Fix: Drop support for composer/composer:^1.0.0

.github/workflows/integrate.yaml

@@ -9,7 +9,7 @@ on: # yamllint disable-line rule:truthy
       - "main"
 
 env:
-  COMPOSER_VERSION: "1.10.17"
+  COMPOSER_VERSION: "2.0.4"
   ERGEBNIS_BOT_NAME: "ergebnis-bot"
   PHP_EXTENSIONS: "mbstring"
   PHP_INI_VALUES: "memory_limit=-1, phar.readonly=0"
@@ -201,29 +201,13 @@ jobs:
           - "7.2"
           - "7.3"
           - "7.4"
-
-        composer-version:
-          - "1"
-          - "2"
+          - "8.0"
 
         dependencies:
           - "lowest"
           - "locked"
           - "highest"
 
-        include:
-          - php-version: "8.0"
-            composer-version: "2"
-            dependencies: "lowest"
-
-          - php-version: "8.0"
-            composer-version: "2"
-            dependencies: "locked"
-
-          - php-version: "8.0"
-            composer-version: "2"
-            dependencies: "highest"
-
     steps:
       - name: "Checkout"
         uses: "actions/checkout@v2.3.3"
@@ -239,17 +223,6 @@ jobs:
       - name: "Set up problem matchers for phpunit/phpunit"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/phpunit.json\""
 
-      - name: "Install composer:^1"
-        if: "matrix.composer-version == '1'"
-        run: "composer self-update ${{ env.COMPOSER_VERSION }}"
-
-      - name: "Install composer:^2"
-        if: "matrix.composer-version == '2'"
-        run: "composer self-update --snapshot"
-
-      - name: "Show composer version"
-        run: "composer --version"
-
       - name: "Determine composer cache directory"
         uses: "./.github/actions/composer/composer/determine-cache-directory"
 

.github/workflows/release.yaml

@@ -8,7 +8,7 @@ on: # yamllint disable-line rule:truthy
       - "**"
 
 env:
-  COMPOSER_VERSION: "1.10.17"
+  COMPOSER_VERSION: "2.0.4"
   PHP_EXTENSIONS: "mbstring"
   PHP_INI_VALUES: "memory_limit=-1, phar.readonly=0"
 

CHANGELOG.md

@@ -6,11 +6,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
-For a full diff see [`2.9.0...main`][2.9.0...main].
+For a full diff see [`2.9.1...main`][2.9.1...main].
+
+## [`2.9.1`][2.9.1]
+
+For a full diff see [`2.9.0...2.9.1`][2.9.0...2.9.1].
 
 ### Fixed
 
 * Required at least `composer/composer:^1.10.17` and used `composer/composer:1.10.17` for `composer-normalize.phar` ([#596]), by [@localheinz]
+* Dropped support for `composer/composer:^1.0.0` ([#597]), by [@localheinz]
 
 ## [`2.9.0`][2.9.0]
 
@@ -469,6 +474,7 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [2.8.1]: https://github.com/ergebnis/composer-normalize/releases/tag/2.8.1
 [2.8.2]: https://github.com/ergebnis/composer-normalize/releases/tag/2.8.2
 [2.9.0]: https://github.com/ergebnis/composer-normalize/releases/tag/2.9.0
+[2.9.1]: https://github.com/ergebnis/composer-normalize/releases/tag/2.9.1
 
 [81bc3a8...0.1.0]: https://github.com/ergebnis/composer-normalize/compare/81bc3a8...0.1.0
 [0.1.0...0.2.0]: https://github.com/ergebnis/composer-normalize/compare/0.1.0...0.2.0
@@ -513,7 +519,8 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [2.8.0...2.8.1]: https://github.com/ergebnis/composer-normalize/compare/2.8.0...2.8.1
 [2.8.1...2.8.2]: https://github.com/ergebnis/composer-normalize/compare/2.8.1...2.8.2
 [2.8.2...2.9.0]: https://github.com/ergebnis/composer-normalize/compare/2.8.2...2.9.0
-[2.9.0...main]: https://github.com/ergebnis/composer-normalize/compare/2.9.0...main
+[2.9.0...2.9.1]: https://github.com/ergebnis/composer-normalize/compare/2.9.0...2.9.1
+[2.9.1...main]: https://github.com/ergebnis/composer-normalize/compare/2.9.1...main
 
 [#1]: https://github.com/ergebnis/composer-normalize/pull/1
 [#2]: https://github.com/ergebnis/composer-normalize/pull/2
@@ -580,6 +587,7 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [#572]: https://github.com/ergebnis/composer-normalize/pull/572
 [#582]: https://github.com/ergebnis/composer-normalize/pull/582
 [#596]: https://github.com/ergebnis/composer-normalize/pull/596
+[#597]: https://github.com/ergebnis/composer-normalize/pull/597
 
 [@core23]: https://github.com/core23
 [@dependabot]: https://github.com/dependabot

Makefile

@@ -1,4 +1,4 @@
-COMPOSER_VERSION:=1.10.17
+COMPOSER_VERSION:=2.0.4
 
 .PHONY: it
 it: coding-standards static-code-analysis tests ## Runs the coding-standards, static-code-analysis, and tests targets

composer.json

@@ -18,14 +18,14 @@
   ],
   "require": {
     "php": "^7.2 || ^8.0",
-    "composer-plugin-api": "^1.1.0 || ^2.0.0",
+    "composer-plugin-api": "^2.0.0",
     "ergebnis/json-normalizer": "~0.13.1",
     "ergebnis/json-printer": "^3.1.1",
     "justinrainbow/json-schema": "^5.2.10",
     "localheinz/diff": "^1.1.1"
   },
   "require-dev": {
-    "composer/composer": "^1.10.17 || ^2.0.0",
+    "composer/composer": "^2.0.0",
     "composer/package-versions-deprecated": "^1.11.99",
     "ergebnis/license": "^1.1.0",
     "ergebnis/php-cs-fixer-config": "^2.5.1",