Bug 1387862 - Lint python/mozlint yaml files. r=ahal

We should have CI Lint YAML files in the tree.

MozReview-Commit-ID: IMOKGhxKFJW

--HG--
extra : rebase_source : a2e47f5c5517e999fe21bac4f86491611bd0cece

python/mozlint/test/linters/badreturncode.yml

@@ -1,3 +1,4 @@
+---
 BadReturnCodeLinter:
     description: Returns an error code no matter what
     include:

python/mozlint/test/linters/explicit_path.yml

@@ -1,3 +1,4 @@
+---
 ExplicitPathLinter:
     description: Only lint a specific file name
     rule: no-foobar

python/mozlint/test/linters/external.yml

@@ -1,3 +1,4 @@
+---
 ExternalLinter:
     description: It's bad to have the string foobar in js files.
     include:

python/mozlint/test/linters/invalid_exclude.yml

@@ -1,3 +1,4 @@
+---
 BadExcludeLinter:
     description: Has an invalid exclude directive.
     exclude: [0, 1]  # should be a list of strings

python/mozlint/test/linters/invalid_extension.ym

@@ -1,3 +1,4 @@
+---
 BadExtensionLinter:
     description: Has an invalid file extension.
     type: string

python/mozlint/test/linters/invalid_include.yml

@@ -1,3 +1,4 @@
+---
 BadIncludeLinter:
     description: Has an invalid include directive.
     include: should be a list

python/mozlint/test/linters/invalid_type.yml

@@ -1,3 +1,4 @@
+---
 BadTypeLinter:
     description: Has an invalid type.
     type: invalid

python/mozlint/test/linters/missing_attrs.yml

@@ -1,2 +1,3 @@
+---
 MissingAttrsLinter:
     description: Missing type and payload

python/mozlint/test/linters/raises.yml

@@ -1,3 +1,4 @@
+---
 RaisesLinter:
     description: Raises an exception
     type: external

python/mozlint/test/linters/regex.yml

@@ -1,5 +1,8 @@
+---
 RegexLinter:
-    description: Make sure the string foobar never appears in a js variable file because it is bad.
+    description: >-
+        Make sure the string foobar never appears in a js variable
+        file because it is bad.
     rule: no-foobar
     include:
         - '**/*.js'

python/mozlint/test/linters/string.yml

@@ -1,5 +1,8 @@
+---
 StringLinter:
-    description: Make sure the string foobar never appears in browser js files because it is bad
+    description: >-
+        Make sure the string foobar never appears in browser js
+        files because it is bad
     rule: no-foobar
     include:
         - '**/*.js'

python/mozlint/test/linters/structured.yml

@@ -1,3 +1,4 @@
+---
 StructuredLinter:
     description: "It's bad to have the string foobar in js files."
     include:

tools/lint/yaml.yml

@@ -2,6 +2,7 @@ yamllint:
     description: YAML linter
     include:
         - .cron.yml
+        - python/mozlint/
         - taskcluster
     extensions: ['yml', 'yaml']
     type: external