fix: use nala on ubuntu instead of apt

action.yml

@@ -75,9 +75,6 @@ inputs:
   sevenzip:
     description: "The 7z version to install."
     required: false
-  nala:
-    description: 'The nala version to install ("legacy" or "").'
-    required: false
 
 runs:
   using: "node12"

src/main.ts

@@ -43,6 +43,7 @@ import { addEnv } from "./utils/env/addEnv"
 import { setupSevenZip } from "./sevenzip/sevenzip"
 import { setupGraphviz } from "./graphviz/graphviz"
 import { setupNala } from "./nala/nala"
+import { isUbuntu } from "./utils/env/isUbuntu"
 
 /** The setup functions */
 const setups = {
@@ -154,6 +155,10 @@ export async function main(args: string[]): Promise<number> {
     return 1
   }
 
+  if (isUbuntu()) {
+    setupNala(getVersion("nala", undefined, osVersion), "", arch)
+  }
+
   // loop over the tools and run their setup function
   for (const tool of tools) {
     // get the version or "true" or undefined for this tool from the options

src/nala/__tests__/nala.test.ts

@@ -1,10 +1,11 @@
 import { setupNala } from "../nala"
 import { testBin } from "../../utils/tests/test-helpers"
+import { isUbuntu } from "../../utils/env/isUbuntu"
 
 jest.setTimeout(300000)
 describe("setup-nala", () => {
   it("should setup nala", async () => {
-    if (process.platform !== "linux") {
+    if (!isUbuntu()) {
       return
     }
     const installInfo = setupNala("", "", process.arch)

src/nala/nala.ts

@@ -1,5 +1,6 @@
 import { dirname } from "path"
 import which from "which"
+import { isUbuntu } from "../utils/env/isUbuntu"
 import { execSudo } from "../utils/exec/sudo"
 import { setupAptPack } from "../utils/setup/setupAptPack"
 
@@ -7,7 +8,7 @@ let binDir: string | undefined
 
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
 export function setupNala(version: string, _setupDir: string, _arch: string) {
-  if (process.platform !== "linux") {
+  if (!isUbuntu()) {
     return undefined
   }
   if (typeof binDir === "string") {

src/utils/setup/setupAptPack.ts

@@ -6,6 +6,7 @@ import { warning } from "../io/io"
 import { isGitHubCI } from "../env/isCI"
 import { cpprc_path, setupCppInProfile } from "../env/addEnv"
 import { appendFileSync } from "fs"
+import which from "which"
 
 let didUpdate: boolean = false
 let didInit: boolean = false
@@ -19,7 +20,12 @@ export function setupAptPack(
 ): InstallationInfo {
   info(`Installing ${name} ${version ?? ""} via apt`)
 
-  const apt = "apt-get"
+  let apt: string
+  if (which.sync("nala", { nothrow: true }) !== null) {
+    apt = "nala"
+  } else {
+    apt = "apt-get"
+  }
 
   process.env.DEBIAN_FRONTEND = "noninteractive"