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181 lines (158 loc) · 4.83 KB
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const fs = require('fs')
const readPkg = require('read-pkg-up')
const truncate = require('cli-truncate')
const wrap = require('wrap-ansi')
const pad = require('pad')
const path = require('path')
const fuse = require('fuse.js')
const homeDir = require('home-dir')
const util = require('util')
const types = require('./lib/types')
const defaultConfig = {
types,
symbol: false,
skipQuestions: [''],
subjectMaxLength: 75
}
function getEmojiChoices({ types, symbol }) {
const maxNameLength = types.reduce(
(maxLength, type) => (type.name.length > maxLength ? type.name.length : maxLength),
0
)
return types.map(choice => ({
name: `${pad(choice.name, maxNameLength)} ${choice.emoji} ${choice.description}`,
value: symbol ? `${choice.emoji} ` : choice.code,
code: choice.code
}))
}
async function loadConfig() {
const getConfig = obj => obj && obj.config && obj.config['cz-emoji']
const readFromPkg = async () => readPkg().then(res => (res ? getConfig(res.packageJson) : null))
const readFromCzrc = dir =>
util
.promisify(fs.readFile)(dir, 'utf8')
.then(JSON.parse, () => null)
.then(getConfig)
const readFromLocalCzrc = () =>
readPkg().then(res =>
res && res.path ? readFromCzrc(`${path.dirname(res.path)}/.czrc`) : null
)
const readFromGlobalCzrc = () => readFromCzrc(homeDir('.czrc'))
const config =
(await readFromPkg()) || (await readFromLocalCzrc()) || (await readFromGlobalCzrc())
return { ...defaultConfig, ...config }
}
function formatScope(scope) {
return scope ? `(${scope})` : ''
}
function formatHead({ type, scope, subject }) {
return [type, formatScope(scope), subject]
.filter(Boolean)
.map(s => s.trim())
.join(' ')
}
function formatIssues(issues) {
return issues ? 'Closes ' + (issues.match(/#\d+/g) || []).join(', closes ') : ''
}
/**
* Create inquier.js questions object trying to read `types` and `scopes` from the current project
* `package.json` falling back to nice default :)
*
* @param {Object} config Result of the `loadConfig` returned promise
* @return {Array} Return an array of `inquier.js` questions
* @private
*/
function createQuestions(config) {
const choices = getEmojiChoices(config)
const fuzzy = new fuse(choices, {
shouldSort: true,
threshold: 0.4,
location: 0,
distance: 100,
maxPatternLength: 32,
minMatchCharLength: 1,
keys: ['name', 'code']
})
const questions = [
{
type: 'autocomplete',
name: 'type',
message:
config.questions && config.questions.type
? config.questions.type
: "Select the type of change you're committing:",
source: (answersSoFar, query) => {
return Promise.resolve(query ? fuzzy.search(query) : choices)
}
},
{
type: config.scopes ? 'list' : 'input',
name: 'scope',
message:
config.questions && config.questions.scope ? config.questions.scope : 'Specify a scope:',
choices: config.scopes && [{ name: '[none]', value: '' }].concat(config.scopes),
when: !config.skipQuestions.includes('scope')
},
{
type: 'maxlength-input',
name: 'subject',
message:
config.questions && config.questions.subject
? config.questions.subject
: 'Write a short description:',
maxLength: config.subjectMaxLength,
filter: (subject, answers) => formatHead({ ...answers, subject })
},
{
type: 'input',
name: 'body',
message:
config.questions && config.questions.body
? config.questions.body
: 'Provide a longer description:',
when: !config.skipQuestions.includes('body')
},
{
type: 'input',
name: 'issues',
message:
config.questions && config.questions.issues
? config.questions.issues
: 'List any issue closed (#1, #2, ...):',
when: !config.skipQuestions.includes('issues')
}
]
return questions
}
/**
* Format the git commit message from given answers.
*
* @param {Object} answers Answers provide by `inquier.js`
* @return {String} Formated git commit message
*/
function format(answers) {
const { columns } = process.stdout
const head = truncate(answers.subject, columns)
const body = wrap(answers.body || '', columns)
const footer = formatIssues(answers.issues)
return [head, body, footer]
.filter(Boolean)
.join('\n\n')
.trim()
}
/**
* Export an object containing a `prompter` method. This object is used by `commitizen`.
*
* @type {Object}
*/
module.exports = {
prompter: function(cz, commit) {
cz.prompt.registerPrompt('autocomplete', require('inquirer-autocomplete-prompt'))
cz.prompt.registerPrompt('maxlength-input', require('inquirer-maxlength-input-prompt'))
loadConfig()
.then(createQuestions)
.then(cz.prompt)
.then(format)
.then(commit)
}
}