fix: use http client for downloading the LLVM installer

src/brew/brew.ts

@@ -1,12 +1,12 @@
 import { tmpdir } from "os"
 import { join } from "path"
+import { HttpClient } from "@actions/http-client"
 import { addPath } from "envosman"
 import { execaSync } from "execa"
+import { writeFile } from "fs/promises"
 import { dirname } from "patha"
 import which from "which"
 import { rcOptions } from "../cli-options.js"
-import { HttpClient } from "@actions/http-client"
-import { writeFile } from "fs/promises"
 
 /* eslint-disable require-atomic-updates */
 let binDir: string | undefined

src/llvm/llvm_installer.ts

@@ -1,8 +1,10 @@
 import { info } from "console"
+import { tmpdir } from "os"
+import { join } from "path"
+import { HttpClient } from "@actions/http-client"
 import { execRoot } from "admina"
 import { addPath } from "envosman"
-import { execa } from "execa"
-import { chmod, readFile, writeFile } from "fs/promises"
+import { chmod, writeFile } from "fs/promises"
 import { aptTimeout, hasNala, installAptPack, isAptPackRegexInstalled } from "setup-apt"
 import { rcOptions } from "../cli-options.js"
 import { DEFAULT_TIMEOUT } from "../installTool.js"
@@ -21,14 +23,26 @@ export async function setupLLVMApt(
   // TODO for older versions, this also includes the minor version
   const installationFolder = `/usr/lib/llvm-${majorVersion}`
 
-  await installAptPack([{ name: "curl" }])
-  await execa("curl", ["-LJO", "https://apt.llvm.org/llvm.sh"], { cwd: "/tmp" })
-  const neededPackages = await patchAptLLVMScript("/tmp/llvm.sh", "/tmp/llvm-setup-cpp.sh", majorVersion, packages)
+  // download the installation script
+  const http = new HttpClient("setup-llvm")
+  const response = await http.get("https://apt.llvm.org/llvm.sh")
+  if (response.message.statusCode !== 200) {
+    throw new Error(`Failed to download LLVM installation script: ${response.message.statusCode}`)
+  }
+  const installerScript = await response.readBody()
+
+  const installerPath = join(tmpdir(), "llvm-setup-cpp.sh")
+  const neededPackages = await patchAptLLVMScript(
+    installerScript,
+    installerPath,
+    majorVersion,
+    packages,
+  )
   await installAptPack(neededPackages)
-  await chmod("/tmp/llvm-setup-cpp.sh", "755")
+  await chmod(installerPath, "755")
   await execRoot(
     "bash",
-    ["/tmp/llvm-setup-cpp.sh", `${majorVersion}`, ...(packages === LLVMPackages.All ? ["all"] : [])],
+    [installerPath, `${majorVersion}`, ...(packages === LLVMPackages.All ? ["all"] : [])],
     {
       stdio: "inherit",
       shell: true,
@@ -45,10 +59,13 @@ export async function setupLLVMApt(
   }
 }
 
-async function patchAptLLVMScript(path: string, target_path: string, majorVersion: number, packages: LLVMPackages) {
-  let script = await readFile(path, "utf-8")
-
-  script = debugScript(script)
+async function patchAptLLVMScript(
+  givenScript: string,
+  target_path: string,
+  majorVersion: number,
+  packages: LLVMPackages,
+) {
+  let script = debugScript(givenScript)
   script = nonInteractiveScript(script)
   script = choosePackages(packages, script, majorVersion)
   script = await removeConflictingPackages(script)