android patches for ndk (#6024)

* android patches for ndk

* Update libtransmission/file-capacity.cc

Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>

* TrMacros: Move common & android vars

* Build android in CI

* Use vcpkg packages for curl & openssl

* Update CI for android

* Fix ndkVersion used with gradle

* Restore actions triggers events

* CMakeLists: Remove cond where curl is not found

* Use vcpkg tag instead of commit hash

Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>

* TrMacros.cmake: clean unused variables & add vcpkg cond

* Remove quotes around VcpkgAndroid inclusion

Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>

* actions: split steps to install vcpkg packages

* Build for android arm64

* actions: add make-android condition

* Revert "Use vcpkg tag instead of commit hash"

This reverts commit 65819026b1.

* build.gradle: use cmake version 3.22.1

* actions: use vcpkg 2024.01.12

* actions: Add ninja-build dependency

---------

Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>

android/build.gradle

@@ -0,0 +1,69 @@
+buildscript {
+  repositories {
+    google()
+    mavenCentral()
+  }
+
+  dependencies {
+    classpath "com.android.tools.build:gradle:7.2.1"
+  }
+}
+
+apply plugin: "com.android.library"
+
+
+def appProject = rootProject.allprojects.find { it.plugins.hasPlugin('com.android.application') }
+
+def getExtOrDefault(name) {
+  return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties["Transmission_" + name]
+}
+
+def getExtOrIntegerDefault(name) {
+  return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties["Transmission_" + name]).toInteger()
+}
+
+android {
+  ndkVersion getExtOrDefault("ndkVersion")
+  compileSdkVersion getExtOrIntegerDefault("compileSdkVersion")
+
+  defaultConfig {
+    minSdkVersion getExtOrIntegerDefault("minSdkVersion")
+    targetSdkVersion getExtOrIntegerDefault("targetSdkVersion")
+    externalNativeBuild {
+      cmake {
+        abiFilters "arm64-v8a"
+        arguments "-DVCPKG_TARGET_ANDROID=ON", "-DWITH_CRYPTO=openssl"
+      }
+    }
+  }
+  externalNativeBuild {
+    cmake {
+      version "3.22.1"
+      path "../CMakeLists.txt"
+    }
+  }
+  buildTypes {
+    release {
+      minifyEnabled false
+    }
+  }
+
+  lintOptions {
+    disable "GradleCompatible"
+  }
+
+  compileOptions {
+    sourceCompatibility JavaVersion.VERSION_1_8
+    targetCompatibility JavaVersion.VERSION_1_8
+  }
+
+  buildFeatures {
+    prefab true
+  }
+}
+
+repositories {
+  mavenCentral()
+  google()
+}
+

android/gradle.properties

@@ -0,0 +1,6 @@
+Transmission_kotlinVersion=1.7.0
+# quotactl is defined from >= 26
+Transmission_minSdkVersion=26
+Transmission_targetSdkVersion=31
+Transmission_compileSdkVersion=31
+Transmission_ndkVersion=26.1.10909125

android/src/main/AndroidManifest.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.transmissionbt.transmission">
+    <application android:label="Transmission">
+    </application>
+</manifest>