git-try: Use trychange library for HTTP submits.

Make git-try use trychange for both SVN and HTTP try
server submits.  Simplifies git-try and reduces chance
of differences in behavior between SVN and HTTP try
job submits.

Exit early if the checkout's configured email address
does not pass validation.

Simplify trychange import.

BUG=none
TEST=git-try submits a job to the try server
Review URL: http://codereview.chromium.org/173394

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@24315 0039d316-1c4b-4281-b951-d872f2087c98

git-try

@@ -8,6 +8,8 @@ import tempfile
 import traceback
 import urllib
 import sys
+import re
+import trychange
 
 
 def Backquote(cmd):
@@ -93,54 +95,24 @@ def GetMungedDiff(branch):
   return munged_diff
 
 
+def ValidEmail(email):
+  return re.match(r"^[a-zA-Z0-9._%-+]+@[a-zA-Z0-9._%-]+.[a-zA-Z]{2,6}$", email)
+
+
 def GetEmail():
-  # TODO: check for errors here?
-  return Backquote(['git', 'config', 'user.email'])
+  email = Backquote(['git', 'config', 'user.email'])
+  runmsg = "Try: git config user.email <EMAIL>"
+  assert ValidEmail(email), "Email '%s' is not valid.  %s" % (email, runmsg)
+  return email
 
 
 def TryChange(args):
-  """Put a patch on the try server using SVN."""
+  """Put a patch on the try server."""
   root_dir = Backquote(['git', 'rev-parse', '--show-cdup'])
-  script_path = os.path.dirname(sys.argv[0])
-  sys.path.append(script_path)
-  try:
-    import trychange
-  except ImportError, e:
-    print "Error trying to import trychange from", script_path
-    print "git-try expects to live at depot_tools/git-try"
-    raise e
   trychange.checkout_root = os.path.abspath(root_dir)
   trychange.TryChange(args, None, False)
 
 
-def WriteTryDiffHTTP(config, patch_name, diff, options):
-  """Put a patch on the try server."""
-  params = {
-      'user': getpass.getuser(),
-      'name': patch_name,
-      'patch': diff
-  }
-
-  if GetRietveldPatchsetNumber():
-    params['issue'] = GetRietveldIssueNumber()
-    params['patchset'] = GetRietveldPatchsetNumber()
-
-  if options.bot:
-    params['bot'] = options.bot
-
-  if options.clobber:
-    params['clobber'] = 'true'
-
-  url = 'http://%s:%s/send_try_patch' % (config['try_server_http_host'],
-                                         config['try_server_http_port'])
-  connection = urllib.urlopen(url, urllib.urlencode(params))
-  response = connection.read()
-  if (response != 'OK'):
-    print "Error posting to", url
-    print response
-    assert False
-
-
 if __name__ == '__main__':
   parser = optparse.OptionParser(
       usage='git try [options] [branch]',
@@ -161,44 +133,53 @@ if __name__ == '__main__':
   patch_name = GetPatchName()
   diff = GetMungedDiff(branch)
 
-  # Send directly to try server if we can parse the config, otherwise
+  # Write the diff out to a temporary file
+  diff_file = tempfile.NamedTemporaryFile()
+  diff_file.write(diff)
+  diff_file.flush()
+
+  email = GetEmail()
+  user = email.partition('@')[0]
+  args = [
+      '-u', user,
+      '-e', email,
+      '-n', patch_name,
+      '--diff', diff_file.name,
+  ]
+
+  # Send to try server via HTTP if we can parse the config, otherwise
   # upload via SVN.
   config = GetTryServerConfig()
   if config is not None:
-    print "Sending %s using HTTP..." % patch_name
-    WriteTryDiffHTTP(config=config, patch_name=patch_name, diff=diff,
-                     options=options)
+    sendmsg = "Sending %s using HTTP..." % patch_name
+    args.extend(['--use_http'])
+    if config['try_server_http_host'] is not None:
+      args.extend(['--host', config['try_server_http_host']])
+    if config['try_server_http_port'] is not None:
+      args.extend(['--port', config['try_server_http_port']])
+
   else:
     print "Could not get server config -- if you're within Google, "
     print "do you have have src-internal checked out?"
-    print "Sending %s using SVN..." % patch_name
-
-    # Write the diff out to a temporary file
-    diff_file = tempfile.NamedTemporaryFile()
-    diff_file.write(diff)
-    diff_file.flush()
-
-    email = GetEmail()
-    user = email.partition('@')[0]
-    args = [
-        '--use_svn',
-        '--svn_repo', 'svn://svn.chromium.org/chrome-try/try',
-        '-u', user,
-        '-e', email,
-        '-n', patch_name,
-        '--diff', diff_file.name,
-    ]
-    if options.bot:
-      args.extend(['--bot', options.bot])
-    if options.clobber:
-      args.append('--clobber')
-    if options.revision:
-      args.extend(['-r', options.revision])
-    else:
-      args.extend(['-r', GetRevision()])
-    if GetRietveldPatchsetNumber():
-      args.extend([
-          '--issue', GetRietveldIssueNumber(),
-          '--patchset', GetRietveldPatchsetNumber(),
-      ])
-    TryChange(args=args)
+    sendmsg = "Sending %s using SVN..." % patch_name
+    args.extend([
+        '--use_svn', '--svn_repo',
+        'svn://svn.chromium.org/chrome-try/try',
+    ])
+
+  if options.bot:
+    args.extend(['--bot', options.bot])
+  if options.clobber:
+    args.append('--clobber')
+  if options.revision:
+    args.extend(['-r', options.revision])
+  else:
+    args.extend(['-r', GetRevision()])
+  if GetRietveldPatchsetNumber():
+    args.extend([
+        '--issue', GetRietveldIssueNumber(),
+        '--patchset', GetRietveldPatchsetNumber(),
+    ])
+
+  print sendmsg
+  TryChange(args=args)