Fix leftShift deprecation

1.03-Demo-GroovyFundamentals/build.gradle

@@ -22,7 +22,7 @@ selecting View > Syntax > Open all with current extension as... > Groovy
 
 */
 
-task groovy << {}
+task groovy {}
 
 println "Hello Groovy!"
 

1.04-Demo-GroovyClosuresAndObjects/build.gradle

@@ -7,7 +7,7 @@ from the scope in which they're declared.
 
 */
 
-task groovy << {}
+task groovy {}
 
 def foo = "One million dollars"
 def myClosure = {

1.05-Exercise-ExperimentWithGroovy/build.gradle

@@ -1,50 +1,63 @@
 /*
 
-In these exercises we'll explore the Groovy features most relevant to Gradle
-build scripts. Each topic will be contained in the action of a Gradle task, so
-to test run your code you'll need to run that particular task. If you get
-stuck, check out the solution.gradle file in this directory.
+Welcome to the solutions to the Groovy Playground exercise! You can run these
+tasks by telling Gradle to use this build script, instead of the default
+build.gradle. To run the task below, use:
+
+    $ gradle -b solution.gradle stringsAndTypes
+
+or, more compactly
+
+    $ gradle -b solution.gradle sAT
 
 */
 
-task stringsAndTypes << {
-    // TODO: Run `$ gradle sAT`
-    println "Nice work abbreviating the task name"
+task stringsAndTypes {
+    doLast {
+        // TODO: Run `$ gradle sAT`
+        println "Nice work abbreviating the task name"
 
+        // TODO: Create a variable named foo and assign it the value 4.2
 
-    // TODO: Create a variable named foo and assign it the value 4.2
+        // TODO: Print the value and class of foo
 
-    // TODO: Print the value and class of foo
+        // TODO: Use string interpolation to print the square root of 127
+        // HINT: http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html
 
-    // TODO: Use string interpolation to print the square root of 127
-    // HINT: http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html
+        // TODO: Assign the current date to foo and print it, along with its type
+        // HINT:
+        // http://docs.oracle.com/javase/7/docs/api/java/util/package-summary.html
 
-    // TODO: Assign the current date to foo and print it, along with its type
-    // HINT:
-    // http://docs.oracle.com/javase/7/docs/api/java/util/package-summary.html
 
-    // TODO: Use the `substring` method to extract my name from this string
-    def hello = "Hello, Jeremy.";
+        // TODO: Use the `substring` method to extract my name from this string
+        def hello = "Hello, Jeremy."
 
-    // TODO: Use `toUpperCase` to capitalize and print my name
+        // TODO: Use `toUpperCase` to capitalize and print my name
 
+    }
 }
 
-task closures << {
-    // TODO: Declare a closure that takes two arguments and adds them together
-    // HINT: http://www.groovy-lang.org/closures.html
 
-    // TODO: Call your closure with arguments 17 and 25, and print the result
-    // Beware that something like `println addTwo 17, 25` is ambiguous
+task closures {
+    doLast {
+        // TODO: Declare a closure that takes two arguments and adds them together
+        // HINT: http://www.groovy-lang.org/closures.html
+
+        // TODO: Call your closure with arguments 17 and 25, and print the result
+        // Beware that something like `println addTwo 17, 25` is ambiguous
+
+    }
 }
 
-task lists << {
-    // TODO: Declare a list containing 5 of your favorite candies
-    // HINT: Try searching for "groovy list literal"
+task lists {
+    doLast {
+        // TODO: Declare a list containing 5 of your favorite candies
+        // HINT: Try searching for "groovy list literal"
 
-    // TODO: Create a new list of your candies in all caps
-    // HINT: http://mrhaki.blogspot.ca/2010/05/groovy-goodness-use-collect-with.html
+        // TODO: Create a new list of your candies in all caps
+        // HINT: http://mrhaki.blogspot.ca/2010/05/groovy-goodness-use-collect-with.html
 
-    // TODO: Print each capital candy
+        // TODO: Print each capital candy
 
+    }
 }

1.05-Exercise-ExperimentWithGroovy/solution.gradle

@@ -12,61 +12,69 @@ or, more compactly
 
 */
 
-task stringsAndTypes << {
-    // TODO: Run `$ gradle sAT`
-    println "Nice work abbreviating the task name"
+task stringsAndTypes {
+    doLast {
+        // TODO: Run `$ gradle sAT`
+        println "Nice work abbreviating the task name"
 
-    // TODO: Create a variable named foo and assign it the value 4.2
-    def foo = 4.2
+        // TODO: Create a variable named foo and assign it the value 4.2
+        def foo = 4.2
 
-    // TODO: Print the value and class of foo
-    println "foo is of type: ${foo.class} and has value: $foo"
+        // TODO: Print the value and class of foo
+        println "foo is of type: ${foo.class} and has value: $foo"
 
-    // TODO: Use string interpolation to print the square root of 127
-    // HINT: http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html
-    println "The square root of 127 is ${Math.sqrt(127)}"
+        // TODO: Use string interpolation to print the square root of 127
+        // HINT: http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html
+        println "The square root of 127 is ${Math.sqrt(127)}"
 
-    // TODO: Assign the current date to foo and print it, along with its type
-    // HINT:
-    // http://docs.oracle.com/javase/7/docs/api/java/util/package-summary.html
-    foo = new java.util.Date()
-    println "foo is now of type: ${foo.class} and has value: $foo"
+        // TODO: Assign the current date to foo and print it, along with its type
+        // HINT:
+        // http://docs.oracle.com/javase/7/docs/api/java/util/package-summary.html
+        foo = new java.util.Date()
+        println "foo is now of type: ${foo.class} and has value: $foo"
 
 
-    // TODO: Use the `substring` method to extract my name from this string
-    def hello = "Hello, Jeremy."
-    def name = hello.substring(7, 13)
+        // TODO: Use the `substring` method to extract my name from this string
+        def hello = "Hello, Jeremy."
+        def name = hello.substring(7, 13)
 
-    // TODO: Use `toUpperCase` to capitalize and print my name
-    println name.toUpperCase()
+        // TODO: Use `toUpperCase` to capitalize and print my name
+        println name.toUpperCase()
+    }
 }
 
 
-task closures << {
-    // TODO: Declare a closure that takes two arguments and adds them together
-    // HINT: http://www.groovy-lang.org/closures.html
-    def addTwo = {x, y -> x + y}
+task closures {
+    doLast {
+        // TODO: Declare a closure that takes two arguments and adds them together
+        // HINT: http://www.groovy-lang.org/closures.html
+        def addTwo = {x, y -> x + y}
 
-    // TODO: Call your closure with arguments 17 and 25, and print the result
-    // Beware that something like `println addTwo 17, 25` is ambiguous
-    println addTwo(17,25)
+        // TODO: Call your closure with arguments 17 and 25, and print the result
+        // Beware that something like `println addTwo 17, 25` is ambiguous
+        println addTwo(17,25)
+    }
 }
 
-task lists << {
-    // TODO: Declare a list containing 5 of your favorite candies
-    // HINT: Try searching for "groovy list literal"
-    def candyList = ["Tomatoes","Carrots","Spinach","Radishes","Beef"]
+task lists {
+    doLast {
+        // TODO: Declare a list containing 5 of your favorite candies
+        // HINT: Try searching for "groovy list literal"
+        def candyList = ["Tomatoes","Carrots","Spinach","Radishes","Beef"]
 
-    // TODO: Create a new list of your candies in all caps
-    // HINT: http://mrhaki.blogspot.ca/2010/05/groovy-goodness-use-collect-with.html
-    def capitalCandies = candyList.collect{it.toUpperCase()}
+        // TODO: Create a new list of your candies in all caps
+        // HINT: http://mrhaki.blogspot.ca/2010/05/groovy-goodness-use-collect-with.html
+        def capitalCandies = candyList.collect{it.toUpperCase()}
 
-    // TODO: Print each capital candy
-    capitalCandies.each{println it}
+        // TODO: Print each capital candy
+        capitalCandies.each{println it}
+    }
 }
 
-task foobar << {
-    def foo = "bar"
-    println "$foo + foo equals ${foo + 'foo'}"
+task foobar {
+    doLast {
+        def foo = "bar"
+        println "$foo + foo equals ${foo + 'foo'}"
+    }
 }
 

1.06-Demo-TaskConfiguration/build.gradle

@@ -76,26 +76,6 @@ myTask4.doFirst {println "Do this first"}
 
 /*
 
-We can also add actions using the `leftShift` operator.
-
-*/
-
-myTask4.leftShift {println "Do this even more last"}
-myTask4 << {println "Do this last of all"}
-
-/*
-
-We can also declare a task and give it an action in a single stroke. This is a
-very common pattern.
-
-*/
-
-task myTask5 << {
-    println "Here's how to declare a task and give it an action in one stroke"
-}
-
-/*
-
 Instead of declaring a task and then setting its properties afterwards, we can
 also give the task a configuration closure when it's declared.
 
@@ -140,8 +120,10 @@ using the following syntax:
 
 */
 
-task myTask8(description: "Another description") << {
-    println "Doing something"
+task myTask8(description: "Another description") {
+    doLast {
+        println "Doing something"
+    }
 }
 
 /*

1.13-Demo-ParameterisingYourBuild/build.gradle

@@ -14,8 +14,10 @@ Let's create a task that prints a greeting.
 
 */
 
-task printGreeting << {
-    println greeting
+task printGreeting {
+    doLast {
+       println greeting
+    }
 }
 
 /* If we just run that as is, we get the following error:

2.06-Exercise-DeclareARepositoryAndDependencies/build.gradle

@@ -27,6 +27,8 @@ http://search.maven.org/
 
 apply plugin: 'java'
 
-task printDependencies << {
-    configurations.compile.each { println it.name }
+task printDependencies {
+    doLast {
+        configurations.compile.each { println it.name }
+    }
 }

2.06-Exercise-DeclareARepositoryAndDependencies/solution.gradle

@@ -13,6 +13,8 @@ dependencies {
     compile fileTree(dir: 'libs', include: '*.jar') // 3. Add 'lib' directory
 }
 
-task printDependencies << {
-    configurations.compile.each { println it.name }
+task printDependencies {
+    doLast {
+        configurations.compile.each { println it.name }
+    }
 }

2.13-Exercise-ConfigureTheGradleWrapper/solution.gradle

@@ -38,6 +38,6 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions-snapshots/gradle-2.4-20150406220025+0000-bin.zip
+distributionUrl=https\://services.gradle.org/distributions-snapshots/gradle-3.3-20161128000019+0000-bin.zip
 
 */

3.01-Demo-ImportingGradleProjects/build.gradle

@@ -5,9 +5,11 @@ or build anything, it just tells a joke.
 
 */
 
-task tellJoke << {
-    println "What's a build master's favorite black metal band?"
-    println "Gradle of Filth!"
+task tellJoke {
+    doLast {
+        println "What's a build master's favorite black metal band?"
+        println "Gradle of Filth!"
+    }
 }
 
 /*
@@ -50,10 +52,12 @@ Let's try adding a second task to our project.
 
 */
 
-//task tellAnotherJoke <<{
-//    println "How long does it take to master build tools?"
-//    println "From the Gradle to the grave."
-//}
+// task tellAnotherJoke {
+//     doLast {
+//         println "How long does it take to master build tools?"
+//         println "From the Gradle to the grave."
+//     }
+// }
 
 /*