Various munger changes

* Add analytics munger w/ munge heading
* More link autofixes
* Allow running a subset of munges
* Fix repo root detection
* Only process non-preformatted blocks
* Gendocs no longer adds the analytics link; mungedocs does that in a
  second pass.

cmd/mungedocs/analytics_test.go

@@ -0,0 +1,85 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAnalytics(t *testing.T) {
+	var cases = []struct {
+		in  string
+		out string
+	}{
+		{`aoeu`, `aoeu
+
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`},
+		{`aoeu
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+`, `aoeu
+
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`},
+		{`aoeu
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`, `aoeu
+
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`},
+		{`aoeu
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+
+
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`, `aoeu
+
+
+` + beginMungeTag("GENERATED_ANALYTICS") + `
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/path/to/file-name.md?pixel)]()
+` + endMungeTag("GENERATED_ANALYTICS") + `
+`},
+	}
+	for _, c := range cases {
+		out, err := checkAnalytics("path/to/file-name.md", []byte(c.in))
+		assert.NoError(t, err)
+		if string(out) != c.out {
+			t.Errorf("Expected \n\n%v\n\n but got \n\n%v\n\n", c.out, string(out))
+		}
+	}
+}