DevTools: Make eslint mandatory and check node.js/npm modules in presubmit

third_party/WebKit/Source/devtools/PRESUBMIT.py

 # Copyright (C) 2014 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 19 matching lines @@
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
 import sys
 
 compile_note = "Be sure to run your patch by the compile_frontend.py script prior to committing!"
 
 
+def _CheckNodeAndNPMModules(input_api, output_api):
+    node_script_path = input_api.os_path.join(input_api.PresubmitLocalPath(), "scripts", "node.py")
+    process = input_api.subprocess.Popen(
+        [input_api.python_executable, node_script_path],
+        stdout=input_api.subprocess.PIPE,
+        stderr=input_api.subprocess.STDOUT)
+    out, _ = process.communicate()
+    if process.returncode != 0:
+        return [output_api.PresubmitError(out)]
+    return [output_api.PresubmitNotifyResult(out)]
+
+
 def _CheckDevtoolsStyle(input_api, output_api):
     local_paths = [f.AbsoluteLocalPath() for f in input_api.AffectedFiles() if f.Action() != "D"]
 
     devtools_root = input_api.PresubmitLocalPath()
     devtools_front_end = input_api.os_path.join(devtools_root, "front_end")
     affected_front_end_files = [file_name for file_name in local_paths if devtools_front_end in file_name and file_name.endswith(".js")]
     affected_front_end_files = [input_api.os_path.relpath(file_name, devtools_root) for file_name in affected_front_end_files]
     if len(affected_front_end_files) > 0:
         lint_path = input_api.os_path.join(input_api.PresubmitLocalPath(),
                                            "scripts", "lint_javascript.py")
@@ skipping 96 matching lines @@
         for line_number, line in f.ChangedContents():
             if "/deep/" in line:
                 results.append(output_api.PresubmitError(("%s:%d uses /deep/ selector") % (f.LocalPath(), line_number)))
             if "::shadow" in line:
                 results.append(output_api.PresubmitError(("%s:%d uses ::shadow selector") % (f.LocalPath(), line_number)))
     return results
 
 
 def CheckChangeOnUpload(input_api, output_api):
     results = []
+    results.extend(_CheckNodeAndNPMModules(input_api, output_api))
     results.extend(_CheckDevtoolsStyle(input_api, output_api))
     results.extend(_CompileDevtoolsFrontend(input_api, output_api))
     results.extend(_CheckConvertSVGToPNGHashes(input_api, output_api))
     results.extend(_CheckOptimizePNGHashes(input_api, output_api))
     results.extend(_CheckCSSViolations(input_api, output_api))
     return results
 
 
 def CheckChangeOnCommit(input_api, output_api):
     return []