xen-orchestra/scripts/lint-staged
2018-12-03 14:54:41 +01:00

83 lines
2.1 KiB
JavaScript
Executable File

#!/usr/bin/env node
const formatFiles = files => {
run('./node_modules/.bin/prettier', ['--write'].concat(files))
}
const testFiles = files => {
run(
'./node_modules/.bin/eslint',
['--ignore-pattern', '!*'].concat(files)
)
run(
'./node_modules/.bin/jest',
[
'--testRegex=^(?!.*.integ.spec.js$).*.spec.js$',
'--findRelatedTests',
'--passWithNoTests',
].concat(files)
)
}
// -----------------------------------------------------------------------------
const { execFileSync, spawnSync } = require('child_process')
const { readFileSync, writeFileSync } = require('fs')
const run = (command, args) => {
const { status } = spawnSync(command, args, { stdio: 'inherit' })
if (status !== 0) {
process.exit(status)
}
}
const gitDiff = (what, args = []) =>
execFileSync(
'git',
[
'diff-' + what,
'--diff-filter=AM',
'--ignore-submodules',
'--name-only',
].concat(args),
{ encoding: 'utf8' }
)
.split('\n')
.filter(_ => _ !== '')
const gitDiffFiles = (files = []) => gitDiff('files', files)
const gitDiffIndex = () => gitDiff('index', ['--cached', 'HEAD'])
// -----------------------------------------------------------------------------
const files = gitDiffIndex().filter(_ => _.endsWith('.js'))
if (files.length === 0) {
return
}
// save the list of files with unstaged changes
let unstaged = gitDiffFiles(files)
// format all files
formatFiles(files)
if (unstaged.length !== 0) {
// refresh the list of files with unstaged changes, maybe the
// changes have been reverted by the formatting
run('git', ['update-index', '-q', '--refresh'])
unstaged = gitDiffFiles(unstaged)
if (unstaged.length !== 0) {
const contents = unstaged.map(name => readFileSync(name))
process.on('exit', () =>
unstaged.map((name, i) => writeFileSync(name, contents[i]))
)
run('git', ['checkout'].concat(unstaged))
formatFiles(unstaged)
}
}
// add formatting changes so that even if the test fails, there won't be
// stylistic diffs between files and index
run('git', ['add'].concat(files))
testFiles(files)