feat: install setup-cpp CLI in GitHub Actions

.github/workflows/CI.yml

@@ -200,6 +200,7 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
+
       - name: Smoke Test Modern Bundle
         if: ${{ !contains(github.event.head_commit.message, '[skip test]') }}
         run: |
@@ -208,6 +209,11 @@ jobs:
         env:
           RUNNER_OS_NAME: ${{ matrix.os }}
 
+      - name: Smoke Test Global Install
+        if: ${{ !contains(github.event.head_commit.message, '[skip test]') }}
+        run: |
+          setup-cpp --help
+
       - name: Setup Node 12
         if: ${{ !contains(matrix.os, 'macos-14') && !contains(matrix.os, 'macos-15') }}
         uses: actions/setup-node@v4

README.md

@@ -31,7 +31,7 @@ Setting up a **cross-platform** environment for building and testing C++/C proje
 | --------------- | ----------------------------------------------------------------------------------------------------------- |
 | compiler        | llvm, gcc, msvc, apple-clang, vcvarsall                                                                     |
 | build system    | cmake, ninja, meson, make, task, bazel                                                                      |
-| package manager | vcpkg, conan, choco, brew, nala                                                                             |
+| package manager | vcpkg, conan, choco, brew, nala, setup-cpp                                                                  |
 | analyzer/linter | clang-tidy, clang-format, cppcheck, cpplint, flawfinder, lizard, infer, cmakelang, cmake-format, cmake-lint |
 | cache           | ccache, sccache                                                                                             |
 | documentation   | doxygen, graphviz                                                                                           |
@@ -195,6 +195,19 @@ jobs:
           cppcheck: true # instead of `true`, which chooses the default version, you can pass a specific version.
 ```
 
+When using the `setup-cpp` action in GitHub Actions, by default it will also install the `setup-cpp` CLI, which you can use in the subsequent commands. You can modify the default behaviour if needed.
+
+```yaml
+  - name: Setup Cpp
+    uses: aminya/setup-cpp@v1
+    with:
+      setup-cpp: true
+      node-package-manager: "npm"
+
+  - name: Use Setup Cpp CLI
+    run: setup-cpp --compiler llvm --cmake true --ninja true --ccache true --vcpkg true
+```
+
 ### Prebuilt Docker Images
 
 To provide fast development environments, `setup-cpp` provides several prebuilt docker images that have the tools you need. You can use these images as a base image for your project.

action.yml

@@ -157,6 +157,12 @@ inputs:
   python:
     description: "Wether to install python (true/false) or the specific version to install."
     required: false
+  setup-cpp:
+    description: "Wether to install setup-cpp (true/false) or the specific version to install. (Default to the current version called by the action)"
+    required: false
+  node-package-manager:
+    description: "The node package manager to use (npm/yarn/pnpm) when installing setup-cpp globally"
+    required: false
 
 runs:
   using: "node20"

src/cli-options.ts

@@ -6,11 +6,12 @@ import { type Inputs, inputs } from "./tool.js"
 import type { InstallationInfo } from "./utils/setup/setupBin.js"
 
 export function parseArgs(args: string[]): Opts {
-  return mri<Record<Inputs, string | undefined> & { help: boolean }>(args, {
-    string: [...inputs, "timeout"],
-    default: Object.fromEntries(inputs.map((inp) => [inp, maybeGetInput(inp)])),
-    alias: { h: "help" },
-    boolean: "help",
+  const defaults = Object.fromEntries(inputs.map((inp) => [inp, maybeGetInput(inp)]))
+  return mri<Record<Inputs, string | undefined> & { help: boolean; version: boolean; "setup-cpp": boolean }>(args, {
+    string: [...inputs, "timeout", "node-package-manager"],
+    default: defaults,
+    alias: { h: "help", v: "version" },
+    boolean: ["help", "version", "setup-cpp"],
   })
 }
 
@@ -25,7 +26,10 @@ Install all the tools required for building and testing C++/C projects.
 --timeout\t the timeout for the installation of each tool in minutes. By default it is 10 minutes.
 --compiler\t the <compiler> to install.
           \t You can specify the version instead of specifying just the name e.g: --compiler 'llvm-13.0.0'
---$tool_name\t pass "true" or pass the <version> you would like to install for this tool. e.g. --conan true or --conan "1.42.1"
+--tool_name\t pass "true" or pass the <version> you would like to install for this tool. e.g. --conan true or --conan "1.42.1"
+--nodePackageManager\t the node package manager to use (npm/yarn/pnpm) when installing setup-cpp globally
+--help\t show this help message
+--version\t show the version of setup-cpp
 
 All the available tools:
 `)
@@ -38,7 +42,7 @@ All the available tools:
       "build system": {
         tools: "--cmake, --ninja, --meson, --make, --task, --bazel",
       },
-      "package manager": { tools: "--vcpkg, --conan, --choco, --brew, --nala" },
+      "package manager": { tools: "--vcpkg, --conan, --choco, --brew, --nala, --setup-cpp" },
       "analyzer/linter": {
         tools:
           "--clang-tidy, --clang-format, --cppcheck, --cpplint, --flawfinder, --lizard, --infer, , --cmakelang, --cmake-lint, --cmake-format",
@@ -63,7 +67,10 @@ export function maybeGetInput(key: string) {
 export type Opts = mri.Argv<
   Record<Inputs, string | undefined> & {
     help: boolean
+    version: boolean
+    "setup-cpp"?: boolean
     timeout?: string
+    "node-package-manager"?: string
   }
 >
 

src/setup-cpp-installer.ts

@@ -0,0 +1,27 @@
+import { error, info } from "ci-log"
+import { execa } from "execa"
+import which from "which"
+/**
+ * Install the setup-cpp CLI globally
+ * @param version - The version of setup-cpp to install
+ * @param packageManager - The package manager to use
+ */
+export async function installSetupCpp(version: string, packageManager: string = "npm") {
+  try {
+    // check if `setup-cpp` is available in the shell, if so, skip the installation to avoid overwriting the existing version
+    const setupCppPath = await which("setup-cpp", { nothrow: true })
+    if (setupCppPath !== null) {
+      return
+    }
+
+    // Install setup-cpp globally
+    info(`Installing setup-cpp@${version} via ${packageManager}...`)
+    await execa(packageManager, ["install", "-g", `setup-cpp@${version}`], {
+      stdio: "inherit",
+      // 1 minutes timeout
+      timeout: 1000 * 60 * 1,
+    })
+  } catch (err) {
+    error(`Failed to install the setup-cpp@${version} CLI: ${err}. Ignoring...`)
+  }
+}

src/setup-cpp.ts

@@ -9,10 +9,12 @@ import numerousLocale from "numerous/locales/en.js"
 import timeDelta from "time-delta"
 import timeDeltaLocale from "time-delta/locales/en.js"
 import { untildifyUser } from "untildify-user"
+import packageJson from "../package-version.json"
 import { checkUpdates } from "./check-updates.js"
 import { parseArgs, printHelp, rcOptions } from "./cli-options.js"
 import { getCompilerInfo, installCompiler } from "./compilers.js"
 import { installTool } from "./installTool.js"
+import { installSetupCpp } from "./setup-cpp-installer.js"
 import { type Inputs, llvmTools, tools } from "./tool.js"
 import { isArch } from "./utils/env/isArch.js"
 import { ubuntuVersion } from "./utils/env/ubuntu_version.js"
@@ -21,11 +23,7 @@ import { syncVersions } from "./versions/versions.js"
 
 /** The main entry function */
 async function main(args: string[]): Promise<number> {
-  let checkUpdatePromise = Promise.resolve()
-  if (!GITHUB_ACTIONS) {
-    checkUpdatePromise = checkUpdates()
-    process.env.ACTIONS_ALLOW_UNSECURE_COMMANDS = "true"
-  }
+  const checkUpdatePromise = GITHUB_ACTIONS ? Promise.resolve() : checkUpdates()
 
   // parse options using mri or github actions
   const opts = parseArgs(args)
@@ -35,6 +33,11 @@ async function main(args: string[]): Promise<number> {
     printHelp()
   }
 
+  // print version
+  if (opts.version) {
+    info(`${packageJson.version}`)
+  }
+
   // cpu architecture
   const arch = opts.architecture ?? process.arch
 
@@ -122,11 +125,20 @@ async function main(args: string[]): Promise<number> {
 
   await finalizeRC(rcOptions)
 
-  if (successMessages.length === 0 && errorMessages.length === 0) {
-    warning("setup-cpp was called without any arguments. Nothing to do.")
-    return 0
+  const noTool = successMessages.length === 0 && errorMessages.length === 0
+
+  // if setup-cpp option is not passed, install setup-cpp by default unless only help or version is passed
+  // So that --help and --version are immutable
+  if (opts["setup-cpp"] === undefined) {
+    opts["setup-cpp"] = !(noTool && (opts.version || opts.help))
   }
 
+  const installSetupCppPromise = opts["setup-cpp"]
+    ? installSetupCpp(packageJson.version, opts["node-package-manager"])
+    : Promise.resolve()
+
+  await Promise.all([checkUpdatePromise, installSetupCppPromise])
+
   // report the messages in the end
   for (const tool of successMessages) {
     success(tool)
@@ -135,27 +147,26 @@ async function main(args: string[]): Promise<number> {
     error(tool)
   }
 
-  info("setup-cpp finished")
-
-  if (!GITHUB_ACTIONS) {
-    switch (process.platform) {
-      case "win32": {
-        warning("Run `RefreshEnv.cmd` or restart your shell to update the environment.")
-        break
-      }
-      case "linux":
-      case "darwin": {
-        warning("Run `source ~/.cpprc` or restart your shell to update the environment.")
-        break
-      }
-      default: {
-        // nothing
+  if (successMessages.length !== 0 || errorMessages.length !== 0) {
+    info("setup-cpp finished")
+
+    if (!GITHUB_ACTIONS) {
+      switch (process.platform) {
+        case "win32": {
+          warning("Run `RefreshEnv.cmd` or restart your shell to update the environment.")
+          break
+        }
+        case "linux":
+        case "darwin": {
+          warning("Run `source ~/.cpprc` or restart your shell to update the environment.")
+          break
+        }
+        default: {
+          // nothing
+        }
       }
     }
   }
-
-  await checkUpdatePromise
-
   return errorMessages.length === 0 ? 0 : 1 // exit with non-zero if any error message
 }