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var test = require('tap').test
var path = require('path')
var fs = require('graceful-fs')
var crypto = require('crypto')
var rimraf = require('rimraf')
var osenv = require('osenv')
var mkdirp = require('mkdirp')
var npm = require('../../')
var locker = require('../../lib/utils/locker.js')
var lock = locker.lock
var unlock = locker.unlock
const common = require('../common-tap.js')
var pkg = common.pkg
var cache = path.join(pkg, '/cache')
var tmp = path.join(pkg, '/tmp')
var nm = path.join(pkg, '/node_modules')
function cleanup () {
process.chdir(osenv.tmpdir())
rimraf.sync(pkg)
}
test('setup', function (t) {
cleanup()
mkdirp.sync(cache)
mkdirp.sync(tmp)
t.end()
})
test('locking file puts lock in correct place', function (t) {
npm.load({cache: cache, tmpdir: tmp}, function (er) {
t.ifError(er, 'npm bootstrapped OK')
var n = 'correct'
var c = n.replace(/[^a-zA-Z0-9]+/g, '-').replace(/^-+|-+$/g, '')
var p = path.resolve(nm, n)
var h = crypto.createHash('sha1').update(p).digest('hex')
var l = c.substr(0, 24) + '-' + h.substr(0, 16) + '.lock'
var v = path.join(cache, '_locks', l)
lock(nm, n, function (er) {
t.ifError(er, 'locked path')
fs.exists(v, function (found) {
t.ok(found, 'lock found OK')
unlock(nm, n, function (er) {
t.ifError(er, 'unlocked path')
fs.exists(v, function (found) {
t.notOk(found, 'lock deleted OK')
t.end()
})
})
})
})
})
})
test('unlocking out of order errors out', function (t) {
npm.load({cache: cache, tmpdir: tmp}, function (er) {
t.ifError(er, 'npm bootstrapped OK')
var n = 'busted'
var c = n.replace(/[^a-zA-Z0-9]+/g, '-').replace(/^-+|-+$/g, '')
var p = path.resolve(nm, n)
var h = crypto.createHash('sha1').update(p).digest('hex')
var l = c.substr(0, 24) + '-' + h.substr(0, 16) + '.lock'
var v = path.join(cache, '_locks', l)
fs.exists(v, function (found) {
t.notOk(found, 'no lock to unlock')
t.throws(function () {
unlock(nm, n, function () {
t.fail("shouldn't get here")
t.end()
})
}, 'blew up as expected')
t.end()
})
})
})
test('cleanup', function (t) {
cleanup()
t.end()
})
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