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https://github.com/logos-messaging/nim-ffi.git
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014e1618ba
A SwiftPM package wrapping the timer library's native ABI behind an idiomatic `TimerNode` Swift class. `build-xcframework.sh` cross-compiles the Nim library to a static MyTimer.xcframework with three slices — ios-arm64 (device), ios-arm64-simulator, and macos-arm64 — assembling the .xcframework by hand so it works without a functioning Simulator toolchain (CI-friendly). The wrapper bridges the async FFI-thread callback to a synchronous Swift API with a semaphore and reads the typed EchoResponse struct out of the callback. The macos-arm64 slice makes the wrapper testable on the host: `swift test` passes against it. Device/simulator slices are the real iOS deployment artifacts. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
97 lines
3.6 KiB
Bash
Executable File
97 lines
3.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build MyTimer.xcframework from the Nim timer library:
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# - ios-arm64 (device)
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# - ios-arm64-simulator (Apple-silicon simulator)
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# - macos-arm64 (so the Swift wrapper is testable with `swift test`)
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#
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# Each slice is a static library cross-compiled by Nim with the matching SDK,
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# then bundled with the C headers + module map. Requires Xcode + Nim.
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#
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# ./build-xcframework.sh
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set -euo pipefail
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HERE="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$HERE/../../.." && pwd)"
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NIM_SRC="$REPO_ROOT/examples/timer/timer.nim"
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STAGE="$HERE/.build-slices"
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OUT="$HERE/MyTimer.xcframework"
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CLANG="$(xcrun -f clang)"
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COMMON_NIM=(--mm:orc -d:release -d:chronicles_log_level=WARN --threads:on
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--os:macosx --cpu:arm64 --app:staticlib --noMain
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--nimMainPrefix:libmy_timer --cc:clang
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"--clang.exe:$CLANG" "--clang.linkerexe:$CLANG")
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# build_slice <name> <sdk> <min-flag>
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build_slice() {
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local name="$1" sdk="$2" minflag="$3"
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local sysroot; sysroot="$(xcrun --sdk "$sdk" --show-sdk-path)"
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local dir="$STAGE/$name"
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mkdir -p "$dir"
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echo ">> building slice: $name ($sdk)"
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( cd "$REPO_ROOT" && nim c "${COMMON_NIM[@]}" \
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--nimcache:"$dir/nimcache" \
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--passC:"-isysroot $sysroot -arch arm64 $minflag" \
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--passL:"-isysroot $sysroot -arch arm64 $minflag" \
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-o:"$dir/libmy_timer.a" "$NIM_SRC" >/dev/null )
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}
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rm -rf "$STAGE" "$OUT"
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build_slice device iphoneos "-miphoneos-version-min=13.0"
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build_slice simulator iphonesimulator "-mios-simulator-version-min=13.0"
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build_slice macos macosx "-mmacosx-version-min=12.0"
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echo ">> assembling $OUT"
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# Assemble the .xcframework by hand (a directory + Info.plist) rather than via
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# `xcodebuild -create-xcframework` — same on-disk format, but no dependency on a
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# working Simulator toolchain, so it builds in headless / CI environments too.
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add_slice() { # <stage-name> <library-identifier>
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local dir="$OUT/$2"
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mkdir -p "$dir/Headers"
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cp "$STAGE/$1/libmy_timer.a" "$dir/libmy_timer.a"
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cp "$HERE/cheaders/"* "$dir/Headers/"
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}
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mkdir -p "$OUT"
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add_slice device ios-arm64
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add_slice simulator ios-arm64-simulator
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add_slice macos macos-arm64
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cat > "$OUT/Info.plist" <<'PLIST'
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>AvailableLibraries</key>
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<array>
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<dict>
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<key>LibraryIdentifier</key><string>ios-arm64</string>
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<key>LibraryPath</key><string>libmy_timer.a</string>
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<key>HeadersPath</key><string>Headers</string>
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<key>SupportedArchitectures</key><array><string>arm64</string></array>
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<key>SupportedPlatform</key><string>ios</string>
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</dict>
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<dict>
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<key>LibraryIdentifier</key><string>ios-arm64-simulator</string>
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<key>LibraryPath</key><string>libmy_timer.a</string>
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<key>HeadersPath</key><string>Headers</string>
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<key>SupportedArchitectures</key><array><string>arm64</string></array>
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<key>SupportedPlatform</key><string>ios</string>
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<key>SupportedPlatformVariant</key><string>simulator</string>
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</dict>
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<dict>
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<key>LibraryIdentifier</key><string>macos-arm64</string>
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<key>LibraryPath</key><string>libmy_timer.a</string>
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<key>HeadersPath</key><string>Headers</string>
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<key>SupportedArchitectures</key><array><string>arm64</string></array>
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<key>SupportedPlatform</key><string>macos</string>
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</dict>
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</array>
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<key>CFBundlePackageType</key><string>XFWK</string>
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<key>XCFrameworkFormatVersion</key><string>1.0</string>
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</dict>
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</plist>
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PLIST
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echo ">> done. Slices:"
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ls "$OUT"
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