ios: switch to vendored prebuilt lib (matches macOS pattern)

Author: danrmiller

.gitignore

@@ -35,3 +35,4 @@ build/
 android/src/main/jniLibs/
 
 /macos/frostdart.xcframework/
+/ios/libfrostdart.a

ios/frostdart.podspec

@@ -4,14 +4,16 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'frostdart'
-  s.version          = '0.0.1'
-  s.summary          = 'A new Flutter project.'
+  s.version          = '0.2.0'
+  s.summary          = 'Flutter FFI plugin for FROST threshold signing.'
   s.description      = <<-DESC
-A new Flutter project.
+Flutter FFI plugin wrapping the Rust HRF (FROST) crate from
+kayabaNerve/serai (a fork of serai-dex/serai) for threshold-signed
+Bitcoin wallets.
                        DESC
-  s.homepage         = 'http://example.com'
+  s.homepage         = 'https://github.com/cypherstack/frostdart'
   s.license          = { :file => '../LICENSE' }
-  s.author           = { 'Your Company' => 'email@example.com' }
+  s.author           = { 'Cypher Stack' => 'heyo@cypherstack.com' }
 
   # This will ensure the source files in Classes/ are included in the native
   # builds of apps using this FFI plugin. Podspec does not support relative
@@ -20,20 +22,19 @@ A new Flutter project.
   s.source           = { :path => '.' }
   s.source_files     = 'Classes/**/*'
 
-  s.script_phase = {
-    :name => 'Build Rust library',
-    # First argument is relative path to the `rust` folder, second is name of rust library
-    :script => 'sh "$PODS_TARGET_SRCROOT/../cargokit/build_pod.sh" ../src/serai/hrf frostdart',
-    :execution_position => :before_compile,
-    :input_files => ['${BUILT_PRODUCTS_DIR}/cargokit_phony'],
-    # Let XCode know that the static library referenced in -force_load below is
-    # created by this build step.
-    :output_files => ["${BUILT_PRODUCTS_DIR}/libfrostdart.a"],
-  }
+  # libfrostdart.a is produced by scripts/ios/download.sh (release artifact)
+  # or scripts/ios/build_all.sh (build from source). Both drop it next to this
+  # podspec. Consumers must run one of those before `pod install`.
+  s.vendored_libraries = 'libfrostdart.a'
+
+  s.dependency 'Flutter'
+  s.platform = :ios, '15.0'
+
   s.pod_target_xcconfig = {
     'DEFINES_MODULE' => 'YES',
     # Flutter.framework does not contain a i386 slice.
     'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
-    'OTHER_LDFLAGS' => '-force_load ${BUILT_PRODUCTS_DIR}/libfrostdart.a',
+    'OTHER_LDFLAGS' => '-force_load ${PODS_TARGET_SRCROOT}/libfrostdart.a',
   }
+  s.swift_version = '5.0'
 end

macos/frostdart.podspec

@@ -4,14 +4,16 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'frostdart'
-  s.version          = '0.0.1'
-  s.summary          = 'A new Flutter project.'
+  s.version          = '0.2.0'
+  s.summary          = 'Flutter FFI plugin for FROST threshold signing.'
   s.description      = <<-DESC
-A new Flutter project.
+Flutter FFI plugin wrapping the Rust HRF (FROST) crate from
+kayabaNerve/serai (a fork of serai-dex/serai) for threshold-signed
+Bitcoin wallets.
                        DESC
-  s.homepage         = 'http://example.com'
+  s.homepage         = 'https://github.com/cypherstack/frostdart'
   s.license          = { :file => '../LICENSE' }
-  s.author           = { 'Your Company' => 'email@example.com' }
+  s.author           = { 'Cypher Stack' => 'heyo@cypherstack.com' }
 
   s.source           = { :path => '.' }
   s.vendored_frameworks = 'frostdart.xcframework'

pubspec.yaml

@@ -1,7 +1,7 @@
 name: frostdart
-description: A new Flutter project.
-version: 0.0.1
-homepage:
+description: Flutter FFI plugin wrapping the Rust HRF (FROST) crate from kayabaNerve/serai (a fork of serai-dex/serai) for threshold-signed Bitcoin wallets.
+version: 0.2.0
+homepage: https://github.com/cypherstack/frostdart
 
 environment:
   sdk: '>=3.0.5 <4.0.0'

scripts/ios/build_all.sh

@@ -1,12 +1,19 @@
 #!/bin/bash
+set -e
 
-ROOT_DIR="$(pwd)/../.."
+LIB_ROOT=../..
 
-mkdir -p build
+cd "$LIB_ROOT/src/serai/hrf" || exit
 
-rm -rf "$ROOT_DIR"/src/serai/target
+# cargokit's artifact search uses the Cargo package name verbatim, but cargo
+# normalizes dashes to underscores in the emitted filename. Rename so cargo's
+# output ("libfrostdart.a") and the podspec's vendored_libraries entry agree.
+# BSD sed (macOS) syntax; idempotent.
+sed -i '' 's/^name = "hrf-api"$/name = "frostdart"/' Cargo.toml
 
-cd "$ROOT_DIR"/src/serai/hrf || exit
+export IPHONEOS_DEPLOYMENT_TARGET=15.0
+export RUSTFLAGS="-C link-arg=-mios-version-min=15.0"
+cargo build --target aarch64-apple-ios --release --lib
 
-# Build is handled by cargokit which requires the rust crate be named the same
-sed -i .bak 's/hrf-api/frostdart/' cargo.toml
+cp ../target/aarch64-apple-ios/release/libfrostdart.a \
+   "$LIB_ROOT/ios/libfrostdart.a"

scripts/ios/download.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+LIB_ROOT=../..
+REPO="cypherstack/frostdart"
+BASE_URL="https://github.com/${REPO}/releases/download"
+
+TAG=$(git -C "$LIB_ROOT" describe --tags --exact-match HEAD 2>/dev/null) || {
+    echo "Error: frostdart is not at a tagged commit."
+    echo "Pin the submodule to a release tag to use download mode."
+    echo "Current commit: $(git -C "$LIB_ROOT" rev-parse HEAD)"
+    exit 1
+}
+
+TMPDIR=$(mktemp -d)
+trap 'rm -rf "$TMPDIR"' EXIT
+
+curl -fSL "${BASE_URL}/${TAG}/checksums.txt" -o "$TMPDIR/checksums.txt"
+
+download_and_verify() {
+    local asset="$1"
+    curl -fSL "${BASE_URL}/${TAG}/${asset}" -o "$TMPDIR/${asset}"
+    grep "^[0-9a-f]*  ${asset}$" "$TMPDIR/checksums.txt" | (cd "$TMPDIR" && shasum -a 256 -c)
+}
+
+download_and_verify "frostdart-ios-aarch64.a"
+
+cp "$TMPDIR/frostdart-ios-aarch64.a" "$LIB_ROOT/ios/libfrostdart.a"