Build Java projects with multiple files and other cleanups.

build.py

@@ -915,6 +915,7 @@ class Jar(BuildTarget):
             if not s.endswith('.java'):
                 raise InvalidArguments('Jar source %s is not a java file.' % s)
         self.filename = self.name + '.jar'
+        incdirs = kwargs.get('include_directories', [])
 
     def get_main_class(self):
         return self.main_class

ninjabackend.py

@@ -675,16 +675,18 @@ int dummy;
         if main_class != '':
             e = 'e'
         for src in src_list:
-            class_list.append(self.generate_single_java_compile(src, target, compiler, outfile))
+            plain_class_path = self.generate_single_java_compile(src, target, compiler, outfile)
+            class_list.append(plain_class_path)
+        class_dep_list = [os.path.join(self.get_target_private_dir(target), i) for i in class_list]
         jar_rule = 'java_LINKER'
         commands = [c+m+e+f]
         if e != '':
             commands.append(main_class)
         commands.append(self.get_target_filename(target))
-        commands += ['-C', self.get_target_private_dir(target)]
-        commands += class_list
+        for cls in class_list:
+            commands += ['-C', self.get_target_private_dir(target), cls]
         elem = NinjaBuildElement(outname_rel, jar_rule, [])
-        elem.add_dep([os.path.join(self.get_target_private_dir(target), i) for i in class_list])
+        elem.add_dep(class_dep_list)
         elem.add_item('ARGS', commands)
         elem.write(outfile)
         self.check_outputs(elem)
@@ -750,6 +752,9 @@ int dummy;
         args = []
         args += compiler.get_buildtype_args(self.environment.coredata.get_builtin_option('buildtype'))
         args += compiler.get_output_args(self.get_target_private_dir(target))
+        for i in target.include_dirs:
+            for idir in i.get_incdirs():
+                args += ['-sourcepath', os.path.join(self.build_to_src, i.curdir, idir)]
         rel_src = src.rel_to_builddir(self.build_to_src)
         plain_class_path = src.fname[:-4] + 'class'
         rel_obj = os.path.join(self.get_target_private_dir(target), plain_class_path)

test cases/java/1 basic/com/mesonbuild/Simple.java

@@ -1,4 +1,4 @@
-package com.sourceforge.meson;
+package com.mesonbuild;
 
 class Simple {
     public static void main(String [] args) {

test cases/java/1 basic/meson.build

@@ -1,5 +1,5 @@
 project('simplejava', 'java')
 
-javaprog = jar('myprog', 'com/sourceforge/meson/Simple.java',
-  main_class : 'com.sourceforge.meson.Simple')
+javaprog = jar('myprog', 'com/mesonbuild/Simple.java',
+  main_class : 'com.mesonbuild.Simple')
 test('mytest', javaprog)

test cases/java/2 subdir/sub/com/mesonbuild/Simple.java

@@ -0,0 +1,8 @@
+package com.mesonbuild;
+
+class Simple {
+    public static void main(String [] args) {
+        TextPrinter t = new TextPrinter("Printing from Java.");
+        t.print();
+    }
+}

test cases/java/2 subdir/sub/com/mesonbuild/TextPrinter.java

@@ -0,0 +1,14 @@
+package com.mesonbuild;
+
+class TextPrinter {
+
+    private String msg;
+    
+    TextPrinter(String s) {
+        msg = s;
+    }
+    
+    public void print() {
+        System.out.println(msg);
+    }
+}

test cases/java/2 subdir/sub/com/sourceforge/meson/Simple.java

@@ -1,7 +0,0 @@
-package com.sourceforge.meson;
-
-class Simple {
-    public static void main(String [] args) {
-        System.out.println("Java is working.\n");
-    }
-}

test cases/java/2 subdir/sub/meson.build

@@ -1,3 +1,6 @@
-javaprog = jar('myprog', 'com/sourceforge/meson/Simple.java',
-  main_class : 'com.sourceforge.meson.Simple')
+javaprog = jar('myprog',
+ 'com/mesonbuild/Simple.java',
+ 'com/mesonbuild/TextPrinter.java',
+  main_class : 'com.mesonbuild.Simple',
+  include_directories : include_directories('.'))
 test('subdirtest', javaprog)