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An action used to filter out a URL and download files for further works.

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actions-download-file

An action used to filter out a URL and download files for further works.

Usage

With auto-match: true

With auto-match: true it searches for the first URL wrapped in () brackets.

For example, you can let it pick the first []() format URL from Markdown:

- uses: suisei-cn/actions-download-file@818d6b7dc8fe73f2f924b6241f2b1134ca1377d9 # 1.6.0
  id: downloadfile  # Remember to give an ID if you need the output
  name: Download the file
  with:
    url: "The vendor we are using is [this](https://cdn.jsdelivr.net/npm/[email protected]/build/workbox-sw.min.js)!"
    target: public/
    auto-match: true
    retry-times: 3

Finding the first []() format URL from a comment event is also working, which is the primary aim of this action:

- uses: suisei-cn/actions-download-file@818d6b7dc8fe73f2f924b6241f2b1134ca1377d9 # 1.6.0
  id: downloadfile  # Remember to give an ID if you need the output
  name: Download the file
  with:
    url: ${{ github.event.comment.body }}
    target: public/
    auto-match: true

Without auto-match

With auto-match: false (which is the default behavior), you can directly give it an URL:

- uses: suisei-cn/actions-download-file@818d6b7dc8fe73f2f924b6241f2b1134ca1377d9 # 1.6.0
  id: downloadfile  # Remember to give an ID if you need the output filename
  name: Download the file
  with:
    url: "https://cdn.jsdelivr.net/npm/[email protected]/build/workbox-sw.min.js"
    target: public/

Note that you can achieve the same goal on Linux/macOS with simply one command, if you don't need the output:

- name: Download a file
  run: curl https://path/to/file -o path/to/save
- name: Download a file
  run: wget https://path/to/file -O path/to/save

Input parameters

  • url: The URL, or the Markdown text containing an URL
  • target: The target directory where the downloaded file lies. Will be automatically created if not exists.
  • auto-match: (optional, default false) If we find the URL from the text, or use the url parameter directly as the URL.
  • filename: (optional) The filename to use when saving. If not given, use the original filename from the URL.
  • retry-times: (optional, default 0) Times to retry on download failure. If not given, don't attempt to retry.

Output

  • filename: The written file name.

How auto-match works?

It attempts to find the first URL with the format (url), such as (https://g.co), which is the common way to embed a link into Markdown.

Will it fail?

This action WILL fail if it cannot finish its job, including but not limited to the cases when:

  • No URL is provided
  • The file cannot be downloaded
  • It cannot find an URL with the format (url)

Examples

Pinning the action by commit hash

As git tags can be overwritten, we advise action users to pin to the exact action version by using the commit hash (e.g. 818d6b7dc8fe73f2f924b6241f2b1134ca1377d9) instead of tag name (v1.6.0).

Read more on GitHub docs: Security hardening for GitHub Actions

License

MIT

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An action used to filter out a URL and download files for further works.

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