TextMate 2 Bundle for Crystal.

mkdir -p ~/Library/Application\ Support/TextMate/Bundles
cd ~/Library/Application\ Support/TextMate/Bundles
git clone https://github.com/crystal-lang-tools/Crystal.tmbundle.git

• Build - Compile current file - CMD + b
• Run - Run crystal run $current_file - CMD + r
• Format Code - Auto check and format current file - CMD + s
• Test - Run crystal spec $current_file - CMD + SHIFT + r

By default, this bundle will try to call the crystal command. You can specify a path via TM_CRYSTAL env variable.

TM_CRYSTAL=/path/to/your/crystal