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Custom cache directory name (#543)

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* Custom cache directory name

Enable setting a custom directory name for cached packages.
Required if e.g. patch_command uses external variables or
just to set a human readable name.

* fixup! review comment CUSTOM_CACHE_DIR -> CUSTOM_CACHE_KEY

* run cmake-format

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Co-authored-by: Olsson Gerhard <gerhard.olsson@volvo.com>
Co-authored-by: Lars Melchior <lars.melchior@gmail.com>
This commit is contained in:
Gerhard Olsson
2024-04-08 18:24:10 +02:00
committed by GitHub
parent c0855c9543
commit 0370507fed
3 changed files with 24 additions and 1 deletions
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README.md
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@@ -190,6 +190,9 @@ Note that passing the variable as a configure option to CMake will always overri
You can use `CPM_SOURCE_CACHE` on GitHub Actions workflows [cache](https://github.com/actions/cache) and combine it with ccache, to make your CI faster. See the [wiki](https://github.com/cpm-cmake/CPM.cmake/wiki/Caching-with-CPM.cmake-and-ccache-on-GitHub-Actions) for more info.
The directory where the version for a project is stored is by default the hash of the arguments to `CPMAddPackage()`.
If for instance the patch command uses external files, the directory name can be set with the argument `CUSTOM_CACHE_KEY`.
### CPM_DOWNLOAD_ALL
If set, CPM will forward all calls to `CPMFindPackage` as `CPMAddPackage`.