fix: extract tar.xz files correctly with 7zip

src/utils/setup/extract.ts

@@ -2,6 +2,7 @@ import { mkdirP } from "@actions/io"
 import { grantUserWriteAccess } from "admina"
 import { info, warning } from "ci-log"
 import { execa } from "execa"
+import { rm } from "fs/promises"
 import { installAptPack } from "setup-apt"
 import which from "which"
 import { setupSevenZip } from "../../sevenzip/sevenzip.js"
@@ -68,6 +69,16 @@ let sevenZip: string | undefined
 export async function extract7Zip(file: string, dest: string) {
   await execa(await getSevenZip(), ["x", file, `-o${dest}`, "-y"], { stdio: "inherit" })
   await grantUserWriteAccess(dest)
+
+  // if the file is tar.gz or tar.xz, extract the resulting tar again
+  const fileParts = file.split(".")
+  if (fileParts.length >= 2 && fileParts[fileParts.length - 2] === "tar") {
+    const tarFile = `${dest}/${fileParts.slice(0, -2).join(".")}.tar`
+    await extract7Zip(tarFile, dest)
+    // remove the tar file
+    await rm(tarFile)
+  }
+
   return dest
 }