run-on-macos-screen-events

A tiny Swift program to run a command whenever the screen locks or unlocks
(I use it for locking other local machines' screens when locking the primary, and remounting network shares when waking from sleep)

# run-on-macos-screen-events <command-to-run-on-unlock> [command-args]
run-on-macos-screen-events ./examples/mount-network-shares.sh

# add to launchctl (start on login)
serviceman add --user \
    --path "$PATH" \
    ./run-on-macos-screen-events ./examples/mount-network-shares.sh

Table of Contents

• Acknowledgement
• Install
• Run on Login
  • With serviceman
  • With a plist template
• Build from Source
• Publish Release
• Similar Products

Acknowledgement

Forked from coolaj86/run-on-macos-screen-unlock.

Install

1. Download

   curl --fail-with-body -L -O https://github.com/smartwatermelon/run-on-macos-screen-events/releases/download/v1.1.0/run-on-macos-screen-events-v1.1.0.tar.gz

2. Extract

   tar xvf ./run-on-macos-screen-events-v1.1.0.tar.gz

3. Allow running even though it's unsigned

   xattr -r -d com.apple.quarantine ./run-on-macos-screen-events

4. Move into your PATH

   mv ./run-on-macos-screen-events ~/bin/

Run on Login

You'll see notifications similar to these when adding launchctl services yourself:

With serviceman

1. Install serviceman

   curl --fail-with-body -sS https://webi.sh/serviceman | sh
   source ~/.config/envman/PATH.env

2. Register with Launchd
   (change COMMAND_GOES_HERE to your command)

   serviceman add --user \
       --path "$PATH" \
       ~/bin/run-on-macos-screen-events COMMAND_GOES_HERE

With a plist template

1. Download the template plist file

   curl --fail-with-body -L -O https://raw.githubusercontent.com/smartwatermelon/run-on-macos-screen-events/main/examples/run-on-macos-screen-events.COMMAND_LABEL_GOES_HERE.plist

2. Change the template variables to what you need:

   • USERNAME_GOES_HERE (the result of $(id -u -n) or echo $USER)
   • COMMAND_LABEL_GOES_HERE (lowercase, dashes, no spaces)
   • COMMAND_GOES_HERE (the example uses ./examples/mount-network-shares.sh)

3. Rename and move the file to ~/Library/LaunchDaemons/

   mv ./run-on-macos-screen-events.COMMAND_LABEL_GOES_HERE.plist ./run-on-macos-screen-events.example-label.plist
   mv ./run-on-macos-screen-events.*.plist ~/Library/LaunchDaemons/

4. Register using launchctl

   launchctl load -w ~/Library/LaunchAgents/run-on-macos-screen-events.*.plist

View logs

tail -f ~/.local/share/run-on-macos-screen-events.*/var/log/run-on-macos-screen-events.*.log

Build from Source

1. Install XCode Tools
   (including git and swift)

   xcode-select --install

2. Clone and enter the repo

   git clone https://github.com/smartwatermelon/run-on-macos-screen-events.git
   pushd ./run-on-macos-screen-events/

3. Build with swiftc

   swiftc ./run-on-macos-screen-events.swift

Publish Release

1. Git tag and push

   git tag v1.1.x
   git push --tags

2. Create a release
   https://github.com/smartwatermelon/run-on-macos-screen-events/releases/new
3. Tar and upload

   tar cvf ./run-on-macos-screen-events-v1.1.x.tar ./run-on-macos-screen-events
   gzip ./run-on-macos-screen-events-v1.1.x.tar
   open .

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