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'use strict'
var validate = require('aproba')
var chain = require('slide').chain
var asyncMap = require('slide').asyncMap
var limit = require('call-limit')
var iferr = require('iferr')
var npm = require('../npm.js')
var andFinishTracker = require('./and-finish-tracker.js')
var andAddParentToErrors = require('./and-add-parent-to-errors.js')
var failedDependency = require('./deps.js').failedDependency
var moduleName = require('../utils/module-name.js')
var reportOptionalFailure = require('./report-optional-failure.js')
var isInstallable = require('./validate-args.js').isInstallable
var actions = {}
actions.fetch = require('./action/fetch.js')
actions.extract = require('./action/extract.js')
actions.build = require('./action/build.js')
actions.preinstall = require('./action/preinstall.js')
actions.install = require('./action/install.js')
actions.postinstall = require('./action/postinstall.js')
actions.prepare = require('./action/prepare.js')
actions.finalize = require('./action/finalize.js')
actions.remove = require('./action/remove.js')
actions.move = require('./action/move.js')
actions['global-install'] = require('./action/global-install.js')
actions['global-link'] = require('./action/global-link.js')
actions['refresh-package-json'] = require('./action/refresh-package-json.js')
// FIXME: We wrap actions like three ways to sunday here.
// Rewrite this to only work one way.
Object.keys(actions).forEach(function (actionName) {
var action = actions[actionName]
actions[actionName] = limit(function (staging, pkg, log, next) {
// top, buildpath, pkg, log
validate('SOOF', arguments)
// refuse to run actions for failed packages
if (pkg.failed) return next()
if (action.rollback) {
if (!pkg.rollback) pkg.rollback = []
pkg.rollback.unshift(action.rollback)
}
if (action.commit) {
if (!pkg.commit) pkg.commit = []
pkg.commit.push(action.commit)
}
if (pkg.knownInstallable) {
return thenRunAction()
} else {
return isInstallable(pkg.package, iferr(andDone(next), andMarkInstallable(thenRunAction)))
}
function andMarkInstallable (cb) {
return function () {
pkg.knownInstallable = true
cb()
}
}
function thenRunAction () {
var done = andDone(next)
var result = action(staging, pkg, log, done)
if (result && result.then) result.then(() => done(), done)
}
function andDone (cb) {
return andFinishTracker(log, andAddParentToErrors(pkg.parent, andHandleOptionalDepErrors(pkg, cb)))
}
}, npm.limit.action)
})
function markAsFailed (pkg) {
pkg.failed = true
pkg.requires.forEach(function (req) {
req.requiredBy = req.requiredBy.filter(function (reqReqBy) { return reqReqBy !== pkg })
if (req.requiredBy.length === 0 && !req.userRequired) {
markAsFailed(req)
}
})
}
function andHandleOptionalDepErrors (pkg, next) {
return function (er) {
if (!er) return next.apply(null, arguments)
markAsFailed(pkg)
var anyFatal = pkg.userRequired || pkg.isTop
for (var ii = 0; ii < pkg.requiredBy.length; ++ii) {
var parent = pkg.requiredBy[ii]
var isFatal = failedDependency(parent, pkg)
if (isFatal) anyFatal = true
}
if (anyFatal) return next.apply(null, arguments)
reportOptionalFailure(pkg, null, er)
next()
}
}
function prepareAction (staging, log) {
validate('SO', arguments)
return function (action) {
validate('SO', action)
var cmd = action[0]
var pkg = action[1]
if (!actions[cmd]) throw new Error('Unknown decomposed command "' + cmd + '" (is it new?)')
return [actions[cmd], staging, pkg, log.newGroup(cmd + ':' + moduleName(pkg))]
}
}
exports.actions = actions
function execAction (todo, done) {
validate('AF', arguments)
var cmd = todo.shift()
todo.push(done)
cmd.apply(null, todo)
}
exports.doOne = function (cmd, staging, pkg, log, next) {
validate('SSOOF', arguments)
execAction(prepareAction(staging, log)([cmd, pkg]), next)
}
function time (log) {
process.emit('time', 'action:' + log.name)
}
function timeEnd (log) {
process.emit('timeEnd', 'action:' + log.name)
}
exports.doSerial = function (type, staging, actionsToRun, log, next) {
validate('SSAOF', arguments)
actionsToRun = actionsToRun
.filter(function (value) { return value[0] === type })
log.silly('doSerial', '%s %d', type, actionsToRun.length)
time(log)
chain(actionsToRun.map(prepareAction(staging, log)), andFinishTracker(log, function () {
timeEnd(log)
next.apply(null, arguments)
}))
}
exports.doReverseSerial = function (type, staging, actionsToRun, log, next) {
validate('SSAOF', arguments)
actionsToRun = actionsToRun
.filter(function (value) { return value[0] === type })
.reverse()
log.silly('doReverseSerial', '%s %d', type, actionsToRun.length)
time(log)
chain(actionsToRun.map(prepareAction(staging, log)), andFinishTracker(log, function () {
timeEnd(log)
next.apply(null, arguments)
}))
}
exports.doParallel = function (type, staging, actionsToRun, log, next) {
validate('SSAOF', arguments)
actionsToRun = actionsToRun.filter(function (value) { return value[0] === type })
log.silly('doParallel', type + ' ' + actionsToRun.length)
time(log)
asyncMap(actionsToRun.map(prepareAction(staging, log)), execAction, andFinishTracker(log, function () {
timeEnd(log)
next.apply(null, arguments)
}))
}
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