djam

#!/bin/bash

die() {
    printf '%s\n' "$1" >&2
    exit 1
}

show_usage() {
    cat << EOF

Runs JAMScript instances in docker containers.
The docker version of the normal 'jam' commands

djam help   - Prints this help.
djam build  - Rebuilds another docker image.
djam clean  - Cleans up the mess left behind by old runs.
              Use this command if errors occur due to incomplete runs.
djam close  - Close all tmux terminals opened by the 'term' command.
djam comp   - Compile the JAMScript program in the container.
              Executable file is copied back to the original folder.
djam exec   - Execute the given program in an existing (running) configuration.
djam init   - Initializes the delay values for the docker topology.
              Saves zones information and starts pumba (net emulator).
djam kill   - Kill a particular application or all active applications.
djam list   - Lists all the JAMScript programs running in the system.
djam load   - Loads the given file into each node in the current topology.
              New file goes into the /jamfiles folder.
djam log    - Shows the logs written by the C nodes. A good way to
              see the debug messages from the C side.
djam pull   - Pull the given docker image and make it the default
djam run    - Start a device, fog, or cloud
djam term   - Reattach to a tmux terminal of a running JAMScript instance
              Use the 'list' command to find out the ID to connect.
djam test   - Configures a test topology based on the parameter provided in 'init'.
djam stat   - Get the configuration status of djam installation.

Type 'djam cmd --help' for more help on the specific command.

EOF
}

if [ -z $1 ] || [ $1 == "help" ]; then
    show_usage
    exit 0
fi

jcmd=$1
shift 1
params=$@


case $jcmd in
    list)
        jamlist $params
        ;;
    build)
        djambuild $params
        ;;
    init)
        djaminit $params
        ;;
    term)
        djamterm $params
        ;;
    test)
        djamtest $params
        ;;
    kill)
        jamkill $params
        ;;
    clean)
        jamclean $params
        ;;
    log)
        djamlog $params
        ;;
    run)
        djamrun $params
        ;;
    close)
        jamclose $params
        ;;
    pull)
        djampull $params
        ;;
    comp)
        djamcompile $params
        ;;
    compile)
        djamcompile $params
        ;;
    exec)
        djamexec $params
        ;;
    stat)
        djamstat $params
        ;;
esac