Isolate manual artifact validation without package publication

scripts/prepare-cross-sources.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SOURCE_LOCK="${SOURCE_LOCK:-$SCRIPT_ROOT/build/linux-toolchain/sources.lock.json}"
+SOURCE_LOCK="$(realpath "$SOURCE_LOCK")"
+export WORK_DIR="${WORK_DIR:-$SCRIPT_ROOT/External/NativeStatic/.work/zig-sources}"
+export LLVM_AR="${LLVM_AR:-llvm-ar}"
+mkdir -p "$WORK_DIR"
+read -r SKIASHARP_VERSION SKIASHARP_REVISION ANGLE_BRANCH ANGLE_REVISION < <(
+  python3 - "$SOURCE_LOCK" <<'PY'
+import json, sys
+lock = json.load(open(sys.argv[1]))
+print(lock['skiasharp_version'], lock['skiasharp_revision'], lock['angle_branch'], lock['angle_revision'])
+PY
+)
+export SKIASHARP_VERSION SKIASHARP_REVISION ANGLE_BRANCH ANGLE_REVISION
+export WORK_DIR="$WORK_DIR/$SKIASHARP_VERSION-$(sha256sum "$SOURCE_LOCK" | cut -c1-16)"
+mkdir -p "$WORK_DIR"
+source "$SCRIPT_ROOT/scripts/build-linux-static-graphics.sh"
+if [[ ! -d "$WORK_DIR/depot_tools/.git" ]]; then
+  cp -a /opt/depot_tools "$WORK_DIR/depot_tools"
+fi
+export DEPOT_TOOLS_DIR="$WORK_DIR/depot_tools"
+ensure_tools
+ensure_depot_tools
+initialize_depot_tools_system_python "$DEPOT_TOOLS_DIR"
+patch_depot_tools_python_deps "$DEPOT_TOOLS_DIR"
+export VPYTHON_BYPASS="manually managed python not supported by chrome operations"
+skia_sharp="$(sync_skiasharp)"
+python3 "$SCRIPT_ROOT/build/linux-toolchain/sync-skia-deps.py" --source "$skia_sharp/externals/skia" --cache "$SCRIPT_ROOT/External/NativeStatic/.work/skia-deps"
+angle="$(sync_angle)"
+project_patch="$SCRIPT_ROOT/External/NativeStatic/patches/angle-chromium-$ANGLE_BRANCH.patch"
+if git -C "$angle" apply --reverse --check "$project_patch" >/dev/null 2>&1; then
+  :
+else
+  git -C "$angle" apply --check "$project_patch"
+  git -C "$angle" apply "$project_patch"
+fi
+python3 - "$angle/.gclient" <<'PY'
+from pathlib import Path
+import sys
+Path(sys.argv[1]).write_text('''solutions = [{
+  "name": ".", "url": "https://chromium.googlesource.com/angle/angle.git",
+  "deps_file": "DEPS", "managed": False,
+  "custom_deps": {"third_party/llvm-build/Release+Asserts": None},
+  "custom_vars": {"checkout_angle_cl_deps": False, "checkout_angle_dawn_deps": False},
+}]
+target_os = ["linux", "win", "mac"]
+''')
+PY
+# Zig and the image's SDKs supply the compiler/runtime; skip native Xcode/MSVC
+# setup hooks while retaining the pinned source dependencies for every target.
+(cd "$angle" && gclient sync --nohooks --force)
+python3 - "$WORK_DIR/cross-sources.json" "$skia_sharp/externals/skia" "$angle" "$SOURCE_LOCK" <<'PY'
+import json, sys
+from pathlib import Path
+Path(sys.argv[1]).write_text(json.dumps({'skia': sys.argv[2], 'angle': sys.argv[3],
+    'angle_gn': sys.argv[3] + '/buildtools/linux64/gn', 'source_lock': sys.argv[4]}, indent=2) + '\n')
+PY
+echo "Prepared $WORK_DIR/cross-sources.json"