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const libexec = require('libnpmexec')
const BaseCommand = require('./base-command.js')
const getLocationMsg = require('./exec/get-workspace-location-msg.js')
// it's like this:
//
// npm x pkg@version <-- runs the bin named "pkg" or the only bin if only 1
//
// { name: 'pkg', bin: { pkg: 'pkg.js', foo: 'foo.js' }} <-- run pkg
// { name: 'pkg', bin: { foo: 'foo.js' }} <-- run foo?
//
// npm x -p pkg@version -- foo
//
// npm x -p pkg@version -- foo --registry=/dev/null
//
// const pkg = npm.config.get('package') || getPackageFrom(args[0])
// const cmd = getCommand(pkg, args[0])
// --> npm x -c 'cmd ...args.slice(1)'
//
// we've resolved cmd and args, and escaped them properly, and installed the
// relevant packages.
//
// Add the ${npx install prefix}/node_modules/.bin to PATH
//
// pkg = readPackageJson('./package.json')
// pkg.scripts.___npx = ${the -c arg}
// runScript({ pkg, event: 'npx', ... })
// process.env.npm_lifecycle_event = 'npx'
class Exec extends BaseCommand {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get description () {
return 'Run a command from a local or remote npm package'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get params () {
return ['package', 'call', 'workspace', 'workspaces']
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get name () {
return 'exec'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get usage () {
return [
'-- <pkg>[@<version>] [args...]',
'--package=<pkg>[@<version>] -- <cmd> [args...]',
'-c \'<cmd> [args...]\'',
'--package=foo -c \'<cmd> [args...]\'',
]
}
exec (args, cb) {
const path = this.npm.localPrefix
const runPath = process.cwd()
this._exec(args, { path, runPath }).then(() => cb()).catch(cb)
}
execWorkspaces (args, filters, cb) {
this._execWorkspaces(args, filters).then(() => cb()).catch(cb)
}
// When commands go async and we can dump the boilerplate exec methods this
// can be named correctly
async _exec (_args, { locationMsg, path, runPath }) {
const args = [..._args]
const call = this.npm.config.get('call')
const {
flatOptions,
localBin,
log,
globalBin,
} = this.npm
const output = (...outputArgs) => this.npm.output(...outputArgs)
const scriptShell = this.npm.config.get('script-shell') || undefined
const packages = this.npm.config.get('package')
const yes = this.npm.config.get('yes')
if (call && _args.length)
throw this.usage
return libexec({
...flatOptions,
args,
call,
localBin,
locationMsg,
log,
globalBin,
output,
packages,
path,
runPath,
scriptShell,
yes,
})
}
async _execWorkspaces (args, filters) {
await this.setWorkspaces(filters)
const color = this.npm.color
for (const path of this.workspacePaths) {
const locationMsg = await getLocationMsg({ color, path })
await this._exec(args, {
locationMsg,
path,
runPath: path,
})
}
}
}
module.exports = Exec