Creation of PHAR using Nix, in a reproducible environment

.gitattributes

@@ -5,7 +5,6 @@
 /.gitignore export-ignore
 /box.json.dist export-ignore
 /build-phar.sh export-ignore
-/composer.lock export-ignore
 /infection.json.dist
 /phpcs.xml.dist export-ignore
 /phpunit.xml.dist export-ignore

.github/workflows/release-phar.yml

@@ -26,36 +26,12 @@ jobs:
       - name: "Checkout"
         uses: "actions/checkout@v3"
 
-      - name: "Install PHP"
-        uses: "shivammathur/[email protected]"
-        with:
-          coverage: "pcov"
-          php-version: "${{ matrix.php-version }}"
-          ini-values: memory_limit=-1
+      - uses: DeterminateSystems/nix-installer-action@v9
 
-      - name: "Cache dependencies"
-        uses: "actions/cache@v3"
-        with:
-          path: |
-            ~/.composer/cache
-            vendor
-          key: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
-          restore-keys: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
-
-      - name: "Install lowest dependencies"
-        if: ${{ matrix.dependencies == 'lowest' }}
-        run: "composer update --prefer-lowest --no-interaction --no-progress --no-suggest"
-
-      - name: "Install highest dependencies"
-        if: ${{ matrix.dependencies == 'highest' }}
-        run: "composer update --no-interaction --no-progress --no-suggest"
-
-      - name: "Install locked dependencies"
-        if: ${{ matrix.dependencies == 'locked' }}
-        run: "composer install --no-interaction --no-progress --no-suggest"
-
-      - name: "build-phar.sh"
-        run: "build-phar.sh"
+      - name: "Build PHAR"
+        run: |
+          "nix build .#phar"
+          "cp result/*.phar dist/*"
 
       - name: "Upload PHAR"
         uses: fnkr/[email protected]

box.json.dist

@@ -1,15 +1,10 @@
 {
-    "compactors": [
-        "Herrera\\Box\\Compactor\\Php",
-        "Herrera\\Box\\Compactor\\Json"
-    ],
     "compression": "GZ",
     "main": "bin/roave-backward-compatibility-check.php",
     "output": "dist/roave-backward-compatibility-check.phar",
     "files-bin": [
         "LICENSE",
         "vendor/composer/composer/LICENSE"
     ],
-    "chmod": "0755",
-    "git-version": "git-version"
+    "chmod": "0755"
 }

build-phar.sh

@@ -1,18 +1,17 @@
-#!/usr/bin/env bash
-
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash --pure
+#! nix-shell -p bash phpPackages.box phpPackages.composer
+#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/fae7198d73783051aae436f84bb91bd9932a6f6d.tar.gz
 set -e
 
 BOX_DIR="/tmp/box"
 
 mkdir -p ${BOX_DIR}
 
-# Install humbug/box
-composer --working-dir=${BOX_DIR} require humbug/box "^3.8" --no-interaction --no-progress --no-suggest
-
 # Remove dev dependencies for package distribution
 composer install --no-dev
 
-${BOX_DIR}/vendor/bin/box compile
+box compile
 
 composer install
 

composer.json

@@ -3,7 +3,6 @@
     "description": "Tool to compare two revisions of a public API to check for BC breaks",
     "require": {
         "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
-        "ext-json": "*",
         "azjezz/psl": "^2.3.1",
         "composer/composer": "^2.5.1",
         "nikic/php-parser": "^4.15.3",