Release v1.0.6

.eslintrc.json

@@ -0,0 +1,19 @@
+{
+  "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"
+  }
+}

.github/workflows/ci.yml

@@ -13,6 +13,7 @@ jobs:
 
       - uses: actions/checkout@v1
       - run: npm ci
+      - run: npm run lint
       - run: npm run build
       - run: npm run test
 

CHANGELOG.md

@@ -4,6 +4,12 @@ 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).
 
+## Unreleased
+
+### Added
+
+- Pass `allow-downgrade` flag to `rustup` if `nightly` toolchain with components requested
+
 ## [1.0.5] - 2020-01-26
 
 ### Fixed

README.md

@@ -1,11 +1,27 @@
 # `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://github.com/rust-lang/rustup.rs#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.
 
-Optionally it can set installed toolchain as a default and as an override for current directory.
+It supports additional targets, components and profiles and handles all
+these small papercuts from 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
 
@@ -25,9 +41,10 @@ jobs:
         with:
             toolchain: nightly
             override: true
+            components: rustfmt, clippy
 
       # `cargo check` command here will use installed `nightly`
-      # as it set as an "override" for current directory
+      # as it is set as an "override" for current directory
 
       - name: Run cargo check
         uses: actions-rs/cargo@v1
@@ -115,19 +132,38 @@ to install the minimal set of `nightly` toolchain components with the `rustfmt`
     components: rustfmt, clippy
 ```
 
-Same to the `profile` input, if the installed `rustup` does not supports "components",
+In case if `nightly` toolchain is requested and one of the components is missing in
+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
 
 This Action supports [toolchain files](https://github.com/rust-lang/rustup#the-toolchain-file),
 so it is not necessary to use `toolchain` input anymore.
 
-Input has higher priority, so if you are want to use toolchain file, you need to remove the input from the workflow file.
+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
 
-If neither `toolchain` input or `rust-toolchain` file are provided, Action execution will fail.
+Any contributions are welcomed!
 
-## Notes
+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).
 
-As `rustup` is not installed by default for [macOS environments](https://help.github.com/en/articles/virtual-environments-for-github-actions)
-at the moment (2019-09-13), this Action will try its best to install it before any other operations.
+You can also support author by funding the ongoing project work,
+see [Sponsoring](https://actions-rs.github.io/#sponsoring).

__tests__/args.test.ts

@@ -1,65 +1,74 @@
-import {toolchain_args} from "../src/args";
-import {morph} from "mock-env"
-import {sync as tempWriteSync} from "temp-write"
+import { getToolchainArgs } from "../src/args";
+import { morph } from "mock-env";
+import { sync as tempWriteSync } from "temp-write";
 
-describe('actions-rs/toolchain', () => {
-    it('Parses action input into toolchain options', async () => {
-        let args = morph(() => {
-            return toolchain_args("./rust-toolchain");
-        }, {
-            'INPUT_TOOLCHAIN': 'nightly-2019-04-20',
-            'INPUT_DEFAULT': 'false',
-            'INPUT_OVERRIDE': 'true'
-        });
+describe("actions-rs/toolchain", () => {
+    it("Parses action input into toolchain options", () => {
+        const args = morph(
+            () => {
+                return getToolchainArgs("./rust-toolchain");
+            },
+            {
+                INPUT_TOOLCHAIN: "nightly-2019-04-20",
+                INPUT_DEFAULT: "false",
+                INPUT_OVERRIDE: "true",
+            }
+        );
 
-        expect(args.name).toBe('nightly-2019-04-20');
+        expect(args.name).toBe("nightly-2019-04-20");
         expect(args.default).toBe(false);
         expect(args.override).toBe(true);
     });
 
-    it('uses input variable if rust-toolchain file does not exist', function () {
-        let args = morph(() => {
-            return toolchain_args("./rust-toolchain");
-        }, {
-            'INPUT_TOOLCHAIN': 'nightly',
-        });
+    it("uses input variable if rust-toolchain file does not exist", function () {
+        const args = morph(
+            () => {
+                return getToolchainArgs("./rust-toolchain");
+            },
+            {
+                INPUT_TOOLCHAIN: "nightly",
+            }
+        );
 
-        expect(args.name).toBe("nightly")
+        expect(args.name).toBe("nightly");
     });
 
-    it('toolchain input is required if rust-toolchain does not exist', function () {
-        expect(() => toolchain_args("./rust-toolchain")).toThrowError()
+    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 () {
-        let rustToolchainFile = tempWriteSync("1.39.0");
+    it("prioritizes rust-toolchain file over input variable", function () {
+        const rustToolchainFile = tempWriteSync("1.39.0");
 
-        let args = morph(() => {
-            return toolchain_args(rustToolchainFile);
-        }, {
-            'INPUT_TOOLCHAIN': 'nightly',
-        });
+        const args = morph(
+            () => {
+                return getToolchainArgs(rustToolchainFile);
+            },
+            {
+                INPUT_TOOLCHAIN: "nightly",
+            }
+        );
 
-        expect(args.name).toBe("nightly")
+        expect(args.name).toBe("nightly");
     });
 
-    it('uses rust-toolchain file if input does not exist', function () {
-        let rustToolchainFile = tempWriteSync("1.39.0");
+    it("uses rust-toolchain file if input does not exist", function () {
+        const rustToolchainFile = tempWriteSync("1.39.0");
 
-        let args = morph(() => {
-            return toolchain_args(rustToolchainFile);
+        const args = morph(() => {
+            return getToolchainArgs(rustToolchainFile);
         }, {});
 
-        expect(args.name).toBe("1.39.0")
+        expect(args.name).toBe("1.39.0");
     });
 
-    it('trims content of the override file', function () {
-        let rustToolchainFile = tempWriteSync("\n     1.39.0\n\n\n\n");
+    it("trims content of the override file", function () {
+        const rustToolchainFile = tempWriteSync("\n     1.39.0\n\n\n\n");
 
-        let args = morph(() => {
-            return toolchain_args(rustToolchainFile);
+        const args = morph(() => {
+            return getToolchainArgs(rustToolchainFile);
         }, {});
 
-        expect(args.name).toBe("1.39.0")
+        expect(args.name).toBe("1.39.0");
     });
 });

jest.config.json

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