.eslintrc.json

@@ -1,19 +0,0 @@
-{
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "project": "./tsconfig.eslint.json"
-  },
-  "plugins": ["@typescript-eslint"],
-  "extends": [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/eslint-recommended",
-    "plugin:@typescript-eslint/recommended-requiring-type-checking",
-    "plugin:@typescript-eslint/recommended",
-    "plugin:prettier/recommended",
-    "prettier",
-    "prettier/@typescript-eslint"
-  ],
-  "rules": {
-    "@typescript-eslint/ban-ts-ignore": "off"
-  }
-}

.githooks/pre-commit

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-# This commit hook checks whether we ran `npm run build` when committed TypeScript files.
-# For GitHub actions to work, we need to check the compiled JavaScript into VCS.
-#
-# This script can yield false positives in cases where you only make stylistic changes to the TypeScript code that don't result in changes to the compiled JavaScript code.
-# It is your responsibility as a developer to then commit the changes with `git commit --no-verify` and simply skip this commit hook.
-
-TS_FILES=$(git diff --staged --name-only | grep -c '\.ts$')
-DIST_MODIFIED=$(git diff --staged --name-only | grep -c dist/index.js)
-
-if [ $TS_FILES -gt 0 ] && [ $DIST_MODIFIED -eq 0 ] ; then
-    echo "You modified TypeScript files but apparently did not run 'npm run build'".
-    exit 1;
-fi

.github/FUNDING.yml

@@ -0,0 +1 @@
+custom: https://svartalf.info/donate/

.github/workflows/ci.yml

@@ -1,9 +1,9 @@
 name: Continuous integration
 
-on: [push, pull_request]
+on: [push]
 
 jobs:
-  test:
+  check_pr:
     runs-on: ubuntu-latest
     steps:
       - name: Create npm configuration
@@ -13,39 +13,21 @@ jobs:
 
       - uses: actions/checkout@v1
       - run: npm ci
-# Temporary disabling in order to release urgent fix
-#      - run: npm run lint
       - run: npm run build
       - run: npm run test
 
   install_stable:
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
-    strategy:
+    needs: check_pr
-      matrix:
-        os:
-          - ubuntu-latest
-          - macOS-latest
-          - windows-latest
     steps:
       - uses: actions/checkout@v1
-      - id: toolchain
+      - uses: ./
-        uses: ./
         with:
           toolchain: stable
-      - name: Test toolchain outputs
-        env:
-          RUSTC: ${{ steps.toolchain.outputs.rustc }}
-          RUSTC_HASH: ${{ steps.toolchain.outputs.rustc_hash }}
-          CARGO: ${{ steps.toolchain.outputs.cargo }}
-          RUSTUP: ${{ steps.toolchain.outputs.rustup }}
-        run: |
-          echo $RUSTC
-          echo $RUSTC_HASH
-          echo $CARGO
-          echo $RUSTUP
 
   install_nightly:
     runs-on: ubuntu-latest
+    needs: check_pr
     steps:
       - uses: actions/checkout@v1
       - uses: ./
@@ -57,6 +39,7 @@ jobs:
   install_stable_in_docker:
     runs-on: ubuntu-latest
     container: ubuntu:latest  # Docker image, not the GitHub Actions VM
+    needs: check_pr
     steps:
       # `rustup` will need `curl` or `wget` later
       - run: apt-get update && apt-get install -y curl
@@ -64,10 +47,3 @@ jobs:
       - uses: ./
         with:
           toolchain: stable
-
-  install_stable_through_rust_toolchain_file:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - run: echo "stable" > ./rust-toolchain
-      - uses: ./

.gitignore

@@ -89,6 +89,3 @@ typings/
 
 # DynamoDB Local files
 .dynamodb/
-
-# IntelliJ IDEs
-.idea

CHANGELOG.md

@@ -4,26 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [1.0.6] - 2020-03-24
+### [1.0.3] - 2019-10-19
-
-### Added
-
-- Pass `allow-downgrade` flag to `rustup` if `nightly` toolchain with components requested
-
-## [1.0.5] - 2020-01-26
-
-### Fixed
-
-- `rustup` version parser does not fail Action execution on `macOS-latest` VM images anymore
-
-## [1.0.4] - 2020-01-26
-
-### Added
-
-- Support for the `rust-toolchain` file: If the toolchain input is not given, we will try and install the version specified in the `rust-toolchain` file.
-- Action outputs with `rustc`, `cargo` and `rustup` versions installed
-
-## [1.0.3] - 2019-10-19
 
 ### Added
 

README.md

@@ -1,27 +1,11 @@
 # `rust-toolchain` Action
 
-[![Sponsoring](https://img.shields.io/badge/Support%20it-Say%20%22Thank%20you!%22-blue)](https://actions-rs.github.io/#sponsoring)
 ![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)
 [![Gitter](https://badges.gitter.im/actions-rs/community.svg)](https://gitter.im/actions-rs/community)
-![Continuous integration](https://github.com/actions-rs/toolchain/workflows/Continuous%20integration/badge.svg)
-![Dependabot enabled](https://api.dependabot.com/badges/status?host=github&repo=actions-rs/toolchain)
 
-This GitHub Action installs [Rust toolchain](https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification)
+This GitHub Action installs [Rust toolchain](https://github.com/rust-lang/rustup.rs#toolchain-specification).
-with [rustup](https://github.com/rust-lang/rustup) help.
 
-It supports additional targets, components and profiles and handles all
+Optionally it can set installed toolchain as a default and as an override for current directory.
-these small papercuts for you.
-
-**Table of Contents**
-
-* [Example workflow](#example-workflow)
-* [Inputs](#inputs)
-* [Outputs](#outputs)
-* [Profiles](#profiles)
-* [Components](#components)
-* [The toolchain file](#the-toolchain-file)
-* [License](#license)
-* [Contribute and support](#contribute-and-support)
 
 ## Example workflow
 
@@ -35,16 +19,15 @@ jobs:
     name: Rust project
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@master
       - name: Install latest nightly
         uses: actions-rs/toolchain@v1
         with:
             toolchain: nightly
             override: true
-            components: rustfmt, clippy
 
       # `cargo check` command here will use installed `nightly`
-      # as it is set as an "override" for current directory
+      # as it set as an "override" for current directory
 
       - name: Run cargo check
         uses: actions-rs/cargo@v1
@@ -58,30 +41,13 @@ See [additional recipes here](https://github.com/actions-rs/meta).
 
 | Name         | Required | Description                                                                                                                                         | Type   | Default |
 | ------------ | :------: | ----------------------------------------------------------------------------------------------------------------------------------------------------| ------ | --------|
-| `toolchain`  |          | [Toolchain](https://github.com/rust-lang/rustup.rs#toolchain-specification) name to use, ex. `stable`, `nightly`, `nightly-2019-04-20`, or `1.32.0` | string | stable  |
+| `toolchain`  | ✓        | [Toolchain](https://github.com/rust-lang/rustup.rs#toolchain-specification) name to use, ex. `stable`, `nightly`, `nightly-2019-04-20`, or `1.32.0` | string |         |
 | `target`     |          | Additionally install specified target for this toolchain, ex. `x86_64-apple-darwin`                                                                 | string |         |
 | `default`    |          | Set installed toolchain as a default toolchain                                                                                                      | bool   | false   |
 | `override`   |          | Set installed toolchain as an override for the current directory                                                                                    | bool   | false   |
-| `profile`    |          | Execute `rustup set profile {value}` before installing the toolchain, ex. `minimal`                                                                 | string | default |
+| `profile`    |          | Execute `rustup set profile {value}` before installing the toolchain, ex. `minimal`                                                                 | string |         |
 | `components` |          | Comma-separated list of the additional components to install, ex. `clippy, rustfmt`                                                                 | string |         |
 
-Note: since `v1.0.4` version, `toolchain` input is not marked as required
-in order to support toolchain files. See the details [below](#the-toolchain-file).
-
-## Outputs
-
-Installed `rustc`, `cargo` and `rustup` versions can be fetched from the Action outputs:
-
-| Name         | Description           | Example                         |
-| ------------ | --------------------- | ------------------------------- |
-| `rustc`      | Rustc version         | `1.40.0 (73528e339 2019-12-16)` |
-| `rustc_hash` | Rustc version hash    | `73528e339`                     |
-| `cargo`      | Cargo version         | `1.40.0 (bc8e4c8be 2019-11-22)` |
-| `rustup`     | rustup version        | `1.21.1 (7832b2ebe 2019-12-20)` |
-
-Note: `rustc_hash` output value can be used with [actions/cache](https://github.com/actions/cache) Action
-to store cache for different Rust versions, as it is unique across different Rust versions and builds (including `nightly`).
-
 ## Profiles
 
 This Action supports rustup [profiles](https://blog.rust-lang.org/2019/10/15/Rustup-1.20.0.html#profiles),
@@ -115,7 +81,7 @@ and in combination with the [profiles](#profiles) input it allows to install onl
   uses: actions-rs/toolchain@v1
   with:
     profile: minimal
-    toolchain: stable
+    toolchain: nightly
     components: rustfmt, clippy
 ```
 
@@ -132,38 +98,10 @@ to install the minimal set of `nightly` toolchain components with the `rustfmt`
     components: rustfmt, clippy
 ```
 
-In case if `nightly` toolchain is requested and one of the components is missing in
+Same to the `profile` input, if the installed `rustup` does not supports "components",
-latest `nightly` release, this Action will attempt the downgrade till it find
-the most recent `nightly` with all components needed.\
-Note that this behavior will work only if the following two conditions apply:
-
- 1. `toolchain` input is `nightly` exactly.
- 2. At least one component is provided in `components` input.
-
-Same to the `profile` input, if installed `rustup` does not supports "components",
 it will be automatically upgraded by this Action.
 
-## The toolchain file
+## Notes
 
-This Action supports [toolchain files](https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file),
+As `rustup` is not installed by default for [macOS environments](https://help.github.com/en/articles/virtual-environments-for-github-actions)
-so it is not necessary to use `toolchain` input anymore.
+at the moment (2019-09-13), this Action will try its best to install it before any other operations.
-
-Input has higher priority, so if you are want to use toolchain file,
-you need to remove the input from the workflow file.
-
-If neither `toolchain` input or `rust-toolchain` file are provided,
-Action execution will fail.
-
-## License
-
-This Action is distributed under the terms of the MIT license, see [LICENSE](https://github.com/actions-rs/toolchain/blob/master/LICENSE) for details.
-
-## Contribute and support
-
-Any contributions are welcomed!
-
-If you want to report a bug or have a feature request,
-check the [Contributing guide](https://github.com/actions-rs/.github/blob/master/CONTRIBUTING.md).
-
-You can also support author by funding the ongoing project work,
-see [Sponsoring](https://actions-rs.github.io/#sponsoring).

__tests__/args.test.ts

@@ -1,74 +1,22 @@
-import { getToolchainArgs } from "../src/args";
+import * as args from '../src/args'
-import { morph } from "mock-env";
-import { sync as tempWriteSync } from "temp-write";
 
-describe("actions-rs/toolchain", () => {
+const testEnvVars = {
-    it("Parses action input into toolchain options", () => {
+    INPUT_TOOLCHAIN: 'nightly-2019-04-20',
-        const args = morph(
+    INPUT_DEFAULT: 'false',
-            () => {
+    INPUT_OVERRIDE: 'true'
-                return getToolchainArgs("./rust-toolchain");
+}
-            },
-            {
-                INPUT_TOOLCHAIN: "nightly-2019-04-20",
-                INPUT_DEFAULT: "false",
-                INPUT_OVERRIDE: "true",
-            }
-        );
 
-        expect(args.name).toBe("nightly-2019-04-20");
+describe('actions-rs/toolchain', () => {
-        expect(args.default).toBe(false);
+    beforeEach(() => {
-        expect(args.override).toBe(true);
+    for (const key in testEnvVars)
-    });
+        process.env[key] = testEnvVars[key as keyof typeof testEnvVars]
+    })
 
-    it("uses input variable if rust-toolchain file does not exist", function () {
+    it('Parses action input into toolchain options', async () => {
-        const args = morph(
+        const result = args.toolchain_args();
-            () => {
-                return getToolchainArgs("./rust-toolchain");
-            },
-            {
-                INPUT_TOOLCHAIN: "nightly",
-            }
-        );
 
-        expect(args.name).toBe("nightly");
+        expect(result.name).toBe('nightly-2019-04-20');
-    });
+        expect(result.default).toBe(false);
-
+        expect(result.override).toBe(true);
-    it("toolchain input is required if rust-toolchain does not exist", function () {
-        expect(() => getToolchainArgs("./rust-toolchain")).toThrowError();
-    });
-
-    it("prioritizes rust-toolchain file over input variable", function () {
-        const rustToolchainFile = tempWriteSync("1.39.0");
-
-        const args = morph(
-            () => {
-                return getToolchainArgs(rustToolchainFile);
-            },
-            {
-                INPUT_TOOLCHAIN: "nightly",
-            }
-        );
-
-        expect(args.name).toBe("nightly");
-    });
-
-    it("uses rust-toolchain file if input does not exist", function () {
-        const rustToolchainFile = tempWriteSync("1.39.0");
-
-        const args = morph(() => {
-            return getToolchainArgs(rustToolchainFile);
-        }, {});
-
-        expect(args.name).toBe("1.39.0");
-    });
-
-    it("trims content of the override file", function () {
-        const rustToolchainFile = tempWriteSync("\n     1.39.0\n\n\n\n");
-
-        const args = morph(() => {
-            return getToolchainArgs(rustToolchainFile);
-        }, {});
-
-        expect(args.name).toBe("1.39.0");
     });
 });

action.yml

@@ -9,10 +9,7 @@ inputs:
     description: |
       Rust toolchain name.
 
-      See https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification
+      See https://github.com/rust-lang/rustup.rs#toolchain-specification
-
-      If this is not given, the action will try and install the version specified in the `rust-toolchain` file.
-    required: false
   target:
     description: Target triple to install for this toolchain
     required: false
@@ -29,16 +26,6 @@ inputs:
     description: Comma-separated list of components to be additionally installed for a new toolchain
     required: false
 
-outputs:
-  rustc:
-    description: Installed Rustc version
-  rustc_hash:
-    description: Installed Rustc version hash, can be used for caching purposes
-  cargo:
-    description: Installed Cargo version
-  rustup:
-    description: Installed rustup version
-
 runs:
   using: 'node12'
   main: 'dist/index.js'

jest.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+  clearMocks: true,
+  moduleFileExtensions: ['js', 'ts'],
+  testEnvironment: 'node',
+  testMatch: ['**/*.test.ts'],
+  testRunner: 'jest-circus/runner',
+  transform: {
+    '^.+\\.ts$': 'ts-jest'
+  },
+  verbose: true
+}

jest.config.json

@@ -1,11 +0,0 @@
-{
-  "clearMocks": true,
-  "moduleFileExtensions": ["js", "ts"],
-  "testEnvironment": "node",
-  "testMatch": ["**/*.test.ts"],
-  "testRunner": "jest-circus/runner",
-  "transform": {
-    "^.+\\.ts$": "ts-jest"
-  },
-  "verbose": true
-}

package.json

@@ -1,6 +1,6 @@
 {
     "name": "rust-toolchain",
-    "version": "1.0.7",
+    "version": "1.0.3",
     "private": false,
     "description": "Install the Rust toolchain",
     "main": "lib/main.js",
@@ -9,12 +9,9 @@
         "test": "__tests__"
     },
     "scripts": {
-        "build": "rm -rf ./dist/* && ncc build src/main.ts --minify",
+        "build": "ncc build src/main.ts --minify",
-        "format": "prettier --write 'src/**/*.ts' '__tests__/**/*.ts'",
+        "watch": "ncc build src/main.ts --watch",
-        "lint": "tsc --noEmit && eslint 'src/**/*.ts' '__tests__/**/*.ts'",
+        "test": "jest"
-        "watch": "rm -rf ./dist/* && ncc build src/main.ts --watch",
-        "test": "jest -c jest.config.json",
-        "pretest": "git config core.hooksPath .githooks"
     },
     "repository": {
         "type": "git",
@@ -32,27 +29,18 @@
         "url": "https://github.com/actions-rs/toolchain/issues"
     },
     "dependencies": {
-        "@actions-rs/core": "^0.1.6",
+        "@actions/core": "^1.1.1",
-        "@actions/core": "^1.2.6",
+        "@actions/exec": "^1.0.0",
-        "@actions/exec": "^1.0.4",
+        "@actions/io": "^1.0.0",
-        "@actions/io": "^1.0.2"
+        "@actions-rs/core": "^0.0.7"
     },
     "devDependencies": {
-        "@types/jest": "^26.0.15",
+        "@types/jest": "^24.0.19",
-        "@types/node": "^14.14.7",
+        "@types/node": "^12.11.1",
-        "@typescript-eslint/eslint-plugin": "^4.8.1",
+        "@zeit/ncc": "^0.20.5",
-        "@typescript-eslint/parser": "^4.8.1",
+        "jest": "^24.9.0",
-        "@zeit/ncc": "^0.22.3",
+        "jest-circus": "^24.9.0",
-        "eslint": "^7.13.0",
+        "ts-jest": "^24.1.0",
-        "eslint-config-prettier": "^6.15.0",
+        "typescript": "^3.6.4"
-        "eslint-plugin-prettier": "^3.1.4",
-        "jest": "^26.6.3",
-        "jest-circus": "^26.6.3",
-        "mock-env": "^0.2.0",
-        "npm-check-updates": "^10.2.1",
-        "prettier": "^2.1.2",
-        "temp-write": "^4.0.0",
-        "ts-jest": "^26.4.4",
-        "typescript": "^4.0.5"
     }
 }

src/args.ts

@@ -1,52 +1,26 @@
-import { input } from "@actions-rs/core";
+import * as core from '@actions/core';
-import { debug } from "@actions/core";
+import {input} from '@actions-rs/core';
-import { existsSync, readFileSync } from "fs";
 
 export interface ToolchainOptions {
-    name: string;
+    name: string,
-    target: string | undefined;
+    target: string | undefined,
-    default: boolean;
+    default: boolean,
-    override: boolean;
+    override: boolean,
-    profile: string | undefined;
+    profile: string | undefined,
-    components: string[] | undefined;
+    components: string[] | undefined,
 }
 
-function determineToolchain(overrideFile: string): string {
+export function toolchain_args(): ToolchainOptions {
-    const toolchainInput = input.getInput("toolchain", { required: false });
+    let components: string[] | undefined = input.getInputList('components');
-
-    if (toolchainInput) {
-        debug(`using toolchain from input: ${toolchainInput}`);
-        return toolchainInput;
-    }
-
-    if (!existsSync(overrideFile)) {
-        throw new Error(
-            "toolchain input was not given and repository does not have a rust-toolchain file"
-        );
-    }
-
-    const rustToolchainFile = readFileSync(overrideFile, {
-        encoding: "utf-8",
-        flag: "r",
-    }).trim();
-
-    debug(`using toolchain from rust-toolchain file: ${rustToolchainFile}`);
-
-    return rustToolchainFile;
-}
-
-export function getToolchainArgs(overrideFile: string): ToolchainOptions {
-    let components: string[] | undefined = input.getInputList("components");
     if (components && components.length === 0) {
         components = undefined;
     }
-
     return {
-        name: determineToolchain(overrideFile),
+        name: input.getInput('toolchain', {required: true}),
-        target: input.getInput("target") || undefined,
+        target: input.getInput('target') || undefined,
-        default: input.getInputBool("default"),
+        default: input.getInputBool('default'),
-        override: input.getInputBool("override"),
+        override: input.getInputBool('override'),
-        profile: input.getInput("profile") || undefined,
+        profile: input.getInput('profile') || undefined,
         components: components,
     };
 }

src/main.ts

@@ -1,27 +1,24 @@
-import * as core from "@actions/core";
+import * as core from '@actions/core';
-import path from "path";
+import * as exec from '@actions/exec';
+import * as io from '@actions/io';
 
-import * as args from "./args";
+import * as args from './args';
-import * as versions from "./versions";
+import {RustUp, ToolchainOptions} from '@actions-rs/core';
-import { RustUp, ToolchainOptions } from "@actions-rs/core";
 
-async function run(): Promise<void> {
+async function run() {
-    // we use path.join to make sure this works on Windows, Linux and MacOS
+    const opts = args.toolchain_args();
-    const toolchainOverridePath = path.join(process.cwd(), "rust-toolchain");
-
-    const opts = args.getToolchainArgs(toolchainOverridePath);
     const rustup = await RustUp.getOrInstall();
-    await rustup.call(["show"]);
+    await rustup.call(['show']);
 
     let shouldSelfUpdate = false;
-    if (opts.profile && !(await rustup.supportProfiles())) {
+    if (opts.profile && !await rustup.supportProfiles()) {
         shouldSelfUpdate = true;
     }
-    if (opts.components && !(await rustup.supportComponents())) {
+    if (opts.components && !await rustup.supportComponents()) {
         shouldSelfUpdate = true;
     }
     if (shouldSelfUpdate) {
-        core.startGroup("Updating rustup");
+        core.startGroup('Updating rustup');
         try {
             await rustup.selfUpdate();
         } finally {
@@ -30,11 +27,11 @@ async function run(): Promise<void> {
     }
 
     if (opts.profile) {
-        // @ts-ignore: TS2345
+        //@ts-ignore
         await rustup.setProfile(opts.profile);
     }
 
-    const installOptions: ToolchainOptions = {
+    let installOptions: ToolchainOptions = {
         default: opts.default,
         override: opts.override,
     };
@@ -46,47 +43,14 @@ async function run(): Promise<void> {
     if (shouldSelfUpdate) {
         installOptions.noSelfUpdate = true;
     }
-
-    // Extra funny case.
-    // Due to `rustup` issue (https://github.com/rust-lang/rustup/issues/2146)
-    // right now installing `nightly` toolchain with extra components might fail
-    // if that specific `nightly` version does not have this component
-    // available.
-    //
-    // See https://github.com/actions-rs/toolchain/issues/53 also.
-    //
-    // By default `rustup` does not downgrade, as it does when you are
-    // updating already installed `nightly`, so we need to pass the
-    // corresponding flag manually.
-    //
-    // We are doing it only if both following conditions apply:
-    //
-    //   1. Requested toolchain is `"nightly"` (exact string match).
-    //   2. At least one component is requested.
-    //
-    // All other cases are not triggering automatic downgrade,
-    // for example, installing specific nightly version
-    // as in `"nightly-2020-03-20"` or `"stable"`.
-    //
-    // Motivation is that users probably want the latest one nightly
-    // with rustfmt and clippy (miri, etc) and they don't really care
-    // about what exact nightly it is.
-    // In case if it's not the nightly at all or it is a some specific
-    // nightly version, they know what they are doing.
-    if (opts.name == "nightly" && opts.components) {
-        installOptions.allowDowngrade = true;
-    }
-
     await rustup.installToolchain(opts.name, installOptions);
 
     if (opts.target) {
         await rustup.addTarget(opts.target, opts.name);
     }
-
-    await versions.gatherInstalledVersions();
 }
 
-async function main(): Promise<void> {
+async function main() {
     try {
         await run();
     } catch (error) {

src/versions.ts

@@ -1,114 +0,0 @@
-import * as exec from "@actions/exec";
-import * as core from "@actions/core";
-
-interface Version {
-    long: string;
-    hash: string;
-}
-
-/**
- * Try to parse the version parts and return them.
- *
- * It is important to note that some components are not providing
- * all the expected information, ex. `rustup` on `macOS-latest` VM image
- * does not has the hash in the version string,
- * so this function might throw an error.
- *
- * As a fallback, `parseShort` function can be used.
- */
-function parseFull(stdout: string): Version {
-    const regex = /\S+\s((\S+)\s\((\S+)\s(\S+)\))/m;
-    stdout = stdout.trim();
-    const matches = regex.exec(stdout);
-    if (matches == null) {
-        throw new Error(`Unable to parse version from the "${stdout}" string`);
-    }
-
-    return {
-        long: matches[1],
-        hash: matches[3],
-    };
-}
-
-function parseShort(stdout: string): string {
-    const regex = /\S+\s(.+)/m;
-    stdout = stdout.trim();
-    const matches = regex.exec(stdout);
-    if (matches == null) {
-        core.warning(`Unable to determine version from the "${stdout}" string`);
-        return "";
-    } else {
-        return matches[1];
-    }
-}
-
-async function getStdout(
-    exe: string,
-    args: string[],
-    options?: {}
-): Promise<string> {
-    let stdout = "";
-    const resOptions = Object.assign({}, options, {
-        listeners: {
-            stdout: (buffer: Buffer): void => {
-                stdout += buffer.toString();
-            },
-        },
-    });
-
-    await exec.exec(exe, args, resOptions);
-
-    return stdout;
-}
-
-/**
- * Fetch currently used `rustc` version
- */
-async function rustc(): Promise<void> {
-    const stdout = await getStdout("rustc", ["-V"]);
-    try {
-        const version = parseFull(stdout);
-
-        core.setOutput("rustc", version.long);
-        core.setOutput("rustc_hash", version.hash);
-    } catch (e) {
-        core.warning(e);
-        core.setOutput("rustc", parseShort(stdout));
-    }
-}
-
-/**
- * Fetch currently used `cargo` version
- */
-async function cargo(): Promise<void> {
-    const stdout = await getStdout("cargo", ["-V"]);
-    try {
-        const version = parseFull(stdout);
-
-        core.setOutput("cargo", version.long);
-    } catch (e) {
-        core.setOutput("cargo", parseShort(stdout));
-    }
-}
-
-async function rustup(): Promise<void> {
-    const stdout = await getStdout("rustup", ["-V"]);
-    try {
-        const version = parseFull(stdout);
-        core.setOutput("rustup", version.long);
-    } catch (e) {
-        core.setOutput("rustup", parseShort(stdout));
-    }
-}
-
-export async function gatherInstalledVersions(): Promise<void> {
-    try {
-        core.startGroup("Gathering installed versions");
-
-        await rustc();
-        await cargo();
-        await rustup();
-    } finally {
-        core.endGroup();
-    }
-}

tsconfig.eslint.json

@@ -1,7 +0,0 @@
-{
-    "extends": "./tsconfig.json",
-    "include": [
-        "src/**/*.ts",
-        "__tests__/**/*.ts"
-    ]
-}

tsconfig.json

@@ -1,32 +1,63 @@
 {
   "compilerOptions": {
-        "allowJs": false,
+    /* Basic Options */
-        "checkJs": false,
+    // "incremental": true,                   /* Enable incremental compilation */
-        "esModuleInterop": true,
+    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
-        "forceConsistentCasingInFileNames": true,
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
-        "module": "commonjs",
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-        "moduleResolution": "node",
+    // "checkJs": true,                       /* Report errors in .js files. */
-        "newLine": "LF",
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-        "noEmitOnError": true,
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-        "noErrorTruncation": true,
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
-        "noFallthroughCasesInSwitch": true,
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
-        "noImplicitAny": true,
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
-        "noImplicitReturns": true,
+    "outDir": "./lib",                        /* Redirect output structure to the directory. */
-        "noImplicitThis": true,
+    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-        "noUnusedLocals": true,
+    // "composite": true,                     /* Enable project compilation */
-        "noUnusedParameters": true,
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
-        "outDir": "dist",
+    // "removeComments": true,                /* Do not emit comments to output. */
-        "pretty": true,
+    // "noEmit": true,                        /* Do not emit outputs. */
-        "removeComments": true,
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-        "resolveJsonModule": true,
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-        "strict": true,
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
-        "suppressImplicitAnyIndexErrors": false,
+
-        "target": "es2018",
+    /* Strict Type-Checking Options */
-        "declaration": false,
+    "strict": true,                           /* Enable all strict type-checking options. */
-        "sourceMap": false,
+    "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-        "typeRoots": ["./types", "./node_modules/@types"]
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "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. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
   },
-    "include": [
+  "exclude": ["node_modules", "**/*.test.ts"]
-        "src/**/*.ts"
-    ]
 }

types/mock-env/index.d.ts

@@ -1,7 +0,0 @@
-declare module "mock-env" {
-    function morph<T>(
-        callback: () => T,
-        vars: object,
-        toRemove?: string[]
-    ): any;
-}