Default GIT_COMMITTER_NAME to login name in recieve-pack.

If GIT_COMMITTER_NAME is not available in receive-pack but reflogs
are enabled we would normally die out with an error message asking
the user to correct their environment settings.

Now that reflogs are enabled by default in (what we guessed to be)
non-bare Git repositories this may cause problems for some users
who don't have their full name in the gecos field and who don't
have access to the remote system to correct the problem.

So rather than die()'ing out in receive-pack when we try to log a
ref change and have no committer name we default to the username,
as obtained from the host's password database.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/cache.h b/cache.h
index 2d3df98dc4bee05777c95d0db1ee35b2f74f7996..b540292d669165cf144f3848e54f7494c1d37ad4 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -309,6 +309,7 @@ void datestamp(char *buf, int bufsize);
 unsigned long approxidate(const char *);
 
 extern int setup_ident(void);
+extern void ignore_missing_committer_name();
 extern const char *git_author_info(int);
 extern const char *git_committer_info(int);
 

diff --git a/ident.c b/ident.c
index e415fd35889b3c5547878221c4a113351715d8bc..d7faba6a70139020d9ee0a2f801ae2e6b567d4f4 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -221,3 +221,18 @@ const char *git_committer_info(int error_on_no_name)
                         getenv("GIT_COMMITTER_DATE"),
                         error_on_no_name);
 }
+
+void ignore_missing_committer_name()
+{
+       /* If we did not get a name from the user's gecos entry then
+        * git_default_name is empty; so instead load the username
+        * into it as a 'good enough for now' approximation of who
+        * this user is.
+        */
+       if (!*git_default_name) {
+               struct passwd *pw = getpwuid(getuid());
+               if (!pw)
+                       die("You don't exist. Go away!");
+               strlcpy(git_default_name, pw->pw_name, sizeof(git_default_name));
+       }
+}

diff --git a/receive-pack.c b/receive-pack.c
index e76d9aea31886ec9b0d287f02a12af9793fb44db..5e5510bc3dadff835324f46b0cd936ceba8f1c6e 100644 (file)
--- a/receive-pack.c
+++ b/receive-pack.c
@@ -420,6 +420,8 @@ int main(int argc, char **argv)
                die("'%s': unable to chdir or not a git archive", dir);
 
        setup_ident();
+       /* don't die if gecos is empty */
+       ignore_missing_committer_name();
        git_config(receive_pack_config);
 
        write_head_info();