Files
atom/src/directory.coffee
2013-08-27 10:17:00 -07:00

111 lines
2.9 KiB
CoffeeScript

_ = require 'underscore'
fs = require 'fs'
path = require 'path'
fsUtils = require 'fs-utils'
pathWatcher = require 'pathwatcher'
File = require 'file'
EventEmitter = require 'event-emitter'
# Public: Represents a directory using {File}s
module.exports =
class Directory
_.extend @prototype, EventEmitter
path: null
realPath: null
# Public: Configures an new Directory instance, no files are accessed.
#
# * path:
# A {String} representing the file directory
# + symlink:
# A {Boolean} indicating if the path is a symlink
constructor: (@path, @symlink=false) ->
# Public: Returns the basename of the directory.
getBaseName: ->
path.basename(@path)
# Public: Returns the directory's path.
#
# FIXME what is the difference between real path and path?
getPath: -> @path
# Public: Returns this directory's real path.
#
# FIXME what is the difference between real path and path?
getRealPath: ->
unless @realPath?
try
@realPath = fs.realpathSync(@path)
catch e
@realPath = @path
@realPath
# Public: Returns whether the given path is inside this directory.
contains: (pathToCheck) ->
return false unless pathToCheck
if pathToCheck.indexOf(path.join(@getPath(), path.sep)) is 0
true
else if pathToCheck.indexOf(path.join(@getRealPath(), path.sep)) is 0
true
else
false
# Public: Returns the relative path to the given path from this directory.
relativize: (fullPath) ->
return fullPath unless fullPath
if fullPath is @getPath()
''
else if fullPath.indexOf(path.join(@getPath(), path.sep)) is 0
fullPath.substring(@getPath().length + 1)
else if fullPath is @getRealPath()
''
else if fullPath.indexOf(path.join(@getRealPath(), path.sep)) is 0
fullPath.substring(@getRealPath().length + 1)
else
fullPath
# Public: Reads file entries in this directory from disk.
#
# Note: It follows symlinks.
#
# Returns an {Array} of {Files}.
getEntries: ->
directories = []
files = []
for entryPath in fsUtils.listSync(@path)
try
stat = fs.lstatSync(entryPath)
symlink = stat.isSymbolicLink()
stat = fs.statSync(entryPath) if symlink
catch e
continue
if stat.isDirectory()
directories.push(new Directory(entryPath, symlink))
else if stat.isFile()
files.push(new File(entryPath, symlink))
directories.concat(files)
# Private:
afterSubscribe: ->
@subscribeToNativeChangeEvents() if @subscriptionCount() == 1
# Private:
afterUnsubscribe: ->
@unsubscribeFromNativeChangeEvents() if @subscriptionCount() == 0
# Private:
subscribeToNativeChangeEvents: ->
@watchSubscription = pathWatcher.watch @path, (eventType) =>
@trigger "contents-changed" if eventType is "change"
# Private:
unsubscribeFromNativeChangeEvents: ->
if @watchSubscription?
@watchSubscription.close()
@watchSubscription = null