add node modules
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node_modules/@actions/core/README.md
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node_modules/@actions/core/README.md
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# `@actions/core`
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> Core functions for setting results, logging, registering secrets and exporting variables across actions
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## Usage
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### Import the package
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```js
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// javascript
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const core = require('@actions/core');
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// typescript
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import * as core from '@actions/core';
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```
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#### Inputs/Outputs
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Action inputs can be read with `getInput` which returns a `string` or `getBooleanInput` which parses a boolean based on the [yaml 1.2 specification](https://yaml.org/spec/1.2/spec.html#id2804923). If `required` set to be false, the input should have a default value in `action.yml`.
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Outputs can be set with `setOutput` which makes them available to be mapped into inputs of other actions to ensure they are decoupled.
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```js
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const myInput = core.getInput('inputName', { required: true });
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const myBooleanInput = core.getBooleanInput('booleanInputName', { required: true });
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const myMultilineInput = core.getMultilineInput('multilineInputName', { required: true });
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core.setOutput('outputKey', 'outputVal');
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```
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#### Exporting variables
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Since each step runs in a separate process, you can use `exportVariable` to add it to this step and future steps environment blocks.
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```js
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core.exportVariable('envVar', 'Val');
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```
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#### Setting a secret
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Setting a secret registers the secret with the runner to ensure it is masked in logs.
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```js
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core.setSecret('myPassword');
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```
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#### PATH Manipulation
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To make a tool's path available in the path for the remainder of the job (without altering the machine or containers state), use `addPath`. The runner will prepend the path given to the jobs PATH.
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```js
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core.addPath('/path/to/mytool');
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```
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#### Exit codes
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You should use this library to set the failing exit code for your action. If status is not set and the script runs to completion, that will lead to a success.
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```js
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const core = require('@actions/core');
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try {
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// Do stuff
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}
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catch (err) {
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// setFailed logs the message and sets a failing exit code
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core.setFailed(`Action failed with error ${err}`);
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}
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```
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Note that `setNeutral` is not yet implemented in actions V2 but equivalent functionality is being planned.
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#### Logging
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Finally, this library provides some utilities for logging. Note that debug logging is hidden from the logs by default. This behavior can be toggled by enabling the [Step Debug Logs](../../docs/action-debugging.md#step-debug-logs).
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```js
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const core = require('@actions/core');
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const myInput = core.getInput('input');
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try {
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core.debug('Inside try block');
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if (!myInput) {
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core.warning('myInput was not set');
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}
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if (core.isDebug()) {
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// curl -v https://github.com
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} else {
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// curl https://github.com
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}
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// Do stuff
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core.info('Output to the actions build log')
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core.notice('This is a message that will also emit an annotation')
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}
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catch (err) {
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core.error(`Error ${err}, action may still succeed though`);
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}
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```
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This library can also wrap chunks of output in foldable groups.
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```js
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const core = require('@actions/core')
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// Manually wrap output
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core.startGroup('Do some function')
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doSomeFunction()
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core.endGroup()
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// Wrap an asynchronous function call
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const result = await core.group('Do something async', async () => {
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const response = await doSomeHTTPRequest()
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return response
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})
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```
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#### Annotations
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This library has 3 methods that will produce [annotations](https://docs.github.com/en/rest/reference/checks#create-a-check-run).
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```js
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core.error('This is a bad error, action may still succeed though.')
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core.warning('Something went wrong, but it\'s not bad enough to fail the build.')
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core.notice('Something happened that you might want to know about.')
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```
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These will surface to the UI in the Actions page and on Pull Requests. They look something like this:
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These annotations can also be attached to particular lines and columns of your source files to show exactly where a problem is occuring.
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These options are:
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```typescript
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export interface AnnotationProperties {
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/**
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* A title for the annotation.
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*/
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title?: string
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/**
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* The name of the file for which the annotation should be created.
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*/
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file?: string
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/**
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* The start line for the annotation.
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*/
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startLine?: number
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/**
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* The end line for the annotation. Defaults to `startLine` when `startLine` is provided.
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*/
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endLine?: number
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/**
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* The start column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
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*/
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startColumn?: number
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/**
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* The end column for the annotation. Cannot be sent when `startLine` and `endLine` are different values.
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* Defaults to `startColumn` when `startColumn` is provided.
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*/
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endColumn?: number
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}
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```
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#### Styling output
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Colored output is supported in the Action logs via standard [ANSI escape codes](https://en.wikipedia.org/wiki/ANSI_escape_code). 3/4 bit, 8 bit and 24 bit colors are all supported.
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Foreground colors:
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```js
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// 3/4 bit
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core.info('\u001b[35mThis foreground will be magenta')
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// 8 bit
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core.info('\u001b[38;5;6mThis foreground will be cyan')
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// 24 bit
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core.info('\u001b[38;2;255;0;0mThis foreground will be bright red')
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```
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Background colors:
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```js
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// 3/4 bit
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core.info('\u001b[43mThis background will be yellow');
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// 8 bit
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core.info('\u001b[48;5;6mThis background will be cyan')
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// 24 bit
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core.info('\u001b[48;2;255;0;0mThis background will be bright red')
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```
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Special styles:
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```js
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core.info('\u001b[1mBold text')
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core.info('\u001b[3mItalic text')
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core.info('\u001b[4mUnderlined text')
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```
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ANSI escape codes can be combined with one another:
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```js
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core.info('\u001b[31;46mRed foreground with a cyan background and \u001b[1mbold text at the end');
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```
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> Note: Escape codes reset at the start of each line
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```js
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core.info('\u001b[35mThis foreground will be magenta')
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core.info('This foreground will reset to the default')
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```
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Manually typing escape codes can be a little difficult, but you can use third party modules such as [ansi-styles](https://github.com/chalk/ansi-styles).
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```js
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const style = require('ansi-styles');
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core.info(style.color.ansi16m.hex('#abcdef') + 'Hello world!')
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```
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#### Action state
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You can use this library to save state and get state for sharing information between a given wrapper action:
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**action.yml**:
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```yaml
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name: 'Wrapper action sample'
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inputs:
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name:
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default: 'GitHub'
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runs:
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using: 'node12'
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main: 'main.js'
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post: 'cleanup.js'
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```
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In action's `main.js`:
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```js
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const core = require('@actions/core');
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core.saveState("pidToKill", 12345);
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```
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In action's `cleanup.js`:
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```js
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const core = require('@actions/core');
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var pid = core.getState("pidToKill");
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process.kill(pid);
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```
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#### OIDC Token
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You can use these methods to interact with the GitHub OIDC provider and get a JWT ID token which would help to get access token from third party cloud providers.
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**Method Name**: getIDToken()
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**Inputs**
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audience : optional
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**Outputs**
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A [JWT](https://jwt.io/) ID Token
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In action's `main.ts`:
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```js
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const core = require('@actions/core');
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async function getIDTokenAction(): Promise<void> {
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const audience = core.getInput('audience', {required: false})
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const id_token1 = await core.getIDToken() // ID Token with default audience
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const id_token2 = await core.getIDToken(audience) // ID token with custom audience
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// this id_token can be used to get access token from third party cloud providers
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}
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getIDTokenAction()
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```
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In action's `actions.yml`:
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```yaml
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name: 'GetIDToken'
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description: 'Get ID token from Github OIDC provider'
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inputs:
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audience:
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description: 'Audience for which the ID token is intended for'
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required: false
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outputs:
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id_token1:
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description: 'ID token obtained from OIDC provider'
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id_token2:
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description: 'ID token obtained from OIDC provider'
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runs:
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using: 'node12'
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main: 'dist/index.js'
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```
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#### Filesystem path helpers
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You can use these methods to manipulate file paths across operating systems.
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The `toPosixPath` function converts input paths to Posix-style (Linux) paths.
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The `toWin32Path` function converts input paths to Windows-style paths. These
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functions work independently of the underlying runner operating system.
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```js
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toPosixPath('\\foo\\bar') // => /foo/bar
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toWin32Path('/foo/bar') // => \foo\bar
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```
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The `toPlatformPath` function converts input paths to the expected value on the runner's operating system.
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```js
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// On a Windows runner.
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toPlatformPath('/foo/bar') // => \foo\bar
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// On a Linux runner.
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toPlatformPath('\\foo\\bar') // => /foo/bar
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```
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#### Platform helper
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Provides shorthands for getting information about platform action is running on.
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```js
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import { platform } from '@actions/core'
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/* equals to a call of os.platform() */
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platform.platform // 'win32' | 'darwin' | 'linux' | 'freebsd' | 'openbsd' | 'android' | 'cygwin' | 'sunos'
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/* equals to a call of os.arch() */
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platform.arch // 'x64' | 'arm' | 'arm64' | 'ia32' | 'mips' | 'mipsel' | 'ppc' | 'ppc64' | 'riscv64' | 's390' | 's390x'
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/* common shorthands for platform-specific logic */
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platform.isWindows // true
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platform.isMacOS // false
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platform.isLinux // false
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/* run platform-specific script to get more details about the exact platform, works on Windows, MacOS and Linux */
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const {
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name, // Microsoft Windows 11 Enterprise
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version, // 10.0.22621
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} = await platform.getDetails()
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```
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#### Populating job summary
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These methods can be used to populate a [job summary](https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#adding-a-job-summary). A job summary is a buffer that can be added to throughout your job via `core.summary` methods.
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Job summaries when complete must be written to the summary buffer file via the `core.summary.write()` method.
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All methods except `addRaw()` utilize the `addRaw()` method to append to the buffer, followed by an EOL using the `addEOL()` method.
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```typescript
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// Write raw text, optionally add an EOL after the content, defaults to false
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core.summary.addRaw('Some content here :speech_balloon:', true)
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// Output: Some content here :speech_balloon:\n
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// Add an operating system-specific end-of-line marker
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core.summary.addEOL()
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// Output (POSIX): \n
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// Output (Windows): \r\n
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// Add a codeblock with an optional language for syntax highlighting
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core.summary.addCodeBlock('console.log(\'hello world\')', 'javascript')
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// Output: <pre lang="javascript"><code>console.log('hello world')</code></pre>
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// Add a list, second parameter indicates if list is ordered, defaults to false
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core.summary.addList(['item1','item2','item3'], true)
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// Output: <ol><li>item1</li><li>item2</li><li>item3</li></ol>
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// Add a collapsible HTML details element
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core.summary.addDetails('Label', 'Some detail that will be collapsed')
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// Output: <details><summary>Label</summary>Some detail that will be collapsed</details>
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// Add an image, image options parameter is optional, you can supply one of or both width and height in pixels
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core.summary.addImage('example.png', 'alt description of img', {width: '100', height: '100'})
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// Output: <img src="example.png" alt="alt description of img" width="100" height="100">
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// Add an HTML section heading element, optionally pass a level that translates to 'hX' ie. h2. Defaults to h1
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core.summary.addHeading('My Heading', '2')
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// Output: <h2>My Heading</h2>
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// Add an HTML thematic break <hr>
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core.summary.addSeparator()
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// Output: <hr>
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// Add an HTML line break <br>
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core.summary.addBreak()
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// Output: <br>
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// Add an HTML blockquote with an optional citation
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core.summary.addQuote('To be or not to be', 'Shakespeare')
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// Output: <blockquote cite="Shakespeare">To be or not to be</blockquote>
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// Add an HTML anchor tag
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core.summary.addLink('click here', 'https://github.com')
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// Output: <a href="https://github.com">click here</a>
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```
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Tables are added using the `addTable()` method, and an array of `SummaryTableRow`.
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```typescript
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export type SummaryTableRow = (SummaryTableCell | string)[]
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export interface SummaryTableCell {
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/**
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* Cell content
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*/
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data: string
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/**
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* Render cell as header
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* (optional) default: false
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*/
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header?: boolean
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/**
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* Number of columns the cell extends
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* (optional) default: '1'
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*/
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colspan?: string
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/**
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* Number of rows the cell extends
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* (optional) default: '1'
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*/
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rowspan?: string
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}
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```
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For example
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```typescript
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const tableData = [
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{data: 'Header1', header: true},
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{data: 'Header2', header: true},
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{data: 'Header3', header: true},
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{data: 'MyData1'},
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{data: 'MyData2'},
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{data: 'MyData3'}
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]
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// Add an HTML table
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core.summary.addTable([tableData])
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// Output: <table><tr><th>Header1</th><th>Header2</th><th>Header3</th></tr><tr></tr><td>MyData1</td><td>MyData2</td><td>MyData3</td></tr></table>
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```
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In addition to job summary content, there are utility functions for interfacing with the buffer.
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```typescript
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// Empties the summary buffer AND wipes the summary file on disk
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core.summary.clear()
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// Returns the current summary buffer as a string
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core.summary.stringify()
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// If the summary buffer is empty
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core.summary.isEmptyBuffer()
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// Resets the summary buffer without writing to the summary file on disk
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core.summary.emptyBuffer()
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// Writes text in the buffer to the summary buffer file and empties the buffer, optionally overwriting all existing content in the summary file with buffer contents. Defaults to false.
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core.summary.write({overwrite: true})
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```
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