Add dotnet runtime installation before main script run

dist/setup/index.js

@@ -71385,14 +71385,39 @@ class DotnetCoreInstaller {
         return __awaiter(this, void 0, void 0, function* () {
             const versionResolver = new DotnetVersionResolver(this.version);
             const dotnetVersion = yield versionResolver.createDotnetVersion();
-            const installScript = new DotnetInstallScript()
+            /**
+             * Install dotnet runitme first in order to get
+             * the latest stable version of dotnet CLI
+             */
+            const runtimeInstallOutput = yield new DotnetInstallScript()
+                // If dotnet CLI is already installed - avoid overwriting it
+                .useArguments(utils_1.IS_WINDOWS ? '-SkipNonVersionedFiles' : '--skip-non-versioned-files')
+                // Install only runtime + CLI
+                .useArguments(utils_1.IS_WINDOWS ? '-Runtime' : '--runtime', 'dotnet')
+                // Use latest stable version
+                .useArguments(utils_1.IS_WINDOWS ? '-Channel' : '--channel', 'LTS')
+                .execute();
+            if (runtimeInstallOutput.exitCode) {
+                /**
+                 * dotnetInstallScript will install CLI and runtime even if previous script haven't succeded,
+                 * so at this point it's too early to throw an error
+                 */
+                core.warning(`Failed to install dotnet runtime + cli, exit code: ${runtimeInstallOutput.exitCode}. ${runtimeInstallOutput.stderr}`);
+            }
+            /**
+             * Install dotnet over the latest version of
+             * dotnet CLI
+             */
+            const dotnetInstallOutput = yield new DotnetInstallScript()
+                // Don't overwrite CLI because it should be already installed
                 .useArguments(utils_1.IS_WINDOWS ? '-SkipNonVersionedFiles' : '--skip-non-versioned-files')
-                .useVersion(dotnetVersion, this.quality);
-            const { exitCode, stderr, stdout } = yield installScript.execute();
-            if (exitCode) {
-                throw new Error(`Failed to install dotnet, exit code: ${exitCode}. ${stderr}`);
+                // Use version provided by user
+                .useVersion(dotnetVersion, this.quality)
+                .execute();
+            if (dotnetInstallOutput.exitCode) {
+                throw new Error(`Failed to install dotnet, exit code: ${dotnetInstallOutput.exitCode}. ${dotnetInstallOutput.stderr}`);
             }
-            return this.parseInstalledVersion(stdout);
+            return this.parseInstalledVersion(dotnetInstallOutput.stdout);
         });
     }
     parseInstalledVersion(stdout) {

src/installer.ts

@@ -259,21 +259,51 @@ export class DotnetCoreInstaller {
     const versionResolver = new DotnetVersionResolver(this.version);
     const dotnetVersion = await versionResolver.createDotnetVersion();
 
-    const installScript = new DotnetInstallScript()
+    /**
+     * Install dotnet runitme first in order to get
+     * the latest stable version of dotnet CLI
+     */
+    const runtimeInstallOutput = await new DotnetInstallScript()
+      // If dotnet CLI is already installed - avoid overwriting it
       .useArguments(
         IS_WINDOWS ? '-SkipNonVersionedFiles' : '--skip-non-versioned-files'
       )
-      .useVersion(dotnetVersion, this.quality);
+      // Install only runtime + CLI
+      .useArguments(IS_WINDOWS ? '-Runtime' : '--runtime', 'dotnet')
+      // Use latest stable version
+      .useArguments(IS_WINDOWS ? '-Channel' : '--channel', 'LTS')
+      .execute();
+
+    if (runtimeInstallOutput.exitCode) {
+      /**
+       * dotnetInstallScript will install CLI and runtime even if previous script haven't succeded,
+       * so at this point it's too early to throw an error
+       */
+      core.warning(
+        `Failed to install dotnet runtime + cli, exit code: ${runtimeInstallOutput.exitCode}. ${runtimeInstallOutput.stderr}`
+      );
+    }
 
-    const {exitCode, stderr, stdout} = await installScript.execute();
+    /**
+     * Install dotnet over the latest version of
+     * dotnet CLI
+     */
+    const dotnetInstallOutput = await new DotnetInstallScript()
+      // Don't overwrite CLI because it should be already installed
+      .useArguments(
+        IS_WINDOWS ? '-SkipNonVersionedFiles' : '--skip-non-versioned-files'
+      )
+      // Use version provided by user
+      .useVersion(dotnetVersion, this.quality)
+      .execute();
 
-    if (exitCode) {
+    if (dotnetInstallOutput.exitCode) {
       throw new Error(
-        `Failed to install dotnet, exit code: ${exitCode}. ${stderr}`
+        `Failed to install dotnet, exit code: ${dotnetInstallOutput.exitCode}. ${dotnetInstallOutput.stderr}`
       );
     }
 
-    return this.parseInstalledVersion(stdout);
+    return this.parseInstalledVersion(dotnetInstallOutput.stdout);
   }
 
   private parseInstalledVersion(stdout: string): string | null {