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@@ -5,27 +5,24 @@ [](https://codecov.io/gh/LLNL/spack) [](https://spack.readthedocs.io) -Spack is a package management tool designed to support multiple -versions and configurations of software on a wide variety of platforms -and environments. It was designed for large supercomputing centers, -where many users and application teams share common installations of -software on clusters with exotic architectures, using libraries that -do not have a standard ABI. Spack is non-destructive: installing a new -version does not break existing installations, so many configurations -can coexist on the same system. - -Most importantly, Spack is simple. It offers a simple spec syntax so -that users can specify versions and configuration options -concisely. Spack is also simple for package authors: package files are -written in pure Python, and specs allow package authors to write a -single build script for many different builds of the same package. +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](http://spack.readthedocs.io/en/latest/features.html) for examples and highlights. -To install spack and install your first package, make sure you have -Python (2 or 3). Then: +To install spack and your first package, make sure you have Python. +Then: $ git clone https://github.com/llnl/spack.git $ cd spack/bin @@ -37,15 +34,16 @@ Documentation [**Full documentation**](http://spack.readthedocs.io/) for Spack is the first place to look. -We've also got a [**Spack 101 Tutorial**](http://spack.readthedocs.io/en/latest/tutorial_sc16.html), -so you can learn Spack yourself, or teach users at your own site. +Try the +[**Spack Tutorial**](http://spack.readthedocs.io/en/latest/tutorial.html), +to learn how to use spack, write packages, or deploy packages for users +at your site. See also: * [Technical paper](http://www.computer.org/csdl/proceedings/sc/2015/3723/00/2807623.pdf) and [slides](https://tgamblin.github.io/files/Gamblin-Spack-SC15-Talk.pdf) on Spack's design and implementation. * [Short presentation](https://tgamblin.github.io/files/Gamblin-Spack-Lightning-Talk-BOF-SC15.pdf) from the *Getting Scientific Software Installed* BOF session at Supercomputing 2015. - Get Involved! ------------------------ @@ -55,9 +53,8 @@ packages to bugfixes, or even new core features. ### Mailing list -If you are interested in contributing to spack, the first step is to -join the mailing list. We're using a Google Group for this, and you -can join it here: +If you are interested in contributing to spack, the first step is to join +the mailing list. We're Google Groups for this. Join here: * [Spack Google Group](https://groups.google.com/d/forum/spack) @@ -69,23 +66,22 @@ When you send your request, make ``develop`` the destination branch on the [Spack repository](https://github.com/LLNL/spack). Your PR must pass Spack's unit tests and documentation tests, and must be -[PEP 8](https://www.python.org/dev/peps/pep-0008/) compliant. -We enforce these guidelines with [Travis CI](https://travis-ci.org/LLNL/spack). -To run these tests locally, and for helpful tips on git, see our +[PEP 8](https://www.python.org/dev/peps/pep-0008/) compliant. We enforce +these guidelines with [Travis CI](https://travis-ci.org/LLNL/spack). To +run these tests locally, and for helpful tips on git, see our [Contribution Guide](http://spack.readthedocs.io/en/latest/contribution_guide.html). -Spack uses a rough approximation of the [Git -Flow](http://nvie.com/posts/a-successful-git-branching-model/) +Spack uses a rough approximation of the +[Git Flow](http://nvie.com/posts/a-successful-git-branching-model/) branching model. The ``develop`` branch contains the latest -contributions, and ``master`` is always tagged and points to the -latest stable release. - +contributions, and ``master`` is always tagged and points to the latest +stable release. Authors ---------------- Many thanks go to Spack's [contributors](https://github.com/llnl/spack/graphs/contributors). -Spack was originally written by Todd Gamblin, tgamblin@llnl.gov. +Spack was created by Todd Gamblin, tgamblin@llnl.gov. ### Citing Spack @@ -102,3 +98,5 @@ Spack is released under an LGPL license. For more details see the LICENSE file. ``LLNL-CODE-647188`` + + |