First version of gradle build files.

Change-Id: I229c12077ce60ef98eb9e90b5dc6606f57191a3b

11 files changed, 373 insertions, 5 deletions

diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..3269403
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,53 @@
+buildscript {
+    repositories {
+        maven { url "$project.rootDir/../../prebuilts/tools/common/offline-m2" }
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.5.0'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+
+// Currently, the minimum requirement to run Android SDK tools is Java 1.6
+// So make sure that we are compiling with 1.6
+task('checkJavaVersion') << {
+    def jvmVersion = System.getProperty('java.version')
+    def requiredVersion = System.getenv('JAVA_FOR_TESTS') ?: '1.6'
+    if (!jvmVersion.startsWith(requiredVersion)) {
+        throw new RuntimeException("Tools need to be compiled with Java $requiredVersion, you are using Java $jvmVersion.")
+    }
+}
+final def checkJavaVersionTask = tasks['checkJavaVersion']
+
+/*
+ * With the build server you are given two env variables.
+ * The OUT_DIR is a temporary directory you can use to put things during the build.
+ * The DIST_DIR is where you want to save things from the build.
+ *
+ * The build server will copy the contents of DIST_DIR to somewhere and make it available.
+ */
+if (System.env.DIST_DIR != null && System.env.OUT_DIR != null) {
+    ext.androidHostOut = file(System.env.OUT_DIR)
+    ext.androidHostDist = file(System.env.DIST_DIR)
+} else {
+    // ext.androidHostOut is shared by all tools/{base,build,swt} gradle projects/
+    ext.androidHostOut = file("$rootDir/../out")
+    ext.androidHostDist = new File(ext.androidHostOut, "dist")
+}
+
+// rootProject.buildDir is specific to this gradle build.
+buildDir = new File(ext.androidHostOut, "build/root")
+
+ext.localRepo = project.hasProperty('localRepo') ? localRepo : "$ext.androidHostOut/repo"
+
+subprojects { Project project ->
+    // Change buildDir first so that all plugins pick up the new value.
+    project.buildDir = project.file("$project.parent.buildDir/../$project.name/build")
+}
+
+// basic task for custom distribution of project should the build server.
+task dist << {
+}
diff --git a/constraintlayout/build.gradle b/constraintlayout/build.gradle
new file mode 100644
index 0000000..687b5f4
--- /dev/null
+++ b/constraintlayout/build.gradle
@@ -0,0 +1,15 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "23.0.1"
+
+    defaultConfig {
+        minSdkVersion 17
+        targetSdkVersion 23
+    }
+}
+
+dependencies {
+    compile project(':solver')
+}
diff --git a/constraintlayout/src/main/AndroidManifest.xml b/constraintlayout/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..4c4f303
--- /dev/null
+++ b/constraintlayout/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.google.tnt.sherpa">
+
+    <application />
+</manifest>
\ No newline at end of file
diff --git a/constraintlayout/src/main/java/com/google/tnt/sherpa/ConstraintLayout.java b/constraintlayout/src/main/java/com/google/tnt/sherpa/ConstraintLayout.java
index 396be7b..942d5e9 100644
--- a/constraintlayout/src/main/java/com/google/tnt/sherpa/ConstraintLayout.java
+++ b/constraintlayout/src/main/java/com/google/tnt/sherpa/ConstraintLayout.java
@@ -56,11 +56,11 @@ public class ConstraintLayout extends ViewGroup {
     private static final boolean DEBUG = false;
     private static final String TAG = "ConstraintLayout";
 
-    protected HashMap<View, ConstraintWidget> mConstrainedViews = new HashMap<>();
-    protected ArrayList<ConstraintWidget> mConstrainedWidgets = new ArrayList<>();
-    protected HashMap<View, ConstraintWidget> mConstrainedViewTargets = new HashMap<>();
-    protected ArrayList<ConstraintWidget> mConstrainedTargets = new ArrayList<>();
-    private ArrayList<ConstraintWidget> mSizeDependentsWidgets = new ArrayList<>();
+    protected HashMap<View, ConstraintWidget> mConstrainedViews = new HashMap<View, ConstraintWidget>();
+    protected ArrayList<ConstraintWidget> mConstrainedWidgets = new ArrayList<ConstraintWidget>();
+    protected HashMap<View, ConstraintWidget> mConstrainedViewTargets = new HashMap<View, ConstraintWidget>();
+    protected ArrayList<ConstraintWidget> mConstrainedTargets = new ArrayList<ConstraintWidget>();
+    private ArrayList<ConstraintWidget> mSizeDependentsWidgets = new ArrayList<ConstraintWidget>();
 
     protected ConstraintWidgetContainer mLayoutWidget = null;
     protected LinearSystem mEquationSystem = new LinearSystem();
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..1a644c7
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1 @@
+org.gradle.daemon=true
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7b359d7
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..97e092d
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Dec 12 15:16:42 PST 2012
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=../../../external/gradle/gradle-2.10-all.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..772e697
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,184 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/"
+APP_HOME="`pwd -P`"
+cd "$SAVED"
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+# Change the project's .gradle to the android out dir.
+if [[ -z "$OUT_DIR" ]]; then
+ ANDROID_GRADLE_ROOT="$APP_HOME/../../out"
+else
+  ANDROID_GRADLE_ROOT="$OUT_DIR"
+fi
+
+if [[ -z "$ANDROID_CACHE_DIR" ]]; then
+  ANDROID_CACHE_DIR="$ANDROID_GRADLE_ROOT/.gradle"
+fi
+
+# Change the local user directories to be under the android out dir
+export GRADLE_USER_HOME="$ANDROID_GRADLE_ROOT/.gradle"
+export M2_HOME="$ANDROID_GRADLE_ROOT/.m2"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" \
+    -classpath "$CLASSPATH" \
+    org.gradle.wrapper.GradleWrapperMain \
+    --project-cache-dir=$ANDROID_CACHE_DIR \
+    "$@"
+
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100755
index 0000000..3b43ab4
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,96 @@
+@if "%DEBUG%" == "" @echo off

+@rem ##########################################################################

+@rem

+@rem  Gradle startup script for Windows

+@rem

+@rem ##########################################################################

+

+@rem Set local scope for the variables with windows NT shell

+if "%OS%"=="Windows_NT" setlocal

+

+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.

+set DEFAULT_JVM_OPTS=

+

+set DIRNAME=%~dp0

+if "%DIRNAME%" == "" set DIRNAME=.

+set APP_BASE_NAME=%~n0

+set APP_HOME=%DIRNAME%

+

+@rem Find java.exe

+if defined JAVA_HOME goto findJavaFromJavaHome

+

+set JAVA_EXE=java.exe

+%JAVA_EXE% -version >NUL 2>&1

+if "%ERRORLEVEL%" == "0" goto init

+

+echo.

+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:findJavaFromJavaHome

+set JAVA_HOME=%JAVA_HOME:"=%

+set JAVA_EXE=%JAVA_HOME%/bin/java.exe

+

+if exist "%JAVA_EXE%" goto init

+

+echo.

+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:init

+@rem Get command-line arguments, handling Windowz variants

+

+if not "%OS%" == "Windows_NT" goto win9xME_args

+if "%@eval[2+2]" == "4" goto 4NT_args

+

+:win9xME_args

+@rem Slurp the command line arguments.

+set CMD_LINE_ARGS=

+set _SKIP=2

+

+:win9xME_args_slurp

+if "x%~1" == "x" goto execute

+

+set CMD_LINE_ARGS=%*

+goto execute

+

+:4NT_args

+@rem Get arguments from the 4NT Shell from JP Software

+set CMD_LINE_ARGS=%$

+

+:execute

+@rem Setup the command line

+

+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

+

+@rem Change the project's .gradle to the android out dir.

+set ANDROID_GRADLE_ROOT=%APP_HOME%\..\..\out

+set ANDROID_CACHE_DIR=%ANDROID_GRADLE_ROOT%\.gradle

+set GRADLE_USER_HOME=%ANDROID_GRADLE_ROOT%\.gradle

+set M2_HOME=%ANDROID_GRADLE_ROOT%\.m2

+

+@rem Execute Gradle

+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% --project-cache-dir=%ANDROID_CACHE_DIR%

+

+:end

+@rem End local scope for the variables with windows NT shell

+if "%ERRORLEVEL%"=="0" goto mainEnd

+

+:fail

+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of

+rem the _cmd.exe /c_ return code!

+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1

+exit /b 1

+

+:mainEnd

+if "%OS%"=="Windows_NT" endlocal

+

+:omega

diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..917c30a
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+include 'solver', 'constraintlayout'
diff --git a/solver/build.gradle b/solver/build.gradle
new file mode 100644
index 0000000..1cd49ba
--- /dev/null
+++ b/solver/build.gradle
@@ -0,0 +1,6 @@
+apply plugin: 'java'
+
+compileJava {
+    targetCompatibility = 1.6
+    sourceCompatibility = 1.6
+}