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40 lines
1.5 KiB
Markdown
40 lines
1.5 KiB
Markdown
# vcpkg_download_distfile
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Download and cache a file needed for this port.
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## Usage
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```cmake
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vcpkg_download_distfile(
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<OUT_VARIABLE>
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URLS <http://mainUrl> <http://mirror1>...
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FILENAME <output.zip>
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SHA512 <5981de...>
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)
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```
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## Parameters
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### OUT_VARIABLE
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This variable will be set to the full path to the downloaded file. This can then immediately be passed in to [`vcpkg_extract_source_archive`](vcpkg_extract_source_archive.md) for sources.
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### URLS
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A list of URLs to be consulted. They will be tried in order until one of the downloaded files successfully matches the SHA512 given.
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### FILENAME
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The local name for the file. Files are shared between ports, so the file may need to be renamed to make it clearly attributed to this port and avoid conflicts.
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### SHA512
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The expected hash for the file.
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If this doesn't match the downloaded version, the build will be terminated with a message describing the mismatch.
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## Notes
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The command [`vcpkg_from_github`](vcpkg_from_github.md) should be used instead of this for downloading the main archive for GitHub projects.
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## Examples
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* [boost](https://github.com/Microsoft/vcpkg/blob/master/ports/boost/portfile.cmake)
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* [fontconfig](https://github.com/Microsoft/vcpkg/blob/master/ports/fontconfig/portfile.cmake)
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* [openssl](https://github.com/Microsoft/vcpkg/blob/master/ports/openssl/portfile.cmake)
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## Source
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[scripts/cmake/vcpkg_download_distfile.cmake](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_download_distfile.cmake)
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