fix: handle desktop readiness and validate compositor updates

2026-09-05 06:17:15 +00:00
parent cb003093c2
commit 88e889bf65
7 changed files with 137 additions and 28 deletions
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# Optional render node moves GPU work out of QEMU TCG; no physical display is changed.
+set -euo pipefail
+umask 077
+if [[ "${1:-}" == --help ]]; then
+  echo 'Usage: ./audit-desktop.sh [accessible /dev/dri/renderD* or card* node]'
+  exit 0
+fi
+export NIXOS_AUDIT_REPO
+NIXOS_AUDIT_REPO=$(dirname "$(readlink -f "$0")")
+export NIXOS_AUDIT_RENDER_NODE=${1:-}
+if [[ -n "$NIXOS_AUDIT_RENDER_NODE" ]] &&
+   [[ ! -r "$NIXOS_AUDIT_RENDER_NODE" || ! -w "$NIXOS_AUDIT_RENDER_NODE" ]]; then
+  echo "Render node is not accessible: $NIXOS_AUDIT_RENDER_NODE" >&2
+  exit 1
+fi
+base="${XDG_CACHE_HOME:-$HOME/.cache}/desktop-audit"
+mkdir -p "$base"
+output=$(mktemp -d "$base/run.XXXXXXXX")
+export TMPDIR="$output/tmp"
+mkdir -p "$TMPDIR"
+driver=$(nix build --impure --no-update-lock-file --out-link "$output/driver" --print-out-paths --expr '
+  let
+    repo = builtins.getEnv "NIXOS_AUDIT_REPO";
+    f = builtins.getFlake repo;
+    node = builtins.getEnv "NIXOS_AUDIT_RENDER_NODE";
+  in (import (repo + "/desktop-test.nix") {
+    inputs = f.inputs;
+    pkgs = f.inputs.nixpkgs.legacyPackages.x86_64-linux;
+    hostRenderNode = if node == "" then null else node;
+  }).driver
+')
+if [[ -n "$NIXOS_AUDIT_RENDER_NODE" ]]; then
+  mesa=$(nix eval --impure --raw --expr '
+    (builtins.getFlake (builtins.getEnv "NIXOS_AUDIT_REPO")).inputs.nixpkgs.legacyPackages.x86_64-linux.mesa.outPath
+  ')
+  # Isolated host-side Mesa software rendering, never global driver overrides.
+  # Prevent the test driver appending -nographic over the EGL-headless backend.
+  export DISPLAY=""
+  export LIBGL_ALWAYS_SOFTWARE=1 LP_NUM_THREADS=4
+  export GBM_BACKENDS_PATH="$mesa/lib/gbm" LIBGL_DRIVERS_PATH="$mesa/lib/dri"
+  export __EGL_VENDOR_LIBRARY_FILENAMES="$mesa/share/glvnd/egl_vendor.d/50_mesa.json"
+fi
+printf 'Audit output: %s\n' "$output"
+exec "$driver/bin/nixos-test-driver" -o "$output"