Bashup

A (toy) language that compiles to bash. You can think of bashup as just a little syntactic sugar sprinkled on top of bash; any valid bash script is also a valid bashup script.

Just a spoonful of sugar makes the bashisms go down…

#!/bin/bash

@fn hi greeting='Hello', target {
    echo "${greeting}, ${target}!"
}

hi --target='World'

Installation:

$ pip install bashup

Compile and run the above example:

$ bashup -i above_example.bashup -o above_example.sh
$ bash above_example.sh
Hello, World!

Or just run it directly:

$ bashup -r above_example.bashup
Hello, World!

Compiled code (above_example.sh):

#!/bin/bash

#
# usage: hi [--greeting=<GREETING>] --target=<TARGET> [ARGS]
#
hi() {
    local greeting='Hello'
    local target
    local target__set=0
    local args=()

    while (( $# )); do
        if [[ "${1}" == --greeting=* ]]; then
            greeting=${1#--greeting=}
        elif [[ "${1}" == --target=* ]]; then
            target=${1#--target=}
            target__set=1
        else
            args+=("${1}")
        fi
        shift
    done

    if ! (( target__set )); then
        echo "[ERROR] The --target parameter must be given."
        return 1
    fi

    __hi "${greeting}" "${target}" "${args[@]}"
}

__hi() {
    local greeting=${1}
    local target=${2}
    shift 2

    echo "${greeting}, ${target}!"
}

hi --target='World'

@fn hi greeting='Hello', target {
  echo "${greeting}, ${target}!"
}

#
# usage: hi [--greeting=<GREETING>] --target=<TARGET> [ARGS]
#
hi() {
  local greeting='Hello'
  local target
  local target__set=0
  local args=()

  while (( $# )); do
    if [[ "${1}" == --greeting=* ]; then
      greeting=${1#--greeting=}
      ...