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-rw-r--r--Documentation/git-credential-cache--daemon.txt6
-rw-r--r--credential-cache--daemon.c25
2 files changed, 26 insertions, 5 deletions
diff --git a/Documentation/git-credential-cache--daemon.txt b/Documentation/git-credential-cache--daemon.txt
index d15db42d43..7051c6bdf8 100644
--- a/Documentation/git-credential-cache--daemon.txt
+++ b/Documentation/git-credential-cache--daemon.txt
@@ -8,7 +8,7 @@ git-credential-cache--daemon - Temporarily store user credentials in memory
SYNOPSIS
--------
[verse]
-git credential-cache--daemon <socket>
+git credential-cache--daemon [--debug] <socket>
DESCRIPTION
-----------
@@ -21,6 +21,10 @@ for `git-credential-cache` clients. Clients may store and retrieve
credentials. Each credential is held for a timeout specified by the
client; once no credentials are held, the daemon exits.
+If the `--debug` option is specified, the daemon does not close its
+stderr stream, and may output extra diagnostics to it even after it has
+begun listening for clients.
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/credential-cache--daemon.c b/credential-cache--daemon.c
index 3b370ca5e5..c2f00498f6 100644
--- a/credential-cache--daemon.c
+++ b/credential-cache--daemon.c
@@ -2,6 +2,7 @@
#include "credential.h"
#include "unix-socket.h"
#include "sigchain.h"
+#include "parse-options.h"
static const char *socket_path;
@@ -201,7 +202,7 @@ static int serve_cache_loop(int fd)
return 1;
}
-static void serve_cache(const char *socket_path)
+static void serve_cache(const char *socket_path, int debug)
{
int fd;
@@ -211,6 +212,10 @@ static void serve_cache(const char *socket_path)
printf("ok\n");
fclose(stdout);
+ if (!debug) {
+ if (!freopen("/dev/null", "w", stderr))
+ die_errno("unable to point stderr to /dev/null");
+ }
while (serve_cache_loop(fd))
; /* nothing */
@@ -252,16 +257,28 @@ static void check_socket_directory(const char *path)
int main(int argc, const char **argv)
{
- socket_path = argv[1];
+ static const char *usage[] = {
+ "git-credential-cache--daemon [opts] <socket_path>",
+ NULL
+ };
+ int debug = 0;
+ const struct option options[] = {
+ OPT_BOOL(0, "debug", &debug,
+ N_("print debugging messages to stderr")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, NULL, options, usage, 0);
+ socket_path = argv[0];
if (!socket_path)
- die("usage: git-credential-cache--daemon <socket_path>");
+ usage_with_options(usage, options);
check_socket_directory(socket_path);
atexit(cleanup_socket);
sigchain_push_common(cleanup_socket_on_signal);
- serve_cache(socket_path);
+ serve_cache(socket_path, debug);
return 0;
}