Keep desktop builds and the feed to one version

Both scripts now read the version from desktop/package.json: the build
report and checksums only cover the current version's artifacts, the feed
copy ignores older files, and publishing prunes previous installers from
the feed (latest*.yml only ever points at the current one).

deploy/push_desktop.sh

@@ -54,20 +54,29 @@ FEED=deploy/data/desktop
 mkdir -p "$FEED"
 
 shopt -s nullglob
-deb=(desktop/release/*.deb)
-zst=(desktop/release/*.pkg.tar.zst)
+VERSION="$(node -p "require('./desktop/package.json').version")"
+deb=(desktop/release/*"$VERSION"*.deb)
+zst=(desktop/release/*"$VERSION"*.pkg.tar.zst)
 linux_meta=(desktop/release/latest-linux.yml)
-win_exe=("desktop/release/J621 Setup "*.exe)
+win_exe=("desktop/release/J621 Setup ${VERSION}"*.exe)
 win_meta=(desktop/release/latest.yml)
-blockmaps=(desktop/release/*.blockmap)
+blockmaps=(desktop/release/*"$VERSION"*.exe.blockmap)
 
 if [ "${#deb[@]}" -eq 0 ] && [ "${#zst[@]}" -eq 0 ]; then
-    echo "No artifacts in desktop/release/ — run without --no-build first." >&2
+    echo "No $VERSION artifacts in desktop/release/ — run without --no-build first." >&2
     exit 1
 fi
 
-# Replace the previous release's metadata before copying the new artifacts.
+# Replace the previous release's metadata and drop older installers from the
+# feed: latest*.yml only ever points at the current version.
 rm -f "$FEED"/latest-linux.yml "$FEED"/latest.yml
+old=("$FEED"/*.deb "$FEED"/*.pkg.tar.zst "$FEED"/"J621 Setup "*.exe "$FEED"/*.exe.blockmap)
+for file in "${old[@]}"; do
+    case "$(basename "$file")" in
+        *"$VERSION"*) ;;
+        *) echo "    pruning $(basename "$file")"; rm -f "$file" ;;
+    esac
+done
 cp -f "${deb[@]}" "${zst[@]}" "${linux_meta[@]}" "$FEED"/ 2>/dev/null || true
 if [ "${#win_exe[@]}" -gt 0 ]; then
     cp -f "${win_exe[@]}" "${win_meta[@]}" "${blockmaps[@]}" "$FEED"/ 2>/dev/null || true