From c6921030f497a7955f4a6145b8b013e6870567ff Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sat, 14 Jul 2018 10:02:56 +1000
Subject: [PATCH] Format via embedded eclipse formatter & add determiner

---
 pom.xml                                       | 37 +++++++++++++++++
 .../java/decompiler/main/Fernflower.java      |  2 +-
 .../spigotmc/fernflower/EclipseFormatter.java | 40 +++++++++++++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 src/org/spigotmc/fernflower/EclipseFormatter.java

diff --git a/pom.xml b/pom.xml
index 9c9b723..340282c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,10 +12,31 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>eclipse-formatter</artifactId>
+            <version>3.14.0-spigotmc-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
     <build>
         <sourceDirectory>./src</sourceDirectory>
 
         <plugins>
+            <plugin>
+                <groupId>net.md-5</groupId>
+                <artifactId>determiner</artifactId>
+                <version>0.1</version>
+                <executions>
+                    <execution>
+                        <phase>process-classes</phase>
+                        <goals>
+                            <goal>transform</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
@@ -38,6 +59,22 @@
                     </archive>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.1.1</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <minimizeJar>true</minimizeJar>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>
\ No newline at end of file
diff --git a/src/org/jetbrains/java/decompiler/main/Fernflower.java b/src/org/jetbrains/java/decompiler/main/Fernflower.java
index 15baac5..85d9b00 100644
--- a/src/org/jetbrains/java/decompiler/main/Fernflower.java
+++ b/src/org/jetbrains/java/decompiler/main/Fernflower.java
@@ -85,7 +85,7 @@ public class Fernflower implements IDecompiledData {
       TextBuffer buffer = new TextBuffer(ClassesProcessor.AVERAGE_CLASS_SIZE);
       buffer.append(DecompilerContext.getProperty(IFernflowerPreferences.BANNER).toString());
       classesProcessor.writeClass(cl, buffer);
-      return buffer.toString();
+      return org.spigotmc.fernflower.EclipseFormatter.format(buffer.toString()); // Spigot
     }
     catch (Throwable ex) {
       DecompilerContext.getLogger().writeMessage("Class " + cl.qualifiedName + " couldn't be fully decompiled.", ex);
diff --git a/src/org/spigotmc/fernflower/EclipseFormatter.java b/src/org/spigotmc/fernflower/EclipseFormatter.java
new file mode 100644
index 0000000..ecd794c
--- /dev/null
+++ b/src/org/spigotmc/fernflower/EclipseFormatter.java
@@ -0,0 +1,40 @@
+package org.spigotmc.fernflower;
+
+import org.eclipse.jdt.core.formatter.CodeFormatter;
+import org.eclipse.jdt.internal.core.util.SimpleDocument;
+import org.eclipse.jdt.internal.formatter.DefaultCodeFormatter;
+import org.eclipse.jdt.internal.formatter.DefaultCodeFormatterOptions;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.text.edits.TextEdit;
+
+public class EclipseFormatter {
+
+  private static final CodeFormatter formatter;
+
+  static {
+    DefaultCodeFormatterOptions options = new DefaultCodeFormatterOptions(null);
+    options.setJavaConventionsSettings();
+
+    options.tab_char = DefaultCodeFormatterOptions.SPACE;
+    options.page_width = 0;
+
+    options.insert_new_line_after_label = true;
+    options.insert_new_line_in_empty_method_body = false;
+    options.insert_new_line_in_empty_type_declaration = false;
+
+    options.insert_space_before_closing_brace_in_array_initializer = false; // Compatability
+    // options.blank_lines_before_first_class_body_declaration = 1; // Needed later
+
+    formatter = new DefaultCodeFormatter(options);
+  }
+
+  public static String format(String contents) throws BadLocationException {
+    TextEdit formatted = formatter.format(CodeFormatter.K_COMPILATION_UNIT, contents, 0, contents.length(), 0, "\n");
+
+    IDocument doc = new SimpleDocument(contents);
+    formatted.apply(doc);
+
+    return doc.get();
+  }
+}