[PATCH] config: if mtime (or size) of the config file changed since last read, reread it
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
---
This is extremely paranoic, I know.
config.c | 16 ++++++++++------
1 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/config.c b/config.c
index 05d4d8c..6765186 100644
--- a/config.c
+++ b/config.c
@@ -13,6 +13,7 @@ #define MAXNAME (256)
static const char *contents = NULL;
static int config_length = 0, config_offset = 0;
static const char *config_file_name;
+static time_t config_file_mtime = 0;
static int config_linenr;
static int get_next_char(void)
{
@@ -255,23 +256,26 @@ int git_default_config(const char *var,
int git_config_from_file(config_fn_t fn, const char *filename)
{
int ret, in_fd;
+ struct stat st;
config_offset = 0;
+ in_fd = open(filename, O_RDONLY);
+ fstat(in_fd, &st);
+
if (contents) {
- if (!strcmp(config_file_name, filename))
+ if (!strcmp(config_file_name, filename)
+ && config_file_mtime == st.st_mtime
+ && config_length == st.st_size) {
+ close(in_fd);
return git_parse_file(fn);
+ }
munmap((char*)contents, config_length);
free((char*)config_file_name);
}
- in_fd = open(filename, O_RDONLY);
-
ret = -1;
if (in_fd > 0) {
- struct stat st;
-
- fstat(in_fd, &st);
config_length = st.st_size;
contents = mmap(NULL, config_length, PROT_READ, MAP_PRIVATE,
in_fd, 0);
--
1.3.1.g5545a
Johannes Schindelin <johannes.schindelin@gmx.de>