tests: only do lua tests if lua is compiled-in

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

tests/setup.sh

@@ -60,6 +60,12 @@ fi
 
 FILTER_DIRECTORY=$(cd ../filters && pwd)
 
+if cgit --version | grep -F -q "[+] Lua scripting"; then
+	export CGIT_HAS_LUA=1
+else
+	export CGIT_HAS_LUA=0
+fi
+
 mkrepo() {
 	name=$1
 	count=$2
@@ -133,7 +139,10 @@ repo.commit-filter=exec:$FILTER_DIRECTORY/dump.sh
 repo.email-filter=exec:$FILTER_DIRECTORY/dump.sh
 repo.source-filter=exec:$FILTER_DIRECTORY/dump.sh
 repo.readme=master:a+b
+EOF
 
+	if [ $CGIT_HAS_LUA -eq 1 ]; then
+		cat >>cgitrc <<EOF
 repo.url=filter-lua
 repo.path=$PWD/repos/filter/.git
 repo.desc=filtered repo
@@ -143,6 +152,7 @@ repo.email-filter=lua:$FILTER_DIRECTORY/dump.lua
 repo.source-filter=lua:$FILTER_DIRECTORY/dump.lua
 repo.readme=master:a+b
 EOF
+	fi
 }
 
 cgit_query()
@@ -155,7 +165,7 @@ cgit_url()
 	CGIT_CONFIG="$PWD/cgitrc" QUERY_STRING="url=$1" cgit
 }
 
-strip_headers () {
+strip_headers() {
 	while read -r line
 	do
 		test -z "$line" && break

tests/t0111-filter.sh

@@ -3,7 +3,12 @@
 test_description='Check filtered content'
 . ./setup.sh
 
-for prefix in exec lua
+prefixes="exec"
+if [ $CGIT_HAS_LUA -eq 1 ]; then
+	prefixes="$prefixes lua"
+fi
+
+for prefix in $prefixes
 do
 	test_expect_success "generate filter-$prefix/tree/a%2bb" "
 		cgit_url 'filter-$prefix/tree/a%2bb' >tmp