Refactor composer setup

README.md

@@ -86,7 +86,8 @@ with:
 ```
 
 To set up a particular version of a tool, specify it in the form `tool:version`. 
-Latest stable version of `composer` is setup by default and accepts `v1`, `v2`, `snapshot` and `preview` as versions.
+
+The latest stable version of `composer` is set up by default. You can set up the required `composer` version by specifying `v1`, `v2`, `snapshot` or `preview` as versions or the exact version in semver format.
 
 ```yaml
 uses: shivammathur/setup-php@v1
@@ -95,6 +96,8 @@ with:
   tools: composer:v2
 ```
 
+If you have specified composer plugins `prestissimo` or `composer-prefetcher` in tools, the latest stable version of `composer v1` will be setup. Unless some of your packages require `composer v1`, it is recommended to drop `prestissimo` and use `composer v2`.
+
 Version for other tools should be in `semver` format and a valid release of the tool.
 
 ```yaml

__tests__/tools.test.ts

@@ -296,9 +296,15 @@ describe('Tools tests', () => {
     expect(await tools.getComposerUrl('1.7.2')).toContain(
       'https://github.com/composer/composer/releases/download/1.7.2/composer.phar'
     );
+    expect(await tools.getComposerUrl('1.7.2')).toContain(
+      'https://getcomposer.org/composer-1.7.2.phar'
+    );
     expect(await tools.getComposerUrl('2.0.0-RC2')).toContain(
       'https://github.com/composer/composer/releases/download/2.0.0-RC2/composer.phar'
     );
+    expect(await tools.getComposerUrl('2.0.0-RC2')).toContain(
+      'https://getcomposer.org/composer-2.0.0-RC2.phar'
+    );
     expect(await tools.getComposerUrl('wrong')).toContain(
       'https://getcomposer.org/composer-stable.phar'
     );

dist/index.js

@@ -1919,22 +1919,17 @@ exports.addComposer = addComposer;
  * @param version
  */
 async function getComposerUrl(version) {
-    const cache_url = 'https://github.com/shivammathur/composer-cache/releases/latest/download/composer-' +
+    let cache_url = `https://github.com/shivammathur/composer-cache/releases/latest/download/composer-${version.replace('latest', 'stable')}.phar`;
-        version.replace('latest', 'stable') +
+    switch (true) {
-        '.phar,';
+        case /^snapshot$/.test(version):
-    switch (version) {
+            return `${cache_url},https://getcomposer.org/composer.phar`;
-        case 'snapshot':
+        case /^preview$|^[1-2]$/.test(version):
-            return cache_url + 'https://getcomposer.org/composer.phar';
+            return `${cache_url},https://getcomposer.org/composer-${version}.phar`;
-        case 'preview':
+        case /^\d+\.\d+\.\d+[\w-]*$/.test(version):
-        case '1':
+            cache_url = `https://github.com/composer/composer/releases/download/${version}/composer.phar`;
-        case '2':
+            return `${cache_url},https://getcomposer.org/composer-${version}.phar`;
-            return (cache_url + 'https://getcomposer.org/composer-' + version + '.phar');
         default:
-            if (/^\d+\.\d+\.\d+[\w-]*$/.test(version)) {
+            return `${cache_url},https://getcomposer.org/composer-stable.phar`;
-                return (cache_url +
-                    `https://github.com/composer/composer/releases/download/${version}/composer.phar`);
-            }
-            return cache_url + 'https://getcomposer.org/composer-stable.phar';
     }
 }
 exports.getComposerUrl = getComposerUrl;

src/tools.ts

@@ -307,27 +307,20 @@ export async function addComposer(tools_list: string[]): Promise<string[]> {
  * @param version
  */
 export async function getComposerUrl(version: string): Promise<string> {
-  const cache_url =
+  let cache_url = `https://github.com/shivammathur/composer-cache/releases/latest/download/composer-${version.replace(
-    'https://github.com/shivammathur/composer-cache/releases/latest/download/composer-' +
+    'latest',
-    version.replace('latest', 'stable') +
+    'stable'
-    '.phar,';
+  )}.phar`;
-  switch (version) {
+  switch (true) {
-    case 'snapshot':
+    case /^snapshot$/.test(version):
-      return cache_url + 'https://getcomposer.org/composer.phar';
+      return `${cache_url},https://getcomposer.org/composer.phar`;
-    case 'preview':
+    case /^preview$|^[1-2]$/.test(version):
-    case '1':
+      return `${cache_url},https://getcomposer.org/composer-${version}.phar`;
-    case '2':
+    case /^\d+\.\d+\.\d+[\w-]*$/.test(version):
-      return (
+      cache_url = `https://github.com/composer/composer/releases/download/${version}/composer.phar`;
-        cache_url + 'https://getcomposer.org/composer-' + version + '.phar'
+      return `${cache_url},https://getcomposer.org/composer-${version}.phar`;
-      );
     default:
-      if (/^\d+\.\d+\.\d+[\w-]*$/.test(version)) {
+      return `${cache_url},https://getcomposer.org/composer-stable.phar`;
-        return (
-          cache_url +
-          `https://github.com/composer/composer/releases/download/${version}/composer.phar`
-        );
-      }
-      return cache_url + 'https://getcomposer.org/composer-stable.phar';
   }
 }