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97 lines
2 KiB
Markdown
97 lines
2 KiB
Markdown
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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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#### Inputs/Outputs
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You can use this library to get inputs or set outputs:
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```js
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const core = require('@actions/core');
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const myInput = core.getInput('inputName', { required: true });
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// Do stuff
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core.setOutput('outputKey', 'outputVal');
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```
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#### Exporting variables
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You can also export variables for future steps. Variables get set in the environment.
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```js
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const core = require('@actions/core');
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// Do stuff
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core.exportVariable('envVar', 'Val');
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```
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#### PATH Manipulation
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You can explicitly add items to the path for all remaining steps in a workflow:
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```js
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const core = require('@actions/core');
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core.addPath('pathToTool');
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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:
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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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#### 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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// Do stuff
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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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