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gwl-0.4.0 released [stable]
From: |
Ricardo Wurmus |
Subject: |
gwl-0.4.0 released [stable] |
Date: |
Fri, 28 Jan 2022 21:58:21 +0100 |
User-agent: |
mu4e 1.6.10; emacs 27.2 |
We are pleased to announce the release of the GNU Guix Workflow
Language version 0.4.0, representing 60 commits by one person that are
the result of discussions among a number of helpful people on the
#guix and #guix-hpc IRC channels on libera.chat and on the
gwl-devel@gnu.org mailing list. Special thanks go to Simon Tournier
and Ludovic Courtès for their patience, support, and insightful
comments.
The biggest change compared to the previous release is likely the
support of job submissions to an HPC job scheduler via DRMAA, using
the new Guile bindings for DRMAA v1[1]. These Guile bindings would
not have been possible without Matt Wette, his helpful comments, and
his most excellent FFI helper (part of nyacc).
[1]: https://git.elephly.net/software/guile-drmaa.git
[2]: https://www.nongnu.org/nyacc/
For details see the NEWS excerpt below. See also the updated manual:
https://workflows.guix.info/manual/
An real-world example workflow is included in the
doc/examples/pigx-rnaseq directory of the source repository.
• About
The Guix Workflow Language (GWL) provides an extension to GNU Guix's
declarative language for package management to automate the
execution of programs in scientific workflows. The GWL can use
process engines to integrate with various computing environments.
• Download
Here are the compressed sources and a GPG detached signature[*]:
https://ftpmirror.gnu.org/gwl/gwl-0.4.0.tar.gz
https://ftpmirror.gnu.org/gwl/gwl-0.4.0.tar.gz.sig
Use a mirror for higher download bandwidth:
https://www.gnu.org/order/ftp.html
[*] Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact. First, be sure to download both the .sig file
and the corresponding tarball. Then, run a command like this:
gpg --verify gwl-0.4.0.tar.gz.sig
If that command fails because you don't have the required public key,
then run this command to import it:
gpg --keyserver keys.openpgp.org --recv-keys
BCA689B636553801C3C62150197A5888235FACAC
and rerun the 'gpg --verify' command.
This release was bootstrapped with the following tools:
Autoconf 2.69
Automake 1.16.3
Gnulib v0.1-3269-g03d7a6b1f
NEWS
* Changes in 0.4.0 (since 0.3.0)
** Workflow syntax
- the new =workflow= fields =before= and =after= can be used to specify
procedures that are run before and after the workflow runs. This can be useful
for printing banners or further instructions.
- new procedure =display-file= to print the content of files
** Execution engines
- Process engines can now specify a procedure in the =check= field to validate
the execution environment before running the workflow.
- Process engines have a new =run= field specifying how ordered processes
should be iterated over.
- The new =drmaa-engine= supports job submission to schedulers implementing
DRMAA version 1.
- The =grid-engine= is deprecated and will be removed in future releases. Use
the =drmaa-engine= instead.
** Bug fixes
- the cache feature would symlink if hardlinking was not possible. This was
incorrect and now it falls back to copying files to and from the cache when
hardlinking fails.
--
Ricardo
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