Fix Groovy rules to work with sandboxing

--
Change-Id: Id6b14c65e5737f31001fcbdd0d8e1cf34f21336b
Reviewed-on: https://bazel-review.googlesource.com/1953
MOS_MIGRATED_REVID=102513900

Author: ekuefler

tools/build_defs/groovy/README.md

@@ -19,8 +19,8 @@ libraries and vice-versa.
 To be able to use the Groovy rules, you must provide bindings for the following
 targets:
 
-  * `//external:groovy`, pointing at the core Groovy library
-  * `//external:groovyc`, pointing at the Groovy compiler
+  * `//external:groovy-sdk`, pointing at the
+    [Groovy SDK binaries](http://www.groovy-lang.org/download.html)
   * `//external:junit`, pointing at JUnit (only required if using `groovy_test`)
 
 The easiest way to do so is by copying the content of `groovy.WORKSPACE` to your

tools/build_defs/groovy/groovy.BUILD

@@ -1,5 +1,5 @@
 filegroup(
-    name = "groovyc",
-    srcs = ["groovy-2.4.4/bin/groovyc"],
+    name = "sdk",
+    srcs = glob(["groovy-2.4.4/**"], exclude_directories=0),
     visibility = ["//visibility:public"],
 )

tools/build_defs/groovy/groovy.WORKSPACE

@@ -1,28 +1,19 @@
-bind(
-  name = "groovyc",
-  actual = "@groovy-bin//:groovyc",
-)
 new_http_archive(
-  name = "groovy-bin",
+  name = "groovy-sdk-artifact",
   url = "http://dl.bintray.com/groovy/maven/apache-groovy-binary-2.4.4.zip",
   sha256 = "a7cc1e5315a14ea38db1b2b9ce0792e35174161141a6a3e2ef49b7b2788c258c",
   build_file = "groovy.BUILD",
 )
-
 bind(
-  name = "groovy",
-  actual = "@groovy-jar//jar",
-)
-maven_jar(
-  name = "groovy-jar",
-  artifact = "org.codehaus.groovy:groovy-all:2.3.7",
+  name = "groovy-sdk",
+  actual = "@groovy-sdk-artifact//:sdk",
 )
 
-bind (
-  name = "junit",
-  actual = "@junit-jar//jar",
-)
 maven_jar(
-  name = "junit-jar",
+  name = "junit-artifact",
   artifact = "junit:junit:4.12",
 )
+bind(
+  name = "junit",
+  actual = "@junit-artifact//jar",
+)

tools/build_defs/groovy/groovy.bzl

@@ -27,10 +27,20 @@ def _groovy_jar_impl(ctx):
     if hasattr(this_dep, "java"):
       all_deps += this_dep.java.transitive_runtime_deps
 
+  # Set up the output directory and set JAVA_HOME
+  cmd = "rm -rf %s\n" % build_output
+  cmd += "mkdir -p %s\n" % build_output
+  cmd += "export JAVA_HOME=external/local-jdk\n"
+
+  # Set GROOVY_HOME by scanning through the groovy SDK to find the license file,
+  # which should be at the root of the SDK.
+  for file in ctx.files._groovysdk:
+    if file.basename == "CLI-LICENSE.txt":
+      cmd += "export GROOVY_HOME=%s\n" % file.dirname
+      break
+
   # Compile all files in srcs with groovyc
-  cmd = "rm -rf %s; mkdir -p %s\n" % (build_output, build_output)
-  cmd += "%s %s -d %s %s\n" % (
-      ctx.file._groovyc.short_path,
+  cmd += "$GROOVY_HOME/bin/groovyc %s -d %s %s\n" % (
       "-cp " + ":".join([dep.path for dep in all_deps]) if len(all_deps) != 0 else "",
       build_output,
       " ".join([src.path for src in ctx.files.srcs]),
@@ -43,7 +53,7 @@ def _groovy_jar_impl(ctx):
   cmd += "root=`pwd`\n"
   cmd += "cd %s; $root/%s c ../%s `find . -name '*.class' | cut -c 3-`\n" % (
       build_output,
-      ctx.executable._jar.path,
+      ctx.executable._zipper.path,
       class_jar.basename,
   )
   cmd += "cd $root\n"
@@ -53,7 +63,12 @@ def _groovy_jar_impl(ctx):
 
   # Execute the command
   ctx.action(
-      inputs = ctx.files.srcs + ctx.files.deps + ctx.files._jar,
+      inputs = (
+          ctx.files.srcs
+          + list(all_deps)
+          + ctx.files._groovysdk
+          + ctx.files._jdk
+          + ctx.files._zipper),
       outputs = [class_jar],
       mnemonic = "Groovyc",
       command = "set -e;" + cmd,
@@ -69,17 +84,18 @@ _groovy_jar = rule(
         "deps": attr.label_list(
             mandatory=False,
             allow_files=FileType([".jar"])),
-        "_groovyc": attr.label(
-            default=Label("//external:groovyc"),
-            single_file=True),
-        "_jar": attr.label(
+        "_groovysdk": attr.label(
+            default=Label("//external:groovy-sdk")),
+        "_jdk": attr.label(
+            default=Label("//tools/defaults:jdk")),
+        "_zipper": attr.label(
             default=Label("//third_party/ijar:zipper"),
             executable=True,
             single_file=True),
-        },
+    },
     outputs = {
         "class_jar": "lib%{name}.jar",
-        },
+    },
 )
 
 def groovy_library(name, srcs=[], deps=[], **kwargs):
@@ -135,7 +151,6 @@ def groovy_and_java_library(name, srcs=[], deps=[], **kwargs):
       **kwargs
   )
 
-
 def groovy_binary(name, main_class, srcs=[], deps=[], **kwargs):
   """Rule analagous to java_binary that accepts .groovy sources instead of .java
   sources.
@@ -165,8 +180,14 @@ def path_to_class(path):
     fail("groovy_test sources must be under src/test/java or src/test/groovy")
 
 def groovy_test_impl(ctx):
+  # Collect jars from the Groovy sdk
+  groovy_sdk_jars = [file
+      for file in ctx.files._groovysdk
+      if file.basename.endswith(".jar")
+  ]
+
   # Extract all transitive dependencies
-  all_deps = set(ctx.files.deps + ctx.files._implicit_deps)
+  all_deps = set(ctx.files.deps + ctx.files._implicit_deps + groovy_sdk_jars)
   for this_dep in ctx.attr.deps:
     if hasattr(this_dep, 'java'):
       all_deps += this_dep.java.transitive_runtime_deps
@@ -175,8 +196,7 @@ def groovy_test_impl(ctx):
   classes = [path_to_class(src.path) for src in ctx.files.srcs]
 
   # Write a file that executes JUnit on the inferred classes
-  cmd = "%s %s -cp %s org.junit.runner.JUnitCore %s\n" % (
-      ctx.executable._java.path,
+  cmd = "external/local-jdk/bin/java %s -cp %s org.junit.runner.JUnitCore %s\n" % (
     " ".join(ctx.attr.jvm_flags),
     ":".join([dep.short_path for dep in all_deps]),
     " ".join(classes),
@@ -188,7 +208,7 @@ def groovy_test_impl(ctx):
 
   # Return all dependencies needed to run the tests
   return struct(
-    runfiles=ctx.runfiles(files=list(all_deps) + ctx.files._java),
+    runfiles=ctx.runfiles(files=list(all_deps) + ctx.files._jdk),
   )
 
 groovy_test = rule(
@@ -197,12 +217,11 @@ groovy_test = rule(
     "srcs": attr.label_list(mandatory=True, allow_files=FileType([".groovy"])),
     "deps": attr.label_list(allow_files=FileType([".jar"])),
     "jvm_flags": attr.string_list(),
-    "_java": attr.label(
-      default=Label("@local-jdk//:java"),
-      executable=True,
-      single_file=True),
+    "_groovysdk": attr.label(
+      default=Label("//external:groovy-sdk")),
+    "_jdk": attr.label(
+      default=Label("//tools/defaults:jdk")),
     "_implicit_deps": attr.label_list(default=[
-      Label("//external:groovy"),
       Label("//external:junit"),
     ]),
   },