mirror of
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55 lines
1.9 KiB
Markdown
55 lines
1.9 KiB
Markdown
# vcpkg_from_github
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Download and extract a project from GitHub. Enables support for `install --head`.
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## Usage:
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```cmake
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vcpkg_from_github(
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OUT_SOURCE_PATH <SOURCE_PATH>
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REPO <Microsoft/cpprestsdk>
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[REF <v2.0.0>]
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[SHA512 <45d0d7f8cc350...>]
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[HEAD_REF <master>]
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)
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```
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## Parameters:
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### OUT_SOURCE_PATH
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Specifies the out-variable that will contain the extracted location.
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This should be set to `SOURCE_PATH` by convention.
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### REPO
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The organization or user and repository on GitHub.
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### REF
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A stable git commit-ish (ideally a tag) that will not change contents. **This should not be a branch.**
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For repositories without official releases, this can be set to the full commit id of the current latest master.
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If `REF` is specified, `SHA512` must also be specified.
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### SHA512
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The SHA512 hash that should match the archive (https://github.com/${REPO}/archive/${REF}.tar.gz).
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This is most easily determined by first setting it to `1`, then trying to build the port. The error message will contain the full hash, which can be copied back into the portfile.
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### HEAD_REF
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The unstable git commit-ish (ideally a branch) to pull for `--head` builds.
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For most projects, this should be `master`. The chosen branch should be one that is expected to be always buildable on all supported platforms.
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## Notes:
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At least one of `REF` and `HEAD_REF` must be specified, however it is preferable for both to be present.
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This exports the `VCPKG_HEAD_VERSION` variable during head builds.
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## Examples:
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* [cpprestsdk](https://github.com/Microsoft/vcpkg/blob/master/ports/cpprestsdk/portfile.cmake)
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* [ms-gsl](https://github.com/Microsoft/vcpkg/blob/master/ports/ms-gsl/portfile.cmake)
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* [beast](https://github.com/Microsoft/vcpkg/blob/master/ports/beast/portfile.cmake)
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## Source
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[scripts/cmake/vcpkg_from_github.cmake](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_from_github.cmake)
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