build(mac): establish LÖVE 12 Metal parity

2026-08-21 05:00:43 +02:00 · 2026-08-19 20:07:47 +02:00
parent 5cf53bb13f
commit f1e5fa4ec3
14 changed files with 372 additions and 51 deletions
@@ -0,0 +1,151 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+MACOS_DIR="$ROOT/mobile/macos"
+CACHE="$ROOT/.bazinga/love12"
+SOURCE_DIR="${LOVE_SOURCE_DIR:-$CACHE/source}"
+RUNTIME_APP="${LOVE_APP_OUTPUT:-$CACHE/love.app}"
+BUILD_DIR="$CACHE/build"
+LOVE_VERSION="$(tr -d '[:space:]' < "$MACOS_DIR/LOVE_VERSION")"
+LOVE_SOURCE_REF="$(tr -d '[:space:]' < "$MACOS_DIR/LOVE_SOURCE_REF")"
+APPLE_DEPENDENCIES_REF="$(tr -d '[:space:]' < "$MACOS_DIR/APPLE_DEPENDENCIES_REF")"
+LOVE_SOURCE_REPO="${LOVE_SOURCE_REPO:-https://github.com/love2d/love.git}"
+APPLE_DEPENDENCIES_REPO="${APPLE_DEPENDENCIES_REPO:-https://github.com/love2d/love-apple-dependencies.git}"
+
+FETCH=false
+CLEAN=false
+
+say() { printf '\033[1;32m==>\033[0m %s\n' "$*"; }
+fail() { printf '\033[1;31merror:\033[0m %s\n' "$*" >&2; exit 1; }
+
+strip_bundle_metadata() {
+  local bundle="$1"
+  xattr -rc "$bundle"
+  xattr -rd com.apple.FinderInfo "$bundle" 2>/dev/null || true
+  xattr -rd 'com.apple.fileprovider.fpfs#P' "$bundle" 2>/dev/null || true
+}
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --fetch) FETCH=true ;;
+    --clean) CLEAN=true ;;
+    -h|--help)
+      printf '%s\n' 'usage: scripts/build_love_macos.sh [--fetch] [--clean]'
+      exit 0
+      ;;
+    *) fail "unknown argument: $1" ;;
+  esac
+  shift
+done
+
+[ "$(uname -s)" = "Darwin" ] || fail "macOS LÖVE builds require Darwin"
+command -v git >/dev/null 2>&1 || fail "git is required to fetch LÖVE sources"
+command -v xcodebuild >/dev/null 2>&1 || fail "xcodebuild is required to build LÖVE for macOS"
+command -v xattr >/dev/null 2>&1 || fail "xattr is required to normalize the runtime bundle"
+
+source_ready() {
+  [ -d "$SOURCE_DIR/platform/xcode/love.xcodeproj" ] \
+    && [ -d "$SOURCE_DIR/platform/xcode/macosx/Frameworks/Lua.framework" ] \
+    && [ -d "$SOURCE_DIR/platform/xcode/shared/Frameworks/SDL3.xcframework" ]
+}
+
+source_is_pinned() {
+  [ "$(git -C "$SOURCE_DIR" rev-parse HEAD 2>/dev/null || true)" = "$LOVE_SOURCE_REF" ] \
+    && [ -f "$SOURCE_DIR/.gen1recomp-apple-dependencies-ref" ] \
+    && [ "$(tr -d '[:space:]' < "$SOURCE_DIR/.gen1recomp-apple-dependencies-ref")" = "$APPLE_DEPENDENCIES_REF" ]
+}
+
+fetch_repo() {
+  local repo_url="$1"
+  local ref="$2"
+  local destination="$3"
+  mkdir -p "$destination"
+  git -C "$destination" init -q
+  git -C "$destination" remote add origin "$repo_url"
+  git -C "$destination" fetch --depth 1 origin "$ref"
+  git -C "$destination" checkout --detach -q FETCH_HEAD
+}
+
+fetch_sources() {
+  local tmp
+  tmp="$(mktemp -d "$CACHE/fetch.XXXXXX")"
+  say "fetching LÖVE source $LOVE_SOURCE_REF"
+  fetch_repo "$LOVE_SOURCE_REPO" "$LOVE_SOURCE_REF" "$tmp/love"
+  say "fetching Apple dependencies $APPLE_DEPENDENCIES_REF"
+  fetch_repo "$APPLE_DEPENDENCIES_REPO" "$APPLE_DEPENDENCIES_REF" "$tmp/dependencies"
+  mkdir -p "$tmp/love/platform/xcode/macosx/Frameworks" "$tmp/love/platform/xcode/shared"
+  cp -R "$tmp/dependencies/macOS/Frameworks/." "$tmp/love/platform/xcode/macosx/Frameworks/"
+  cp -R "$tmp/dependencies/shared/." "$tmp/love/platform/xcode/shared/"
+  rm -rf "$SOURCE_DIR"
+  mkdir -p "$(dirname "$SOURCE_DIR")"
+  mv "$tmp/love" "$SOURCE_DIR"
+  printf '%s\n' "$APPLE_DEPENDENCIES_REF" > "$SOURCE_DIR/.gen1recomp-apple-dependencies-ref"
+  rm -rf "$tmp"
+  say "LÖVE source ready at $SOURCE_DIR"
+}
+
+if $CLEAN; then
+  [ -z "${LOVE_SOURCE_DIR:-}" ] \
+    || fail "--clean cannot be used with LOVE_SOURCE_DIR"
+  rm -rf "$SOURCE_DIR" "$BUILD_DIR" "$RUNTIME_APP"
+fi
+
+if ! source_ready || ! source_is_pinned; then
+  if ! $FETCH; then
+    fail "pinned LÖVE 12 sources are missing at $SOURCE_DIR; run scripts/build_love_macos.sh --fetch"
+  fi
+  [ -z "${LOVE_SOURCE_DIR:-}" ] \
+    || fail "LOVE_SOURCE_DIR is not the pinned LÖVE commit $LOVE_SOURCE_REF"
+  fetch_sources
+fi
+
+PROJECT="$SOURCE_DIR/platform/xcode/love.xcodeproj"
+rm -rf "$BUILD_DIR" "$RUNTIME_APP"
+mkdir -p "$BUILD_DIR"
+say "building LÖVE 12 macOS runtime"
+xcodebuild \
+  -quiet \
+  -project "$PROJECT" \
+  -target love-macosx \
+  -configuration Release \
+  -sdk macosx \
+  SYMROOT="$BUILD_DIR" \
+  OBJROOT="$BUILD_DIR/Intermediates" \
+  ARCHS="arm64 x86_64" \
+  ONLY_ACTIVE_ARCH=NO \
+  MACOSX_DEPLOYMENT_TARGET=12.0 \
+  CODE_SIGNING_ALLOWED=NO \
+  CODE_SIGNING_REQUIRED=NO \
+  CODE_SIGN_IDENTITY=-
+
+BUILT_APP="$BUILD_DIR/Release/love.app"
+[ -d "$BUILT_APP" ] || fail "xcodebuild produced no LÖVE app at $BUILT_APP"
+ditto --norsrc "$BUILT_APP" "$RUNTIME_APP"
+strip_bundle_metadata "$RUNTIME_APP"
+
+version="$(/usr/libexec/PlistBuddy -c 'Print :CFBundleShortVersionString' "$RUNTIME_APP/Contents/Info.plist" 2>/dev/null || true)"
+version_re="$(printf '%s' "$LOVE_VERSION" | sed 's/\./\\./g')"
+printf '%s' "$version" | grep -Eq "^${version_re}(\.|$)" \
+  || fail "built runtime reports LÖVE version '$version'"
+[ -x "$RUNTIME_APP/Contents/MacOS/love" ] \
+  || fail "built runtime is missing Contents/MacOS/love"
+[ -f "$RUNTIME_APP/Contents/Frameworks/love.framework/love" ] \
+  || fail "built runtime is missing love.framework"
+otool -L "$RUNTIME_APP/Contents/Frameworks/love.framework/love" \
+  | grep -q '/Metal.framework/' \
+  || fail "built LÖVE runtime is not linked to Metal"
+
+archs="$(lipo -archs "$RUNTIME_APP/Contents/MacOS/love")"
+printf '%s' "$archs" | grep -qw arm64 \
+  || fail "built LÖVE app is missing arm64"
+printf '%s' "$archs" | grep -qw x86_64 \
+  || fail "built LÖVE app is missing x86_64"
+framework_archs="$(lipo -archs "$RUNTIME_APP/Contents/Frameworks/love.framework/love")"
+printf '%s' "$framework_archs" | grep -qw arm64 \
+  || fail "built LÖVE framework is missing arm64"
+printf '%s' "$framework_archs" | grep -qw x86_64 \
+  || fail "built LÖVE framework is missing x86_64"
+
+say "LÖVE 12 macOS runtime: $RUNTIME_APP"