Added information about excludes to export goal

The IntelliJ plugin will use this information for better classpath construction.

Testing Done:
https://travis-ci.org/fkorotkov/pants/builds/62959733

Bugs closed: 1565

Reviewed at https://rbcommons.com/s/twitter/r/2238/

src/python/pants/backend/project_info/tasks/export.py

@@ -16,6 +16,7 @@
 from pants.backend.jvm.ivy_utils import IvyModuleRef
 from pants.backend.jvm.targets.jar_library import JarLibrary
 from pants.backend.jvm.targets.jvm_app import JvmApp
+from pants.backend.jvm.targets.jvm_target import JvmTarget
 from pants.backend.jvm.targets.scala_library import ScalaLibrary
 from pants.backend.project_info.tasks.projectutils import get_jar_infos
 from pants.base.build_environment import get_buildroot
@@ -41,7 +42,7 @@ class Export(ConsoleTask):
   #
   # Note format changes in src/python/pants/docs/export.md and update the Changelog section.
   #
-  DEFAULT_EXPORT_VERSION='1.0.0'
+  DEFAULT_EXPORT_VERSION='1.0.1'
 
   class SourceRootTypes(object):
     """Defines SourceRoot Types Constants"""
@@ -67,6 +68,14 @@ def _jar_id(jar):
     else:
       return '{0}:{1}'.format(jar.org, jar.name)
 
+  @staticmethod
+  def _exclude_id(jar):
+    """Create a string identifier for the Exclude key.
+    :param Exclude jar: key for an excluded jar
+    :returns: String representing the key as a maven coordinate
+    """
+    return '{0}:{1}'.format(jar.org, jar.name)
+
   @staticmethod
   def _address(address):
     """
@@ -172,6 +181,9 @@ def get_transitive_jars(jar_lib):
           info['targets'].append(self._address(dep.address))
           process_target(dep)
 
+      if isinstance(current_target, JvmTarget):
+        info['excludes'] = [self._exclude_id(exclude) for exclude in current_target.excludes]
+
       info['roots'] = map(lambda (source_root, package_prefix): {
         'source_root': source_root,
         'package_prefix': package_prefix

src/python/pants/docs/export.md

@@ -107,6 +107,10 @@ The following is an abbreviated export file from the command in the pants repo:
 
 # Export Format Changes
 
+## 1.0.1
+
+Information about excludes
+
 ## 1.0.0
 
 Initial Version

tests/python/pants_test/backend/project_info/tasks/test_export.py

@@ -175,7 +175,7 @@ def test_version(self):
     result = get_json(self.execute_console_task(
       targets=[self.target('project_info:first')]
     ))
-    self.assertEqual('1.0.0', result['version'])
+    self.assertEqual('1.0.1', result['version'])
 
   def test_sources(self):
     result = get_json(self.execute_console_task(
@@ -237,6 +237,7 @@ def test_jvm_target(self):
     ))
     jvm_target = result['targets']['project_info:jvm_target']
     expected_jmv_target = {
+      'excludes': [],
       'globs': {'globs': ['project_info/this/is/a/source/Foo.scala',
                           'project_info/this/is/a/source/Bar.scala']},
       'libraries': ['org.apache:apache-jar:12.12.2012'],

tests/python/pants_test/backend/project_info/tasks/test_export_integration.py

@@ -57,12 +57,16 @@ def test_export_jar_path_with_excludes(self):
       test_target = 'testprojects/src/java/org/pantsbuild/testproject/exclude:foo'
       json_data = self.run_export(test_target, workdir, ['resolve'])
       self.assertIsNone(json_data.get('libraries').get('com.typesafe.sbt:incremental-compiler:0.13.7'))
+      foo_target = json_data.get('targets').get('testprojects/src/java/org/pantsbuild/testproject/exclude:foo')
+      self.assertTrue('com.typesafe.sbt:incremental-compiler' in foo_target.get('excludes'))
 
   def test_export_jar_path_with_excludes_soft(self):
     with temporary_dir(root_dir=self.workdir_root()) as workdir:
       test_target = 'testprojects/src/java/org/pantsbuild/testproject/exclude:'
       json_data = self.run_export(test_target, workdir, ['resolve', '--resolve-ivy-soft-excludes'])
       self.assertIsNotNone(json_data.get('libraries').get('com.martiansoftware:nailgun-server:0.9.1'))
+      foo_target = json_data.get('targets').get('testprojects/src/java/org/pantsbuild/testproject/exclude:foo')
+      self.assertTrue('com.typesafe.sbt:incremental-compiler' in foo_target.get('excludes'))
 
   def test_export_jar_path(self):
     with temporary_dir(root_dir=self.workdir_root()) as workdir: