util: Add an fs helper and a test helper

util/fs.go

@@ -0,0 +1,35 @@
+// Mgmt
+// Copyright (C) 2013-2018+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package util
+
+import (
+	"fmt"
+
+	"github.com/spf13/afero"
+)
+
+// Fs is a simple wrapper to a file system to be used for standalone deploys.
+// This is basically a pass-through so that we fulfill the same interface that
+// the deploy mechanism uses.
+// NOTE: This struct is here, since I don't know where else to put it for now.
+type Fs struct {
+	*afero.Afero
+}
+
+// URI returns the unique URI of this filesystem. It returns the root path.
+func (obj *Fs) URI() string { return fmt.Sprintf("%s://"+"/", obj.Name()) }

util/test.go

@@ -0,0 +1,41 @@
+// Mgmt
+// Copyright (C) 2013-2018+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package util
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+// TestDir gets the absolute path to the test directory if it exists. This is a
+// utility function that is used in some tests.
+func TestDir(suffix string) (string, error) {
+	_, filename, _, ok := runtime.Caller(1)
+	if !ok {
+		return "", fmt.Errorf("could not determine filename")
+	}
+	dir := filepath.Dir(filename) + "/" // location of this test
+	testDir := dir + suffix             // test directory
+	if info, err := os.Stat(testDir); err != nil || !info.IsDir() {
+		return "", fmt.Errorf("error getting test dir, err was: %+v", err)
+	}
+
+	return testDir, nil
+}