fix: fix the brew installation on Linux

Author: aminya

dist/node12/setup_cpp.js

@@ -7,7 +7,7 @@ describe("setup-brew", () => {
     if (process.platform !== "darwin") {
       return
     }
-    const installInfo = setupBrew("", "", process.arch)
+    const installInfo = await setupBrew("", "", process.arch)
     await testBin("brew", ["--version"], installInfo?.binDir)
   })
 })

dist/node12/setup_cpp.js.map

@@ -1,11 +1,15 @@
-import { execFileSync } from "child_process"
+import execa from "execa"
 import { dirname } from "patha"
 import which from "which"
+import { tmpdir } from "os"
+import path, { join } from "path"
+import { mkdirP } from "@actions/io"
+import { readFileSync } from "fs"
 
 let binDir: string | undefined
 
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
-export function setupBrew(_version: string, _setupDir: string, _arch: string) {
+export async function setupBrew(_version: string, _setupDir: string, _arch: string) {
   if (!["darwin", "linux"].includes(process.platform)) {
     return undefined
   }
@@ -20,8 +24,25 @@ export function setupBrew(_version: string, _setupDir: string, _arch: string) {
   }
 
   // brew is not thread-safe
-  execFileSync(`/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"`, {
+  const brewTempDirectory = path.join(tmpdir(), "setup_cpp", "brew")
+  await mkdirP(brewTempDirectory)
+
+  execa.sync("curl", ["-LJO", "https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh"], {
+    cwd: brewTempDirectory,
+  })
+  const installSh = join(brewTempDirectory, "install.sh")
+
+  if (process.platform === "linux") {
+    const installShContent = readFileSync(installSh, "utf-8")
+
+    installShContent.replace("#!/bin/bash", "")
+  }
+
+  execa.sync("/bin/bash", [installSh], {
     stdio: "inherit",
+    env: {
+      NONINTERACTIVE: "1",
+    },
   })
   binDir = "/usr/local/bin/"