git-instaweb: add support for Apache 2.4

Detect available Apache MPMs and use first available according to
following order of precedence:
mpm_event
mpm_prefork
mpm_worker

Add authz_core module if available to avoid HTTP Error 500 errors.

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-instaweb.sh b/git-instaweb.sh
index 4aa3eb80fd25a803d291631965d009a49cfe79dc..513efa662e86cb157b8690bfb025556fa0c836f0 100755 (executable)
--- a/git-instaweb.sh
+++ b/git-instaweb.sh
@@ -345,7 +345,17 @@ PidFile "$fqgitdir/pid"
 Listen $bind$port
 EOF
 
-       for mod in mime dir env log_config
+       for mod in mpm_event mpm_prefork mpm_worker
+       do
+               if test -e $module_path/mod_${mod}.so
+               then
+                       echo "LoadModule ${mod}_module " \
+                            "$module_path/mod_${mod}.so" >> "$conf"
+                       # only one mpm module permitted
+                       break
+               fi
+       done
+       for mod in mime dir env log_config authz_core
        do
                if test -e $module_path/mod_${mod}.so
                then