From b4a50767c6cb70f8b405455df11235649b63048c Mon Sep 17 00:00:00 2001
From: Emily Toop <etoop@mozilla.com>
Date: Mon, 23 Jul 2018 10:54:59 +0100
Subject: [PATCH] Add android build step

---
 .travis.yml                      | 29 ++++++++++++++++++++
 cargo-config.toml.template       | 11 ++++++++
 scripts/create_standalone_ndk.sh | 45 ++++++++++++++++++++++++++++++++
 3 files changed, 85 insertions(+)
 create mode 100755 cargo-config.toml.template
 create mode 100755 scripts/create_standalone_ndk.sh

diff --git a/.travis.yml b/.travis.yml
index 86fcd597..6f28e0fb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -51,3 +51,32 @@ matrix:
       script:
         - ./scripts/cargo_test.sh
       cache: cargo
+    - language: rust
+      dist: trusty
+      rust: stable
+      jdk:
+        - oraclejdk8
+      env:
+        # Get revision number from https://dl.google.com/android/repository/repository2-1.xml
+        # Look for the string 'sdk-tools-linux-'.
+        - ANDROID_SDK_VERSION=4333796
+
+      before_install:
+        - >
+          PKG_OS="$TRAVIS_OS_NAME";
+          export ANDROID_HOME="${HOME}/android-sdk";
+          export PATH=$PATH:"${ANDROID_HOME}/tools/bin";
+          mkdir $ANDROID_HOME
+      install:
+        # SDK Tools.
+        - >
+          curl -o sdk.zip "https://dl.google.com/android/repository/sdk-tools-${PKG_OS}-${ANDROID_SDK_VERSION}.zip" &&
+          unzip -q sdk.zip -d $ANDROID_HOME;  > /dev/null
+        # Android SDK and NDK
+        # Unfortunately we need to get rid of all output, otherwise it can easily fill up the 4 MB log limit
+        - yes | sdkmanager --licenses > /dev/null
+        - sdkmanager 'platform-tools' 'build-tools;27.0.0' 'platforms;android-27' 'ndk-bundle' > /dev/null
+      script:
+        - cd sdks/android/Mentat
+        - ./gradlew --no-daemon clean :library:assemble :library:test :library:lint
+        - cd ../../..
diff --git a/cargo-config.toml.template b/cargo-config.toml.template
new file mode 100755
index 00000000..7fedb3d9
--- /dev/null
+++ b/cargo-config.toml.template
@@ -0,0 +1,11 @@
+[target.aarch64-linux-android]
+ar = "$PWD/NDK/arm64/bin/aarch64-linux-android-ar"
+linker = "$PWD/NDK/arm64/bin/aarch64-linux-android-clang"
+
+[target.armv7-linux-androideabi]
+ar = "$PWD/NDK/arm/bin/arm-linux-androideabi-ar"
+linker = "$PWD/NDK/arm/bin/arm-linux-androideabi-clang"
+
+[target.i686-linux-android]
+ar = "$PWD/NDK/x86/bin/i686-linux-android-ar"
+linker = "$PWD/NDK/x86/bin/i686-linux-android-clang"
diff --git a/scripts/create_standalone_ndk.sh b/scripts/create_standalone_ndk.sh
new file mode 100755
index 00000000..7348618b
--- /dev/null
+++ b/scripts/create_standalone_ndk.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+set -eu
+
+if [ -d NDK ]; then
+    printf '\033[33;1mStandalone NDK already exists... Delete the NDK folder to make a new one.\033[0m\n\n'
+    printf '  $ rm -rf NDK\n'
+    exit 0
+fi
+
+if [ ! -d "${ANDROID_SDK_ROOT-}" ]; then
+    ANDROID_SDK_ROOT=/usr/local/share/android-sdk
+fi
+if [ ! -d "${ANDROID_HOME-}" ]; then
+    ANDROID_HOME="$ANDROID_SDK_ROOT"
+fi
+if [ ! -d "${ANDROID_NDK_HOME-}" ]; then
+    ANDROID_NDK_HOME="$ANDROID_HOME/ndk-bundle"
+fi
+MAKER="${ANDROID_NDK_HOME}/build/tools/make_standalone_toolchain.py"
+
+if [ -x "$MAKER" ]; then
+    echo 'Creating standalone NDK...'
+else
+    printf '\033[91;1mPlease install Android NDK!\033[0m\n\n'
+    printf '  $ sdkmanager ndk-bundle\n\n'
+    printf "\033[33;1mnote\033[0m: file \033[34;4m$MAKER\033[0m not found.\n"
+    printf 'If you have installed the NDK in non-standard location, please define the \033[1m$ANDROID_NDK_HOME\033[0m variable.\n'
+    exit 1
+fi
+
+mkdir NDK
+
+create_ndk() {
+    echo "($1)..."
+    "$MAKER" --api "$2" --arch "$1" --install-dir "NDK/$1"
+}
+
+create_ndk arm64 24
+create_ndk arm 24
+create_ndk x86 24
+
+echo 'Updating cargo-config.toml...'
+
+sed 's|$PWD|'"${PWD}"'|g' cargo-config.toml.template > cargo-config.toml