[RFC PATCH 1/2] Always write push cert to disk

[Shikher Verma]

receive-pack: store push cert irrespective of hook

Push certificates are being saved to disk only when hook was
attached on the server side, which may complicate tooling and
interaction with the certificates. Add write_push_cert_sha1() to
save push cert to disk regardless of this.

Signed-off-by: Shikher Verma <r...@shikherverma.com>
Helped-by: Santiago Torres-Arias <santi...@nyu.edu>
---
 builtin/receive-pack.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 52c63ebfd..79195005f 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -619,7 +619,15 @@ static int check_cert_push_options(const struct 
string_list *push_options)
        return retval;
 }
 
-static void prepare_push_cert_sha1(struct child_process *proc)
+static void write_push_cert_sha1()
+{
+       if (!push_cert.len)
+               return;
+       if (write_sha1_file(push_cert.buf, push_cert.len, "blob", 
push_cert_sha1))
+               hashclr(push_cert_sha1);
+}
+
+static void prepare_push_cert(struct child_process *proc)
 {
        static int already_done;
 
@@ -632,9 +640,6 @@ static void prepare_push_cert_sha1(struct child_process 
*proc)
                int bogs /* beginning_of_gpg_sig */;
 
                already_done = 1;
-               if (write_sha1_file(push_cert.buf, push_cert.len, "blob", 
push_cert_sha1))
-                       hashclr(push_cert_sha1);
-
                memset(&sigcheck, '\0', sizeof(sigcheck));
                sigcheck.result = 'N';
 
@@ -727,7 +732,7 @@ static int run_and_feed_hook(const char *hook_name, feed_fn 
feed,
                proc.err = muxer.in;
        }
 
-       prepare_push_cert_sha1(&proc);
+       prepare_push_cert(&proc);
 
        code = start_command(&proc);
        if (code) {
@@ -1980,6 +1985,7 @@ int cmd_receive_pack(int argc, const char **argv, const 
char *prefix)
                        for (cmd = commands; cmd; cmd = cmd->next)
                                cmd->error_string = "inconsistent push options";
                }
+               write_push_cert_sha1();
 
                prepare_shallow_info(&si, &shallow);
                if (!si.nr_ours && !si.nr_theirs)
-- 
2.14.1