#!/bin/bash

compile-python()
{
    # Inspired from the great https://gitlab.com/python-devs/ci-images/
    # Thanks Barry Warsaw.

    # Needs:
    # sudo apt-get update; sudo apt-get install make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

    local PY_VERSION="$1"
    local BETA="$2"
    local URL="https://www.python.org/ftp/python"
    (
        cd /tmp || return 1
        wget -qO- "$URL/$PY_VERSION/Python-$PY_VERSION$BETA.tgz" | tar -xzf - || (
            echo "Version not found, check on $URL."
        )
        [ -d "Python-$PY_VERSION$BETA" ] && (cd "Python-$PY_VERSION$BETA"; ./configure --prefix="$HOME/.local/" && make -j "$(nproc)" && make altinstall) &&
            rm -r "Python-$PY_VERSION$BETA"
    )
}

compile-pythons()
{
    # Compiles a usefull set of Python versions.
    compile-python 3.7.17 &
    compile-python 3.8.18 &
    compile-python 3.9.18 &
    compile-python 3.10.13 &
    compile-python 3.11.5 &
    compile-python 3.12.0 b4 &
    wait
}

_compile_python()
{
    COMPREPLY=( $( compgen -W '$( command curl -s https://www.python.org/ftp/python/  | grep -o ">[0-9.]\+/<" | sed "s/^>//;s|/<$||" )' -- "${COMP_WORDS[COMP_CWORD]}") )
}
complete -F _compile_python compile-python