macOS a robust tool for scheduling automated tasks:
launchd. While quite
different for those used to
cron, it’s a pretty great tool for scheduling
The backstory is that I use the command-line task manager
TaskWarrior for managing my todo items and I recently
setup a sync server to share data between my personal and work computers.
However, TaskWarrior requires manually syncing data by running
task sync. This
is annoying, so I thought, why not run this automatically?
launchd comes in! I created a simple config that will run at 8:30
and 5:30 each day, in addition to running on a 10 minute interval throughout the
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"> <dict> <key>Label</key> <string>dev.mskelton.task-sync</string> <key>ProgramArguments</key> <array> <string>/opt/homebrew/bin/task</string> <string>sync</string> </array> <key>StartInterval</key> <integer>600</integer> <key>StartCalendarInterval</key> <array> <dict> <key>Hour</key> <integer>8</integer> <key>Minute</key> <integer>30</integer> </dict> <dict> <key>Hour</key> <integer>17</integer> <key>Minute</key> <integer>30</integer> </dict> </array> </dict></plist>
Drop this file in
~/Library/LaunchAgents/ and running the following command to
start the schedule.
launchctl bootstrap "gui/$(id -u)" ~/Library/LaunchAgents/dev.mskelton.task-sync.plist
If you make edits to the config, run the following to reload the config.
path=~/Library/LaunchAgents/dev.mskelton.task-sync.plistlaunchctl bootout "gui/$(id -u)" $pathlaunchctl bootstrap "gui/$(id -u)" $path
Now sit back and enjoy the beauty of macOS doing work for you! I was very pleasantly surprised with how well this worked, haven’t had to manually sync my tasks at all since adding this.