From c487cdb2874911a5495f2f05dae89d4253fa260f Mon Sep 17 00:00:00 2001
From: Michał Górny <mgorny@gentoo.org>
Date: Sun, 6 Aug 2017 13:45:35 +0200
Subject: general-concepts/ebuild-revisions: Clearly define the purpose of
 revisions

---
 general-concepts/ebuild-revisions/text.xml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'general-concepts/ebuild-revisions/text.xml')

diff --git a/general-concepts/ebuild-revisions/text.xml b/general-concepts/ebuild-revisions/text.xml
index f2d7234..b0c0d97 100644
--- a/general-concepts/ebuild-revisions/text.xml
+++ b/general-concepts/ebuild-revisions/text.xml
@@ -13,6 +13,20 @@ An ebuild with no explicit revision number has the implicit <c>-r0</c>
 revision.
 </p>
 
+<p>Ebuild revisions usually serve two purposes:</p>
+<ol>
+  <li>
+    keeping an older copy of an ebuild around when doing a potentially
+    breaking change, and
+  </li>
+
+  <li>
+    propagating the rebuild of a package when performing a meaningful
+    change that would otherwise go unnoticed by users who have installed
+    the current version already.
+  </li>
+</ol>
+
 <p>
 Ebuilds should have their <c>-rX</c> incremented whenever a change is made which
 will make a substantial difference to what gets installed by the package <d/> by
-- 
cgit v1.2.3-65-gdbad