Change the open file limit on OSX Sierra.

increase_limit.sh

#!/bin/bash
#Thanks to https://superuser.com/a/1171028
echo "This script increases the max files a proccess can have open in OSX Sierra."
echo "It should improve IDE performance in large projects with multiple watchers."
set -e

plistcontent=$(cat <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
        "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>limit.maxfiles</string>
    <key>ProgramArguments</key>
    <array>
      <string>launchctl</string>
      <string>limit</string>
      <string>maxfiles</string>
      <string>64000</string>
      <string>524288</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>ServiceIPC</key>
    <false/>
  </dict>
</plist>
)

#Save LaunchDaemon
echo -e "$plistcontent" | sudo tee /Library/LaunchDaemons/limit.maxfiles.plist > /dev/null

#Set permissions
sudo chown root:wheel /Library/LaunchDaemons/limit.maxfiles.plist

#Load settings
sudo launchctl load -w /Library/LaunchDaemons/limit.maxfiles.plist

typo in process at line 3 😁