Files
atom/src/package-manager.coffee
2013-10-14 17:28:26 -07:00

135 lines
3.9 KiB
CoffeeScript

{Emitter} = require 'emissary'
fsUtils = require './fs-utils'
_ = require './underscore-extensions'
Package = require './package'
path = require 'path'
module.exports =
class PackageManager
_.extend @prototype, Emitter
constructor: ({configDirPath, devMode, @resourcePath}) ->
@packageDirPaths = [path.join(configDirPath, "packages")]
if devMode
@packageDirPaths.unshift(path.join(configDirPath, "dev", "packages"))
@loadedPackages = {}
@activePackages = {}
@packageStates = {}
getPackageState: (name) ->
@packageStates[name]
setPackageState: (name, state) ->
@packageStates[name] = state
activatePackages: ->
@activatePackage(pack.name) for pack in @getLoadedPackages()
activatePackage: (name, options) ->
if pack = @loadPackage(name, options)
@activePackages[pack.name] = pack
pack.activate(options)
pack
deactivatePackages: ->
@deactivatePackage(pack.name) for pack in @getActivePackages()
deactivatePackage: (name) ->
if pack = @getActivePackage(name)
@setPackageState(pack.name, state) if state = pack.serialize?()
pack.deactivate()
delete @activePackages[pack.name]
else
throw new Error("No active package for name '#{name}'")
getActivePackage: (name) ->
@activePackages[name]
isPackageActive: (name) ->
@getActivePackage(name)?
getActivePackages: ->
_.values(@activePackages)
loadPackages: ->
# Ensure atom exports is already in the require cache so the load time
# of the first package isn't skewed by being the first to require atom
require '../exports/atom'
@loadPackage(name) for name in @getAvailablePackageNames() when not @isPackageDisabled(name)
@emit 'loaded'
loadPackage: (name, options) ->
if @isPackageDisabled(name)
return console.warn("Tried to load disabled package '#{name}'")
if packagePath = @resolvePackagePath(name)
return pack if pack = @getLoadedPackage(name)
pack = Package.load(packagePath, options)
if pack.metadata?.theme
atom.themes.register(pack)
else
@loadedPackages[pack.name] = pack
pack
else
throw new Error("Could not resolve '#{name}' to a package path")
unloadPackage: (name) ->
if @isPackageActive(name)
throw new Error("Tried to unload active package '#{name}'")
if pack = @getLoadedPackage(name)
delete @loadedPackages[pack.name]
else
throw new Error("No loaded package for name '#{name}'")
resolvePackagePath: (name) ->
return name if fsUtils.isDirectorySync(name)
packagePath = fsUtils.resolve(@packageDirPaths..., name)
return packagePath if fsUtils.isDirectorySync(packagePath)
packagePath = path.join(@resourcePath, 'node_modules', name)
return packagePath if @isInternalPackage(packagePath)
isInternalPackage: (packagePath) ->
{engines} = Package.loadMetadata(packagePath, true)
engines?.atom?
getLoadedPackage: (name) ->
@loadedPackages[name]
isPackageLoaded: (name) ->
@getLoadedPackage(name)?
getLoadedPackages: ->
_.values(@loadedPackages)
isPackageDisabled: (name) ->
_.include(config.get('core.disabledPackages') ? [], name)
getAvailablePackagePaths: ->
packagePaths = []
for packageDirPath in @packageDirPaths
for packagePath in fsUtils.listSync(packageDirPath)
packagePaths.push(packagePath) if fsUtils.isDirectorySync(packagePath)
for packagePath in fsUtils.listSync(path.join(@resourcePath, 'node_modules'))
packagePaths.push(packagePath) if @isInternalPackage(packagePath)
_.uniq(packagePaths)
getAvailablePackageNames: ->
_.uniq _.map @getAvailablePackagePaths(), (packagePath) -> path.basename(packagePath)
getAvailablePackageMetadata: ->
packages = []
for packagePath in @getAvailablePackagePaths()
name = path.basename(packagePath)
metadata = @getLoadedPackage(name)?.metadata ? Package.loadMetadata(packagePath, true)
packages.push(metadata)
packages