Fix Sourcetree icon on macOS

fix-sourcetree-icon.sh

#!/bin/bash

# From: https://jira.atlassian.com/browse/SRCTREE-8221

# Go to the current user's Downloads directory
cd ~/Downloads

# Download a copy of the previous version of Sourcetree
curl -LO 'https://product-downloads.atlassian.com/software/sourcetree/ga/Sourcetree_4.2.16_307.zip'

# Unpack and remove the Zip archive
unzip -q ./Sourcetree_4.2.16_307.zip && rm ./Sourcetree_4.2.16_307.zip

# Generate a new Finder icon file from the old Sourcetree icon
# Rez will exit with an error but still write the resource fork
echo "read 'icns' (-16455) \"./Sourcetree.app/Contents/Resources/sourcetree.icns\";" | \
  { Rez -o "$(printf '/Applications/Sourcetree.app/Icon\r')" 2>/dev/null || true ; }

# Set the Finder's Custom icon flag on the application
SetFile -a C /Applications/Sourcetree.app

# Clean up the downloaded copy of Sourcetree
rm -rf ./Sourcetree.app