faugus-launcher-bin: add package (2.0.2-1)

faugus-launcher-bin/pkg.sh

@@ -0,0 +1,54 @@
+# faugus-launcher-bin - prebuilt package of https://github.com/Faugus/faugus-launcher
+# (GTK4 game launcher for running Windows games through UMU-Launcher, Python).
+#
+# Upstream ships AppImage/deb/rpm but no Arch-friendly binary, so
+# build_artifact() builds the meson project from the release tarball.
+
+UPSTREAM_REPO="Faugus/faugus-launcher"
+
+# Installed in CI (pacman) before build_artifact runs.
+# (Translations ship as prebuilt .mo files, so no gettext needed.)
+BUILD_DEPS=(meson ninja python)
+
+latest_version() {
+  gh api "repos/$UPSTREAM_REPO/releases/latest" --jq '.tag_name' | sed 's/^v//'
+}
+
+# build_artifact <version> <output-file>
+build_artifact() {
+  local ver="$1" outfile="$2"
+  local workdir destdir srctree sitedir
+  workdir="$(mktemp -d)"
+  destdir="$(mktemp -d)"
+
+  curl -sfL "https://github.com/$UPSTREAM_REPO/archive/refs/tags/$ver.tar.gz" | tar -xz -C "$workdir"
+  srctree="$workdir/faugus-launcher-$ver"
+
+  meson setup "$workdir/build" "$srctree" --prefix=/usr --buildtype=release
+  meson install -C "$workdir/build" --destdir "$destdir"
+
+  # meson installs the python modules into site-packages, whose path changes
+  # with every Python minor bump and would silently break a prebuilt package.
+  # Relocate to a fixed dir and put it on the launcher's PYTHONPATH (the
+  # launcher script already appends any pre-set PYTHONPATH to its own).
+  sitedir="$(find "$destdir/usr/lib" -maxdepth 2 -type d -name site-packages)"
+  [[ -d "$sitedir/faugus" ]] || { echo "faugus module not found in $sitedir" >&2; return 1; }
+  mkdir -p "$destdir/usr/lib/faugus-launcher"
+  mv "$sitedir/faugus" "$destdir/usr/lib/faugus-launcher/"
+  rm -rf "$destdir/usr/lib/python"*
+
+  head -1 "$destdir/usr/bin/faugus-launcher" | grep -qx '#!/bin/sh' \
+    || { echo "unexpected launcher script format" >&2; return 1; }
+  sed -i '1a export PYTHONPATH="/usr/lib/faugus-launcher${PYTHONPATH:+:$PYTHONPATH}"' \
+    "$destdir/usr/bin/faugus-launcher"
+
+  # These caches are generated by pacman hooks; shipping them would cause
+  # file conflicts on install.
+  rm -f "$destdir/usr/share/applications/mimeinfo.cache" \
+        "$destdir/usr/share/icons/hicolor/icon-theme.cache"
+
+  tar --zstd --sort=name --owner=0 --group=0 --numeric-owner --mtime='@0' \
+      -cf "$outfile" -C "$destdir" usr
+
+  rm -rf "$workdir" "$destdir"
+}