Add logic for processing DOTNET_INSTALL_DIR environment variable (#332)

.gitattributes

@@ -1 +1 @@
-.licenses/** -diff linguist-generated=true
+.licenses/** -diff linguist-generated=true

.prettierrc.json

@@ -7,5 +7,6 @@
     "trailingComma": "none",
     "bracketSpacing": false,
     "arrowParens": "avoid",
-    "parser": "typescript"
+    "parser": "typescript",
+    "endOfLine": "auto"
   }

README.md

@@ -195,11 +195,18 @@ Some environment variables may be necessary for your particular case or to impro
 
 | **Env.variable**      | **Description** | **Default value** |
 | ----------- | ----------- | ----------- |
-| DOTNET_INSTALL_DIR      |Specifies a directory where .NET SDKs should be installed by the action|*isn't set*|
+| DOTNET_INSTALL_DIR      |Specifies a directory where .NET SDKs should be installed by the action.|*default value for each OS* |
 | DOTNET_NOLOGO      |Removes logo and telemetry message from first run of dotnet cli|*false*|
 | DOTNET_CLI_TELEMETRY_OPTOUT   |Opt-out of telemetry being sent to Microsoft|*false*|
 | DOTNET_MULTILEVEL_LOOKUP   |Configures whether the global install location is used as a fall-back|*true*|
 
+The default value of the `DOTNET_INSTALL_DIR` environment variable depends on the operation system which is used on a runner:
+| **Operation system**      | **Default value** |
+| ----------- | ----------- |
+| **Windows** | `C:\Program Files\dotnet` |
+| **Ubuntu** | `/usr/share/dotnet` |
+| **macOS** | `/Users/runner/.dotnet` |
+
 **Example usage**:
 ```yml
 build:

__tests__/authutil.test.ts

@@ -5,11 +5,7 @@ import path from 'path';
 const fakeSourcesDirForTesting = path.join(
   __dirname,
   'runner',
-  path.join(
-    Math.random()
-      .toString(36)
-      .substring(7)
-  ),
+  path.join(Math.random().toString(36).substring(7)),
   's'
 );
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-dotnet",
-  "version": "3.0.1",
+  "version": "3.0.2",
   "private": true,
   "description": "setup dotnet action",
   "main": "lib/setup-dotnet.js",
@@ -41,9 +41,9 @@
     "husky": "^8.0.1",
     "jest": "^27.2.5",
     "jest-circus": "^27.2.5",
-    "prettier": "^1.19.1",
+    "prettier": "^2.7.1",
     "ts-jest": "^27.0.5",
-    "typescript": "^3.9.7",
+    "typescript": "^4.8.4",
     "wget-improved": "^3.2.1"
   },
   "jest": {

src/installer.ts

@@ -6,6 +6,7 @@ import * as hc from '@actions/http-client';
 import {chmodSync} from 'fs';
 import {readdir} from 'fs/promises';
 import path from 'path';
+import os from 'os';
 import semver from 'semver';
 import {IS_LINUX, IS_WINDOWS} from './utils';
 import {QualityOptions} from './setup-dotnet';
@@ -112,40 +113,29 @@ export class DotnetVersionResolver {
 export class DotnetCoreInstaller {
   private version: string;
   private quality: QualityOptions;
-  private static readonly installationDirectoryWindows = path.join(
-    process.env['PROGRAMFILES'] + '',
-    'dotnet'
-  );
-  private static readonly installationDirectoryLinux = '/usr/share/dotnet';
-  private static readonly installationDirectoryMac = path.join(
-    process.env['HOME'] + '',
-    '.dotnet'
-  );
 
-  static addToPath() {
-    if (process.env['DOTNET_INSTALL_DIR']) {
-      core.addPath(process.env['DOTNET_INSTALL_DIR']);
-      core.exportVariable('DOTNET_ROOT', process.env['DOTNET_INSTALL_DIR']);
+  static {
+    const installationDirectoryWindows = path.join(
+      process.env['PROGRAMFILES'] + '',
+      'dotnet'
+    );
+    const installationDirectoryLinux = '/usr/share/dotnet';
+    const installationDirectoryMac = path.join(
+      process.env['HOME'] + '',
+      '.dotnet'
+    );
+    const dotnetInstallDir: string | undefined =
+      process.env['DOTNET_INSTALL_DIR'];
+    if (dotnetInstallDir) {
+      process.env['DOTNET_INSTALL_DIR'] =
+        this.convertInstallPathToAbsolute(dotnetInstallDir);
     } else {
       if (IS_WINDOWS) {
-        core.addPath(DotnetCoreInstaller.installationDirectoryWindows);
-        core.exportVariable(
-          'DOTNET_ROOT',
-          DotnetCoreInstaller.installationDirectoryWindows
-        );
-      } else if (IS_LINUX) {
-        core.addPath(DotnetCoreInstaller.installationDirectoryLinux);
-        core.exportVariable(
-          'DOTNET_ROOT',
-          DotnetCoreInstaller.installationDirectoryLinux
-        );
+        process.env['DOTNET_INSTALL_DIR'] = installationDirectoryWindows;
       } else {
-        // This is the default set in install-dotnet.sh
-        core.addPath(DotnetCoreInstaller.installationDirectoryMac);
-        core.exportVariable(
-          'DOTNET_ROOT',
-          DotnetCoreInstaller.installationDirectoryMac
-        );
+        process.env['DOTNET_INSTALL_DIR'] = IS_LINUX
+          ? installationDirectoryLinux
+          : installationDirectoryMac;
       }
     }
   }
@@ -155,6 +145,23 @@ export class DotnetCoreInstaller {
     this.quality = quality;
   }
 
+  private static convertInstallPathToAbsolute(installDir: string): string {
+    let transformedPath;
+    if (path.isAbsolute(installDir)) {
+      transformedPath = installDir;
+    } else {
+      transformedPath = installDir.startsWith('~')
+        ? path.join(os.homedir(), installDir.slice(1))
+        : (transformedPath = path.join(process.cwd(), installDir));
+    }
+    return path.normalize(transformedPath);
+  }
+
+  static addToPath() {
+    core.addPath(process.env['DOTNET_INSTALL_DIR']!);
+    core.exportVariable('DOTNET_ROOT', process.env['DOTNET_INSTALL_DIR']);
+  }
+
   private setQuality(
     dotnetVersion: DotnetVersion,
     scriptArguments: string[]
@@ -208,11 +215,6 @@ export class DotnetCoreInstaller {
         scriptArguments.push(`-ProxyBypassList ${process.env['no_proxy']}`);
       }
 
-      if (!process.env['DOTNET_INSTALL_DIR']) {
-        process.env['DOTNET_INSTALL_DIR'] =
-          DotnetCoreInstaller.installationDirectoryWindows;
-      }
-
       scriptPath =
         (await io.which('pwsh', false)) || (await io.which('powershell', true));
       scriptArguments = windowsDefaultOptions.concat(scriptArguments);
@@ -228,12 +230,6 @@ export class DotnetCoreInstaller {
       if (this.quality) {
         this.setQuality(dotnetVersion, scriptArguments);
       }
-
-      if (!process.env['DOTNET_INSTALL_DIR']) {
-        process.env['DOTNET_INSTALL_DIR'] = IS_LINUX
-          ? DotnetCoreInstaller.installationDirectoryLinux
-          : DotnetCoreInstaller.installationDirectoryMac;
-      }
     }
     // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
     const getExecOutputOptions = {
@@ -249,16 +245,11 @@ export class DotnetCoreInstaller {
       throw new Error(`Failed to install dotnet ${exitCode}. ${stdout}`);
     }
 
-    return this.outputDotnetVersion(
-      dotnetVersion.value,
-      process.env['DOTNET_INSTALL_DIR']
-    );
+    return this.outputDotnetVersion(dotnetVersion.value);
   }
 
-  private async outputDotnetVersion(
-    version,
-    installationPath
-  ): Promise<string> {
+  private async outputDotnetVersion(version): Promise<string> {
+    const installationPath = process.env['DOTNET_INSTALL_DIR']!;
     let versionsOnRunner: string[] = await readdir(
       path.join(installationPath.replace(/'/g, ''), 'sdk')
     );

tsconfig.json

@@ -35,6 +35,7 @@
     // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
 
     /* Additional Checks */
+    "useUnknownInCatchVariables": false,               /* Type catch clause variables as 'unknown' instead of 'any'. */
     // "noUnusedLocals": true,                /* Report errors on unused locals. */
     // "noUnusedParameters": true,            /* Report errors on unused parameters. */
     // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */