build: build Android wheels for PyPI

Author: link2xt

.github/workflows/deltachat-rpc-server.yml

@@ -248,6 +248,10 @@ jobs:
           cp result/*.whl dist/
           nix build .#deltachat-rpc-server-win32-wheel
           cp result/*.whl dist/
+          nix build .#deltachat-rpc-server-arm64-v8a-android-wheel
+          cp result/*.whl dist/
+          nix build .#deltachat-rpc-server-armeabi-v7a-android-wheel
+          cp result/*.whl dist/
           nix build .#deltachat-rpc-server-source
           cp result/*.tar.gz dist/
           python3 scripts/wheel-rpc-server.py x86_64-darwin bin/deltachat-rpc-server-x86_64-macos

flake.nix

@@ -309,10 +309,41 @@
             LD = "${targetCc}";
           };
 
-        mkAndroidPackages = arch: {
-          "deltachat-rpc-server-${arch}-android" = mkAndroidRustPackage arch "deltachat-rpc-server";
-          "deltachat-repl-${arch}-android" = mkAndroidRustPackage arch "deltachat-repl";
-        };
+        mkAndroidPackages = arch:
+          let
+            rpc-server = mkAndroidRustPackage arch "deltachat-rpc-server";
+          in
+          {
+            "deltachat-rpc-server-${arch}-android" = rpc-server;
+            "deltachat-repl-${arch}-android" = mkAndroidRustPackage arch "deltachat-repl";
+            "deltachat-rpc-server-${arch}-android-wheel" =
+              pkgs.stdenv.mkDerivation {
+                pname = "deltachat-rpc-server-${arch}-android-wheel";
+                version = manifest.version;
+                src = nix-filter.lib {
+                  root = ./.;
+                  include = [
+                    "scripts/wheel-rpc-server.py"
+                    "deltachat-rpc-server/README.md"
+                    "LICENSE"
+                    "Cargo.toml"
+                  ];
+                };
+                nativeBuildInputs = [
+                  pkgs.python3
+                  pkgs.python3Packages.wheel
+                ];
+                buildInputs = [
+                  rpc-server
+                ];
+                buildPhase = ''
+                  mkdir tmp
+                  cp ${rpc-server}/bin/deltachat-rpc-server tmp/deltachat-rpc-server
+                  python3 scripts/wheel-rpc-server.py ${arch}-android tmp/deltachat-rpc-server
+                '';
+                installPhase = ''mkdir -p $out; cp -av deltachat_rpc_server-*.whl $out'';
+              };
+          };
 
         mkRustPackages = arch:
           let

scripts/wheel-rpc-server.py

@@ -154,6 +154,8 @@ def main():
     "armv6l-linux": "linux_armv6l",
     "aarch64-linux": "manylinux_2_17_aarch64.manylinux2014_aarch64.musllinux_1_1_aarch64",
     "i686-linux": "manylinux_2_12_i686.manylinux2010_i686.musllinux_1_1_i686",
+    "arm64-v8a-android": "android_21_arm64_v8a",
+    "armeabi-v7a-android": "android_21_armeabi_v7a",
     "win64": "win_amd64",
     "win32": "win32",
     # macOS versions for platform compatibility tags are taken from https://doc.rust-lang.org/rustc/platform-support.html