pathwatcher

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Watch paths recursively for changes
This simple example watches your Hammerspoon directory for changes, and when it sees a change, reloads your configs:
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local myWatcher = hs.pathwatcher.new(os.getenv("HOME") .. "/.hammerspoon/", hs.reload):start()
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This module is based primarily on code from the previous incarnation of Mjolnir by Steven Degutis.
API Overview
Constructors - API calls which return an object, typically one that offers API methods
​new​
Methods - API calls which can only be made on an object returned by a constructor
​start​
​stop​
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
For more information about the event flags, see the official documentation​
Methods
​start​
Signature
hs.pathwatcher:start()
Type
Method
Description
Starts a path watcher
Parameters
None
Returns
The hs.pathwatcher object
​stop​
Signature
hs.pathwatcher:stop()
Type
Method
Description
Stops a path watcher
Parameters
None
Returns
None