Determine composer based on magento version

Dockerfile.template

@@ -1,7 +1,6 @@
 FROM php:${php.version}-cli-${php.variant}
 
-# Magento 2 does not support Composer 2
-COPY --from=composer:1 /usr/bin/composer /usr/bin/composer
+COPY --from=composer:${composer} /usr/bin/composer /usr/bin/composer
 
 <% if (php.variant.startsWith('alpine')) { %>
     RUN apk add --no-cache unzip \

lib/index.js

@@ -31,6 +31,7 @@ for (const magentoVersion of magentoVersions) {
             for (const phpVariant of semverMetrixConfig.php) {
                 matrixVersions.push({
                     magento: magentoVersion,
+                    composer: semverMetrixConfig.composer,
                     php: phpVariant.version,
                     variant: phpVariant.variant
                 });
@@ -48,6 +49,7 @@ matrixVersions = tags(matrixVersions);
 for (const matrixVersion of matrixVersions) {
     const matrixDockerfile = _.template(dockerfile)({
         magento: matrixVersion.version.magento,
+        composer: matrixVersion.version.composer,
         php: {
             version: matrixVersion.version.php,
             variant: matrixVersion.version.variant
@@ -59,6 +61,7 @@ for (const matrixVersion of matrixVersions) {
 
     matrix.push({
         version: matrixVersion.version.magento,
+        composer: matrixVersion.version.composer,
         php: {
             version: matrixVersion.version.php,
             variant: matrixVersion.version.variant

lib/package.json

@@ -6,5 +6,8 @@
     "lodash": "^4.17.20",
     "path": "^0.12.7",
     "semver": "^7.3.4"
+  },
+  "volta": {
+    "node": "14.21.3"
   }
 }

versions.json

@@ -1,5 +1,6 @@
 {
     ">= 2.4": {
+        "composer": "2",
         "php": [
             {
                 "version": "8.1",
@@ -36,6 +37,7 @@
         ]
     },
     ">= 2.3": {
+        "composer": "1",
         "php": [
             {
                 "version": "7.3",