Gitmoji CLI commit hook

install-gitmoji-hook.sh

#!/usr/bin/env bash
# install gitmoji as a commit hook
#
# - uses https://www.npmjs.com/package/gitmoji-cli
# - does not require global module installation
# - skips hook if message already starts with gitmoji

root="$(git rev-parse --show-toplevel)"
hook="$root/.git/hooks/prepare-commit-msg"

cat >"$hook" <<EOF
#!/usr/bin/env bash
# gitmoji commit hook

# check for skip var
if [[ "\$SKIP_GITMOJI_HOOK" != "" ]]; then exit 0; fi

# check for existing gitmoji (actually check that first character isn't ASCII)
if [[ -f "\$1" ]] && [[ "\$2" == "message" ]] && {
	[[ "\$(grep -o -P "^[\\x{0000}-\\x{007f}]" <\$1)" == "" ]]
} then exit 0; fi

# prompt for gitmoji
exec </dev/tty
npx --package=gitmoji-cli -- gitmoji --hook \$1 \$2
EOF

chmod a+x "$hook"