get_next_char();
+			if (c == '\n')
+				return -1;
+		}
+		name[baselen++] = c;
+		if (baselen > MAXNAME / 2)
+			return -1;
+	}
+
+	/* Final ']' */
+	if (get_next_char() != ']')
+		return -1;
+	return baselen;
+}
+
 static int get_base_var(char *name)
 {
 	int baselen = 0;
@@ -143,6 +179,8 @@ static int get_base_var(char *name)
 			return -1;
 		if (c == ']')
 			return baselen;
+		if (isspace(c))
+			return get_extended_base_var(name, baselen, c);
 		if (!isalnum(c) && c != '.')
 			return -1;
 		if (baselen > MAXNAME / 2)
@@ -186,7 +224,7 @@ static int git_parse_file(config_fn_t fn)
 		if (get_value(fn, var, baselen+1) < 0)
 			break;
 	}
-	die("bad config file line %d", config_linenr);
+	die("bad config file line %d in %s", config_linenr, config_file_name);
 }
 
 int git_config_int(const char *name, const char *value)
@@ -197,7 +235,7 @@ int git_config_int(const char *name, const char *value)
 		if (!*end)
 			return val;
 	}
-	die("bad config value for '%s'", name);
+	die("bad config value for '%s' in %s", name, config_file_name);
 }
 
 int git_config_bool(const char *name, const char *value)
@@ -221,8 +259,23 @@ int git_default_config(const char *var, const char *value)
 		return 0;
 	}
 
-	if (!strcmp(var, "core.symrefsonly")) {
-		only_use_symrefs = git_config_bool(var, value);
+	if (!strcmp(var, "core.ignorestat")) {
+		assume_unchanged = git_config_bool(var, value);
+		return 0;
+	}
+
+	if (!strcmp(var, "core.prefersymlinkrefs")) {
+		prefer_symlink_refs = git_config_bool(var, value);
+		return 0;
+	}
+
+	if (!strcmp(var, "core.logallrefupdates")) {
+		log_all_ref_updates = git_config_bool(var, value);
+		return 0;
+	}
+
+	if (!strcmp(var, "core.warnambiguousrefs")) {
+		warn_ambiguous_refs = git_config_bool(var, value);
 		return 0;
 	}
 
@@ -236,25 +289,37 @@ int git_default_config(const char *var, const char *value)
 		return 0;
 	}
 
-	/* Add other config variables here.. */
+	if (!strcmp(var, "i18n.commitencoding")) {
+		strncpy(git_commit_encoding, value, sizeof(git_commit_encoding));
+		return 0;
+	}
+
+	/* Add other config variables here and to Documentation/config.txt. */
 	return 0;
 }
 
-int git_config(config_fn_t fn)
+int git_config_from_file(config_fn_t fn, const char *filename)
 {
 	int ret;
-	FILE *f = fopen(git_path("config"), "r");
+	FILE *f = fopen(filename, "r");
 
 	ret = -1;
 	if (f) {
 		config_file = f;
+		config_file_name = filename;
 		config_linenr = 1;
 		ret = git_parse_file(fn);
 		fclose(f);
+		config_file_name = NULL;
 	}
 	return ret;
 }
 
+int git_config(config_fn_t fn)
+{
+	return git_config_from_file(fn, git_path("config"));
+}
+
 /*
  * Find all the stuff for git_config_set() below.
  */
@@ -312,16 +377,43 @@ static int store_aux(const char* key, const char* value)
 			store.offset[store.seen] = ftell(config_file);
 			store.state = KEY_SEEN;
 			store.seen++;
-		} else if(!strncmp(key, store.key, store.baselen))
-			store.state = SECTION_SEEN;
+		} else {
+			if (strrchr(key, '.') - key == store.baselen &&
+			      !strncmp(key, store.key, store.baselen)) {
+					store.state = SECTION_SEEN;
+					store.offset[store.seen] = ftell(config_file);
+			}
+		}
 	}
 	return 0;
 }
 
 static void store_write_section(int fd, const char* key)
 {
+	const char *dot = strchr(key, '.');
+	int len1 = store.baselen, len2 = -1;
+
+	dot = strchr(key, '.');
+	if (dot) {
+		int dotlen = dot - key;
+		if (dotlen < len1) {
+			len2 = len1 - dotlen - 1;
+			len1 = dotlen;
+		}
+	}
+
 	write(fd, "[", 1);
-	write(fd, key, store.baselen);
+	write(fd, key, len1);
+	if (len2 >= 0) {
+		write(fd, " \"", 2);
+		while (--len2 >= 0) {
+			unsigned char c = *++dot;
+			if (c == '"')
+				write(fd, "\\", 1);
+			write(fd, &c, 1);
+		}
+		write(fd, "\"", 1);
+	}
 	write(fd, "]\n", 2);
 }
 
@@ -395,9 +487,9 @@ int git_config_set(const char* key, const char* value)
 int git_config_set_multivar(const char* key, const char* value,
 	const char* value_regex, int multi_replace)
 {
-	int i;
-	struct stat st;
-	int fd;
+	int i, dot;
+	int fd = -1, in_fd;
+	int ret;
 	char* config_filename = strdup(git_path("config"));
 	char* lock_file = strdup(git_path("config.lock"));
 	const char* last_dot = strrchr(key, '.');
@@ -407,9 +499,10 @@ int git_config_set_multivar(const char* key, const char* value,
 	 * key name separated by a dot, we have to know where the dot is.
 	 */
 
-	if (last_dot == NULL) {	
+	if (last_dot == NULL) {
 		fprintf(stderr, "key does not contain a section: %s\n", key);
-		return 2;
+		ret = 2;
+		goto out_free;
 	}
 	store.baselen = last_dot - key;
 
@@ -419,15 +512,23 @@ int git_config_set_multivar(const char* key, const char* value,
 	 * Validate the key and while at it, lower case it for matching.
 	 */
 	store.key = (char*)malloc(strlen(key)+1);
-	for (i = 0; key[i]; i++)
-		if (i != store.baselen &&
-				((!isalnum(key[i]) && key[i] != '.') ||
-				 (i == store.baselen+1 && !isalpha(key[i])))) {
-			fprintf(stderr, "invalid key: %s\n", key);
-			free(store.key);
-			return 1;
-		} else
-			store.key[i] = tolower(key[i]);
+	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 (!isalnum(c) || (i == store.baselen+1 && !isalpha(c))) {
+				fprintf(stderr, "invalid key: %s\n", key);
+				free(store.key);
+				ret = 1;
+				goto out_free;
+			}
+			c = tolower(c);
+		}
+		store.key[i] = c;
+	}
 	store.key[i] = 0;
 
 	/*
@@ -438,35 +539,34 @@ int git_config_set_multivar(const char* key, const char* value,
 	if (fd < 0) {
 		fprintf(stderr, "could not lock config file\n");
 		free(store.key);
-		return -1;
+		ret = -1;
+		goto out_free;
 	}
 
 	/*
 	 * If .git/config does not exist yet, write a minimal version.
 	 */
-	if (stat(config_filename, &st)) {
-		static const char contents[] =
-			"#\n"
-			"# This is the config file\n"
-			"#\n"
-			"\n";
-
+	in_fd = open(config_filename, O_RDONLY);
+	if ( in_fd < 0 ) {
 		free(store.key);
 
+		if ( ENOENT != errno ) {
+			error("opening %s: %s", config_filename,
+			      strerror(errno));
+			ret = 3; /* same as "invalid config file" */
+			goto out_free;
+		}
 		/* if nothing to unset, error out */
 		if (value == NULL) {
-			close(fd);
-			unlink(lock_file);
-			return 5;
+			ret = 5;
+			goto out_free;
 		}
 
 		store.key = (char*)key;
-
-		write(fd, contents, sizeof(contents)-1);
 		store_write_section(fd, key);
 		store_write_pair(fd, key, value);
 	} else{
-		int in_fd;
+		struct stat st;
 		char* contents;
 		int i, copy_begin, copy_end, new_line = 0;
 
@@ -482,10 +582,11 @@ int git_config_set_multivar(const char* key, const char* value,
 			store.value_regex = (regex_t*)malloc(sizeof(regex_t));
 			if (regcomp(store.value_regex, value_regex,
 					REG_EXTENDED)) {
-				fprintf(stderr, "Invalid pattern: %s",
+				fprintf(stderr, "Invalid pattern: %s\n",
 					value_regex);
 				free(store.value_regex);
-				return 6;
+				ret = 6;
+				goto out_free;
 			}
 		}
 
@@ -506,7 +607,8 @@ int git_config_set_multivar(const char* key, const char* value,
 				regfree(store.value_regex);
 				free(store.value_regex);
 			}
-			return 3;
+			ret = 3;
+			goto out_free;
 		}
 
 		free(store.key);
@@ -518,12 +620,11 @@ int git_config_set_multivar(const char* key, const char* value,
 		/* if nothing to unset, or too many matches, error out */
 		if ((store.seen == 0 && value == NULL) ||
 				(store.seen > 1 && multi_replace == 0)) {
-			close(fd);
-			unlink(lock_file);
-			return 5;
+			ret = 5;
+			goto out_free;
 		}
 
-		in_fd = open(config_filename, O_RDONLY, 0666);
+		fstat(in_fd, &st);
 		contents = mmap(NULL, st.st_size, PROT_READ,
 			MAP_PRIVATE, in_fd, 0);
 		close(in_fd);
@@ -567,14 +668,24 @@ int git_config_set_multivar(const char* key, const char* value,
 		unlink(config_filename);
 	}
 
-	close(fd);
-
 	if (rename(lock_file, config_filename) < 0) {
 		fprintf(stderr, "Could not rename the lock file?\n");
-		return 4;
+		ret = 4;
+		goto out_free;
 	}
 
-	return 0;
+	ret = 0;
+
+out_free:
+	if (0 <= fd)
+		close(fd);
+	if (config_filename)
+		free(config_filename);
+	if (lock_file) {
+		unlink(lock_file);
+		free(lock_file);
+	}
+	return ret;
 }