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-*- mode: outline; coding: utf-8 -*-
Copyright (C) 2013-2025 Free Software Foundation, Inc.
See the end of the file for license conditions.
NOTES FOR EMACS CONTINUOUS BUILD ON HYDRA
A continuous build for Emacs can be found at
https://hydra.nixos.org/jobset/gnu/emacs-trunk
* It builds Emacs on various platforms.
Sometimes jobs fail due to hydra problems rather than Emacs problems.
* Mail notifications
In addition to the web interface, Hydra can send notifications by
email when the build status of a project changes, e.g., from
SUCCEEDED to FAILED. It sends notifications about build status in
Emacs trunk to emacs-buildstatus@gnu.org.
If you want to receive these notifications, please subscribe at
https://lists.gnu.org/mailman/listinfo/emacs-buildstatus
(This feature seems to have been broken for ages.)
* The Emacs jobset consists of the following jobs:
** The 'tarball' job
which gets a checkout from the repository, and does a bootstrap followed
by running make-dist to create a tarball. If this job fails, all the
others will too (because they use the tarball as input).
** The 'build' job
which starts from the tarball and does a normal build.
** The 'coverage' job
does a gcov build and then runs 'make check-expensive'. Fails if any
test fails.
* Nix expressions
The recipe for GNU Emacs are available via Git:
https://git.savannah.gnu.org/cgit/hydra-recipes.git/tree/emacs
To modify the build job, email the patch to hydra-users@gnu.org. The
build recipes are written in the Nix language.
* Identifying hydra
Lisp packages, Makefiles, scripts, and other software could determine
whether they run on hydra by checking for the environment variable
EMACS_HYDRA_CI.
* Other Information
For a list of other GNU packages that have a continuous build on
Hydra, see https://hydra.nixos.org/project/gnu
See https://www.gnu.org/software/devel.html#Hydra for more information.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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