test: Add gometalinter to our test suite

Add a bunch of new linters to our tests! We can uncomment each sub
linter as we fix up the few remaining issues.

test/test-golint.sh

@@ -4,6 +4,7 @@
 . test/util.sh
 
 echo running test-golint.sh
+# TODO: replace with gometalinter instead of plain golint
 # TODO: output a diff of what has changed in the golint output
 # FIXME: test a range of commits, since only the last patch is checked here
 PREVIOUS='HEAD^'

test/test-gometalinter.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# check a bunch of linters with the gometalinter
+# TODO: run this from the test-golint.sh file instead to check for deltas
+
+. test/util.sh
+
+echo running test-gometalinter.sh
+
+failures=''
+function run-test()
+{
+	$@ || failures=$( [ -n "$failures" ] && echo "$failures\\n$@" || echo "$@" )
+}
+
+ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )"	# dir!
+cd "${ROOT}"
+
+# TODO: run more linters here if we're brave...
+gml='gometalinter --disable-all'
+#gml="$gml --enable=aligncheck"
+#gml="$gml --enable=deadcode"			# TODO: only a few fixes needed
+#gml="$gml --enable=dupl"
+#gml="$gml --enable=errcheck"
+#gml="$gml --enable=gas"
+#gml="$gml --enable=goconst"
+#gml="$gml --enable=gocyclo"
+gml="$gml --enable=goimports"
+#gml="$gml --enable=golint"			# TODO: only a few fixes needed
+#gml="$gml --enable=gosimple"			# TODO: only a few fixes needed
+gml="$gml --enable=gotype"
+#gml="$gml --enable=ineffassign"		# TODO: only a few fixes needed
+#gml="$gml --enable=interfacer"			# TODO: only a few fixes needed
+#gml="$gml --enable=lll --line-length=200"	# TODO: only a few fixes needed
+gml="$gml --enable=misspell"
+#gml="$gml --enable=safesql"			# FIXME: made my machine slow
+#gml="$gml --enable=staticcheck"		# TODO: only a few fixes needed
+#gml="$gml --enable=structcheck"		# TODO: only a few fixes needed
+gml="$gml --enable=unconvert"
+#gml="$gml --enable=unparam"			# TODO: only a few fixes needed
+#gml="$gml --enable=unused"			# TODO: only a few fixes needed
+#gml="$gml --enable=varcheck"			# TODO: only a few fixes needed
+gometalinter="$gml"
+
+# loop through directories in an attempt to scan each go package
+# TODO: lint the *.go examples as individual files and not as a single *.go
+for dir in `find . -maxdepth 5 -type d -not -path './old/*' -not -path './old' -not -path './tmp/*' -not -path './tmp' -not -path './.*' -not -path './vendor/*' -not -path './examples/*'`; do
+	match="$dir/*.go"
+	#echo "match is: $match"
+	if ! ls $match &>/dev/null; then
+		#echo "skipping: $match"
+		continue	# no *.go files found
+	fi
+
+	run-test $gometalinter "$dir" || fail_test "gometalinter did not pass"
+done
+
+if [[ -n "$failures" ]]; then
+	echo 'FAIL'
+	echo 'The following tests have failed:'
+	echo -e "$failures"
+	exit 1
+fi
+echo 'PASS'