Refactor testfiles script

.test-coverage

@@ -25,30 +25,7 @@ do
 done
 
 # Failures have incomplete results, so don't send
-if [ "$FAIL" -eq 0 ]; then
+[ "$FAIL" -ne 0 ] && exit 1
+
 goveralls -service=$CI -v -coverprofile=profile.cov
 bash <(curl -s https://codecov.io/bash) -t $CODECOV_TOKEN -f profile.cov
-fi
-
-# Test if every package has testfiles
-for dir in $(find . -name "*.go" -printf '%h\0'| sort -zu | sed -z 's/$/\n/');
-do
-  # ignore ./vendor/ completely
-  [[ $dir == ./vendor/* ]] && continue
-
-  if [ "$(ls $dir/*_test.go 2> /dev/null | wc -l)" -eq "0" ]; then
-   echo -n "no test files for $dir";
-   case $dir in
-    '.' | './database/graphite')
-      echo " - but ignored";
-      continue
-    ;;
-    *)
-      echo "";
-      FAIL=1;
-      ;;
-   esac
-  fi
-done
-
-exit $FAIL

.test-testfiles

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# checks if every desired package has test files
+
+import os
+import re
+import sys
+
+source_re = re.compile(".*\.go")
+test_re   = re.compile(".*_test\.go")
+missing   = False
+
+for root, dirs, files in os.walk("."):
+  # ignore some paths
+  if root == "." or root == "./database/graphite" or root.startswith("./vendor") or root.startswith("./."):
+    continue
+
+  # source files but not test files?
+  if len(filter(source_re.match, files)) > 0 and len(filter(test_re.match, files)) == 0:
+    print("no test files for {}".format(root))
+    missing = True
+
+if missing:
+  sys.exit(1)
+else:
+  print("every package has test files")

.travis.yml

@@ -10,6 +10,7 @@ install:
   - go get golang.org/x/tools/cmd/cover
 script:
   - ./.test-coverage travis-ci
+  - ./.test-testfiles
   - ./.travis.gofmt.sh
   - find . -type f -name '*.go' | grep -v '^./vendor/' | xargs misspell -error
   - go install github.com/FreifunkBremen/yanic