.github/workflows/demo.yml

@@ -0,0 +1,46 @@
+on: [ push, pull_request ]
+
+jobs:
+    deployment_keys_demo:
+        strategy:
+            fail-fast: false
+            matrix:
+                os: [ ubuntu-latest, macOS-latest, windows-latest ]
+        runs-on: ${{ matrix.os }}
+        steps:
+            -   uses: actions/checkout@v3
+            -   name: Setup key
+                uses: ./
+                with:
+                    ssh-private-key: |
+                        ${{ secrets.MPDUDE_TEST_1_DEPLOY_KEY }}
+                        ${{ secrets.MPDUDE_TEST_2_DEPLOY_KEY }}
+            -   run: |
+                    git clone https://github.com/mpdude/test-1.git test-1-http
+                    git clone git@github.com:mpdude/test-1.git test-1-git
+                    git clone ssh://git@github.com/mpdude/test-1.git test-1-git-ssh
+                    git clone https://github.com/mpdude/test-2.git test-2-http
+                    git clone git@github.com:mpdude/test-2.git test-2-git
+                    git clone ssh://git@github.com/mpdude/test-2.git test-2-git-ssh
+
+    docker_demo:
+        runs-on: ubuntu-latest
+        container:
+            image: ubuntu:latest
+        steps:
+            -   uses: actions/checkout@v3
+            -   run: apt update && apt install -y openssh-client git
+            -   name: Setup key
+                uses: ./
+                with:
+                    ssh-private-key: |
+                        ${{ secrets.MPDUDE_TEST_1_DEPLOY_KEY }}
+                        ${{ secrets.MPDUDE_TEST_2_DEPLOY_KEY }}
+            -   run: |
+                    git clone https://github.com/mpdude/test-1.git test-1-http
+                    git clone git@github.com:mpdude/test-1.git test-1-git
+                    git clone ssh://git@github.com/mpdude/test-1.git test-1-git-ssh
+                    git clone https://github.com/mpdude/test-2.git test-2-http
+                    git clone git@github.com:mpdude/test-2.git test-2-git
+                    git clone ssh://git@github.com/mpdude/test-2.git test-2-git-ssh
+

CHANGELOG.md

@@ -7,137 +7,112 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## v0.9.2 [2025-06-30] (khs.codes)
-
-- Support running under NixOS with dynamic user setting, or at least attempt to
-
-## v0.9.1 [2024-03-17]
-
-### Fixed
-
-- Fix path used to execute ssh-agent in cleanup.js to respect custom paths set by input (#235)
-
-## v0.9.0 [2024-02-06]
-
-### Changed
-
-- Update all versions of `actions/checkout` to v4 (#199)
-- Update to Node 20 (#201)
-
-## v0.8.0 [2023-03-24]
-
-### Changed
-
-- No longer writing GitHub's SSH host keys to `known_hosts` (#171)
-- Update to actions/checkout@v3 (#143)
-- Allow the user to override the commands for git, ssh-agent, and ssh-add (#154)
-
 ## v0.7.0 [2022-10-19]
 
 ### Added
 
-- Add the `log-public-key` input that can be used to turn off logging key identities (#122)
+ * Add the `log-public-key` input that can be used to turn off logging key identities (#122)
 
 ### Fixed
 
-- Fix path to `git` binary on Windows, assuming GitHub-hosted runners (#136, #137)
-- Fix a nonsensical log message (#139)
+ * Fix path to `git` binary on Windows, assuming GitHub-hosted runners (#136, #137)
+ * Fix a nonsensical log message (#139)
 
 ## v0.6.0 [2022-10-19]
 
 ### Changed
 
-- Update the version of Node used by the action from 12 to 16 (https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/).
+ * Update the version of Node used by the action from 12 to 16 (https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/).
 
 ## v0.5.4 [2021-11-21]
 
 ### Fixed
 
-- Update changed GitHub Host Keys (#102, #101)
+ * Update changed GitHub Host Keys (#102, #101)
 
 ### Changed
 
-- Various documentation (README) improvements and additions
-- Change logging to more precisely state that _public_ keys are being printed
+ * Various documentation (README) improvements and additions
+ * Change logging to more precisely state that _public_ keys are being printed
 
 ## v0.5.3 [2021-06-11]
 
 ### Fixed
 
-- Fixed cleanup phase to really terminate the ssh-agent (#80)
-- Fix termination of ssh-agent also on workflow failure (#79)
+ * Fixed cleanup phase to really terminate the ssh-agent (#80)
+ * Fix termination of ssh-agent also on workflow failure (#79)
 
 ### Changed
 
-- Various documentation (README) improvements and additions
+ * Various documentation (README) improvements and additions
 
 ## v0.5.2 [2021-04-07]
 
 ### Fixed
 
-- Use case-insensitive regex matching when scanning key comments (#68, #70, #71)
+ * Use case-insensitive regex matching when scanning key comments (#68, #70, #71)
 
 ### Changed
 
-- Log when a key is _not_ used as a deploy key (#69)
+ * Log when a key is _not_ used as a deploy key (#69)
 
 ## v0.5.1 [2021-03-10]
 
 ### Fixed
 
-- Fix deployment key mapping on Windows virtual environment by using SSH binaries from the Git
+ * Fix deployment key mapping on Windows virtual environment by using SSH binaries from the Git
    suite, terminate ssh-agent upon actio termination on Windows as well (#63)
-- Handle ENOENT exceptions with a graceful message
+ * Handle ENOENT exceptions with a graceful message
 
 ### Changed
 
-- Various documentation (README) improvements and additions
+ * Various documentation (README) improvements and additions
 
 ## v0.5.0 [2021-02-19]
 
 ### Added
 
-- Add support for GitHub Deployment Keys through key comments (#59). Fixes #30, closes #38.
-- Support for container-based workflows and Windows (#17)
+ * Add support for GitHub Deployment Keys through key comments (#59). Fixes #30, closes #38.
+ * Support for container-based workflows and Windows (#17)
 
 ### Fixed
 
-- Fix scripts/build.js to work on Windows (#38)
+ * Fix scripts/build.js to work on Windows (#38)
 
 ### Changed
 
-- Various documentation (README) improvements and additions
+ * Various documentation (README) improvements and additions
 
 ## v0.4.1 [2020-10-07]
 
 ### Fixed
 
-- This action no longer relies on `set-env`, which has been deprecated.
+* This action no longer relies on `set-env`, which has been deprecated.
 
 ## v0.4.0
 
 ### Changed
 
-- A failure to kill the agent in the post-action step will no longer fail the workflow run. That way, you can kill the agent yourself when necessary (#33).
+* A failure to kill the agent in the post-action step will no longer fail the workflow run. That way, you can kill the agent yourself when necessary (#33).
 
 ## v0.3.0 [2020-05-18]
 
 ### Added 
 
-- A new post-action step will automatically clean up the running agent at the end of a job. This helps with self-hosted runners, which are non-ephemeral. (@thommyhh, #27)
+* A new post-action step will automatically clean up the running agent at the end of a job. This helps with self-hosted runners, which are non-ephemeral. (@thommyhh, #27)
 
 ### Changed
 
-- Unless the SSH_AUTH_SOCK is configured explicitly, the SSH agent will now use a random file name for the socket. That way, multiple, concurrent SSH agents can be used on self-hosted runners. (@thommyhh, #27)
+* Unless the SSH_AUTH_SOCK is configured explicitly, the SSH agent will now use a random file name for the socket. That way, multiple, concurrent SSH agents can be used on self-hosted runners. (@thommyhh, #27)
 
 ## v0.2.0 [2020-01-14]
 
 ### Added
 
-- Multiple SSH keys can now be provided (#14, closes #7). Thanks to
+* Multiple SSH keys can now be provided (#14, closes #7). Thanks to
   @webknjaz and @bradmartin for support and tests.
 
-- Catch empty ssh-private-key input values and exit with a helpful
+* Catch empty ssh-private-key input values and exit with a helpful
   error message right away.
 
 ## v0.1.0 [2019-09-15]

README.md

@@ -2,8 +2,9 @@
 
 This action 
 * starts the `ssh-agent`, 
-* exports the `SSH_AUTH_SOCK` environment variable, and
-* loads one or several private SSH key into the agent.
+* exports the `SSH_AUTH_SOCK` environment variable, 
+* loads one or several private SSH key into the agent and
+* configures `known_hosts` for GitHub.com.
 
 It should work in all GitHub Actions virtual environments, including container-based workflows. 
 
@@ -26,7 +27,7 @@ GitHub Actions only have access to the repository they run for. So, in order to
     * In your repository, go to the *Settings > Secrets* menu and create a new secret. In this example, we'll call it `SSH_PRIVATE_KEY`. 
     * Put the contents of the *private* SSH key file into the contents field. <br>
     * This key should start with `-----BEGIN ... PRIVATE KEY-----`, consist of many lines and ends with `-----END ... PRIVATE KEY-----`. 
-5. In your workflow definition file, add the following step. Preferably this would be rather on top, near the `actions/checkout@v4` line.
+5. In your workflow definition file, add the following step. Preferably this would be rather on top, near the `actions/checkout@v2` line.
 
 ```yaml
 # .github/workflows/my-workflow.yml
@@ -34,9 +35,9 @@ jobs:
     my_job:
         ...
         steps:
-            - uses: actions/checkout@v4
-            # Make sure the @v0.9.0 matches the current version of the action
-            - uses: webfactory/ssh-agent@v0.9.0
+            - uses: actions/checkout@v3
+            # Make sure the @v0.7.0 matches the current version of the action
+            - uses: webfactory/ssh-agent@v0.7.0
               with:
                   ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
             # ... other steps
@@ -51,7 +52,7 @@ You can set up different keys as different secrets and pass them all to the acti
 
 ```yaml
 # ... contents as before
-            - uses: webfactory/ssh-agent@v0.9.0
+            - uses: webfactory/ssh-agent@v0.7.0
               with:
                   ssh-private-key: |
                         ${{ secrets.FIRST_KEY }}

action.yml

@@ -20,11 +20,10 @@ inputs:
         description: 'git command'
         required: false
 runs:
-    using: 'node20'
+    using: 'node16'
     main: 'dist/index.js'
     post: 'dist/cleanup.js'
     post-if: 'always()'
-
 branding:
     icon: loader
     color: 'yellow'

cleanup.js

@@ -1,3 +1,4 @@
+const core = require('@actions/core');
 const { execFileSync } = require('child_process');
 const { sshAgentCmd } = require('./paths.js');
 

dist/cleanup.js

@@ -292,13 +292,14 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.issueCommand = void 0;
+exports.prepareKeyValueMessage = exports.issueFileCommand = void 0;
 // We use any as a valid input type
 /* eslint-disable @typescript-eslint/no-explicit-any */
 const fs = __importStar(__webpack_require__(747));
 const os = __importStar(__webpack_require__(87));
+const uuid_1 = __webpack_require__(62);
 const utils_1 = __webpack_require__(82);
-function issueCommand(command, message) {
+function issueFileCommand(command, message) {
     const filePath = process.env[`GITHUB_${command}`];
     if (!filePath) {
         throw new Error(`Unable to find environment variable for file command ${command}`);
@@ -310,7 +311,22 @@ function issueCommand(command, message) {
         encoding: 'utf8'
     });
 }
-exports.issueCommand = issueCommand;
+exports.issueFileCommand = issueFileCommand;
+function prepareKeyValueMessage(key, value) {
+    const delimiter = `ghadelimiter_${uuid_1.v4()}`;
+    const convertedValue = utils_1.toCommandValue(value);
+    // These should realistically never happen, but just in case someone finds a
+    // way to exploit uuid generation let's not allow keys or values that contain
+    // the delimiter.
+    if (key.includes(delimiter)) {
+        throw new Error(`Unexpected input: name should not contain the delimiter "${delimiter}"`);
+    }
+    if (convertedValue.includes(delimiter)) {
+        throw new Error(`Unexpected input: value should not contain the delimiter "${delimiter}"`);
+    }
+    return `${key}<<${delimiter}${os.EOL}${convertedValue}${os.EOL}${delimiter}`;
+}
+exports.prepareKeyValueMessage = prepareKeyValueMessage;
 //# sourceMappingURL=file-command.js.map
 
 /***/ }),
@@ -597,6 +613,7 @@ exports.debug = debug; // for test
 /***/ 175:
 /***/ (function(__unusedmodule, __unusedexports, __webpack_require__) {
 
+const core = __webpack_require__(470);
 const { execFileSync } = __webpack_require__(129);
 const { sshAgentCmd } = __webpack_require__(972);
 
@@ -1667,7 +1684,6 @@ const file_command_1 = __webpack_require__(102);
 const utils_1 = __webpack_require__(82);
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
-const uuid_1 = __webpack_require__(62);
 const oidc_utils_1 = __webpack_require__(742);
 /**
  * The code to exit an action
@@ -1697,20 +1713,9 @@ function exportVariable(name, val) {
     process.env[name] = convertedVal;
     const filePath = process.env['GITHUB_ENV'] || '';
     if (filePath) {
-        const delimiter = `ghadelimiter_${uuid_1.v4()}`;
-        // These should realistically never happen, but just in case someone finds a way to exploit uuid generation let's not allow keys or values that contain the delimiter.
-        if (name.includes(delimiter)) {
-            throw new Error(`Unexpected input: name should not contain the delimiter "${delimiter}"`);
+        return file_command_1.issueFileCommand('ENV', file_command_1.prepareKeyValueMessage(name, val));
     }
-        if (convertedVal.includes(delimiter)) {
-            throw new Error(`Unexpected input: value should not contain the delimiter "${delimiter}"`);
-        }
-        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;
-        file_command_1.issueCommand('ENV', commandValue);
-    }
-    else {
     command_1.issueCommand('set-env', { name }, convertedVal);
-    }
 }
 exports.exportVariable = exportVariable;
 /**
@@ -1728,7 +1733,7 @@ exports.setSecret = setSecret;
 function addPath(inputPath) {
     const filePath = process.env['GITHUB_PATH'] || '';
     if (filePath) {
-        file_command_1.issueCommand('PATH', inputPath);
+        file_command_1.issueFileCommand('PATH', inputPath);
     }
     else {
         command_1.issueCommand('add-path', {}, inputPath);
@@ -1768,7 +1773,10 @@ function getMultilineInput(name, options) {
     const inputs = getInput(name, options)
         .split('\n')
         .filter(x => x !== '');
+    if (options && options.trimWhitespace === false) {
         return inputs;
+    }
+    return inputs.map(input => input.trim());
 }
 exports.getMultilineInput = getMultilineInput;
 /**
@@ -1801,8 +1809,12 @@ exports.getBooleanInput = getBooleanInput;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function setOutput(name, value) {
+    const filePath = process.env['GITHUB_OUTPUT'] || '';
+    if (filePath) {
+        return file_command_1.issueFileCommand('OUTPUT', file_command_1.prepareKeyValueMessage(name, value));
+    }
     process.stdout.write(os.EOL);
-    command_1.issueCommand('set-output', { name }, value);
+    command_1.issueCommand('set-output', { name }, utils_1.toCommandValue(value));
 }
 exports.setOutput = setOutput;
 /**
@@ -1931,7 +1943,11 @@ exports.group = group;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function saveState(name, value) {
-    command_1.issueCommand('save-state', { name }, value);
+    const filePath = process.env['GITHUB_STATE'] || '';
+    if (filePath) {
+        return file_command_1.issueFileCommand('STATE', file_command_1.prepareKeyValueMessage(name, value));
+    }
+    command_1.issueCommand('save-state', { name }, utils_1.toCommandValue(value));
 }
 exports.saveState = saveState;
 /**
@@ -2821,10 +2837,11 @@ exports.default = _default;
 /***/ (function(module, __unusedexports, __webpack_require__) {
 
 const os = __webpack_require__(87);
-const core = __webpack_require__(470);
 
-const defaults = (process.env['OS'] != 'Windows_NT') ? {
-    homePath: os.homedir(),
+module.exports = (process.env['OS'] != 'Windows_NT') ? {
+    // Use getent() system call, since this is what ssh does; makes a difference in Docker-based
+    // Action runs, where $HOME is different from the pwent
+    homePath: os.userInfo().homedir,
     sshAgentCmdDefault: 'ssh-agent',
     sshAddCmdDefault: 'ssh-add',
     gitCmdDefault: 'git'
@@ -2836,17 +2853,6 @@ const defaults = (process.env['OS'] != 'Windows_NT') ? {
     gitCmdDefault: 'c://progra~1//git//bin//git.exe'
 };
 
-const sshAgentCmdInput = core.getInput('ssh-agent-cmd');
-const sshAddCmdInput = core.getInput('ssh-add-cmd');
-const gitCmdInput = core.getInput('git-cmd');
-
-module.exports = {
-    homePath: defaults.homePath,
-    sshAgentCmd: sshAgentCmdInput !== '' ? sshAgentCmdInput : defaults.sshAgentCmdDefault,
-    sshAddCmd: sshAddCmdInput !== '' ? sshAddCmdInput : defaults.sshAddCmdDefault,
-    gitCmd: gitCmdInput !== '' ? gitCmdInput : defaults.gitCmdDefault,
-};
-
 
 /***/ })
 

dist/index.js

@@ -292,13 +292,14 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.issueCommand = void 0;
+exports.prepareKeyValueMessage = exports.issueFileCommand = void 0;
 // We use any as a valid input type
 /* eslint-disable @typescript-eslint/no-explicit-any */
 const fs = __importStar(__webpack_require__(747));
 const os = __importStar(__webpack_require__(87));
+const uuid_1 = __webpack_require__(62);
 const utils_1 = __webpack_require__(82);
-function issueCommand(command, message) {
+function issueFileCommand(command, message) {
     const filePath = process.env[`GITHUB_${command}`];
     if (!filePath) {
         throw new Error(`Unable to find environment variable for file command ${command}`);
@@ -310,7 +311,22 @@ function issueCommand(command, message) {
         encoding: 'utf8'
     });
 }
-exports.issueCommand = issueCommand;
+exports.issueFileCommand = issueFileCommand;
+function prepareKeyValueMessage(key, value) {
+    const delimiter = `ghadelimiter_${uuid_1.v4()}`;
+    const convertedValue = utils_1.toCommandValue(value);
+    // These should realistically never happen, but just in case someone finds a
+    // way to exploit uuid generation let's not allow keys or values that contain
+    // the delimiter.
+    if (key.includes(delimiter)) {
+        throw new Error(`Unexpected input: name should not contain the delimiter "${delimiter}"`);
+    }
+    if (convertedValue.includes(delimiter)) {
+        throw new Error(`Unexpected input: value should not contain the delimiter "${delimiter}"`);
+    }
+    return `${key}<<${delimiter}${os.EOL}${convertedValue}${os.EOL}${delimiter}`;
+}
+exports.prepareKeyValueMessage = prepareKeyValueMessage;
 //# sourceMappingURL=file-command.js.map
 
 /***/ }),
@@ -322,12 +338,20 @@ const core = __webpack_require__(470);
 const child_process = __webpack_require__(129);
 const fs = __webpack_require__(747);
 const crypto = __webpack_require__(417);
-const { homePath, sshAgentCmd, sshAddCmd, gitCmd } = __webpack_require__(972);
+const { homePath, sshAgentCmdDefault, sshAddCmdDefault, gitCmdDefault } = __webpack_require__(972);
 
 try {
     const privateKey = core.getInput('ssh-private-key');
     const logPublicKey = core.getBooleanInput('log-public-key', {default: true});
 
+    const sshAgentCmdInput = core.getInput('ssh-agent-cmd');
+    const sshAddCmdInput = core.getInput('ssh-add-cmd');
+    const gitCmdInput = core.getInput('git-cmd');
+
+    const sshAgentCmd = sshAgentCmdInput ? sshAgentCmdInput : sshAgentCmdDefault;
+    const sshAddCmd = sshAddCmdInput ? sshAddCmdInput : sshAddCmdDefault;
+    const gitCmd = gitCmdInput ? gitCmdInput : gitCmdDefault;
+
     if (!privateKey) {
         core.setFailed("The ssh-private-key argument is empty. Maybe the secret has not been configured, or you are using a wrong secret name in your workflow file.");
 
@@ -1741,7 +1765,6 @@ const file_command_1 = __webpack_require__(102);
 const utils_1 = __webpack_require__(82);
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
-const uuid_1 = __webpack_require__(62);
 const oidc_utils_1 = __webpack_require__(742);
 /**
  * The code to exit an action
@@ -1771,20 +1794,9 @@ function exportVariable(name, val) {
     process.env[name] = convertedVal;
     const filePath = process.env['GITHUB_ENV'] || '';
     if (filePath) {
-        const delimiter = `ghadelimiter_${uuid_1.v4()}`;
-        // These should realistically never happen, but just in case someone finds a way to exploit uuid generation let's not allow keys or values that contain the delimiter.
-        if (name.includes(delimiter)) {
-            throw new Error(`Unexpected input: name should not contain the delimiter "${delimiter}"`);
+        return file_command_1.issueFileCommand('ENV', file_command_1.prepareKeyValueMessage(name, val));
     }
-        if (convertedVal.includes(delimiter)) {
-            throw new Error(`Unexpected input: value should not contain the delimiter "${delimiter}"`);
-        }
-        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;
-        file_command_1.issueCommand('ENV', commandValue);
-    }
-    else {
     command_1.issueCommand('set-env', { name }, convertedVal);
-    }
 }
 exports.exportVariable = exportVariable;
 /**
@@ -1802,7 +1814,7 @@ exports.setSecret = setSecret;
 function addPath(inputPath) {
     const filePath = process.env['GITHUB_PATH'] || '';
     if (filePath) {
-        file_command_1.issueCommand('PATH', inputPath);
+        file_command_1.issueFileCommand('PATH', inputPath);
     }
     else {
         command_1.issueCommand('add-path', {}, inputPath);
@@ -1842,7 +1854,10 @@ function getMultilineInput(name, options) {
     const inputs = getInput(name, options)
         .split('\n')
         .filter(x => x !== '');
+    if (options && options.trimWhitespace === false) {
         return inputs;
+    }
+    return inputs.map(input => input.trim());
 }
 exports.getMultilineInput = getMultilineInput;
 /**
@@ -1875,8 +1890,12 @@ exports.getBooleanInput = getBooleanInput;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function setOutput(name, value) {
+    const filePath = process.env['GITHUB_OUTPUT'] || '';
+    if (filePath) {
+        return file_command_1.issueFileCommand('OUTPUT', file_command_1.prepareKeyValueMessage(name, value));
+    }
     process.stdout.write(os.EOL);
-    command_1.issueCommand('set-output', { name }, value);
+    command_1.issueCommand('set-output', { name }, utils_1.toCommandValue(value));
 }
 exports.setOutput = setOutput;
 /**
@@ -2005,7 +2024,11 @@ exports.group = group;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function saveState(name, value) {
-    command_1.issueCommand('save-state', { name }, value);
+    const filePath = process.env['GITHUB_STATE'] || '';
+    if (filePath) {
+        return file_command_1.issueFileCommand('STATE', file_command_1.prepareKeyValueMessage(name, value));
+    }
+    command_1.issueCommand('save-state', { name }, utils_1.toCommandValue(value));
 }
 exports.saveState = saveState;
 /**
@@ -2895,10 +2918,11 @@ exports.default = _default;
 /***/ (function(module, __unusedexports, __webpack_require__) {
 
 const os = __webpack_require__(87);
-const core = __webpack_require__(470);
 
-const defaults = (process.env['OS'] != 'Windows_NT') ? {
-    homePath: os.homedir(),
+module.exports = (process.env['OS'] != 'Windows_NT') ? {
+    // Use getent() system call, since this is what ssh does; makes a difference in Docker-based
+    // Action runs, where $HOME is different from the pwent
+    homePath: os.userInfo().homedir,
     sshAgentCmdDefault: 'ssh-agent',
     sshAddCmdDefault: 'ssh-add',
     gitCmdDefault: 'git'
@@ -2910,17 +2934,6 @@ const defaults = (process.env['OS'] != 'Windows_NT') ? {
     gitCmdDefault: 'c://progra~1//git//bin//git.exe'
 };
 
-const sshAgentCmdInput = core.getInput('ssh-agent-cmd');
-const sshAddCmdInput = core.getInput('ssh-add-cmd');
-const gitCmdInput = core.getInput('git-cmd');
-
-module.exports = {
-    homePath: defaults.homePath,
-    sshAgentCmd: sshAgentCmdInput !== '' ? sshAgentCmdInput : defaults.sshAgentCmdDefault,
-    sshAddCmd: sshAddCmdInput !== '' ? sshAddCmdInput : defaults.sshAddCmdDefault,
-    gitCmd: gitCmdInput !== '' ? gitCmdInput : defaults.gitCmdDefault,
-};
-
 
 /***/ })
 

index.js

@@ -2,12 +2,20 @@ const core = require('@actions/core');
 const child_process = require('child_process');
 const fs = require('fs');
 const crypto = require('crypto');
-const { homePath, sshAgentCmd, sshAddCmd, gitCmd } = require('./paths.js');
+const { homePath, sshAgentCmdDefault, sshAddCmdDefault, gitCmdDefault } = require('./paths.js');
 
 try {
     const privateKey = core.getInput('ssh-private-key');
     const logPublicKey = core.getBooleanInput('log-public-key', {default: true});
 
+    const sshAgentCmdInput = core.getInput('ssh-agent-cmd');
+    const sshAddCmdInput = core.getInput('ssh-add-cmd');
+    const gitCmdInput = core.getInput('git-cmd');
+
+    const sshAgentCmd = sshAgentCmdInput ? sshAgentCmdInput : sshAgentCmdDefault;
+    const sshAddCmd = sshAddCmdInput ? sshAddCmdInput : sshAddCmdDefault;
+    const gitCmd = gitCmdInput ? gitCmdInput : gitCmdDefault;
+
     if (!privateKey) {
         core.setFailed("The ssh-private-key argument is empty. Maybe the secret has not been configured, or you are using a wrong secret name in your workflow file.");
 

paths.js

@@ -1,30 +1,16 @@
-const os = require("os");
-const core = require("@actions/core");
+const os = require('os');
 
-const defaults =
-  process.env["OS"] != "Windows_NT"
-    ? {
-        homePath: os.homedir(),
-        sshAgentCmdDefault: "ssh-agent",
-        sshAddCmdDefault: "ssh-add",
-        gitCmdDefault: "git",
-      }
-    : {
+module.exports = (process.env['OS'] != 'Windows_NT') ? {
+    // Use getent() system call, since this is what ssh does; makes a difference in Docker-based
+    // Action runs, where $HOME is different from the pwent
+    homePath: os.userInfo().homedir,
+    sshAgentCmdDefault: 'ssh-agent',
+    sshAddCmdDefault: 'ssh-add',
+    gitCmdDefault: 'git'
+} : {
     // Assuming GitHub hosted `windows-*` runners for now
     homePath: os.homedir(),
-        sshAgentCmdDefault: "c://progra~1//git//usr//bin//ssh-agent.exe",
-        sshAddCmdDefault: "c://progra~1//git//usr//bin//ssh-add.exe",
-        gitCmdDefault: "c://progra~1//git//bin//git.exe",
-      };
-
-const sshAgentCmdInput = core.getInput("ssh-agent-cmd");
-const sshAddCmdInput = core.getInput("ssh-add-cmd");
-const gitCmdInput = core.getInput("git-cmd");
-
-module.exports = {
-  homePath: defaults.homePath,
-  sshAgentCmd:
-    sshAgentCmdInput !== "" ? sshAgentCmdInput : defaults.sshAgentCmdDefault,
-  sshAddCmd: sshAddCmdInput !== "" ? sshAddCmdInput : defaults.sshAddCmdDefault,
-  gitCmd: gitCmdInput !== "" ? gitCmdInput : defaults.gitCmdDefault,
+    sshAgentCmdDefault: 'c://progra~1//git//usr//bin//ssh-agent.exe',
+    sshAddCmdDefault: 'c://progra~1//git//usr//bin//ssh-add.exe',
+    gitCmdDefault: 'c://progra~1//git//bin//git.exe'
 };