Group A: source upstream binaries instead of self-built artifacts

The AUR does not allow packages to ship a binary tarball built by the
maintainer - a -bin package must repackage a deliverable published by
upstream. These six packages now do that:

  snapx-bin            upstream's self-contained Linux tar.zst
  zapzap-bin           upstream's pure-Python wheel
  faugus-launcher-bin  upstream's arch-independent .deb
  wiiudownloader-bin   upstream's AppImage
  waydroid-helper-bin  upstream's AppImage
  chiaki-ng-bin        upstream's AppImage

All six drop build_artifact() and switch to refresh_checksums(), so CI no
longer builds or hosts anything - it only tracks upstream's assets.

Where the asset name carries build metadata that does not follow from
pkgver (snapx, faugus-launcher), refresh_checksums() resolves it via the
GitHub API and syncs an _asset variable in the PKGBUILD.

Dependency lists are re-derived from what the bundles actually resolve
outside themselves; the AppImage payloads land in /opt with wrappers in
/usr/bin, because their entry points resolve paths relative to argv[0].

wiiudownloader-bin/PKGBUILD

@@ -4,18 +4,46 @@
 
 pkgname=wiiudownloader-bin
 pkgver=2.99
-pkgrel=1
-pkgdesc="Download encrypted Wii U files from Nintendo's official servers (prebuilt)"
+pkgrel=2
+pkgdesc="Download encrypted Wii U files from Nintendo's official servers (upstream AppImage)"
 arch=('x86_64')
 url="https://github.com/Xpl0itU/WiiUDownloader"
 license=('GPL-3.0-or-later')
-depends=('glibc' 'glib2' 'hicolor-icon-theme' 'libx11' 'gtk3' 'gdk-pixbuf2'
-         'cairo' 'pango' 'fontconfig')
+# the AppImage bundles GTK3 and its stack; these are what is left over
+depends=('glibc' 'libx11' 'libxcb' 'wayland' 'fontconfig' 'freetype2'
+         'harfbuzz' 'fribidi' 'zlib' 'bzip2' 'expat' 'libgpg-error'
+         'hicolor-icon-theme')
 provides=('wiiudownloader')
 conflicts=('wiiudownloader')
-source=("${pkgname}-${pkgver}-${pkgrel}.tar.zst::https://github.com/Felitendo/PKGBUILDS/releases/download/${pkgname}-${pkgver}/${pkgname}-${pkgver}.tar.zst")
-sha256sums=('1a43185b07869b8c25b71c3d43ddd829fd79af9d4cf6bfcfddb201f12cf8ff2e')
+options=('!strip' '!debug')
+source=("${pkgname}-${pkgver}.AppImage::${url}/releases/download/v${pkgver}/WiiUDownloader-Linux-x86_64.AppImage")
+noextract=("${pkgname}-${pkgver}.AppImage")
+sha256sums=('3a2e8e7f34a288308666032d6834db00c515a0c897a66a2ae1012702d017f240')
+
+prepare() {
+  chmod +x "$srcdir/${pkgname}-${pkgver}.AppImage"
+  "$srcdir/${pkgname}-${pkgver}.AppImage" --appimage-extract > /dev/null
+}
 
 package() {
-  cp -a "$srcdir/usr" "$pkgdir/"
+  # upstream's AppImage payload, installed unchanged
+  install -d "$pkgdir/opt/$pkgname"
+  cp -a "$srcdir/squashfs-root/." "$pkgdir/opt/$pkgname/"
+  rm -f "$pkgdir/opt/$pkgname/.DirIcon"
+
+  # AppRun resolves its own directory, so it has to be exec'd by its real
+  # path - a symlink from /usr/bin would make it look next to the symlink
+  install -d "$pkgdir/usr/bin"
+  cat > "$pkgdir/usr/bin/wiiudownloader" << EOF
+#!/bin/sh
+exec /opt/$pkgname/AppRun "\$@"
+EOF
+  chmod 755 "$pkgdir/usr/bin/wiiudownloader"
+
+  install -Dm644 "$srcdir/squashfs-root/usr/share/icons/hicolor/512x512/apps/WiiUDownloader.png" \
+    "$pkgdir/usr/share/icons/hicolor/512x512/apps/wiiudownloader.png"
+  install -Dm644 "$srcdir/squashfs-root/WiiUDownloader.desktop" \
+    "$pkgdir/usr/share/applications/wiiudownloader.desktop"
+  sed -i -e 's|^Exec=.*|Exec=wiiudownloader|' -e 's|^Icon=.*|Icon=wiiudownloader|' \
+    "$pkgdir/usr/share/applications/wiiudownloader.desktop"
 }