Safer access to runTask in samples.

samples/csvparser/build.gradle

@@ -10,7 +10,7 @@ kotlin {
         binaries {
             executable() {
                 entryPoint = 'sample.csvparser.main'
-                runTask.args './European_Mammals_Red_List_Nov_2009.csv', 4, 100
+                runTask?.args './European_Mammals_Red_List_Nov_2009.csv', 4, 100
             }
         }
     }

samples/curl/build.gradle

@@ -19,9 +19,9 @@ kotlin {
                 if (presets.mingwX64 == hostPreset) {
                     // Add lib path to `libcurl` and its dependencies:
                     linkerOpts += ["-L${MPPTools.mingwPath()}/lib".toString()]
-                    runTask.environment('PATH': "${MPPTools.mingwPath()}/bin".toString())
+                    runTask?.environment('PATH': "${MPPTools.mingwPath()}/bin".toString())
                 }
-                runTask.args('https://www.jetbrains.com/')
+                runTask?.args('https://www.jetbrains.com/')
             }
         }
     }

samples/echoServer/build.gradle

@@ -13,7 +13,7 @@ kotlin {
         binaries {
             executable() {
                 entryPoint = 'sample.echoserver.main'
-                runTask.args(3000)
+                runTask?.args(3000)
             }
         }
 

samples/gitchurn/build.gradle

@@ -12,9 +12,9 @@ kotlin {
                 entryPoint = 'sample.gitchurn.main'
                 if (presets.mingwX64 == hostPreset) {
                     linkerOpts = ["-L${MPPTools.mingwPath()}/lib".toString()]
-                    runTask.environment('PATH', "${MPPTools.mingwPath()}/bin".toString())
+                    runTask?.environment('PATH', "${MPPTools.mingwPath()}/bin".toString())
                 }
-                runTask.args(project.getRootProject().getRootDir().toString() + '/..')
+                runTask?.args(project.getRootProject().getRootDir().toString() + '/..')
             }
         }
         compilations.main.cinterops {

samples/gtk/build.gradle

@@ -12,7 +12,7 @@ kotlin {
                 entryPoint = 'sample.gtk.main'
                 if (presets.mingwX64 == hostPreset) {
                     linkerOpts += ["-L${MPPTools.mingwPath()}/lib".toString()]
-                    runTask.environment('PATH', "${MPPTools.mingwPath()}/bin".toString())
+                    runTask?.environment('PATH', "${MPPTools.mingwPath()}/bin".toString())
                 }
             }
         }

samples/nonBlockingEchoServer/build.gradle

@@ -10,7 +10,7 @@ kotlin {
         binaries {
             executable() {
                 entryPoint = 'sample.nbechoserver.main'
-                runTask.args(3000)
+                runTask?.args(3000)
             }
         }
     }

samples/tensorflow/build.gradle

@@ -13,8 +13,8 @@ kotlin {
             executable() {
                 entryPoint = 'sample.tensorflow.main'
                 linkerOpts += ["-L$tensorflowHome/lib".toString(), '-ltensorflow']
-                runTask.environment('LD_LIBRARY_PATH', "$tensorflowHome/lib".toString())
+                runTask?.environment('LD_LIBRARY_PATH', "$tensorflowHome/lib".toString())
-                runTask.environment('DYLD_LIBRARY_PATH', "$tensorflowHome/lib".toString())
+                runTask?.environment('DYLD_LIBRARY_PATH', "$tensorflowHome/lib".toString())
             }
         }
         compilations.main.cinterops {

samples/tetris/build.gradle

@@ -37,7 +37,7 @@ kotlin {
                         linkerOpts += ['-lSDL2']
                         break
                 }
-                runTask.workingDir(project.provider {
+                runTask?.workingDir(project.provider {
                     kotlin.targets.tetris.binaries.getExecutable(buildType).outputDirectory
                 })
             }

samples/torch/build.gradle

@@ -13,9 +13,9 @@ kotlin {
             executable() {
                 entryPoint = 'sample.torch.main'
                 linkerOpts += ["-L$torchHome/lib".toString(), '-lATen']
-                runTask.dependsOn 'downloadMNIST'
+                runTask?.dependsOn 'downloadMNIST'
-                runTask.environment('LD_LIBRARY_PATH', "$torchHome/lib".toString())
+                runTask?.environment('LD_LIBRARY_PATH', "$torchHome/lib".toString())
-                runTask.environment('DYLD_LIBRARY_PATH', "$torchHome/lib".toString())
+                runTask?.environment('DYLD_LIBRARY_PATH', "$torchHome/lib".toString())
             }
         }
         compilations.main.cinterops {