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-rw-r--r--HACKING7
1 files changed, 7 insertions, 0 deletions
diff --git a/HACKING b/HACKING
index 9e47b9703b..0231c7d84d 100644
--- a/HACKING
+++ b/HACKING
@@ -89,6 +89,13 @@ in the form of patches as produced by ‘git format-patch’ sent to
guix-devel@gnu.org. Please write commit logs in the [[http://www.gnu.org/prep/standards/html_node/Change-Logs.html#Change-Logs][GNU ChangeLog
format]]; you can check the commit history for examples.
+Before submitting a patch that adds or modifies a package definition, please
+run ‘guix lint PACKAGE’, where PACKAGE is the name of the new or modified
+package, and fix any errors it reports. In addition, please make sure the
+package builds on your platform, using ‘guix build’. You may also want to
+check that dependent package (if applicable) are not affected by the change;
+‘guix refresh --list-dependent PACKAGE’ will help you do that.
+
When posting a patch to the mailing list, use "[PATCH] ..." as a subject. You
may use your email client or the ‘git send-mail’ command.