Use `jq` to tweak `composer.json` requirements

README.md

Change Symfony requirements in composer.json

This took me two hours on stackoverflow.com, so I'm going to document it to future me:

In the composer.json require section, for all packages starting with symfony/, but not for symfony/monolog-bundle, change the required version to the value of the $VERSION environment variable.

Write out the updated composer.json file in a way that works _without sponge`, which is not installed on GitHub Action runners by default.

gistfile1.txt

#!/bin/bash

cat <<< $(jq --arg version $VERSION '.require  |= with_entries(if ((.key != "symfony/monolog-bundle") and (.key|test("^symfony/"))) then .value=$version else . end)' < composer.json) > composer.json