On Sun, Nov 11, 2012 at 09:02:48AM +0200, Kalle Olavi Niemitalo wrote:

> If git did the same thing as cvs here, i.e. ignore the signals in
> the parent process only and check the exit status of the editor,
> I think that would be OK.

Silly me. When I thought through the impact of Paul's patch, I knew that
we would notice signal death of the editor. But I totally forgot to
consider that the blocked signal is inherited by the child process. I
think we just need to move the signal() call to after we've forked. Like
this (on top of Paul's patch):

diff --git a/editor.c b/editor.c
index 3ca361b..0ed23ce 100644
--- a/editor.c
+++ b/editor.c
@@ -38,11 +38,20 @@ int launch_editor(const char *path, struct strbuf *buffer, 
const char *const *en
        if (strcmp(editor, ":")) {
                const char *args[] = { editor, path, NULL };
+               struct child_process p;
                int ret;
+               memset(&p, 0, sizeof(p));
+               p.argv = args;
+               p.env = env;
+               p.use_shell = 1;
+               if (start_command(&p) < 0)
+                       return error("unable to start editor '%s'", editor);
                sigchain_push(SIGINT, SIG_IGN);
-               ret = run_command_v_opt_cd_env(args, RUN_USING_SHELL, NULL, 
+               ret = finish_command(&p);
                if (ret)
                        return error("There was a problem with the editor 

Note that this will give you a slightly verbose message from git.
Potentially we could notice editor death due to SIGINT and suppress the
message, under the assumption that the user hit ^C and does not need to
be told.

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