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const log = require('npmlog')
const fs = require('fs')
const parseJSON = require('json-parse-even-better-errors')
const rpj = require('read-package-json-fast')
const { resolve } = require('path')
const getWorkspaces = require('./workspaces/get-workspaces.js')
const BaseCommand = require('./base-command.js')
class SetScript extends BaseCommand {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get description () {
return 'Set tasks in the scripts section of package.json'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get params () {
return ['workspace', 'workspaces']
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get name () {
return 'set-script'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get usage () {
return ['[<script>] [<command>]']
}
async completion (opts) {
const argv = opts.conf.argv.remain
if (argv.length === 2) {
// find the script name
const json = resolve(this.npm.localPrefix, 'package.json')
const { scripts = {} } = await rpj(json).catch(er => ({}))
return Object.keys(scripts)
}
}
validate (args) {
if (process.env.npm_lifecycle_event === 'postinstall')
throw new Error('Scripts can’t set from the postinstall script')
// Parse arguments
if (args.length !== 2)
throw new Error(`Expected 2 arguments: got ${args.length}`)
}
exec (args, cb) {
this.set(args).then(() => cb()).catch(cb)
}
async set (args) {
this.validate(args)
const warn = this.setScript(this.npm.localPrefix, args[0], args[1])
if (warn)
log.warn('set-script', `Script "${args[0]}" was overwritten`)
}
execWorkspaces (args, filters, cb) {
this.setWorkspaces(args, filters).then(() => cb()).catch(cb)
}
async setWorkspaces (args, filters) {
this.validate(args)
const workspaces =
await getWorkspaces(filters, { path: this.npm.localPrefix })
for (const [name, path] of workspaces) {
try {
const warn = this.setScript(path, args[0], args[1])
if (warn) {
log.warn('set-script', `Script "${args[0]}" was overwritten`)
log.warn(` in workspace: ${name}`)
log.warn(` at location: ${path}`)
}
} catch (err) {
log.error('set-script', err.message)
log.error(` in workspace: ${name}`)
log.error(` at location: ${path}`)
process.exitCode = 1
}
}
}
// returns a Boolean that will be true if
// the requested script was overwritten
// and false if it was set as a new script
setScript (path, name, value) {
// Set the script
let manifest
let warn = false
try {
manifest = fs.readFileSync(resolve(path, 'package.json'), 'utf-8')
} catch (error) {
throw new Error('package.json not found')
}
try {
manifest = parseJSON(manifest)
} catch (error) {
throw new Error(`Invalid package.json: ${error}`)
}
if (!manifest.scripts)
manifest.scripts = {}
if (manifest.scripts[name] && manifest.scripts[name] !== value)
warn = true
manifest.scripts[name] = value
// format content
const {
[Symbol.for('indent')]: indent,
[Symbol.for('newline')]: newline,
} = manifest
const content = (JSON.stringify(manifest, null, indent) + '\n')
.replace(/\n/g, newline)
fs.writeFileSync(resolve(path, 'package.json'), content)
return warn
}
}
module.exports = SetScript
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