old_contents: # Copyright 2016 Google Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Bazel rule to generate copybara reference docs."""
  
  def _doc_impl(ctx):
      jars = []
      for dep in ctx.attr.deps:
          for jar in dep.java.transitive_source_jars:
              jars.append(jar)
      tmp = ctx.actions.declare_file("tmp.md")
      ctx.actions.run(
          inputs = [ctx.executable._doc_tool] + jars,
          outputs = [tmp],
          progress_message = "Generating reference documentation for %s" % ctx.label,
          use_default_shell_env = True,
          executable = ctx.executable._doc_tool.path,
          arguments = [tmp.path] + [f.path for f in jars],
      )
  
      # If suffix file exists, concat, copy otherwise
      if ctx.attr.suffix_file != None:
          ctx.actions.run_shell(
              inputs = [ctx.files.suffix_file[0], tmp],
              outputs = [ctx.outputs.out],
              progress_message = "Appending suffix from %s" % ctx.files.suffix_file,
              command = "cat %s %s >> %s" % (tmp.path, ctx.files.suffix_file[0].path, ctx.outputs.out.path),
          )
      else:
          ctx.actions.run(
              inputs = [tmp],
              outputs = [ctx.outputs.out],
              executable = "/bin/cp",
              arguments = [tmp.path, ctx.outputs.out.path],
          )
  
  # Generates documentation by scanning the transitive set of dependencies of a Java binary.
  doc_generator = rule(
      attrs = {
          "deps": attr.label_list(allow_rules = [
              "java_binary",
              "java_library",
          ]),
          "_doc_tool": attr.label(
              executable = True,
              cfg = "host",
              allow_files = True,
              default = Label("//java/com/google/copybara:doc_skylark.sh"),
          ),
          "suffix_file": attr.label(mandatory = False, allow_single_file = True),
      },
      outputs = {"out": "%{name}.md"},
      implementation = _doc_impl,
  )
  
new_contents: # Copyright 2016 Google Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Bazel rule to generate copybara reference docs."""
  
  def _doc_impl(ctx):
      jars = []
      for dep in ctx.attr.deps:
          for jar in dep.java.transitive_source_jars.to_list():
              jars.append(jar)
      tmp = ctx.actions.declare_file("tmp.md")
      ctx.actions.run(
          tools = [ctx.executable._doc_tool],
          inputs = jars,
          outputs = [tmp],
          progress_message = "Generating reference documentation for %s" % ctx.label,
          use_default_shell_env = True,
          executable = ctx.executable._doc_tool.path,
          arguments = [tmp.path] + [f.path for f in jars],
      )
  
      # If suffix file exists, concat, copy otherwise
      if ctx.attr.suffix_file != None:
          ctx.actions.run_shell(
              inputs = [ctx.files.suffix_file[0], tmp],
              outputs = [ctx.outputs.out],
              progress_message = "Appending suffix from %s" % ctx.files.suffix_file,
              command = "cat %s %s >> %s" % (tmp.path, ctx.files.suffix_file[0].path, ctx.outputs.out.path),
          )
      else:
          ctx.actions.run(
              inputs = [tmp],
              outputs = [ctx.outputs.out],
              executable = "/bin/cp",
              arguments = [tmp.path, ctx.outputs.out.path],
          )
  
  # Generates documentation by scanning the transitive set of dependencies of a Java binary.
  doc_generator = rule(
      attrs = {
          "deps": attr.label_list(allow_rules = [
              "java_binary",
              "java_library",
          ]),
          "_doc_tool": attr.label(
              executable = True,
              cfg = "host",
              allow_files = True,
              default = Label("//java/com/google/copybara:doc_skylark.sh"),
          ),
          "suffix_file": attr.label(mandatory = False, allow_single_file = True),
      },
      outputs = {"out": "%{name}.md"},
      implementation = _doc_impl,
  )
  
subject: Update Starlark code to latest Bazel