390 lines
13 KiB
Python
Executable File
390 lines
13 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright (C) 2011, 2012 Chiel ten Brinke <ctenbrinke@gmail.com>
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# Google Inc.
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#
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# This file is part of YouCompleteMe.
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#
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# YouCompleteMe is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# YouCompleteMe is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with YouCompleteMe. If not, see <http://www.gnu.org/licenses/>.
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from collections import defaultdict
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import os
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import glob
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from ycm.completers.completer import Completer
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from ycm.server import responses
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from ycm import utils
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import urllib2
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import urllib
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import urlparse
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import json
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import logging
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SERVER_NOT_FOUND_MSG = ( 'OmniSharp server binary not found at {0}. ' +
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'Did you compile it? You can do so by running ' +
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'"./install.sh --omnisharp-completer".' )
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MIN_LINES_IN_FILE_TO_PARSE = 5
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INVALID_FILE_MESSAGE = 'File is invalid.'
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FILE_TOO_SHORT_MESSAGE = (
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'File is less than {0} lines long; not parsing.'.format(
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MIN_LINES_IN_FILE_TO_PARSE ) )
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NO_DIAGNOSTIC_MESSAGE = 'No diagnostic for current line!'
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#TODO: Handle this better than dummy classes
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class CsharpDiagnostic:
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def __init__ ( self, ranges, location, location_extent, text, kind ):
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self.ranges_ = ranges
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self.location_ = location
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self.location_extent_ = location_extent
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self.text_ = text
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self.kind_ = kind
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class CsharpDiagnosticRange:
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def __init__ ( self, start, end ):
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self.start_ = start
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self.end_ = end
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class CsharpDiagnosticLocation:
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def __init__ ( self, line, column, filename ):
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self.line_number_ = line
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self.column_number_ = column
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self.filename_ = filename
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class CsharpCompleter( Completer ):
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"""
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A Completer that uses the Omnisharp server as completion engine.
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"""
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subcommands = {
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'StartServer': ( lambda self, request_data: self._StartServer(
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request_data ) ),
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'StopServer': ( lambda self, request_data: self._StopServer() ),
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'RestartServer': ( lambda self, request_data: self._RestartServer(
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request_data ) ),
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'ReloadSolution': ( lambda self, request_data: self._ReloadSolution() ),
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'ServerRunning': ( lambda self, request_data: self._ServerIsRunning() ),
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'ServerReady': ( lambda self, request_data: self._ServerIsReady() ),
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'GoToDefinition': ( lambda self, request_data: self._GoToDefinition(
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request_data ) ),
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'GoToDeclaration': ( lambda self, request_data: self._GoToDefinition(
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request_data ) ),
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'GoTo': ( lambda self, request_data: self._GoToDefinition( request_data ) )
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}
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def __init__( self, user_options ):
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super( CsharpCompleter, self ).__init__( user_options )
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self._omnisharp_port = None
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self._logger = logging.getLogger( __name__ )
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self._diagnostic_store = None
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self._max_diagnostics_to_display = user_options[
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'max_diagnostics_to_display' ]
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def Shutdown( self ):
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if ( self.user_options[ 'auto_stop_csharp_server' ] and
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self._ServerIsRunning() ):
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self._StopServer()
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def SupportedFiletypes( self ):
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""" Just csharp """
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return [ 'cs' ]
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def ComputeCandidatesInner( self, request_data ):
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return [ responses.BuildCompletionData(
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completion[ 'CompletionText' ],
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completion[ 'DisplayText' ],
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completion[ 'Description' ] )
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for completion in self._GetCompletions( request_data ) ]
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def DefinedSubcommands( self ):
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return CsharpCompleter.subcommands.keys()
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def OnFileReadyToParse( self, request_data ):
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if ( not self._omnisharp_port and
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self.user_options[ 'auto_start_csharp_server' ] ):
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self._StartServer( request_data )
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return
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filename = request_data[ 'filepath' ]
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contents = request_data[ 'file_data' ][ filename ][ 'contents' ]
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if contents.count( '\n' ) < MIN_LINES_IN_FILE_TO_PARSE:
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raise ValueError( FILE_TOO_SHORT_MESSAGE )
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if not filename:
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raise ValueError( INVALID_FILE_MESSAGE )
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syntax_errors = self._GetResponse( '/syntaxerrors',
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self._DefaultParameters( request_data ) )
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diagnostics = [ self._SyntaxErrorToDiagnostic( x ) for x in
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syntax_errors[ "Errors" ] ]
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self._diagnostic_store = DiagnosticsToDiagStructure( diagnostics )
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return [ responses.BuildDiagnosticData( x ) for x in
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diagnostics[ : self._max_diagnostics_to_display ] ]
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def _SyntaxErrorToDiagnostic( self, syntax_error ):
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filename = syntax_error[ "FileName" ]
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location = CsharpDiagnosticLocation( syntax_error[ "Line" ],
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syntax_error[ "Column" ], filename )
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location_range = CsharpDiagnosticRange( location, location )
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return CsharpDiagnostic( list(),
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location,
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location_range,
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syntax_error[ "Message" ],
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"E" )
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def GetDetailedDiagnostic( self, request_data ):
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current_line = request_data[ 'line_num' ] + 1
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current_column = request_data[ 'column_num' ] + 1
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current_file = request_data[ 'filepath' ]
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if not self._diagnostic_store:
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raise ValueError( NO_DIAGNOSTIC_MESSAGE )
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diagnostics = self._diagnostic_store[ current_file ][ current_line ]
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if not diagnostics:
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raise ValueError( NO_DIAGNOSTIC_MESSAGE )
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closest_diagnostic = None
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distance_to_closest_diagnostic = 999
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for diagnostic in diagnostics:
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distance = abs( current_column - diagnostic.location_.column_number_ )
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if distance < distance_to_closest_diagnostic:
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distance_to_closest_diagnostic = distance
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closest_diagnostic = diagnostic
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return responses.BuildDisplayMessageResponse(
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closest_diagnostic.text_ )
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def OnUserCommand( self, arguments, request_data ):
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if not arguments:
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raise ValueError( self.UserCommandsHelpMessage() )
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command = arguments[ 0 ]
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if command in CsharpCompleter.subcommands:
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command_lamba = CsharpCompleter.subcommands[ command ]
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return command_lamba( self, request_data )
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else:
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raise ValueError( self.UserCommandsHelpMessage() )
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def DebugInfo( self ):
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if self._ServerIsRunning():
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return 'Server running at: {0}\nLogfiles:\n{1}\n{2}'.format(
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self._ServerLocation(), self._filename_stdout, self._filename_stderr )
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else:
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return 'Server is not running'
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def _StartServer( self, request_data ):
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""" Start the OmniSharp server """
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self._logger.info( 'startup' )
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self._omnisharp_port = utils.GetUnusedLocalhostPort()
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solution_files, folder = _FindSolutionFiles( request_data[ 'filepath' ] )
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if len( solution_files ) == 0:
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raise RuntimeError(
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'Error starting OmniSharp server: no solutionfile found' )
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elif len( solution_files ) == 1:
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solutionfile = solution_files[ 0 ]
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else:
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# multiple solutions found : if there is one whose name is the same
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# as the folder containing the file we edit, use this one
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# (e.g. if we have bla/Project.sln and we are editing
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# bla/Project/Folder/File.cs, use bla/Project.sln)
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filepath_components = _PathComponents( request_data[ 'filepath' ] )
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solutionpath = _PathComponents( folder )
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foldername = ''
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if len( filepath_components ) > len( solutionpath ):
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foldername = filepath_components[ len( solutionpath ) ]
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solution_file_candidates = [ sfile for sfile in solution_files
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if _GetFilenameWithoutExtension( sfile ) == foldername ]
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if len( solution_file_candidates ) == 1:
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solutionfile = solution_file_candidates[ 0 ]
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else:
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raise RuntimeError(
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'Found multiple solution files instead of one!\n{0}'.format(
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solution_files ) )
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omnisharp = os.path.join(
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os.path.abspath( os.path.dirname( __file__ ) ),
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'OmniSharpServer/OmniSharp/bin/Debug/OmniSharp.exe' )
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if not os.path.isfile( omnisharp ):
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raise RuntimeError( SERVER_NOT_FOUND_MSG.format( omnisharp ) )
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path_to_solutionfile = os.path.join( folder, solutionfile )
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# we need to pass the command to Popen as a string since we're passing
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# shell=True (as recommended by Python's doc)
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command = ( omnisharp + ' -p ' + str( self._omnisharp_port ) + ' -s ' +
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path_to_solutionfile )
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if not utils.OnWindows() and not utils.OnCygwin():
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command = 'mono ' + command
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if utils.OnCygwin():
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command = command + ' --client-path-mode Cygwin'
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filename_format = os.path.join( utils.PathToTempDir(),
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'omnisharp_{port}_{sln}_{std}.log' )
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self._filename_stdout = filename_format.format(
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port=self._omnisharp_port, sln=solutionfile, std='stdout' )
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self._filename_stderr = filename_format.format(
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port=self._omnisharp_port, sln=solutionfile, std='stderr' )
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with open( self._filename_stderr, 'w' ) as fstderr:
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with open( self._filename_stdout, 'w' ) as fstdout:
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# shell=True is needed for Windows so OmniSharp does not spawn
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# in a new visible window
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utils.SafePopen( command, stdout=fstdout, stderr=fstderr, shell=True )
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self._logger.info( 'Starting OmniSharp server' )
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def _StopServer( self ):
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""" Stop the OmniSharp server """
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self._GetResponse( '/stopserver' )
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self._omnisharp_port = None
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self._logger.info( 'Stopping OmniSharp server' )
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def _RestartServer ( self, request_data ):
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""" Restarts the OmniSharp server """
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if self._ServerIsRunning():
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self._StopServer()
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return self._StartServer( request_data )
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def _ReloadSolution( self ):
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""" Reloads the solutions in the OmniSharp server """
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self._logger.info( 'Reloading Solution in OmniSharp server' )
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return self._GetResponse( '/reloadsolution' )
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def _GetCompletions( self, request_data ):
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""" Ask server for completions """
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completions = self._GetResponse( '/autocomplete',
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self._DefaultParameters( request_data ) )
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return completions if completions != None else []
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def _GoToDefinition( self, request_data ):
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""" Jump to definition of identifier under cursor """
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definition = self._GetResponse( '/gotodefinition',
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self._DefaultParameters( request_data ) )
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if definition[ 'FileName' ] != None:
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return responses.BuildGoToResponse( definition[ 'FileName' ],
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definition[ 'Line' ] - 1,
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definition[ 'Column' ] - 1 )
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else:
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raise RuntimeError( 'Can\'t jump to definition' )
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def _DefaultParameters( self, request_data ):
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""" Some very common request parameters """
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parameters = {}
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parameters[ 'line' ] = request_data[ 'line_num' ] + 1
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parameters[ 'column' ] = request_data[ 'column_num' ] + 1
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filepath = request_data[ 'filepath' ]
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parameters[ 'buffer' ] = request_data[ 'file_data' ][ filepath ][
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'contents' ]
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parameters[ 'filename' ] = filepath
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return parameters
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def _ServerIsRunning( self ):
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""" Check if our OmniSharp server is running """
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try:
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return bool( self._omnisharp_port and
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self._GetResponse( '/checkalivestatus', silent = True ) )
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except:
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return False
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def _ServerIsReady( self ):
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""" Check if our OmniSharp server is ready """
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try:
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return bool( self._omnisharp_port and
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self._GetResponse( '/checkreadystatus', silent = True ) )
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except:
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return False
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def _ServerLocation( self ):
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return 'http://localhost:' + str( self._omnisharp_port )
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def _GetResponse( self, handler, parameters = {}, silent = False ):
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""" Handle communication with server """
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# TODO: Replace usage of urllib with Requests
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target = urlparse.urljoin( self._ServerLocation(), handler )
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parameters = urllib.urlencode( parameters )
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response = urllib2.urlopen( target, parameters )
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return json.loads( response.read() )
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def _FindSolutionFiles( filepath ):
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""" Find solution files by searching upwards in the file tree """
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folder = os.path.dirname( filepath )
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solutionfiles = glob.glob1( folder, '*.sln' )
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while not solutionfiles:
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lastfolder = folder
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folder = os.path.dirname( folder )
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if folder == lastfolder:
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break
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solutionfiles = glob.glob1( folder, '*.sln' )
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return solutionfiles, folder
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def _PathComponents( path ):
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path_components = []
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while True:
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path, folder = os.path.split( path )
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if folder:
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path_components.append( folder )
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else:
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if path:
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path_components.append( path )
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break
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path_components.reverse()
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return path_components
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def _GetFilenameWithoutExtension( path ):
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return os.path.splitext( os.path.basename ( path ) )[ 0 ]
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def DiagnosticsToDiagStructure( diagnostics ):
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structure = defaultdict( lambda : defaultdict( list ) )
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for diagnostic in diagnostics:
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structure[ diagnostic.location_.filename_ ][
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diagnostic.location_.line_number_ ].append( diagnostic )
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return structure
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