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index.js
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index.js
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'use strict'
const dedent = require('dedent')
const cosmiconfig = require('cosmiconfig')
const stringifyObject = require('stringify-object')
const { getConfig, validateConfig } = require('./getConfig')
const printErrors = require('./printErrors')
const runAll = require('./runAll')
const debug = require('debug')('lint-staged')
// Force colors for packages that depend on https://www.npmjs.com/package/supports-color
// but do this only in TTY mode
if (process.stdout.isTTY) {
// istanbul ignore next
process.env.FORCE_COLOR = '1'
}
const errConfigNotFound = new Error('Config could not be found')
function loadConfig(configPath) {
const explorer = cosmiconfig('lint-staged', {
searchPlaces: [
'package.json',
`.lintstagedrc`,
`.lintstagedrc.json`,
`.lintstagedrc.yaml`,
`.lintstagedrc.yml`,
`.lintstagedrc.js`,
`lint-staged.config.js`
]
})
return configPath ? explorer.load(configPath) : explorer.search()
}
/**
* Root lint-staged function that is called from .bin
*/
module.exports = function lintStaged(logger = console, configPath, debugMode) {
debug('Loading config using `cosmiconfig`')
return loadConfig(configPath)
.then(result => {
if (result == null) throw errConfigNotFound
debug('Successfully loaded config from `%s`:\n%O', result.filepath, result.config)
// result.config is the parsed configuration object
// result.filepath is the path to the config file that was found
const config = validateConfig(getConfig(result.config, debugMode))
if (debugMode) {
// Log using logger to be able to test through `consolemock`.
logger.log('Running lint-staged with the following config:')
logger.log(stringifyObject(config, { indent: ' ' }))
} else {
// We might not be in debug mode but `DEBUG=lint-staged*` could have
// been set.
debug('Normalized config:\n%O', config)
}
runAll(config)
.then(() => {
debug('linters were executed successfully!')
// No errors, exiting with 0
})
.catch(error => {
// Errors detected, printing and exiting with non-zero
process.exitCode = 1
printErrors(error)
})
})
.catch(err => {
process.exitCode = 1
if (err === errConfigNotFound) {
logger.error(`${err.message}.`)
} else {
// It was probably a parsing error
logger.error(dedent`
Could not parse lint-staged config.
${err}
`)
}
logger.error() // empty line
// Print helpful message for all errors
logger.error(dedent`
Please make sure you have created it correctly.
See https://github.com/okonet/lint-staged#configuration.
`)
})
}