docs » hs.pathwatcher

Watch paths recursively for changes

This simple example watches your Hammerspoon directory for changes, and when it sees a change, reloads your configs:

local myWatcher = hs.pathwatcher.new(os.getenv("HOME") .. "/.hammerspoon/", hs.reload):start()

This module is based primarily on code from the previous incarnation of Mjolnir by Steven Degutis.

API Overview

API Documentation

Constructors

new
Signature hs.pathwatcher.new(path, fn) -> watcher
Type Constructor
Description

Creates a new path watcher object
Parameters
  • path - A string containing the path to be watched
  • fn - A function to be called when changes are detected. It should accept two arguments:
    • paths: a table containing a list of file paths that have changed
    • flagTables: a table containing a list of tables denoting how each corresponding file in paths has changed, each containing boolean values indicating which types of events occurred; The possible keys are: * mustScanSubDirs * userDropped * kernelDropped * eventIdsWrapped * historyDone * rootChanged * mount * unmount * itemCreated * itemRemoved * itemInodeMetaMod * itemRenamed * itemModified * itemFinderInfoMod * itemChangeOwner * itemXattrMod * itemIsFile * itemIsDir * itemIsSymlink * ownEvent (OS X 10.9+) * itemIsHardlink (OS X 10.10+) * itemIsLastHardlink (OS X 10.10+)
Returns
  • An hs.pathwatcher object
Notes
Source extensions/pathwatcher/libpathwatcher.m line 83

Methods

start
Signature hs.pathwatcher:start()
Type Method
Description

Starts a path watcher
Parameters
  • None
Returns
  • The hs.pathwatcher object
Source extensions/pathwatcher/libpathwatcher.m line 153
stop
Signature hs.pathwatcher:stop()
Type Method
Description

Stops a path watcher
Parameters
  • None
Returns
  • None
Source extensions/pathwatcher/libpathwatcher.m line 175