From d2a30b38c3f38a9f467b83654dbd0ca98c9cccc3 Mon Sep 17 00:00:00 2001
From: Yee Cheng Chin <ychin.git@gmail.com>
Date: Thu, 20 Feb 2025 21:05:25 -0800
Subject: [PATCH] Support showing multiple releases in appcast

MacVim r179 updated Sparkle to 2.5.2, which allows showing mutiple
releases notes at once, depending on which version the user is upgrading
from. That means we can now show multiple release notes in the appcast
now, but only show versions down to r179 (since otherwise it would be
confusing to older MacVim users upgrading if they see their own version
in the release notes since older Sparkle wouldn't know how to filter
them out).

Add the relevant supporting CSS and wrap each include in its own
section. The actual change to include multiple releases will be done
later.
---
 appcast/_appcast_style.css  | 17 ++++++++++++++++-
 appcast/_prerelease.xml     |  2 ++
 appcast/_release.xml        |  2 ++
 appcast/_release_legacy.xml |  2 ++
 4 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/appcast/_appcast_style.css b/appcast/_appcast_style.css
index 6933edc..7e5a09a 100644
--- a/appcast/_appcast_style.css
+++ b/appcast/_appcast_style.css
@@ -1,4 +1,19 @@
 <style>
 :root { supported-color-schemes: light dark; color-scheme: light dark; }
-h1 { padding-bottom: .3em; border-bottom: 1px solid gray; }
+div h1 { padding-bottom: .3em; border-bottom: 1px solid gray; }
+
+/* Older versions' release notes. Will be optionally shown in collapsed form if the user has upgraded across multiple versions. */
+div > details.oldVersionToggle > summary  {
+  font-size: 1.2em;
+  border-radius: 5px;
+  border-bottom: 3px solid #57c4d0;
+  cursor: pointer;
+  padding: 10px;
+}
+.toc {
+  /* Sparkle does not seem to allow anchor links. Just disable the TOC. */
+  display: none;
+}
+div.sparkle-installed-version { display:none; }
+div.sparkle-installed-version ~ section { display: none; }
 </style>
diff --git a/appcast/_prerelease.xml b/appcast/_prerelease.xml
index 38605f7..c77f781 100644
--- a/appcast/_prerelease.xml
+++ b/appcast/_prerelease.xml
@@ -3,7 +3,9 @@
       <title>MacVim prerelease-180.2</title>
       <description><![CDATA[
 {% include_relative _appcast_style.css %}
+<div>
 {% include releases/r180.2.html %}
+</div>
 <p><br /><small><a href="https://github.com/macvim-dev/macvim/releases/">Latest release notes &gt;</a></small></p>
       ]]></description>
       <sparkle:fullReleaseNotesLink>https://github.com/macvim-dev/macvim/releases</sparkle:fullReleaseNotesLink>
diff --git a/appcast/_release.xml b/appcast/_release.xml
index 2eb2261..5994490 100644
--- a/appcast/_release.xml
+++ b/appcast/_release.xml
@@ -2,7 +2,9 @@
       <title>MacVim release-180</title>
       <description><![CDATA[
 {% include_relative _appcast_style.css %}
+<div>
 {% include releases/r180.html %}
+</div>
 <p><br /><small><a href="https://github.com/macvim-dev/macvim/releases/latest">Latest release notes &gt;</a></small></p>
       ]]></description>
       <sparkle:fullReleaseNotesLink>https://github.com/macvim-dev/macvim/releases</sparkle:fullReleaseNotesLink>
diff --git a/appcast/_release_legacy.xml b/appcast/_release_legacy.xml
index fca0d14..dfdab74 100644
--- a/appcast/_release_legacy.xml
+++ b/appcast/_release_legacy.xml
@@ -2,7 +2,9 @@
       <title>MacVim release-180</title>
       <description><![CDATA[
 {% include_relative _appcast_style.css %}
+<div>
 {% include releases/r180.html %}
+</div>
 <p><br /><small><a href="https://github.com/macvim-dev/macvim/releases/latest">Latest release notes &gt;</a></small></p>
       ]]></description>
       <sparkle:fullReleaseNotesLink>https://github.com/macvim-dev/macvim/releases</sparkle:fullReleaseNotesLink>