tests/assert-clean.sh: Enforce correctness of "make clean"

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/assert-clean.sh b/tests/assert-clean.sh
new file mode 100755
index 0000000..3cd550c
--- /dev/null
+++ b/tests/assert-clean.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+set -eu
+
+if [ -n "${RECURSIVE_CHECK:-}" ]; then
+	exit
+fi
+export RECURSIVE_CHECK=true
+
+
+if [ ! -e .git ]; then
+	echo "Not in a Git repository, skipping \"$0\"" >&2
+	exit
+fi
+
+
+. tools/lib.sh
+
+D="$(mkdtemp)"
+trap 'rm -rf "$D"' EXIT
+
+
+git clone -q --depth=1 file://"$PWD" "$D"
+cd "$D"
+
+make all check 1>/dev/null 2>&1 ||:
+make -s clean
+
+
+{
+	printf '%s: "clean" target deletes all derived assets...' "$0"
+
+	if [ -n "$(git status -s)" ]; then
+		printf ' ERR.\n'
+		echo 'Repository left dirty:'
+		git status
+		exit 1
+	fi
+
+	if [ -n "$(git clean -nffdx)" ]; then
+		printf ' ERR.\n'
+		echo 'Untracked files left:'
+		git clean -ffdx --dry-run
+		exit 1
+	fi
+
+	printf ' OK\n'
+} >&2