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Merge pull request #287 from actions/robherley/sync-migration-docs

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Sync migration docs with upload-artifact
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Rob Herley 2024-01-31 12:42:51 -05:00 committed by GitHub
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@ -2,6 +2,8 @@
- [Migration](#migration)
- [Multiple uploads to the same named Artifact](#multiple-uploads-to-the-same-named-artifact)
- [Overwriting an Artifact](#overwriting-an-artifact)
- [Merging multiple artifacts](#merging-multiple-artifacts)
Several behavioral differences exist between Artifact actions `v3` and below vs `v4`. This document outlines common scenarios in `v3`, and how they would be handled in `v4`.
@ -31,6 +33,7 @@ jobs:
- name: Download All Artifacts
uses: actions/download-artifact@v3
with:
name: my-artifact
path: my-artifact
- run: ls -R my-artifact
```
@ -71,6 +74,7 @@ jobs:
- uses: actions/download-artifact@v3
+ uses: actions/download-artifact@v4
with:
- name: my-artifact
path: my-artifact
+ pattern: my-artifact-*
+ merge-multiple: true
@ -78,3 +82,127 @@ jobs:
```
In `v4`, the new `pattern:` input will filter the downloaded Artifacts to match the name specified. The new `merge-multiple:` input will support downloading multiple Artifacts to the same directory. If the files within the Artifacts have the same name, the last writer wins.
## Overwriting an Artifact
In `v3`, the contents of an Artifact were mutable so something like the following was possible:
```yaml
jobs:
upload:
runs-on: ubuntu-latest
steps:
- name: Create a file
run: echo "hello world" > my-file.txt
- name: Upload Artifact
uses: actions/upload-artifact@v3
with:
name: my-artifact # NOTE: same artifact name
path: my-file.txt
upload-again:
needs: upload
runs-on: ubuntu-latest
steps:
- name: Create a different file
run: echo "goodbye world" > my-file.txt
- name: Upload Artifact
uses: actions/upload-artifact@v3
with:
name: my-artifact # NOTE: same artifact name
path: my-file.txt
```
The resulting `my-file.txt` in `my-artifact` will have "goodbye world" as the content.
In `v4`, Artifacts are immutable unless deleted. To achieve this same behavior, you can use `overwrite: true` to delete the Artifact before a new one is created:
```diff
jobs:
upload:
runs-on: ubuntu-latest
steps:
- name: Create a file
run: echo "hello world" > my-file.txt
- name: Upload Artifact
- uses: actions/upload-artifact@v3
+ uses: actions/upload-artifact@v4
with:
name: my-artifact # NOTE: same artifact name
path: my-file.txt
upload-again:
needs: upload
runs-on: ubuntu-latest
steps:
- name: Create a different file
run: echo "goodbye world" > my-file.txt
- name: Upload Artifact
- uses: actions/upload-artifact@v3
+ uses: actions/upload-artifact@v4
with:
name: my-artifact # NOTE: same artifact name
path: my-file.txt
+ overwrite: true
```
Note that this will create an _entirely_ new Artifact, with a different ID from the previous.
## Merging multiple artifacts
In `v3`, multiple uploads from multiple jobs could be done to the same Artifact. This would result in a single archive, which could be useful for sending to upstream systems outside of Actions via API or UI downloads.
```yaml
jobs:
upload:
strategy:
matrix:
runs-on: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.runs-on }}
steps:
- name: Create a File
run: echo "hello from ${{ matrix.runs-on }}" > file-${{ matrix.runs-on }}.txt
- name: Upload Artifact
uses: actions/upload-artifact@v3
with:
name: all-my-files # NOTE: same artifact name
path: file-${{ matrix.runs-on }}.txt
```
The single `all-my-files` artifact would contain the following:
```
.
∟ file-ubuntu-latest.txt
∟ file-macos-latest.txt
∟ file-windows-latest.txt
```
To achieve the same in `v4` you can change it like so:
```diff
jobs:
upload:
strategy:
matrix:
runs-on: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.runs-on }}
steps:
- name: Create a File
run: echo "hello from ${{ matrix.runs-on }}" > file-${{ matrix.runs-on }}.txt
- name: Upload Artifact
uses: actions/upload-artifact@v3
with:
- name: all-my-files
+ name: my-artifact-${{ matrix.runs-on }}
path: file-${{ matrix.runs-on }}.txt
+ merge:
+ runs-on: ubuntu-latest
+ needs: upload
+ steps:
+ - name: Merge Artifacts
+ uses: actions/upload-artifact/merge@v4
+ with:
+ name: all-my-files
+ pattern: my-artifact-*
```
Note that this will download all artifacts to a temporary directory and reupload them as a single artifact. For more information on inputs and other use cases for `actions/upload-artifact/merge@v4`, see [the action documentation](../merge/README.md).