Support toml rust-toolchain & working-directory

Closes #126

.eslintignore

@@ -0,0 +1,2 @@
+node_modules
+dist

.github/workflows/ci.yml

@@ -13,8 +13,7 @@ jobs:
 
       - uses: actions/checkout@v1
       - run: npm ci
-# Temporary disabling in order to release urgent fix
-#      - run: npm run lint
+      - run: npm run lint
       - run: npm run build
       - run: npm run test
 

.gitignore

@@ -92,3 +92,5 @@ typings/
 
 # IntelliJ IDEs
 .idea
+
+.npmrc

.prettierignore

@@ -0,0 +1,3 @@
+# Ignore artifacts:
+node_modules
+dist

.prettierrc.json

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

CHANGELOG.md

@@ -1,4 +1,5 @@
 # Changelog
+
 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/),

README.md

@@ -14,14 +14,14 @@ 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](#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
 
@@ -57,7 +57,7 @@ See [additional recipes here](https://github.com/actions-rs/meta).
 ## Inputs
 
 | 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  |
 | `target`     |          | Additionally install specified target for this toolchain, ex. `x86_64-apple-darwin`                                                                 | string |         |
 | `default`    |          | Set installed toolchain as a default toolchain                                                                                                      | bool   | false   |
@@ -73,7 +73,7 @@ in order to support toolchain files. See the details [below](#the-toolchain-file
 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)` |
@@ -137,8 +137,8 @@ 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.
+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.

__tests__/args.test.ts

@@ -62,6 +62,37 @@ describe("actions-rs/toolchain", () => {
         expect(args.name).toBe("1.39.0");
     });
 
+    it("uses new style rust-toolchain file if input does not exist", function () {
+        const rustToolchainFile = tempWriteSync(
+            '[toolchain]\nchannel = "1.51.0"\ncomponents = [ "rustfmt", "clippy" ]\nprofile = "minimal"\ntargets = [ "wasm32-unknown-unknown", "thumbv2-none-eabi" ]'
+        );
+
+        const args = morph(() => {
+            return getToolchainArgs(rustToolchainFile);
+        }, {});
+
+        expect(args.name).toBe("1.51.0");
+        expect(args.components).toStrictEqual(["rustfmt", "clippy"]);
+        expect(args.profile).toBe("minimal");
+        expect(args.target).toBe("wasm32-unknown-unknown");
+    });
+
+    it("uses new style rust-toolchain file with toml ending if input and rust-toolchain file does not exist", function () {
+        const rustToolchainFile = tempWriteSync(
+            '[toolchain]\nchannel = "1.51.0"\ncomponents = [ "rustfmt", "clippy" ]\nprofile = "minimal"\ntargets = [ "wasm32-unknown-unknown", "thumbv2-none-eabi" ]',
+            "./rust-toolchain.toml"
+        );
+
+        const args = morph(() => {
+            return getToolchainArgs(rustToolchainFile.replace(/\.toml^/, ""));
+        }, {});
+
+        expect(args.name).toBe("1.51.0");
+        expect(args.components).toStrictEqual(["rustfmt", "clippy"]);
+        expect(args.profile).toBe("minimal");
+        expect(args.target).toBe("wasm32-unknown-unknown");
+    });
+
     it("trims content of the override file", function () {
         const rustToolchainFile = tempWriteSync("\n     1.39.0\n\n\n\n");
 

action.yml

@@ -1,10 +1,13 @@
-name: 'rust-toolchain'
-description: 'Install the Rust toolchain'
-author: 'actions-rs team'
+name: "rust-toolchain"
+description: "Install the Rust toolchain"
+author: "actions-rs team"
 branding:
   icon: play-circle
   color: black
 inputs:
+  working-directory:
+    description: The working directory to find the rust-toolchain in.
+    required: false
   toolchain:
     description: |
       Rust toolchain name.
@@ -40,5 +43,5 @@ outputs:
     description: Installed rustup version
 
 runs:
-  using: 'node12'
-  main: 'dist/index.js'
+  using: "node12"
+  main: "dist/index.js"

package-lock.json

@@ -764,6 +764,11 @@
                 }
             }
         },
+        "@iarna/toml": {
+            "version": "2.2.5",
+            "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
+            "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="
+        },
         "@istanbuljs/load-nyc-config": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",

package.json

@@ -10,8 +10,8 @@
     },
     "scripts": {
         "build": "rm -rf ./dist/* && ncc build src/main.ts --minify",
-        "format": "prettier --write 'src/**/*.ts' '__tests__/**/*.ts'",
-        "lint": "tsc --noEmit && eslint 'src/**/*.ts' '__tests__/**/*.ts'",
+        "format": "prettier --write .",
+        "lint": "tsc --noEmit && eslint .",
         "watch": "rm -rf ./dist/* && ncc build src/main.ts --watch",
         "test": "jest -c jest.config.json",
         "pretest": "git config core.hooksPath .githooks"
@@ -35,7 +35,8 @@
         "@actions-rs/core": "^0.1.6",
         "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.4",
-        "@actions/io": "^1.0.2"
+        "@actions/io": "^1.0.2",
+        "@iarna/toml": "^2.2.5"
     },
     "devDependencies": {
         "@types/jest": "^26.0.15",

src/args.ts

@@ -1,52 +1,36 @@
 import { input } from "@actions-rs/core";
-import { debug } from "@actions/core";
-import { existsSync, readFileSync } from "fs";
+import { parseToolchainFile } from "./toolchain_file";
 
 export interface ToolchainOptions {
     name: string;
-    target: string | undefined;
-    default: boolean;
-    override: boolean;
-    profile: string | undefined;
-    components: string[] | undefined;
-}
-
-function determineToolchain(overrideFile: string): string {
-    const toolchainInput = input.getInput("toolchain", { required: false });
-
-    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;
+    target?: string | undefined;
+    default?: boolean;
+    override?: boolean;
+    profile?: string | undefined;
+    components?: string[] | undefined;
 }
 
 export function getToolchainArgs(overrideFile: string): ToolchainOptions {
+    const toolchainInput = input.getInput("toolchain", { required: false });
     let components: string[] | undefined = input.getInputList("components");
     if (components && components.length === 0) {
         components = undefined;
     }
 
+    const toolchainFromFile = parseToolchainFile(overrideFile);
+
+    if (!toolchainInput && !toolchainFromFile) {
+        throw new Error(
+            "toolchain input was not given and repository does not have a rust-toolchain file"
+        );
+    }
+
     return {
-        name: determineToolchain(overrideFile),
-        target: input.getInput("target") || undefined,
+        name: toolchainInput || toolchainFromFile?.name || "",
+        target: input.getInput("target") || toolchainFromFile?.target,
         default: input.getInputBool("default"),
         override: input.getInputBool("override"),
-        profile: input.getInput("profile") || undefined,
-        components: components,
+        profile: input.getInput("profile") || toolchainFromFile?.profile,
+        components: components || toolchainFromFile?.components,
     };
 }

src/main.ts

@@ -5,9 +5,15 @@ import * as args from "./args";
 import * as versions from "./versions";
 import { RustUp, ToolchainOptions } from "@actions-rs/core";
 
+type Profile = "minimal" | "default" | "full";
+
 async function run(): Promise<void> {
     // we use path.join to make sure this works on Windows, Linux and MacOS
-    const toolchainOverridePath = path.join(process.cwd(), "rust-toolchain");
+    const toolchainOverridePath = path.join(
+        process.cwd(),
+        core.getInput("working-directory"),
+        "rust-toolchain"
+    );
 
     const opts = args.getToolchainArgs(toolchainOverridePath);
     const rustup = await RustUp.getOrInstall();
@@ -30,8 +36,7 @@ async function run(): Promise<void> {
     }
 
     if (opts.profile) {
-        // @ts-ignore: TS2345
-        await rustup.setProfile(opts.profile);
+        await rustup.setProfile(opts.profile as Profile);
     }
 
     const installOptions: ToolchainOptions = {
@@ -90,8 +95,9 @@ async function main(): Promise<void> {
     try {
         await run();
     } catch (error) {
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
         core.setFailed(error.message);
     }
 }
 
-main();
+void main();

src/toolchain_file.ts

@@ -0,0 +1,60 @@
+import TOML from "@iarna/toml";
+import { ToolchainOptions } from "./args";
+import { existsSync, readFileSync } from "fs";
+import { debug } from "@actions/core";
+
+interface RustToolchainFileToolchain {
+    channel: string;
+    targets: string[] | undefined;
+    profile: string | undefined;
+    components?: string[] | undefined;
+}
+
+interface RustToolchainFile {
+    toolchain: RustToolchainFileToolchain;
+}
+
+export function parseToolchainFile(
+    overrideFile: string
+): ToolchainOptions | null {
+    if (!existsSync(overrideFile)) {
+        if (existsSync(`${overrideFile}.toml`)) {
+            overrideFile = `${overrideFile}.toml`;
+        } else {
+            debug("Repository does not have a rust-toolchain file");
+
+            return null;
+        }
+    }
+
+    const rustToolchainFile = readFileSync(overrideFile, {
+        encoding: "utf-8",
+        flag: "r",
+    }).trim();
+
+    try {
+        debug(`using toolchain from rust-toolchain file: ${rustToolchainFile}`);
+
+        // eslint-disable-next-line
+        const parsedToolchain = (TOML.parse(
+            rustToolchainFile
+        ) as unknown) as RustToolchainFile;
+
+        return {
+            name: parsedToolchain.toolchain.channel,
+            target: parsedToolchain.toolchain.targets?.[0],
+            profile: parsedToolchain.toolchain.profile,
+            components: parsedToolchain.toolchain.components,
+        };
+    } catch (err) {
+        debug(
+            `using toolchain from old style rust-toolchain file: ${rustToolchainFile}`
+        );
+
+        return {
+            name: rustToolchainFile,
+            default: true,
+            override: false,
+        };
+    }
+}

src/versions.ts

@@ -45,7 +45,7 @@ function parseShort(stdout: string): string {
 async function getStdout(
     exe: string,
     args: string[],
-    options?: {}
+    options?: Record<string, unknown>
 ): Promise<string> {
     let stdout = "";
     const resOptions = Object.assign({}, options, {

tsconfig.eslint.json

@@ -1,7 +1,4 @@
 {
     "extends": "./tsconfig.json",
-    "include": [
-        "src/**/*.ts",
-        "__tests__/**/*.ts"
-    ]
+    "include": ["src/**/*.ts", "__tests__/**/*.ts"]
 }

tsconfig.json

@@ -26,7 +26,5 @@
         "sourceMap": false,
         "typeRoots": ["./types", "./node_modules/@types"]
     },
-    "include": [
-        "src/**/*.ts"
-    ]
+    "include": ["src", "__tests__"]
 }

types/mock-env/index.d.ts

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