242 lines
8.7 KiB
Markdown
242 lines
8.7 KiB
Markdown
# Upload-Artifact v2
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This uploads artifacts from your workflow allowing you to share data between jobs and store data once a workflow is complete.
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See also [download-artifact](https://github.com/actions/download-artifact).
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# What's new
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- Easier upload
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- Specify a wildcard pattern
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- Specify an individual file
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- Specify a directory (previously you were limited to only this option)
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- Multi path upload
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- Use a combination of individual files, wildcards or directories
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- Support for excluding certain files
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- Upload an artifact without providing a name
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- Fix for artifact uploads sometimes not working with containers
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- Proxy support out of the box
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- Port entire action to typescript from a runner plugin so it is easier to collaborate and accept contributions
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Refer [here](https://github.com/actions/upload-artifact/tree/releases/v1) for the previous version
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# Usage
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See [action.yml](action.yml)
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### Upload an Individual File
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```yaml
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steps:
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- uses: actions/checkout@v2
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- run: mkdir -p path/to/artifact
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- run: echo hello > path/to/artifact/world.txt
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- uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: path/to/artifact/world.txt
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```
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### Upload an Entire Directory
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```yaml
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- uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: path/to/artifact/ # or path/to/artifact
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```
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### Upload using a Wildcard Pattern
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```yaml
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- uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: path/**/[abc]rtifac?/*
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```
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### Upload using Multiple Paths and Exclusions
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```yaml
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- uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: |
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path/output/bin/
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path/output/test-results
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!path/**/*.tmp
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```
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For supported wildcards along with behavior and documentation, see [@actions/glob](https://github.com/actions/toolkit/tree/main/packages/glob) which is used internally to search for files.
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If a wildcard pattern is used, the path hierarchy will be preserved after the first wildcard pattern.
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```
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path/to/*/directory/foo?.txt =>
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∟ path/to/some/directory/foo1.txt
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∟ path/to/some/directory/foo2.txt
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∟ path/to/other/directory/foo1.txt
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would be flattened and uploaded as =>
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∟ some/directory/foo1.txt
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∟ some/directory/foo2.txt
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∟ other/directory/foo1.txt
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```
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If multiple paths are provided as input, the least common ancestor of all the search paths will be used as the root directory of the artifact. Exclude paths do not effect the directory structure.
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Relative and absolute file paths are both allowed. Relative paths are rooted against the current working directory. Paths that begin with a wildcard character should be quoted to avoid being interpreted as YAML aliases.
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The [@actions/artifact](https://github.com/actions/toolkit/tree/main/packages/artifact) package is used internally to handle most of the logic around uploading an artifact. There is extra documentation around upload limitations and behavior in the toolkit repo that is worth checking out.
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### Customization if no files are found
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If a path (or paths), result in no files being found for the artifact, the action will succeed but print out a warning. In certain scenarios it may be desirable to fail the action or suppress the warning. The `if-no-files-found` option allows you to customize the behavior of the action if no files are found.
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```yaml
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- uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: path/to/artifact/
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if-no-files-found: error # 'warn' or 'ignore' are also available, defaults to `warn`
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```
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### Conditional Artifact Upload
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To upload artifacts only when the previous step of a job failed, use [`if: failure()`](https://help.github.com/en/articles/contexts-and-expression-syntax-for-github-actions#job-status-check-functions):
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```yaml
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- uses: actions/upload-artifact@v2
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if: failure()
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with:
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name: my-artifact
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path: path/to/artifact/
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```
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### Uploading without an artifact name
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You can upload an artifact without specifying a name
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```yaml
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- uses: actions/upload-artifact@v2
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with:
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path: path/to/artifact/world.txt
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```
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If not provided, `artifact` will be used as the default name which will manifest itself in the UI after upload.
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### Uploading to the same artifact
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Each artifact behaves as a file share. Uploading to the same artifact multiple times in the same workflow can overwrite and append already uploaded files
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```yaml
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- run: echo hi > world.txt
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- uses: actions/upload-artifact@v2
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with:
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path: world.txt
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- run: echo howdy > extra-file.txt
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- uses: actions/upload-artifact@v2
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with:
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path: extra-file.txt
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- run: echo hello > world.txt
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- uses: actions/upload-artifact@v2
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with:
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path: world.txt
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```
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With the following example, the available artifact (named `artifact` which is the default if no name is provided) would contain both `world.txt` (`hello`) and `extra-file.txt` (`howdy`).
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> **_Warning:_** Be careful when uploading to the same artifact via multiple jobs as artifacts may become corrupted
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```yaml
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strategy:
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matrix:
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node-version: [8.x, 10.x, 12.x, 13.x]
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steps:
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- name: 'Create a file'
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run: echo ${{ matrix.node-version }} > my_file.txt
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- name: 'Accidently upload to the same artifact via multiple jobs'
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uses: 'actions/upload-artifact@v2'
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with:
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name: my-artifact
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path: ${{ github.workspace }}
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```
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In the above example, four jobs will upload four different files to the same artifact but there will only be one file available when `my-artifact` is downloaded. Each job overwrites what was previously uploaded. To ensure that jobs don't overwrite existing artifacts, use a different name per job.
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```yaml
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uses: 'actions/upload-artifact@v2'
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with:
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name: my-artifact ${{ matrix.node-version }}
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path: ${{ github.workspace }}
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```
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### Environment Variables and Tilde Expansion
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You can use `~` in the path input as a substitute for `$HOME`. Basic tilde expansion is supported.
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```yaml
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- run: |
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mkdir -p ~/new/artifact
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echo hello > ~/new/artifact/world.txt
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- uses: actions/upload-artifact@v2
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with:
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name: 'Artifacts-V2'
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path: '~/new/**/*'
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```
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Environment variables along with context expressions can also be used for input. For documentation see [context and expression syntax](https://help.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions).
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```yaml
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env:
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name: my-artifact
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steps:
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- run: |
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mkdir -p ${{ github.workspace }}/artifact
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echo hello > ${{ github.workspace }}/artifact/world.txt
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- uses: actions/upload-artifact@v2
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with:
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name: ${{ env.name }}-name
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path: ${{ github.workspace }}/artifact/**/*
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```
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## Where does the upload go?
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In the top right corner of a workflow run, once the run is over, if you used this action, there will be a `Artifacts` dropdown which you can download items from. Here's a screenshot of what it looks like<br/>
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<img src="https://user-images.githubusercontent.com/16109154/72556687-20235a80-386d-11ea-9e2a-b534faa77083.png" width="375" height="140">
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There is a trashcan icon that can be used to delete the artifact. This icon will only appear for users who have write permissions to the repository.
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# Limitations
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### Permission Loss
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:exclamation: File permissions are not maintained during artifact upload :exclamation: For example, if you make a file executable using `chmod` and then upload that file, post-download the file is no longer guaranteed to be set as an executable.
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### Case Insensitive Uploads
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:exclamation: File uploads are case insensitive :exclamation: If you upload `A.txt` and `a.txt` with the same root path, only a single file will be saved and available during download.
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### Maintaining file permissions and case sensitive files
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If file permissions and case sensitivity are required, you can `tar` all of your files together before artifact upload. Post download, the `tar` file will maintain file permissions and case sensitivity.
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```yaml
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- name: 'Tar files'
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run: tar -cvf my_files.tar /path/to/my/directory
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- name: 'Upload Artifact'
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uses: actions/upload-artifact@v2
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with:
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name: my-artifact
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path: my_files.tar
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```
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## Additional Documentation
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See [persisting workflow data using artifacts](https://help.github.com/en/actions/configuring-and-managing-workflows/persisting-workflow-data-using-artifacts) for additional examples and tips.
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See extra documentation for the [@actions/artifact](https://github.com/actions/toolkit/blob/master/packages/artifact/docs/additional-information.md) package that is used internally regarding certain behaviors and limitations.
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# License
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The scripts and documentation in this project are released under the [MIT License](LICENSE)
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