--- /dev/null
+#!/bin/sh
+
+if [ -z ${PKG+x} ]; then echo "PKG is not set"; exit 1; fi
+if [ -z ${ROOT_DIR+x} ]; then echo "ROOT_DIR is not set"; exit 1; fi
+
+echo "gofmt:"
+OUT=$(gofmt -l $ROOT_DIR)
+if [ $(echo "$OUT\c" | wc -l) -ne 0 ]; then echo "$OUT"; PROBLEM=1; fi
+
+echo "errcheck:"
+OUT=$(errcheck $PKG/...)
+if [ $(echo "$OUT\c" | wc -l) -ne 0 ]; then echo "$OUT"; PROBLEM=1; fi
+
+echo "go vet:"
+OUT=$(go tool vet -all=true -v=true $ROOT_DIR 2>&1 | grep --invert-match -E "(Checking file|\%p of wrong type|can't check non-constant format)")
+if [ $(echo "$OUT\c" | wc -l) -ne 0 ]; then echo "$OUT"; PROBLEM=1; fi
+
+echo "golint:"
+OUT=$(golint $PKG/... | grep --invert-match -E "(method DiffPrettyHtml should be DiffPrettyHTML)")
+if [ $(echo "$OUT\c" | wc -l) -ne 0 ]; then echo "$OUT"; PROBLEM=1; fi
+
+if [ -n "$PROBLEM" ]; then exit 1; fi