Hydra, for The Distro
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Graham Christensen 5fae9d96a2
hydra-evaluator: add a 'ONE_AT_A_TIME' evaluator style
In the past, jobsets which are automatically evaluated are evaluated
regularly, on a schedule. This schedule means a new evaluation is
created every checkInterval seconds (assuming something changed.)

This model works well for architectures where our build farm can
easily keep up with demand.

This commit adds a new type of evaluation, called ONE_AT_A_TIME, which
only schedules a new evaluation if the previous evaluation of the
jobset has no unfinished builds.

This model of evaluation lets us have 'low-tier' architectures.

For example, we could now have a jobset for ARMv7l builds, where
the buildfarm only has a single, underpowered ARMv7l builder.
Configuring that jobset as ONE_AT_A_TIME will create an evaluation
and then won't schedule another evaluation until every job of
the existing evaluation is complete.

This way, the cache will have a complete collection of pre-built
software for some commits, but the underpowered architecture will
never become backlogged in ancient revisions.
2020-03-03 19:28:44 -05:00
datadog add space 2017-07-26 16:56:16 +01:00
doc Corrected grammer typo 2019-08-09 13:49:21 +10:00
src hydra-evaluator: add a 'ONE_AT_A_TIME' evaluator style 2020-03-03 19:28:44 -05:00
tests Added the InfluxDBNotification plugin including a NixOS test 2019-07-26 17:47:03 +02:00
.gitignore Remove hydra-eval-guile-jobs 2020-02-20 09:58:12 +01:00
bootstrap hydra: Simplify `bootstrap'. 2011-01-14 10:52:47 +00:00
configure.ac Remove hydra-eval-guile-jobs 2020-02-20 09:58:12 +01:00
COPYING hydra: revert license change 2010-03-29 14:16:46 +00:00
hydra-module.nix Merge pull request #432 from LumiGuide/better-buildMachinesFiles-default 2019-09-24 19:00:32 +02:00
INSTALL hydra: use autoconf/-make 2010-09-30 14:29:15 +00:00
Makefile.am Install hydra-module.nix into $out/share/nix 2013-07-28 11:24:31 -04:00
README.md Fix link syntax in README.md (#511) 2017-09-30 22:39:36 +01:00
release.nix Fix build 2020-02-20 11:19:45 +01:00
shell.nix inNixShell considered harmful 2016-03-22 13:10:37 +01:00
version hydra: fix tarball build, add pre suffix to tarballs 2010-09-30 15:02:42 +00:00

Hydra

Hydra is a continuous integration system based on the Nix package manager. For more information, see the manual.

For development see hacking instructions.


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