Update idlsync.py to pull in dependencies required for chrome api generation.

third_party/chrome/tools/diagnose-me.py

Index: third_party/chrome/tools/diagnose-me.py
diff --git a/third_party/chrome/tools/diagnose-me.py b/third_party/chrome/tools/diagnose-me.py
new file mode 100755
index 0000000000000000000000000000000000000000..bbd9429cb1e241f3e448d8638355ae43847ed724
--- /dev/null
+++ b/third_party/chrome/tools/diagnose-me.py
@@ -0,0 +1,95 @@
+#!/usr/bin/python
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Diagnose some common system configuration problems on Linux, and
+suggest fixes."""
+
+import os
+import subprocess
+import sys
+
+all_checks = []
+
+def Check(name):
+    """Decorator that defines a diagnostic check."""
+    def wrap(func):
+        all_checks.append((name, func))
+        return func
+    return wrap
+
+
+@Check("/usr/bin/ld is not gold")
+def CheckSystemLd():
+    proc = subprocess.Popen(['/usr/bin/ld', '-v'], stdout=subprocess.PIPE)
+    stdout = proc.communicate()[0]
+    if 'GNU gold' in stdout:
+        return ("When /usr/bin/ld is gold, system updates can silently\n"
+                "corrupt your graphics drivers.\n"
+                "Try 'sudo apt-get remove binutils-gold'.\n")
+    return None
+
+
+@Check("random lds are not in the $PATH")
+def CheckPathLd():
+    proc = subprocess.Popen(['which', '-a', 'ld'], stdout=subprocess.PIPE)
+    stdout = proc.communicate()[0]
+    instances = stdout.split()
+    if len(instances) > 1:
+        return ("You have multiple 'ld' binaries in your $PATH:\n"
+                + '\n'.join(' - ' + i for i in instances) + "\n"
+                "You should delete all of them but your system one.\n"
+                "gold is hooked into your build via gyp.\n")
+    return None
+
+
+@Check("/usr/bin/ld doesn't point to gold")
+def CheckLocalGold():
+    # Check /usr/bin/ld* symlinks.
+    for path in ('ld.bfd', 'ld'):
+        path = '/usr/bin/' + path
+        try:
+            target = os.readlink(path)
+        except OSError, e:
+            if e.errno == 2:
+                continue  # No such file
+            if e.errno == 22:
+                continue  # Not a symlink
+            raise
+        if '/usr/local/gold' in target:
+            return ("%s is a symlink into /usr/local/gold.\n"
+                    "It's difficult to make a recommendation, because you\n"
+                    "probably set this up yourself.  But you should make\n"
+                    "/usr/bin/ld be the standard linker, which you likely\n"
+                    "renamed /usr/bin/ld.bfd or something like that.\n" % path)
+
+    return None
+
+
+@Check("random ninja binaries are not in the $PATH")
+def CheckPathNinja():
+    proc = subprocess.Popen(['which', 'ninja'], stdout=subprocess.PIPE)
+    stdout = proc.communicate()[0]
+    if not 'depot_tools' in stdout:
+        return ("The ninja binary in your path isn't from depot_tools:\n"
+                + "    " + stdout +
+                "Remove custom ninjas from your path so that the one\n"
+                "in depot_tools is used.\n")
+    return None
+
+
+def RunChecks():
+    for name, check in all_checks:
+        sys.stdout.write("* Checking %s: " % name)
+        sys.stdout.flush()
+        error = check()
+        if not error:
+            print "ok"
+        else:
+            print "FAIL"
+            print error
+
+
+if __name__ == '__main__':
+    RunChecks()