Add ability to install runtime only

__tests__/installer.test.ts

@@ -51,7 +51,9 @@ describe('installer tests', () => {
         });
 
         const dotnetInstaller = new installer.DotnetCoreInstaller(
-          inputVersion,
+          await new installer.DotnetVersionResolver(
+            inputVersion
+          ).createDotnetVersion(),
           inputQuality
         );
         await expect(dotnetInstaller.installDotnet()).rejects.toThrow(
@@ -73,7 +75,9 @@ describe('installer tests', () => {
         maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
         const dotnetInstaller = new installer.DotnetCoreInstaller(
-          inputVersion,
+          await new installer.DotnetVersionResolver(
+            inputVersion
+          ).createDotnetVersion(),
           inputQuality
         );
         const installedVersion = await dotnetInstaller.installDotnet();
@@ -96,7 +100,9 @@ describe('installer tests', () => {
         maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
         const dotnetInstaller = new installer.DotnetCoreInstaller(
-          inputVersion,
+          await new installer.DotnetVersionResolver(
+            inputVersion
+          ).createDotnetVersion(),
           inputQuality
         );
 
@@ -119,6 +125,48 @@ describe('installer tests', () => {
         expect(scriptArguments).toContain(expectedArgument);
       });
 
+      it(`should supply 'runtime' argument to the installation script if runtimeOnly parameter is true`, async () => {
+        const inputVersion = '6.0.300';
+        const inputQuality = '' as QualityOptions;
+        const stdout = `Fictitious dotnet version ${inputVersion} is installed`;
+
+        const resolvedVersion = await new installer.DotnetVersionResolver(
+          inputVersion
+        ).createDotnetVersion();
+
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 0,
+            stdout: `${stdout}`,
+            stderr: ''
+          });
+        });
+        maxSatisfyingSpy.mockImplementation(() => inputVersion);
+
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          resolvedVersion,
+          inputQuality,
+          true
+        );
+
+        await dotnetInstaller.installDotnet();
+
+        /**
+         * First time script would be called to
+         * install runtime of the latest version in order
+         * to provide latest CLI, here we are checking only the
+         * second one that installs actual requested runtime
+         */
+        const callIndex = 1;
+
+        const scriptArguments = (
+          getExecOutputSpy.mock.calls[callIndex][1] as string[]
+        ).join(' ');
+        const expectedArgument = IS_WINDOWS ? `-Runtime` : `--runtime`;
+
+        expect(scriptArguments).toContain(expectedArgument);
+      });
+
       it(`should warn if the 'quality' input is set and the supplied version is in A.B.C syntax`, async () => {
         const inputVersion = '6.0.300';
         const inputQuality = 'ga' as QualityOptions;
@@ -133,7 +181,9 @@ describe('installer tests', () => {
         maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
         const dotnetInstaller = new installer.DotnetCoreInstaller(
-          inputVersion,
+          await new installer.DotnetVersionResolver(
+            inputVersion
+          ).createDotnetVersion(),
           inputQuality
         );
 
@@ -159,7 +209,9 @@ describe('installer tests', () => {
         maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
         const dotnetInstaller = new installer.DotnetCoreInstaller(
-          inputVersion,
+          await new installer.DotnetVersionResolver(
+            inputVersion
+          ).createDotnetVersion(),
           inputQuality
         );
 
@@ -186,7 +238,9 @@ describe('installer tests', () => {
           maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
           const dotnetInstaller = new installer.DotnetCoreInstaller(
-            inputVersion,
+            await new installer.DotnetVersionResolver(
+              inputVersion
+            ).createDotnetVersion(),
             inputQuality
           );
 
@@ -226,7 +280,9 @@ describe('installer tests', () => {
           maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
           const dotnetInstaller = new installer.DotnetCoreInstaller(
-            inputVersion,
+            await new installer.DotnetVersionResolver(
+              inputVersion
+            ).createDotnetVersion(),
             inputQuality
           );
 
@@ -267,7 +323,9 @@ describe('installer tests', () => {
           maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
           const dotnetInstaller = new installer.DotnetCoreInstaller(
-            inputVersion,
+            await new installer.DotnetVersionResolver(
+              inputVersion
+            ).createDotnetVersion(),
             inputQuality
           );
 
@@ -305,7 +363,9 @@ describe('installer tests', () => {
           maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
           const dotnetInstaller = new installer.DotnetCoreInstaller(
-            inputVersion,
+            await new installer.DotnetVersionResolver(
+              inputVersion
+            ).createDotnetVersion(),
             inputQuality
           );
 

action.yml

@@ -9,6 +9,10 @@ inputs:
     description: 'Optional SDK version(s) to use. If not provided, will install global.json version when available. Examples: 2.2.104, 3.1, 3.1.x, 3.x, 6.0.2xx'
   dotnet-quality:
     description: 'Optional quality of the build. The possible values are: daily, signed, validated, preview, ga.'
+  runtime-only:
+    description: 'Optional input to install only the runtime, not the SDK.'
+    required: false
+    default: false
   global-json-file:
     description: 'Optional global.json location, if your global.json isn''t located in the root of the repo.'
   source-url: