5d7901b312
* Simplified Spec.__init__ signature by removing the *dep_like argument. The `*dep_like` argument of `Spec.__init__` is used only for tests. This PR removes it from the call signature and introduces an equivalent fixture to be used in tests. * Refactored ``spec_from_dict`` to be a static method of ``Spec`` The fixture ``spec_from_dict`` has been refactored to be a static method of ``Spec``. Test code has been updated accordingly. Added tests for exceptional paths. * Renamed argument `unique` to `normal` + added LazySpecCache class As requested in the review the argument `unique` of `Spec.from_literal` has been renamed to `normal`. To avoid eager evaluations of `Spec(spec_like)` expressions a subclass of `collections.defaultdict` has been introduced. * Spec object can be keys of the dictionary for a spec literal. Added back the possibility use a spec directly as a key. This permits to build DAGs that are partially normalized. |
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| bin | ||
| etc/spack/defaults | ||
| lib/spack | ||
| share/spack | ||
| var/spack | ||
| .codecov.yml | ||
| .coveragerc | ||
| .flake8 | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| LICENSE | ||
| NOTICE | ||
| pytest.ini | ||
| README.md | ||
Spack is a multi-platform package manager that builds and installs multiple versions and configurations of software. It works on Linux, macOS, and many supercomputers. Spack is non-destructive: installing a new version of a package does not break existing installations, so many configurations of the same package can coexist.
Spack offers a simple "spec" syntax that allows users to specify versions and configuration options. Package files are written in pure Python, and specs allow package authors to write a single script for many different builds of the same package. With Spack, you can build your software all the ways you want to.
See the Feature Overview for examples and highlights.
To install spack and your first package, make sure you have Python. Then:
$ git clone https://github.com/llnl/spack.git
$ cd spack/bin
$ ./spack install libelf
Documentation
Full documentation for Spack is the first place to look.
Try the Spack Tutorial, to learn how to use spack, write packages, or deploy packages for users at your site.
See also:
- Technical paper and slides on Spack's design and implementation.
- Short presentation from the Getting Scientific Software Installed BOF session at Supercomputing 2015.
Get Involved!
Spack is an open source project. Questions, discussion, and contributions are welcome. Contributions can be anything from new packages to bugfixes, or even new core features.
Mailing list
If you are interested in contributing to spack, join the mailing list. We're using Google Groups for this:
Slack channel
Spack has a Slack channel where you can chat about all things Spack:
Sign up here to get an invitation mailed to you.
Contributions
Contributing to Spack is relatively easy. Just send us a
pull request.
When you send your request, make develop the destination branch on the
Spack repository.
Your PR must pass Spack's unit tests and documentation tests, and must be PEP 8 compliant. We enforce these guidelines with Travis CI. To run these tests locally, and for helpful tips on git, see our Contribution Guide.
Spack uses a rough approximation of the
Git Flow
branching model. The develop branch contains the latest
contributions, and master is always tagged and points to the latest
stable release.
Authors
Many thanks go to Spack's contributors.
Spack was created by Todd Gamblin, tgamblin@llnl.gov.
Citing Spack
If you are referencing Spack in a publication, please cite the following paper:
- Todd Gamblin, Matthew P. LeGendre, Michael R. Collette, Gregory L. Lee, Adam Moody, Bronis R. de Supinski, and W. Scott Futral. The Spack Package Manager: Bringing Order to HPC Software Chaos. In Supercomputing 2015 (SC’15), Austin, Texas, November 15-20 2015. LLNL-CONF-669890.
Release
Spack is released under an LGPL license. For more details see the NOTICE and LICENSE files.
LLNL-CODE-647188