androidenv: Support deploying multiple packages in one derivation

pkgs/development/mobile/androidenv/compose-android-packages.nix

@@ -112,8 +112,19 @@ let
   ] ++ extraLicenses);
 in
 rec {
-  deployAndroidPackage = callPackage ./deploy-androidpackage.nix {
+  deployAndroidPackages = callPackage ./deploy-androidpackages.nix {
+    inherit stdenv lib mkLicenses;
   };
+  deployAndroidPackage = ({package, os ? null, buildInputs ? [], patchInstructions ? "", meta ? {}, ...}@args:
+    let
+      extraParams = removeAttrs args [ "package" "os" "buildInputs" "patchInstructions" ];
+    in
+    deployAndroidPackages ({
+      inherit os buildInputs meta;
+      packages = [ package ];
+      patchesInstructions = { "${package.name}" = patchInstructions; };
+    } // extraParams
+  ));
 
   platform-tools = callPackage ./platform-tools.nix {
     inherit deployAndroidPackage;

pkgs/development/mobile/androidenv/deploy-androidpackages.nix

@@ -0,0 +1,57 @@
+{stdenv, lib, unzip, mkLicenses}:
+{packages, os ? null, nativeBuildInputs ? [], buildInputs ? [], patchesInstructions ? {}, meta ? {}, ...}@args:
+
+let
+  extraParams = removeAttrs args [ "packages" "os" "buildInputs" "nativeBuildInputs" "patchesInstructions" ];
+  sortedPackages = builtins.sort (x: y: builtins.lessThan x.name y.name) packages;
+in
+stdenv.mkDerivation ({
+  inherit buildInputs;
+  pname = lib.concatMapStringsSep "-" (package: package.name) sortedPackages;
+  version = lib.concatMapStringsSep "-" (package: package.revision) sortedPackages;
+  src = map (package:
+    if os != null && builtins.hasAttr os package.archives then package.archives.${os} else package.archives.all
+  ) packages;
+  nativeBuildInputs = [ unzip ] ++ nativeBuildInputs;
+  preferLocalBuild = true;
+
+  unpackPhase = ''
+    buildDir=$PWD
+    i=0
+    for srcArchive in $src; do
+      extractedZip="extractedzip-$i"
+      i=$((i+1))
+      cd "$buildDir"
+      mkdir "$extractedZip"
+      cd "$extractedZip"
+      unpackFile "$srcArchive"
+    done
+  '';
+
+  installPhase = lib.concatStrings (lib.imap0 (i: package: ''
+    cd $buildDir/extractedzip-${toString i}
+
+    # Most Android Zip packages have a root folder, but some don't. We unpack
+    # the zip file in a folder and we try to discover whether it has a single root
+    # folder. If this is the case, we adjust the current working folder.
+    if [ "$(find . -mindepth 1 -maxdepth 1 -type d | wc -l)" -eq 1 ]; then
+        cd "$(find . -mindepth 1 -maxdepth 1 -type d)"
+    fi
+    extractedZip="$PWD"
+
+    packageBaseDir=$out/libexec/android-sdk/${package.path}
+    mkdir -p $packageBaseDir
+    cd $packageBaseDir
+    cp -a $extractedZip/* .
+    ${patchesInstructions.${package.name}}
+  '') packages);
+
+  # Some executables that have been patched with patchelf may not work any longer after they have been stripped.
+  dontStrip = true;
+  dontPatchELF = true;
+  dontAutoPatchelf = true;
+
+  meta = {
+    description = lib.concatMapStringsSep "\n" (package: package.displayName) packages;
+  } // meta;
+} // extraParams)

pkgs/development/mobile/androidenv/examples/shell.nix

@@ -7,13 +7,13 @@
     sha256 = "1wg61h4gndm3vcprdcg7rc4s1v3jkm5xd7lw8r2f67w502y94gcy";
   }),
   pkgs ? import nixpkgsSource {
-      config.allowUnfree = true;
+    config.allowUnfree = true;
   },
   */
 
   # If you want to use the in-tree version of nixpkgs:
   pkgs ? import ../../../../.. {
-      config.allowUnfree = true;
+    config.allowUnfree = true;
   },
 
   config ? pkgs.config