From 0d24b1a31b662146dca4444c7e22e0dddbc1f6bd Mon Sep 17 00:00:00 2001
From: lat9nq <22451773+lat9nq@users.noreply.github.com>
Date: Wed, 6 Jan 2021 12:44:03 -0500
Subject: ci/linux: Make Mainline AppImages updateable

Moves the final step for building the AppImage to the upload script.
Instructs appimagetool to embed update information into the AppImage if
the release target is Mainline. Also tells it to create a zsync file to
enable partial-downloads when updating the AppImage.

Also renames the AppImage from `yuzu-{version info}-x86_64.AppImage` to
`yuzu-{version info}.AppImage` to avoid a bug in the downloads page at
yuzu-emu.org/downloads.
---
 .ci/scripts/linux/docker.sh |  5 -----
 .ci/scripts/linux/upload.sh | 24 ++++++++++++++++++++----
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/.ci/scripts/linux/docker.sh b/.ci/scripts/linux/docker.sh
index 30391f6ad..39b1f77d7 100755
--- a/.ci/scripts/linux/docker.sh
+++ b/.ci/scripts/linux/docker.sh
@@ -22,12 +22,10 @@ rm -vf AppDir/usr/bin/yuzu-cmd AppDir/usr/bin/yuzu-tester
 # Download tools needed to build an AppImage
 wget -nc https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
 wget -nc https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
-wget -nc https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage
 wget -nc https://github.com/darealshinji/AppImageKit-checkrt/releases/download/continuous/AppRun-patched-x86_64
 wget -nc https://github.com/darealshinji/AppImageKit-checkrt/releases/download/continuous/exec-x86_64.so
 # Set executable bit
 chmod 755 \
-    appimagetool-x86_64.AppImage \
     AppRun-patched-x86_64 \
     exec-x86_64.so \
     linuxdeploy-x86_64.AppImage \
@@ -49,6 +47,3 @@ cp exec-x86_64.so AppDir/usr/optional/exec.so
 cp AppRun-patched-x86_64 AppDir/AppRun
 cp --dereference /usr/lib/x86_64-linux-gnu/libstdc++.so.6 AppDir/usr/optional/libstdc++/libstdc++.so.6
 cp --dereference /lib/x86_64-linux-gnu/libgcc_s.so.1 AppDir/usr/optional/libgcc_s/libgcc_s.so.1
-
-# Build the AppImage
-./appimagetool-x86_64.AppImage AppDir
diff --git a/.ci/scripts/linux/upload.sh b/.ci/scripts/linux/upload.sh
index 7175e4cb5..b2ea07388 100644
--- a/.ci/scripts/linux/upload.sh
+++ b/.ci/scripts/linux/upload.sh
@@ -2,8 +2,7 @@
 
 . .ci/scripts/common/pre-upload.sh
 
-APPIMAGE_NAME="yuzu-x86_64.AppImage"
-NEW_APPIMAGE_NAME="yuzu-${GITDATE}-${GITREV}-x86_64.AppImage"
+APPIMAGE_NAME="yuzu-${GITDATE}-${GITREV}.AppImage"
 REV_NAME="yuzu-linux-${GITDATE}-${GITREV}"
 ARCHIVE_NAME="${REV_NAME}.tar.xz"
 COMPRESSION_FLAGS="-cJvf"
@@ -19,7 +18,24 @@ mkdir "$DIR_NAME"
 cp build/bin/yuzu-cmd "$DIR_NAME"
 cp build/bin/yuzu "$DIR_NAME"
 
-# Copy the AppImage to the artifacts directory and avoid compressing it
-cp "build/${APPIMAGE_NAME}" "${ARTIFACTS_DIR}/${NEW_APPIMAGE_NAME}"
+# Build an AppImage
+cd build
+
+wget -nc https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage
+chmod 755 appimagetool-x86_64.AppImage
+
+if [ "${RELEASE_NAME}" = "mainline" ]; then
+    # Generate update information if releasing to mainline
+    ./appimagetool-x86_64.AppImage -u "gh-releases-zsync|yuzu-emu|yuzu-${RELEASE_NAME}|latest|yuzu-*.AppImage.zsync" AppDir "${APPIMAGE_NAME}"
+else
+    ./appimagetool-x86_64.AppImage AppDir "${APPIMAGE_NAME}"
+fi
+cd ..
+
+# Copy the AppImage and update info to the artifacts directory and avoid compressing it
+cp "build/${APPIMAGE_NAME}" "${ARTIFACTS_DIR}/"
+if [ -f "build/${APPIMAGE_NAME}.zsync" ]; then
+    cp "build/${APPIMAGE_NAME}.zsync" "${ARTIFACTS_DIR}/"
+fi
 
 . .ci/scripts/common/post-upload.sh
-- 
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