tests: add Valgrind support

Now running tests with the "--valgrind" option will run cgit under
Valgrind instead of all Git commands.

Signed-off-by: John Keeping <john@keeping.me.uk>

2 files changed, 48 insertions, 1 deletions

diff --git a/tests/setup.sh b/tests/setup.sh
index 1d8677a..5476ced 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -15,13 +15,48 @@
 # run_test 'repo index' 'cgit_url "/" | tidy -e'
 # run_test 'repo summary' 'cgit_url "/foo" | tidy -e'
 
+# We don't want to run Git commands through Valgrind, so we filter out the
+# --valgrind option here and handle it ourselves.  We copy the arguments
+# assuming that none contain a newline, although other whitespace is
+# preserved.
+LF='
+'
+test_argv=
+
+while test $# != 0
+do
+        case "$1" in
+        --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
+                cgit_valgrind=t
+                test_argv="$test_argv${LF}--verbose"
+                ;;
+        *)
+                test_argv="$test_argv$LF$1"
+                ;;
+        esac
+        shift
+done
+
+OLDIFS=$IFS
+IFS=$LF
+set -- $test_argv
+IFS=$OLDIFS
+
 : ${TEST_DIRECTORY=$(pwd)/../git/t}
 : ${TEST_OUTPUT_DIRECTORY=$(pwd)}
 TEST_NO_CREATE_REPO=YesPlease
 . "$TEST_DIRECTORY"/test-lib.sh
 
 # Prepend the directory containing cgit to PATH.
-PATH="$(pwd)/../..:$PATH"
+if test -n "$cgit_valgrind"
+then
+        GIT_VALGRIND="$TEST_DIRECTORY/valgrind"
+        CGIT_VALGRIND=$(cd ../valgrind && pwd)
+        PATH="$CGIT_VALGRIND/bin:$PATH"
+        export GIT_VALGRIND CGIT_VALGRIND
+else
+        PATH="$(pwd)/../..:$PATH"
+fi
 
 mkrepo() {
         name=$1
diff --git a/tests/valgrind/bin/cgit b/tests/valgrind/bin/cgit
new file mode 100755
index 0000000..dcdfbe5
--- /dev/null
+++ b/tests/valgrind/bin/cgit
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# Note that we currently use Git's suppression file and there are variables
+# $GIT_VALGRIND and $CGIT_VALGRIND which point to different places.
+exec valgrind -q --error-exitcode=126 \
+        --suppressions="$GIT_VALGRIND/default.supp" \
+        --gen-suppressions=all \
+        --leak-check=no \
+        --track-origins=yes \
+        --log-fd=4 \
+        --input-fd=4 \
+        "$CGIT_VALGRIND/../../cgit" "$@"