docker_cmd.sh

#!/bin/sh
# NOTE: This script uses tabs for indentation

errcho() {
	echo "$@" >&2
}

USAGE="Usage: $0 <command>"

# Check preconditions
for arg; do
	if [ "$arg" = "--help" ]; then
		echo "$USAGE"
		exit 0
	fi
done

# Allow $RUNTIME to be overriden by the user as an environment variable
# Else check if either docker or podman exit and set them as runtime
# if none are found error out
if [ -z "$RUNTIME" ]; then
	if command -v docker >/dev/null 2>&1; then
		RUNTIME="docker"
	elif command -v podman >/dev/null 2>&1; then
		RUNTIME="podman"
	else
		errcho "Error: no compatible container runtime found."
		errcho "Either podman or docker are required."
		errcho "See https://podman.io/getting-started/installation"
		errcho "or https://docs.docker.com/install/#supported-platforms"
		errcho "for installation instructions."
		exit 2
	fi
fi


# IF we are using docker on non Linux and docker-machine isn't working print an error
# ELSE set usb_args
if [ ! "$(uname)" = "Linux" ] && [ "$RUNTIME" = "docker" ] && ! docker-machine active >/dev/null 2>&1; then
    errcho "Error: target requires docker-machine to work on your platform"
    errcho "See http://gw.tnode.com/docker/docker-machine-with-usb-support-on-windows-macos"
    exit 3
else
    usb_args="--privileged -v /dev:/dev"
fi
dir=$(pwd -W 2>/dev/null) || dir=$PWD  # Use Windows path if on Windows

if [ "$RUNTIME" = "docker" ]; then
	uid_arg="--user $(id -u):$(id -g)"
fi

# Run container and build firmware
"$RUNTIME" run --rm -it \
	$usb_args \
	$uid_arg \
	-w /qmk_firmware \
	-v "$dir":/qmk_firmware \
	qmkfm/qmk_cli \
	"$@"