From f32f6411ff604a879151ab329907afca351ea3b6 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Mon, 26 Dec 2016 18:21:37 +0000
Subject: [PATCH] git: do not fail to commit if committer is anonymous

(cherry picked from commit c86046090e1dc31035e4db12e4f29562634d621e)
---
 IkiWiki/Plugin/git.pm | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
index 5ec68b0ce..5d7415ffa 100644
--- a/IkiWiki/Plugin/git.pm
+++ b/IkiWiki/Plugin/git.pm
@@ -600,18 +600,24 @@ sub rcs_commit_helper (@) {
 		elsif (defined $params{session}->remote_addr()) {
 			$u=$params{session}->remote_addr();
 		}
-		if (defined $u) {
+		if (length $u) {
 			$u=encode_utf8($u);
 			$ENV{GIT_AUTHOR_NAME}=$u;
 		}
+		else {
+			$u = 'anonymous';
+		}
 		if (defined $params{session}->param("nickname")) {
 			$u=encode_utf8($params{session}->param("nickname"));
 			$u=~s/\s+/_/g;
 			$u=~s/[^-_0-9[:alnum:]]+//g;
 		}
-		if (defined $u) {
+		if (length $u) {
 			$ENV{GIT_AUTHOR_EMAIL}="$u\@web";
 		}
+		else {
+			$ENV{GIT_AUTHOR_EMAIL}='anonymous@web';
+		}
 	}
 
 	ensure_committer();
-- 
2.39.2