SpaceAssignmentRule: insert new line instead of replacing existing method call to handle complex single line scenarios

src/main/groovy/com/netflix/nebula/lint/rule/dsl/SpaceAssignmentRule.groovy

@@ -1,6 +1,8 @@
 package com.netflix.nebula.lint.rule.dsl
 
+import com.netflix.nebula.lint.rule.BuildFiles
 import com.netflix.nebula.lint.rule.ModelAwareGradleLintRule
+import com.netflix.nebula.lint.utils.IndentUtils
 import org.codehaus.groovy.ast.expr.ClosureExpression
 import org.codehaus.groovy.ast.expr.MethodCallExpression
 
@@ -33,16 +35,22 @@ class SpaceAssignmentRule extends ModelAwareGradleLintRule {
             def deprecatedAnnotation = exactMethod.getAnnotation(Deprecated)
             if (deprecatedAnnotation != null) {
                 // may be false positive when the explicit method is deprecated
-                addBuildLintViolation(description, call)
-                        .replaceWith(call, getReplacement(call))
+                addViolation(call)
             }
         } else {
-            addBuildLintViolation(description, call)
-                    .replaceWith(call, getReplacement(call))
+            addViolation(call)
         }
     }
 
-    def getReplacement(MethodCallExpression call){
+    private void addViolation(MethodCallExpression call) {
+        BuildFiles.Original originalFile = buildFiles.original(call.lineNumber)
+        String replacement = IndentUtils.indentText(call, getReplacement(call))
+        addBuildLintViolation(description, call)
+                .insertBefore(call, replacement)
+                .deleteLines(originalFile.file, originalFile.line..originalFile.line)
+    }
+
+    private String getReplacement(MethodCallExpression call){
         def originalLine = getSourceCode().line(call.lineNumber-1)
         return originalLine.replaceFirst(call.methodAsString, call.methodAsString + " =")
     }

src/main/groovy/com/netflix/nebula/lint/utils/IndentUtils.groovy

@@ -0,0 +1,7 @@
+package com.netflix.nebula.lint.utils
+
+class IndentUtils {
+    static String indentText(def node, String text) {
+        return (' ' * (node.columnNumber - 1)) + text
+    }
+}

src/test/groovy/com/netflix/nebula/lint/rule/dsl/SpaceAssignmentRuleSpec.groovy

@@ -32,7 +32,9 @@ class SpaceAssignmentRuleSpec extends BaseIntegrationTestKitSpec {
                 maven {
                     url = "https://another.example.com"
                 }
-            }
+                maven { url "https://another.example2.com" }
+                maven { url 'https://repo.spring.io/milestone' }
+             }
 
             java {
                 sourceCompatibility JavaVersion.VERSION_1_8
@@ -47,16 +49,21 @@ class SpaceAssignmentRuleSpec extends BaseIntegrationTestKitSpec {
         def result = runTasks('autoLintGradle', '--warning-mode', 'none')
 
         then:
-        result.output.contains("4 problems (0 errors, 4 warnings)")
+        result.output.contains("6 problems (0 errors, 6 warnings)")
 
         when:
-        runTasks('fixLintGradle', '--warning-mode', 'none')
+        runTasks('fixLintGradle', '--warning-mode', 'none', '--no-configuration-cache')
 
         then:
         buildFile.text.contains('buildDir = file("out")')
         buildFile.text.contains('url = "https://example.com"')
         buildFile.text.contains('url =("https://example2.com")')
+        buildFile.text.contains('maven { url = "https://another.example2.com" }')
+        !buildFile.text.contains('maven { maven { url = "https://another.example2.com" } }')
         buildFile.text.contains('sourceCompatibility = JavaVersion.VERSION_1_8')
+
+        and:
+        runTasks('help')
     }
 
     def 'reports and fixes a violation if space assignment syntax is used in some complex cases'() {
@@ -145,5 +152,8 @@ class SpaceAssignmentRuleSpec extends BaseIntegrationTestKitSpec {
         buildFile.text.contains('description = "t15"')
         buildFile.text.contains('distributionPath = "t18"')
         buildFile.text.contains('distributionPath = "t22"')
+
+        and:
+        runTasks('help', '--warning-mode', 'none')
     }
 }