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Diffstat (limited to 'lib/spack/docs/packaging_guide.rst')
| -rw-r--r-- | lib/spack/docs/packaging_guide.rst | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/spack/docs/packaging_guide.rst b/lib/spack/docs/packaging_guide.rst index 879beb2476..34fcb1e101 100644 --- a/lib/spack/docs/packaging_guide.rst +++ b/lib/spack/docs/packaging_guide.rst @@ -759,6 +759,26 @@ Fetching a revision Subversion branches are handled as part of the directory structure, so you can check out a branch or tag by changing the ``url``. +Expanding additional resources in the source tree +------------------------------------------------- + +Some packages (most notably compilers) provide optional features if additional +resources are expanded within their source tree before building. In Spack it is +possible to describe such a need with the ``resource`` directive : + + .. code-block:: python + + resource( + name='cargo', + git='https://github.com/rust-lang/cargo.git', + tag='0.10.0', + destination='cargo' + ) + +Based on the keywords present among the arguments the appropriate ``FetchStrategy`` +will be used for the resource. The keyword ``destination`` is relative to the source +root of the package and should point to where the resource is to be expanded. + Automatic caching of files fetched during installation ------------------------------------------------------ |