From 0c61811aedcae2f946a36259d1570d49b604dcf0 Mon Sep 17 00:00:00 2001
From: Davide De Rosa <keeshux@gmail.com>
Date: Sat, 14 Nov 2020 15:07:43 +0100
Subject: [PATCH] Produce XCFramework from per-platform frameworks

1. Produce one framework per platform
2. Merge archs (lipo) into same platform framework
3. Assemble fat frameworks into XCFramework

For more information:

- https://github.com/balthisar/openssl-xcframeworks
- https://developer.apple.com/forums/thread/666335
---
 .gitignore                  |  1 +
 assets/AppleTVOS            |  1 +
 assets/AppleTVSimulator     |  1 +
 assets/WatchOS              |  1 +
 assets/WatchSimulator       |  1 +
 assets/iPhoneOS             |  1 +
 assets/iPhoneSimulator      |  1 +
 create-openssl-framework.sh | 31 ++++++++++++++++++++++++++++---
 8 files changed, 35 insertions(+), 3 deletions(-)
 create mode 120000 assets/AppleTVOS
 create mode 120000 assets/AppleTVSimulator
 create mode 120000 assets/WatchOS
 create mode 120000 assets/WatchSimulator
 create mode 120000 assets/iPhoneOS
 create mode 120000 assets/iPhoneSimulator

diff --git a/.gitignore b/.gitignore
index ab0744a..ed43e38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 bin
 src
 lib
+frameworks
 include/openssl
 *.gz
 *.framework
diff --git a/assets/AppleTVOS b/assets/AppleTVOS
new file mode 120000
index 0000000..f7173f1
--- /dev/null
+++ b/assets/AppleTVOS
@@ -0,0 +1 @@
+AppleTV
\ No newline at end of file
diff --git a/assets/AppleTVSimulator b/assets/AppleTVSimulator
new file mode 120000
index 0000000..f7173f1
--- /dev/null
+++ b/assets/AppleTVSimulator
@@ -0,0 +1 @@
+AppleTV
\ No newline at end of file
diff --git a/assets/WatchOS b/assets/WatchOS
new file mode 120000
index 0000000..8d43823
--- /dev/null
+++ b/assets/WatchOS
@@ -0,0 +1 @@
+Watch
\ No newline at end of file
diff --git a/assets/WatchSimulator b/assets/WatchSimulator
new file mode 120000
index 0000000..8d43823
--- /dev/null
+++ b/assets/WatchSimulator
@@ -0,0 +1 @@
+Watch
\ No newline at end of file
diff --git a/assets/iPhoneOS b/assets/iPhoneOS
new file mode 120000
index 0000000..9856d0d
--- /dev/null
+++ b/assets/iPhoneOS
@@ -0,0 +1 @@
+iPhone
\ No newline at end of file
diff --git a/assets/iPhoneSimulator b/assets/iPhoneSimulator
new file mode 120000
index 0000000..9856d0d
--- /dev/null
+++ b/assets/iPhoneSimulator
@@ -0,0 +1 @@
+iPhone
\ No newline at end of file
diff --git a/create-openssl-framework.sh b/create-openssl-framework.sh
index ecdaa82..c053af7 100755
--- a/create-openssl-framework.sh
+++ b/create-openssl-framework.sh
@@ -21,7 +21,8 @@ if [ -d $FWROOT ]; then
     rm -rf $FWROOT
 fi
 
-ALL_SYSTEMS=("iPhone" "AppleTV" "MacOSX" "Catalyst" "Watch")
+#ALL_SYSTEMS=("iPhone" "AppleTV" "MacOSX" "Catalyst" "Watch")
+ALL_SYSTEMS=("iPhoneOS" "iPhoneSimulator" "AppleTVOS" "AppleTVSimulator" "MacOSX" "Catalyst" "WatchOS" "WatchSimulator")
 
 function check_bitcode() {
     local FWDIR=$1
@@ -212,11 +213,17 @@ else
     for SYS in ${ALL_SYSTEMS[@]}; do
         SYSDIR="$FWROOT/$SYS"
         FWDIR="$SYSDIR/$FWNAME.framework"
+        LIBS_CRYPTO=(bin/${SYS}*/lib/libcrypto.a)
+        LIBS_SSL=(bin/${SYS}*/lib/libssl.a)
 
-        if [[ -e lib/libcrypto-$SYS.a && -e lib/libssl-$SYS.a ]]; then
+        if [[ ${#LIBS_CRYPTO[@]} -gt 0 && -e ${LIBS_CRYPTO[0]} && ${#LIBS_SSL[@]} -gt 0 && -e ${LIBS_SSL[0]} ]]; then
             echo "Creating framework for $SYS"
+            mkdir -p $FWDIR/lib
+            lipo -create ${LIBS_CRYPTO[@]} -output $FWDIR/lib/libcrypto.a
+            lipo -create ${LIBS_SSL[@]} -output $FWDIR/lib/libssl.a
+            libtool -static -o $FWDIR/$FWNAME $FWDIR/lib/*.a
+            rm -rf $FWDIR/lib
             mkdir -p $FWDIR/Headers
-            libtool -static -o $FWDIR/$FWNAME lib/libcrypto-$SYS.a lib/libssl-$SYS.a
             cp -r include/$FWNAME/* $FWDIR/Headers/
             cp -L assets/$SYS/Info.plist $FWDIR/Info.plist
             MIN_SDK_VERSION=$(get_min_sdk "$FWDIR/$FWNAME")
@@ -252,5 +259,23 @@ for SYS in ${ALL_SYSTEMS[@]}; do
         ln -s "Versions/Current/openssl"
         ln -s "Versions/Current/Headers"
         ln -s "Versions/Current/Resources"
+
+        cd ../../..
     fi
 done
+
+build_xcframework() {
+    local FRAMEWORKS=($FWROOT/*/$FWNAME.framework)
+    local ARGS=
+    for ARG in ${FRAMEWORKS[@]}; do
+        ARGS+="-framework ${ARG} "
+    done
+
+    echo
+    xcodebuild -create-xcframework $ARGS -output "$FWROOT/$FWNAME.xcframework"
+
+    # These intermediate frameworks are silly, and not needed any more.
+    #find ${FWROOT} -mindepth 1 -maxdepth 1 -type d -not -name "$FWNAME.xcframework" -exec rm -rf '{}' \;
+}
+
+build_xcframework