feat(config-angular): update to latest convention (#123)

* refactor(config-angular): break out config-angular-type-enum
* feat(config-angular-type-enum): remove chore type
* feat(config-angular): disallow subject with uppercase first character
* fix(core): interprete array values for subject-case correctly
* test: adapt to new angular rules

BREAKING CHANGE

TL;DR
* chore is no longer a valid commit type
* subject with leading capitalized letter are forbidden now

Angular has removed the chore type from their
conventions as of January 2017

See angular/angular@dff6ee3#diff-6a3371457528722a734f3c51d9238c13L204
for reference

This removes the previous chore type from the list
of allowed types.

Projects using the Angular commit convention will identify commits with chore type as faulty.

Also, formerly working commit messages are now considered problems:

*  type: SOME MESSAGE
*  type: SomeMessage
*  type: Some Message

@commitlint/cli/src/cli.test.js

@@ -88,7 +88,7 @@ test('should work with husky commitmsg hook and git commit', async () => {
 
 	await execa('npm', ['install'], {cwd});
 	await execa('git', ['add', 'package.json'], {cwd});
-	await execa('git', ['commit', '-m', '"chore: this should work"'], {cwd});
+	await execa('git', ['commit', '-m', '"test: this should work"'], {cwd});
 });
 
 test('should work with husky commitmsg hook in sub packages', async () => {
@@ -98,7 +98,7 @@ test('should work with husky commitmsg hook in sub packages', async () => {
 
 	await execa('npm', ['install'], {cwd});
 	await execa('git', ['add', 'package.json'], {cwd});
-	await execa('git', ['commit', '-m', '"chore: this should work"'], {cwd});
+	await execa('git', ['commit', '-m', '"test: this should work"'], {cwd});
 });
 
 test('should pick up parser preset and fail accordingly', async t => {

@commitlint/config-angular-type-enum/README.md

@@ -0,0 +1,41 @@
+# @commitlint/config-angular-type-enum
+
+Shareable `commitlint` config enforcing the angular commit convention types.
+Use with [@commitlint/cli](../cli) and [@commitlint/prompt-cli](../prompt-cli).
+
+See [@commitlint/config-angular](../config-angular) for full angular conventions.
+
+## Getting started
+
+```sh
+npm install --save-dev @commitlint/config-angular-types @commitlint/cli
+echo "module.exports = {extends: ['@commitlint/config-angular-type-enum']};" > commitlint.config.js
+```
+
+## Usage
+
+```sh
+echo "foo: bar" | commitlint # fails
+echo "build: bar" | commitlint # passes
+```
+
+## Examples
+
+```js
+// commitlint.config.js
+const types = require("@commitlint/config-angular-type-enum");
+
+// Use as rule creating errors for non-allowed types
+module.exports = {
+  rules: {
+    ...types.rules
+  }
+};
+
+// Warn for non-allowed types
+module.exports = {
+  rules: {
+    'type-enum': [1, 'always', types.values()]
+  }
+};
+```

@commitlint/config-angular-type-enum/index.js

@@ -0,0 +1,18 @@
+const types = [
+	'build',
+	'ci',
+	'docs',
+	'feat',
+	'fix',
+	'perf',
+	'refactor',
+	'revert',
+	'style',
+	'test'
+];
+
+module.exports.rules = {
+	'type-enum': [2, 'always', types]
+};
+
+module.exports.value = () => types;

@commitlint/config-angular-type-enum/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "@commitlint/config-angular-type-enum",
+  "version": "4.3.0",
+  "description": "Shareable commitlint config enforcing the angular commit convention types",
+  "scripts": {
+    "clean": "exit 0",
+    "pretest": "dep-check",
+    "start": "exit 0",
+    "test": "exit 0"
+  },
+  "xo": false,
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/marionebl/commitlint.git"
+  },
+  "keywords": [
+    "conventional-changelog",
+    "commitlint",
+    "commitlint-config",
+    "angular"
+  ],
+  "author": "Mario Nebl <[email protected]>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/marionebl/commitlint/issues"
+  },
+  "homepage": "https://github.com/marionebl/commitlint#readme",
+  "devDependencies": {
+    "@commitlint/utils": "^4.2.1"
+  }
+}

@commitlint/config-angular/README.md

@@ -27,7 +27,6 @@ Consult [docs/rules](http://marionebl.github.io/commitlint/#/reference-rules) fo
   ```js
   [
     'build',
-    'chore',
     'ci',
     'docs',
     'feat',
@@ -40,6 +39,11 @@ Consult [docs/rules](http://marionebl.github.io/commitlint/#/reference-rules) fo
 	]
   ```
 
+```sh
+echo "foo: some message" # fails
+echo "fix: some message" # passes
+```
+
 #### type-case
 * **description**: `type` is in case `value`
 * **rule**: `always`
@@ -48,21 +52,54 @@ Consult [docs/rules](http://marionebl.github.io/commitlint/#/reference-rules) fo
     'lowerCase'
   ```
 
+```sh
+echo "FIX: some message" # fails
+echo "fix: some message" # passes
+```
+
 #### type-empty
 * **condition**: `type` is empty
 * **rule**: `never`
 
+```sh
+echo ": some message" # fails
+echo "fix: some message" # passes
+```
+
 #### scope-case
 * **condition**: `scope` is in case `value`
 * **rule**: `always`
 ```js
   'lowerCase'
 ```
 
+```sh
+echo "fix(SCOPE): some message" # fails
+echo "fix(scope): some message" # passes
+```
+
+#### subject-case
+* **condition**: `subject` is in one of the cases `['sentence-case', 'start-case', 'pascal-case', 'upper-case']`
+* **rule**: `never`
+
+```sh
+echo "fix(SCOPE): Some message" # fails
+echo "fix(SCOPE): Some Message" # fails
+echo "fix(SCOPE): SomeMessage" # fails
+echo "fix(SCOPE): SOMEMESSAGE" # fails
+echo "fix(scope): some message" # passes
+echo "fix(scope): some Message" # passes
+```
+
 #### subject-empty
 * **condition**: `subject` is empty
 * **rule**: `never`
 
+```sh
+echo "fix:" # fails
+echo "fix: some message" # passes
+```
+
 #### subject-full-stop
 * **condition**: `subject` ends with `value`
 * **rule**: `never`
@@ -71,6 +108,12 @@ Consult [docs/rules](http://marionebl.github.io/commitlint/#/reference-rules) fo
   '.'
 ```
 
+```sh
+echo "fix: some message." # fails
+echo "fix: some message" # passes
+```
+
+
 #### header-max-length
 * **condition**: `header` has `value` or less characters
 * **rule**: `always`
@@ -79,17 +122,14 @@ Consult [docs/rules](http://marionebl.github.io/commitlint/#/reference-rules) fo
   72
 ```
 
+```sh
+echo "fix: some message that is way too long and breaks the line max-length by several characters" # fails
+echo "fix: some message" # passes
+```
+
 ### Warnings
 The following rules are considered warnings for `@commitlint/config-angular` and will print warning messages when not met.
 
 #### body-leading-blank
 * **condition**: Body begins with blank line
 * **rule**: `always`
-
-#### lang
-* **condition**: `subject` is of language `value`
-* **rule**: `always`
-* **value**
-```js
-  eng
-```

@commitlint/config-angular/index.js

@@ -1,29 +1,20 @@
+const typeEnum = require('@commitlint/config-angular-type-enum');
+
 module.exports = {
 	rules: {
 		'body-leading-blank': [1, 'always'],
 		'footer-leading-blank': [1, 'always'],
 		'header-max-length': [2, 'always', 72],
-		'scope-case': [2, 'always', 'lowerCase'],
+		'scope-case': [2, 'always', 'lower-case'],
+		'subject-case': [
+			2,
+			'never',
+			['sentence-case', 'start-case', 'pascal-case', 'upper-case']
+		],
 		'subject-empty': [2, 'never'],
 		'subject-full-stop': [2, 'never', '.'],
-		'type-case': [2, 'always', 'lowerCase'],
+		'type-case': [2, 'always', 'lower-case'],
 		'type-empty': [2, 'never'],
-		'type-enum': [
-			2,
-			'always',
-			[
-				'build',
-				'chore',
-				'ci',
-				'docs',
-				'feat',
-				'fix',
-				'perf',
-				'refactor',
-				'revert',
-				'style',
-				'test'
-			]
-		]
+		'type-enum': typeEnum.rules['type-enum']
 	}
 };

@commitlint/config-angular/package.json

@@ -27,5 +27,8 @@
   "homepage": "https://github.com/marionebl/commitlint#readme",
   "devDependencies": {
     "@commitlint/utils": "^4.2.1"
+  },
+  "dependencies": {
+    "@commitlint/config-angular-type-enum": "^4.3.0"
   }
 }

@commitlint/config-lerna-scopes/readme.md

@@ -26,17 +26,17 @@ packages
 ├── app
 └── web
 
-❯ echo "chore(api): fix something in api's build" | commitlint
-⧗   input: chore(api): fix something in api's build
+❯ echo "buid(api): change something in api's build" | commitlint
+⧗   input: build(api): change something in api's build
 ✔   found 0 problems, 0 warnings
 
-❯ echo "chore(foo): this won't pass" | commitlint
-⧗   input: chore(foo): this won't pass
+❯ echo "test(foo): this won't pass" | commitlint
+⧗   input: test(foo): this won't pass
 ✖   scope must be one of [api, app, web] [scope-enum]
 ✖   found 1 problems, 0 warnings
 
-❯ echo "chore: do some general maintenance" | commitlint
-⧗   input: chore: do some general maintenance
+❯ echo "ci: do some general maintenance" | commitlint
+⧗   input: ci: do some general maintenance
 ✔   found 0 problems, 0 warnings
 ```
 

@commitlint/core/fixtures/overridden-type-enums/extended.js

@@ -5,7 +5,6 @@ module.exports = {
 			'always',
 			[
 				'build',
-				'chore',
 				'ci',
 				'docs',
 				'feat',

@commitlint/core/src/rules/body-case.test.js

@@ -3,10 +3,10 @@ import parse from '../library/parse';
 import bodyCase from './body-case';
 
 const messages = {
-	empty: 'chore: subject',
-	lowercase: 'chore: subject\nbody',
-	mixedcase: 'chore: subject\nBody',
-	uppercase: 'chore: subject\nBODY'
+	empty: 'test: subject',
+	lowercase: 'test: subject\nbody',
+	mixedcase: 'test: subject\nBody',
+	uppercase: 'test: subject\nBODY'
 };
 
 const parsed = {

@commitlint/core/src/rules/body-empty.test.js

@@ -3,8 +3,8 @@ import parse from '../library/parse';
 import bodyEmpty from './body-empty';
 
 const messages = {
-	empty: 'chore: subject',
-	filled: 'chore: subject\nbody'
+	empty: 'test: subject',
+	filled: 'test: subject\nbody'
 };
 
 const parsed = {

@commitlint/core/src/rules/body-leading-blank.test.js

@@ -3,9 +3,9 @@ import parse from '../library/parse';
 import bodyLeadingBlank from './body-leading-blank';
 
 const messages = {
-	simple: 'chore: subject',
-	without: 'chore: subject\nbody',
-	with: 'chore: subject\n\nbody'
+	simple: 'test: subject',
+	without: 'test: subject\nbody',
+	with: 'test: subject\n\nbody'
 };
 
 const parsed = {

@commitlint/core/src/rules/body-max-length.test.js

@@ -8,9 +8,9 @@ const long = 'ab';
 const value = short.length;
 
 const messages = {
-	empty: 'chore: subject',
-	short: `chore: subject\n${short}`,
-	long: `chore: subject\n${long}`
+	empty: 'test: subject',
+	short: `test: subject\n${short}`,
+	long: `test: subject\n${long}`
 };
 
 const parsed = {

@commitlint/core/src/rules/body-min-length.test.js

@@ -8,9 +8,9 @@ const long = 'ab';
 const value = long.length;
 
 const messages = {
-	simple: 'chore: subject',
-	short: `chore: subject\n${short}`,
-	long: `chore: subject\n${long}`
+	simple: 'test: subject',
+	short: `test: subject\n${short}`,
+	long: `test: subject\n${long}`
 };
 
 const parsed = {

@commitlint/core/src/rules/body-tense.test.js

@@ -3,7 +3,7 @@ import parse from '../library/parse';
 import bodyTense from './body-tense';
 
 test('returns deprecation warning', async t => {
-	const actual = bodyTense(await parse('chore: \n'), 'always', [
+	const actual = bodyTense(await parse('test: \n'), 'always', [
 		'present-imperative'
 	]);
 	t.deepEqual(actual, [

@commitlint/core/src/rules/footer-empty.test.js

@@ -3,9 +3,9 @@ import parse from '../library/parse';
 import footerEmpty from './footer-empty';
 
 const messages = {
-	simple: 'chore: subject',
-	empty: 'chore: subject\nbody',
-	filled: 'chore: subject\nBREAKING CHANGE: something important'
+	simple: 'test: subject',
+	empty: 'test: subject\nbody',
+	filled: 'test: subject\nBREAKING CHANGE: something important'
 };
 
 const parsed = {