git hooks install script

install-hooks.sh

#!/bin/bash

HOOK_NAMES="pre-commit"
HOOK_DIR=$(git rev-parse --show-toplevel)/.git/hooks
INSTALL_DIR=$(git rev-parse --show-toplevel)/hooks
COLOR_GREEN=`tput setaf 2`
COLOR_RESET=`tput sgr0`

for hook in $HOOK_NAMES; do
    echo "Installing $hook hook..."
    # If the hook already exists, is executable, and is not a symlink
    if [ ! -h $HOOK_DIR/$hook -a -x $HOOK_DIR/$hook ]; then
        echo "Hook already exists, saving old hook backup at $HOOK_DIR/$hook.local..."
        mv $HOOK_DIR/$hook $HOOK_DIR/$hook.local
    fi
    # create the symlink, overwriting the file if it exists
    # probably the only way this would happen is if you're using an old version of git
    # -- back when the sample hooks were not executable, instead of being named ____.sample
    echo -n "Creating symlink..."
    ln -s -f $INSTALL_DIR/$hook $HOOK_DIR
    echo "${COLOR_GREEN} Done! ✓${COLOR_RESET}"
done

pre-commit

#!/bin/bash

FILE_NAMES=$(git diff --cached --name-only --diff-filter=ACM "*.js" "*.json" "*.scss" "*.md" | tr '\n' ' ')
[ -z "$FILE_NAMES" ] && exit 0

# Prettify all staged .js files
echo "$FILE_NAMES" | xargs ./node_modules/.bin/prettier --write

# Add back the modified/prettified files to staging
echo "$FILE_NAMES" | xargs git add

exit 0