*
*/
#include "cache.h"
+#include "exec_cmd.h"
#define MAXNAME (256)
die("bad config file line %d in %s", config_linenr, config_file_name);
}
-int git_config_int(const char *name, const char *value)
+static int parse_unit_factor(const char *end, unsigned long *val)
+{
+ if (!*end)
+ return 1;
+ else if (!strcasecmp(end, "k")) {
+ *val *= 1024;
+ return 1;
+ }
+ else if (!strcasecmp(end, "m")) {
+ *val *= 1024 * 1024;
+ return 1;
+ }
+ else if (!strcasecmp(end, "g")) {
+ *val *= 1024 * 1024 * 1024;
+ return 1;
+ }
+ return 0;
+}
+
+int git_parse_long(const char *value, long *ret)
+{
+ if (value && *value) {
+ char *end;
+ long val = strtol(value, &end, 0);
+ unsigned long factor = 1;
+ if (!parse_unit_factor(end, &factor))
+ return 0;
+ *ret = val * factor;
+ return 1;
+ }
+ return 0;
+}
+
+int git_parse_ulong(const char *value, unsigned long *ret)
{
if (value && *value) {
char *end;
- int val = strtol(value, &end, 0);
- if (!*end)
- return val;
- if (!strcasecmp(end, "k"))
- return val * 1024;
- if (!strcasecmp(end, "m"))
- return val * 1024 * 1024;
- if (!strcasecmp(end, "g"))
- return val * 1024 * 1024 * 1024;
- }
- die("bad config value for '%s' in %s", name, config_file_name);
+ unsigned long val = strtoul(value, &end, 0);
+ if (!parse_unit_factor(end, &val))
+ return 0;
+ *ret = val;
+ return 1;
+ }
+ return 0;
+}
+
+int git_config_int(const char *name, const char *value)
+{
+ long ret;
+ if (!git_parse_long(value, &ret))
+ die("bad config value for '%s' in %s", name, config_file_name);
+ return ret;
+}
+
+unsigned long git_config_ulong(const char *name, const char *value)
+{
+ unsigned long ret;
+ if (!git_parse_ulong(value, &ret))
+ die("bad config value for '%s' in %s", name, config_file_name);
+ return ret;
}
int git_config_bool(const char *name, const char *value)
return 0;
}
+ if (!strcmp(var, "core.pager")) {
+ pager_program = xstrdup(value);
+ return 0;
+ }
+
+ if (!strcmp(var, "core.editor")) {
+ editor_program = xstrdup(value);
+ return 0;
+ }
+
+ if (!strcmp(var, "core.excludesfile")) {
+ if (!value)
+ die("core.excludesfile without value");
+ excludes_file = xstrdup(value);
+ return 0;
+ }
+
+ if (!strcmp(var, "core.whitespace")) {
+ whitespace_rule_cfg = parse_whitespace_rule(value);
+ return 0;
+ }
+
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
return ret;
}
+const char *git_etc_gitconfig(void)
+{
+ static const char *system_wide;
+ if (!system_wide) {
+ system_wide = ETC_GITCONFIG;
+ if (!is_absolute_path(system_wide)) {
+ /* interpret path relative to exec-dir */
+ const char *exec_path = git_exec_path();
+ system_wide = prefix_path(exec_path, strlen(exec_path),
+ system_wide);
+ }
+ }
+ return system_wide;
+}
+
int git_config(config_fn_t fn)
{
int ret = 0;
* config file otherwise. */
filename = getenv(CONFIG_ENVIRONMENT);
if (!filename) {
- if (!access(ETC_GITCONFIG, R_OK))
- ret += git_config_from_file(fn, ETC_GITCONFIG);
+ if (!access(git_etc_gitconfig(), R_OK))
+ ret += git_config_from_file(fn, git_etc_gitconfig());
home = getenv("HOME");
filename = getenv(CONFIG_LOCAL_ENVIRONMENT);
if (!filename)
static int store_write_section(int fd, const char* key)
{
- const char *dot = strchr(key, '.');
- int len1 = store.baselen, len2 = -1;
+ const char *dot;
+ int i, success;
+ struct strbuf sb;
- dot = strchr(key, '.');
+ strbuf_init(&sb, 0);
+ dot = memchr(key, '.', store.baselen);
if (dot) {
- int dotlen = dot - key;
- if (dotlen < len1) {
- len2 = len1 - dotlen - 1;
- len1 = dotlen;
+ strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
+ for (i = dot - key + 1; i < store.baselen; i++) {
+ if (key[i] == '"')
+ strbuf_addch(&sb, '\\');
+ strbuf_addch(&sb, key[i]);
}
+ strbuf_addstr(&sb, "\"]\n");
+ } else {
+ strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
}
- if (write_in_full(fd, "[", 1) != 1 ||
- write_in_full(fd, key, len1) != len1)
- return 0;
- if (len2 >= 0) {
- if (write_in_full(fd, " \"", 2) != 2)
- return 0;
- while (--len2 >= 0) {
- unsigned char c = *++dot;
- if (c == '"')
- if (write_in_full(fd, "\\", 1) != 1)
- return 0;
- if (write_in_full(fd, &c, 1) != 1)
- return 0;
- }
- if (write_in_full(fd, "\"", 1) != 1)
- return 0;
- }
- if (write_in_full(fd, "]\n", 2) != 2)
- return 0;
+ success = write_in_full(fd, sb.buf, sb.len) == sb.len;
+ strbuf_release(&sb);
- return 1;
+ return success;
}
static int store_write_pair(int fd, const char* key, const char* value)
{
- int i;
- int length = strlen(key+store.baselen+1);
- int quote = 0;
+ int i, success;
+ int length = strlen(key + store.baselen + 1);
+ const char *quote = "";
+ struct strbuf sb;
- /* Check to see if the value needs to be quoted. */
+ /*
+ * Check to see if the value needs to be surrounded with a dq pair.
+ * Note that problematic characters are always backslash-quoted; this
+ * check is about not losing leading or trailing SP and strings that
+ * follow beginning-of-comment characters (i.e. ';' and '#') by the
+ * configuration parser.
+ */
if (value[0] == ' ')
- quote = 1;
+ quote = "\"";
for (i = 0; value[i]; i++)
if (value[i] == ';' || value[i] == '#')
- quote = 1;
- if (value[i-1] == ' ')
- quote = 1;
+ quote = "\"";
+ if (i && value[i - 1] == ' ')
+ quote = "\"";
+
+ strbuf_init(&sb, 0);
+ strbuf_addf(&sb, "\t%.*s = %s",
+ length, key + store.baselen + 1, quote);
- if (write_in_full(fd, "\t", 1) != 1 ||
- write_in_full(fd, key+store.baselen+1, length) != length ||
- write_in_full(fd, " = ", 3) != 3)
- return 0;
- if (quote && write_in_full(fd, "\"", 1) != 1)
- return 0;
for (i = 0; value[i]; i++)
switch (value[i]) {
case '\n':
- if (write_in_full(fd, "\\n", 2) != 2)
- return 0;
+ strbuf_addstr(&sb, "\\n");
break;
case '\t':
- if (write_in_full(fd, "\\t", 2) != 2)
- return 0;
+ strbuf_addstr(&sb, "\\t");
break;
case '"':
case '\\':
- if (write_in_full(fd, "\\", 1) != 1)
- return 0;
+ strbuf_addch(&sb, '\\');
default:
- if (write_in_full(fd, value+i, 1) != 1)
- return 0;
+ strbuf_addch(&sb, value[i]);
break;
}
- if (quote && write_in_full(fd, "\"", 1) != 1)
- return 0;
- if (write_in_full(fd, "\n", 1) != 1)
- return 0;
- return 1;
+ strbuf_addf(&sb, "%s\n", quote);
+
+ success = write_in_full(fd, sb.buf, sb.len) == sb.len;
+ strbuf_release(&sb);
+
+ return success;
}
static ssize_t find_beginning_of_line(const char* contents, size_t size,
int fd = -1, in_fd;
int ret;
char* config_filename;
- char* lock_file;
+ struct lock_file *lock = NULL;
const char* last_dot = strrchr(key, '.');
config_filename = getenv(CONFIG_ENVIRONMENT);
config_filename = git_path("config");
}
config_filename = xstrdup(config_filename);
- lock_file = xstrdup(mkpath("%s.lock", config_filename));
/*
* Since "key" actually contains the section name and the real
store.key[i] = 0;
/*
- * The lock_file serves a purpose in addition to locking: the new
+ * The lock serves a purpose in addition to locking: the new
* contents of .git/config will be written into it.
*/
- fd = open(lock_file, O_WRONLY | O_CREAT | O_EXCL, 0666);
- if (fd < 0 || adjust_shared_perm(lock_file)) {
+ lock = xcalloc(sizeof(struct lock_file), 1);
+ fd = hold_lock_file_for_update(lock, config_filename, 0);
+ if (fd < 0) {
fprintf(stderr, "could not lock config file\n");
free(store.key);
ret = -1;
goto write_err_out;
munmap(contents, contents_sz);
- unlink(config_filename);
}
- if (rename(lock_file, config_filename) < 0) {
- fprintf(stderr, "Could not rename the lock file?\n");
+ if (close(fd) || commit_lock_file(lock) < 0) {
+ fprintf(stderr, "Cannot commit config file!\n");
ret = 4;
goto out_free;
}
+ /* fd is closed, so don't try to close it below. */
+ fd = -1;
+ /*
+ * lock is committed, so don't try to roll it back below.
+ * NOTE: Since lockfile.c keeps a linked list of all created
+ * lock_file structures, it isn't safe to free(lock). It's
+ * better to just leave it hanging around.
+ */
+ lock = NULL;
ret = 0;
out_free:
if (0 <= fd)
close(fd);
+ if (lock)
+ rollback_lock_file(lock);
free(config_filename);
- if (lock_file) {
- unlink(lock_file);
- free(lock_file);
- }
return ret;
write_err_out: