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How To Easily Show A Diff Between Two Versions Of A Composer Package

Is there an easy way to show a diff between two different versions of one Composer package? Of course, I could manually or semi-automatically download the two versions and then manually run a diff on them. However, it would be quite handy to have a command like

composer diff namespace/module 1.0.0 1.0.1

This would show a diff between the versions 1.0.0 and 1.0.1 of package namespace/module, so that I can easily review what has changed.

Is there any smart way to do that?

It would even be nicer if I could see the diff in PhpStorm.

Solution

  • Assuming you are in the project directory, JQ must be installed.

    It installs both package versions in temp folders and compares them.

    Usage: ./composer-diff.sh foo/bar 1.0.0 2.0.0

    #!/bin/bash

PACKAGE=$1 # namespace/module
OLD=$2
NEW=$3

PROJECT=`pwd`

TMPBASE=/tmp/$$

mkdir -p $TMPBASE/$OLD
mkdir -p $TMPBASE/$NEW

jq '{repositories}' composer.json > $TMPBASE/$OLD/composer.json
jq '{repositories}' composer.json > $TMPBASE/$NEW/composer.json
cp auth.json $TMPBASE/$OLD
cp auth.json $TMPBASE/$NEW

cd $TMPBASE/$OLD
composer require $PACKAGE $OLD

cd $TMPBASE/$NEW
composer require $PACKAGE $NEW

set +x
diff -ur $TMPBASE/$OLD/vendor/$PACKAGE $TMPBASE/$NEW/vendor/$PACKAGE > $PROJECT/composer-package.diff

    Now the resulting composer-package.diff file can be openend in any editor.