feat: detect if sudo should be used (#138)

.github/workflows/manual-test.yml

@@ -41,4 +41,3 @@ jobs:
       - uses: ./
         with:
           limit-access-to-actor: ${{ matrix.limit-access-to-actor }}
-          sudo: false

action.yml

@@ -10,7 +10,7 @@ inputs:
   sudo:
     description: 'If apt should be executed with sudo or without'
     required: false
-    default: 'true'
+    default: 'auto'
   install-dependencies:
     description: 'Whether or not to install dependencies for tmate on linux (openssh-client, xz-utils)'
     required: false

lib/index.js

@@ -12470,6 +12470,15 @@ var external_child_process_ = __nccwpck_require__(2081);
 
 
 
+
+/**
+ * @returns {boolean}
+ */
+const useSudoPrefix = () => {
+  const input = core.getInput("sudo");
+  return input === "auto" ? external_os_default().userInfo().uid !== 0 : input === "true";
+}
+
 /**
  * @param {string} cmd
  * @returns {Promise<string>}
@@ -12570,7 +12579,7 @@ async function run() {
       } else if (process.platform === "win32") {
         await execShellCommand('pacman -Sy --noconfirm tmate');
       } else {
-        const optionalSudoPrefix = core.getInput("sudo") === "true" ? "sudo " : "";
+        const optionalSudoPrefix = useSudoPrefix() ? "sudo " : "";
         const distro = await getLinuxDistro();
         core.debug("linux distro: [" + distro + "]");
         if (distro === "alpine") {

src/helpers.js

@@ -2,6 +2,15 @@
 import { spawn } from 'child_process'
 import * as core from "@actions/core"
 import fs from 'fs'
+import os from 'os'
+
+/**
+ * @returns {boolean}
+ */
+export const useSudoPrefix = () => {
+  const input = core.getInput("sudo");
+  return input === "auto" ? os.userInfo().uid !== 0 : input === "true";
+}
 
 /**
  * @param {string} cmd

src/index.js

@@ -7,7 +7,7 @@ import * as github from "@actions/github"
 import * as tc from "@actions/tool-cache"
 import { Octokit } from "@octokit/rest"
 
-import { execShellCommand, getValidatedInput, getLinuxDistro } from "./helpers"
+import { execShellCommand, getValidatedInput, getLinuxDistro, useSudoPrefix } from "./helpers"
 
 const TMATE_LINUX_VERSION = "2.4.0"
 
@@ -34,7 +34,7 @@ export async function run() {
       } else if (process.platform === "win32") {
         await execShellCommand('pacman -Sy --noconfirm tmate');
       } else {
-        const optionalSudoPrefix = core.getInput("sudo") === "true" ? "sudo " : "";
+        const optionalSudoPrefix = useSudoPrefix() ? "sudo " : "";
         const distro = await getLinuxDistro();
         core.debug("linux distro: [" + distro + "]");
         if (distro === "alpine") {