Script to install "latest" (or other "desired") version of all asdf plugins and make them "current"

asdf-update-all.sh

#!/usr/bin/env bash

# adapted from:
# https://gist.github.com/developer-guy/4de4e2ff2eaa31633a0fef719c92eada
# 2021-12-18

function update() {
    asdf update > /dev/null 2>&1
    echo asdf `asdf --version`
    for i in `asdf plugin list`; do
        CURRENT_VERSION=`asdf current $i | awk '{print $2}'`
        echo "$i $CURRENT_VERSION"
        DESIRED_VERSION=`desired_version $i`
        if [ -n "$DESIRED_VERSION" ]; then
            if [[ $(semver_check $DESIRED_VERSION $CURRENT_VERSION) -gt 0 ]]; then
                echo " Installing $i $DESIRED_VERSION"
                asdf install $i $DESIRED_VERSION
                echo " Setting global $i to $DESIRED_VERSION"
                asdf global $i $DESIRED_VERSION
            fi
        else
            echo " (no desired version specified)"
        fi
    done
}

function desired_version () {
    case $1 in
        java)
            asdf list all java | grep "zulu-\d" | sort -V | tail -1
            ;;
        rust)
            echo stable
            ;;
        *)
            asdf latest $1 2> /dev/null
            ;;
    esac
}

function semver_check() {
    # sort low->high then pick the last one (highest)
    local HV; HV=$(echo -e "$1\n$2" |sort -V |tail -1)
    # They're not the same and $1 is not the high version = -1
    [[ "$1" != "$2" && "$1" != "$HV" ]] && echo -1 && return
    # 0 = they're the same; 1 = not the same
    [[ "$1" == "$2" ]]; echo $?
}

function main() {
    update
}

main