Update compile and target SDK version.

app/build.gradle

@@ -138,11 +138,11 @@ if(custom.listFiles()) {
 }
 
 android {
-  compileSdkVersion 26
+  compileSdkVersion 27
 
   defaultConfig {
     minSdkVersion 14
-    targetSdkVersion 25
+    targetSdkVersion 27
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     // See https://github.com/linkedin/dexmaker/issues/65 for why we need the following line.
     testInstrumentationRunnerArguments.notClass = 'com.android.dex.DexIndexOverflowException'
@@ -236,7 +236,7 @@ android {
         if (file(directory + "/build.gradle").exists()) {
           apply from: directory + "/build.gradle"
         }
-        def jsonFile = ""
+        def jsonFile
         if (project.hasProperty('jsonFile')) {
           // Read json file from properties e.g command line
           jsonFile = file(project.property('jsonFile'))
@@ -264,7 +264,7 @@ android {
         applicationId "$parsedJson.package"
         buildConfigField "boolean", "IS_CUSTOM_APP", "true"
         buildConfigField "boolean", "HAS_EMBEDDED_ZIM", "$parsedJson.embed_zim"
-        def filename = ""
+        def filename
         if (parsedJson.zim_file.lastIndexOf('/') >= 0) {
           filename = parsedJson.zim_file.substring(parsedJson.zim_file.lastIndexOf('/') + 1)
         } else {
@@ -339,10 +339,6 @@ android {
   */
 }
 
-task wrapper(type: Wrapper) {
-  gradleVersion = '2.4'
-}
-
 // Testdroid deployment configuration
 def buildNumber = System.getenv('TRAVIS_BUILD_NUMBER')
 

build.gradle

@@ -16,7 +16,7 @@ buildscript {
 }
 
 ext {
-    supportLibraryVersion = '27.0.1'
+    supportLibraryVersion = '27.0.2'
 }
 
 allprojects {

gradlew

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
@@ -6,47 +6,6 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS="\"-Xmx4096m\" \"-Xms4096m\""
-
-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="$0"
@@ -61,9 +20,49 @@ while [ -h "$PRG" ] ; do
     fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
+cd "`dirname \"$PRG\"`/" >/dev/null
 APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
@@ -90,7 +89,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -114,6 +113,7 @@ fi
 if $cygwin ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
@@ -154,11 +154,19 @@ if $cygwin ; then
     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=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(save "$@")
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -8,14 +8,14 @@
 @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 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=
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,10 +46,9 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows 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.
@@ -60,11 +59,6 @@ set _SKIP=2
 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

kiwixlib/build.gradle

@@ -2,11 +2,11 @@ apply plugin: 'com.android.library'
 
 
 android {
-  compileSdkVersion 26
+  compileSdkVersion 27
 
   defaultConfig {
     minSdkVersion 14
-    targetSdkVersion 24
+    targetSdkVersion 27
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
   }
 
@@ -19,9 +19,9 @@ android {
 }
 
 dependencies {
-  compile fileTree(dir: 'libs', include: ['*.jar'])
-  androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+  implementation fileTree(dir: 'libs', include: ['*.jar'])
+  androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
     exclude group: 'com.android.support', module: 'support-annotations'
   })
-  testCompile 'junit:junit:4.12'
+  testImplementation 'junit:junit:4.12'
 }