Use different ssh-add command for Windows/!Windows

.github/workflows/demo.yml

@@ -1,13 +1,53 @@
 on: [push, pull_request]
 
 jobs:
+    single_key_demo:
+        strategy:
+            matrix:
+                os: [ubuntu-latest, macOS-latest, windows-latest]
+        runs-on: ${{ matrix.os }}
+        steps:
+            - uses: actions/checkout@v2
+            - name: Setup key
+              uses: ./
+              with:
+                  ssh-private-key: |
+                    ${{ secrets.DEMO_KEY }}
+                    ${{ secrets.DEMO_KEY_2 }}
+
+    multiple_keys_demo:
+        strategy:
+            matrix:
+                os: [ubuntu-latest, macOS-latest]
+        runs-on: ${{ matrix.os }}
+        steps:
+            - uses: actions/checkout@v2
+            - name: Setup key
+              uses: ./
+              with:
+                  ssh-private-key: ${{ secrets.DEMO_KEY }}
+
+    docker_demo:
+        runs-on: ubuntu-latest
+        container:
+            image: ubuntu:latest
+        steps:
+            - uses: actions/checkout@v2
+            - run: apt update && apt install -y openssh-client
+            - name: Setup key
+              uses: ./
+              with:
+                  ssh-private-key: |
+                    ${{ secrets.DEMO_KEY }}
+                    ${{ secrets.DEMO_KEY_2 }}
+
     deployment_keys_demo:
         env:
             GIT_SSH_COMMAND: ssh -v
         strategy:
             fail-fast: false
             matrix:
-                os: [windows-latest]
+                os: [ubuntu-latest, macOS-latest, windows-latest]
         runs-on: ${{ matrix.os }}
         steps:
             - uses: actions/checkout@v2
@@ -17,13 +57,6 @@ jobs:
                   ssh-private-key: |
                     ${{ secrets.MPDUDE_TEST_1_DEPLOY_KEY }}
                     ${{ secrets.MPDUDE_TEST_2_DEPLOY_KEY }}
-            - name: Start SSH session
-              uses: luchihoratiu/debug-via-ssh@main
-              if: ${{ failure() }}
-              with:
-                  NGROK_AUTH_TOKEN: ${{ secrets.NGROK_AUTH_TOKEN }}
-                  SSH_PASS: ${{ secrets.SSH_PASS }}
-
             - run: |
                 cat ~/.ssh/config
                 ls -alh ~/.ssh

dist/index.js

@@ -120,6 +120,7 @@ const child_process = __webpack_require__(129);
 const fs = __webpack_require__(747);
 const os = __webpack_require__(87);
 const token = __webpack_require__(417).randomBytes(64).toString('hex');
+const isWindows = (process.env['OS'] == 'Windows_NT');
 
 try {
     const privateKey = core.getInput('ssh-private-key');
@@ -132,7 +133,7 @@ try {
 
     var home;
 
-    if (process.env['OS'] == 'Windows_NT') {
+    if (isWindows) {
         console.log('Preparing ssh-agent service on Windows');
         child_process.execSync('sc config ssh-agent start=demand', { stdio: 'inherit' });
 
@@ -191,7 +192,11 @@ try {
         }
 
         // Load key into agent
-        child_process.execFileSync('ssh-add', [keyFile], { env: { ...process.env, ...{ 'DISPLAY': 'fake', 'SSH_PASS': token, 'SSH_ASKPASS': 'D:\\a\\ssh-agent\\ssh-agent\\askpass.exe' } } });
+        if (isWindows) {
+            child_process.execFileSync('ssh-add', [keyFile], { env: { ...process.env, ...{ 'DISPLAY': 'fake', 'SSH_PASS': token, 'SSH_ASKPASS': 'D:\\a\\ssh-agent\\ssh-agent\\askpass.exe' } } });
+        } else {
+            child_process.execFileSync('ssh-add', [keyFile], { input: token });
+        }
         
         output.toString().split(/\r?\n/).forEach(function(key) {
             let parts = key.match(/^Key has comment '.*\bgithub\.com[:/]([_.a-z0-9-]+\/[_.a-z0-9-]+?)(?=\.git|\s|\')/);

index.js

@@ -3,6 +3,7 @@ const child_process = require('child_process');
 const fs = require('fs');
 const os = require('os');
 const token = require('crypto').randomBytes(64).toString('hex');
+const isWindows = (process.env['OS'] == 'Windows_NT');
 
 try {
     const privateKey = core.getInput('ssh-private-key');
@@ -15,7 +16,7 @@ try {
 
     var home;
 
-    if (process.env['OS'] == 'Windows_NT') {
+    if (isWindows) {
         console.log('Preparing ssh-agent service on Windows');
         child_process.execSync('sc config ssh-agent start=demand', { stdio: 'inherit' });
 
@@ -74,7 +75,11 @@ try {
         }
 
         // Load key into agent
-        child_process.execFileSync('ssh-add', [keyFile], { env: { ...process.env, ...{ 'DISPLAY': 'fake', 'SSH_PASS': token, 'SSH_ASKPASS': 'D:\\a\\ssh-agent\\ssh-agent\\askpass.exe' } } });
+        if (isWindows) {
+            child_process.execFileSync('ssh-add', [keyFile], { env: { ...process.env, ...{ 'DISPLAY': 'fake', 'SSH_PASS': token, 'SSH_ASKPASS': 'D:\\a\\ssh-agent\\ssh-agent\\askpass.exe' } } });
+        } else {
+            child_process.execFileSync('ssh-add', [keyFile], { input: token });
+        }
         
         output.toString().split(/\r?\n/).forEach(function(key) {
             let parts = key.match(/^Key has comment '.*\bgithub\.com[:/]([_.a-z0-9-]+\/[_.a-z0-9-]+?)(?=\.git|\s|\')/);