Formatting Dart code before every git commit
Dart 's dartfmt tool is a really neat utility to automatically format your code. Use the dartfmt  tool in your workflow to ensure your code complies with the Dart style guide .   Of course, you don't want to manually run dartfmt. Instead, you want to automate it. Use git's pre-commit hook to ensure your code is formatted, before it is committed.   Add the following code to your . git/hooks/pre-commit  script for your local repo, and make sure the script is executable.    #!/bin/bash     DARTFMT_OUTPUT=`dartfmt -w . | grep Formatted`     if [ -n "$DARTFMT_OUTPUT" ]; then     echo $DARTFMT_OUTPUT     echo "Re-attempt commit."     exit 1   else     echo "All Dart files formatted correctly. Yay!"     exit 0    fi     If your code needs formatting, it will be formatted and written to disk. The commit will fail, so you have a chance to inspect the changes.     You can enforce formatting with your Continuous Integration system. Try these instructions ...