feat: commit conventions awareness (#159)

* feat: commit convention awareness [wip]

fix https://github.com/all-contributors/all-contributors-bot/issues/132

* refactor(commit-conventions): added a tranformer for `angular` and refactored `none`

* feat(git): added lowercase transformation

With some refactoring

src/init/commit-conventions.js

@@ -0,0 +1,39 @@
+const conventions = {
+  angular: {
+    name: 'Angular',
+    msg: 'docs:',
+    lowercase: true,
+    transform(msg) {
+      return msg.replace(
+        /(^.*?) ([A-Z][a-z]+) \w*/,
+        (_, ...words) => `${words[0]} ${words[1].toLowerCase()} `,
+      )
+    },
+  },
+  atom: {
+    name: 'Atom',
+    msg: ':memo:',
+  },
+  ember: {
+    name: 'Ember',
+    msg: '[DOC canary]',
+  },
+  eslint: {
+    name: 'ESLint',
+    msg: 'Docs:',
+  },
+  jshint: {
+    name: 'JSHint',
+    msg: '[[DOCS]]',
+  },
+  none: {
+    name: 'None',
+    msg: '',
+  },
+}
+
+Object.keys(conventions).forEach(style => {
+  conventions[style].value = style
+})
+
+module.exports = conventions

src/init/prompt.js

@@ -1,6 +1,7 @@
 const _ = require('lodash/fp')
 const inquirer = require('inquirer')
 const git = require('../util').git
+const conventions = require('./commit-conventions')
 
 const questions = [
   {
@@ -32,7 +33,8 @@ const questions = [
   {
     type: 'input',
     name: 'repoHost',
-    message: 'Where is the repository hosted? Hit Enter if it\'s on GitHub or GitLab',
+    message:
+      "Where is the repository hosted? Hit Enter if it's on GitHub or GitLab",
     default: function(answers) {
       if (answers.repoType === 'github') {
         return 'https://github.com'
@@ -77,9 +79,19 @@ const questions = [
       'Do you want this badge to auto-commit when contributors are added?',
     default: true,
   },
+  {
+    type: 'list',
+    name: 'commitConvention',
+    message: 'What commit convention would you want it to use?',
+    choices: Object.values(conventions),
+    default: 'none',
+  },
 ]
 
-const uniqueFiles = _.flow(_.compact, _.uniq)
+const uniqueFiles = _.flow(
+  _.compact,
+  _.uniq,
+)
 
 module.exports = function prompt() {
   return git
@@ -101,6 +113,7 @@ module.exports = function prompt() {
           files: uniqueFiles([answers.contributorFile, answers.badgeFile]),
           imageSize: answers.imageSize,
           commit: answers.commit,
+          commitConvention: answers.commitConvention,
           contributors: [],
           contributorsPerLine: 7,
         },

src/util/git.js

@@ -2,9 +2,11 @@ const path = require('path')
 const spawn = require('child_process').spawn
 const _ = require('lodash/fp')
 const pify = require('pify')
+const conventions = require('../init/commit-conventions')
+const {readConfig} = require('./config-file')
 
 const commitTemplate =
-  '<%= (newContributor ? "Add" : "Update") %> @<%= username %> as a contributor'
+  '<%= prefix %> <%= (newContributor ? "Add" : "Update") %> @<%= username %> as a contributor'
 
 const getRemoteOriginData = pify(cb => {
   let output = ''
@@ -37,16 +39,18 @@ function getRepoInfo() {
 
 const spawnGitCommand = pify((args, cb) => {
   const git = spawn('git', args)
-  const bufs = [];
-  git.stderr.on('data', (buf) => bufs.push(buf));
-  git.on('close', (code) => {
+  const bufs = []
+  git.stderr.on('data', buf => bufs.push(buf))
+  git.on('close', code => {
     if (code) {
-      const msg = Buffer.concat(bufs).toString() || `git ${args.join(' ')} - exit code: ${code}`;
-      cb(new Error(msg));
+      const msg =
+        Buffer.concat(bufs).toString() ||
+        `git ${args.join(' ')} - exit code: ${code}`
+      cb(new Error(msg))
     } else {
-      cb(null);
+      cb(null)
     }
-  });
+  })
 })
 
 function commit(options, data) {
@@ -54,10 +58,16 @@ function commit(options, data) {
   const absolutePathFiles = files.map(file => {
     return path.resolve(process.cwd(), file)
   })
+  const config = readConfig(options.config)
+  const commitConvention = conventions[config.commitConvention]
+
   return spawnGitCommand(['add'].concat(absolutePathFiles)).then(() => {
-    const commitMessage = _.template(options.commitTemplate || commitTemplate)(
-      data,
-    )
+    let commitMessage = _.template(options.commitTemplate || commitTemplate)({
+      ...data,
+      prefix: commitConvention.msg,
+    })
+    if (commitConvention.lowercase)
+      commitMessage = commitConvention.transform(commitMessage)
     return spawnGitCommand(['commit', '-m', commitMessage])
   })
 }