plugins/cvs/cvs-core/src/com/intellij/cvsSupport2/connections/local/LocalConnection.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.cvsSupport2.connections.local;
  17
  18 import com.intellij.cvsSupport2.config.LocalSettings;
  19 import com.intellij.cvsSupport2.connections.ConnectionOnProcess;
  20 import com.intellij.cvsSupport2.errorHandling.ErrorRegistry;
  21 import com.intellij.execution.configurations.GeneralCommandLine;
  22 import org.netbeans.lib.cvsclient.connection.AuthenticationException;
  23
  24 import java.io.IOException;
  25 import java.util.StringTokenizer;
  26
  27 /**
  28  * author: lesya
  29  */
  30 public class LocalConnection extends ConnectionOnProcess{
  31   private final LocalSettings myLocalSettings;
  32
  33   public LocalConnection(String repository, LocalSettings localSettings, ErrorRegistry errorRegistry) {
  34     super(repository, errorRegistry);
  35     myLocalSettings = localSettings;
  36   }
  37
  38   public void open() throws AuthenticationException {
  39     if (!myLocalSettings.isCvsClientVerified()) {
  40       verifyServerCapability();
  41       myLocalSettings.setCvsClientVerified(true);
  42     }
  43
  44     final GeneralCommandLine commandLine = new GeneralCommandLine();
  45     commandLine.setExePath(myLocalSettings.PATH_TO_CVS_CLIENT);
  46     StringTokenizer st = new StringTokenizer(myLocalSettings.SERVER_COMMAND.trim());
  47      while (st.hasMoreTokens()) {
  48         commandLine.addParameter(st.nextToken());
  49      }
  50
  51     execute(commandLine);
  52   }
  53
  54   private void verifyServerCapability() throws AuthenticationException {
  55     final GeneralCommandLine commandLine = new GeneralCommandLine();
  56     commandLine.setExePath(myLocalSettings.PATH_TO_CVS_CLIENT);
  57     commandLine.addParameter("-v");
  58     execute(commandLine);
  59     try {
  60       StringBuilder responseBuilder = new StringBuilder();
  61       while(true) {
  62         int c = myInputStream.read();
  63         if (c == -1) {
  64           break;
  65         }
  66         responseBuilder.append((char) c);
  67       }
  68       String[] lines = responseBuilder.toString().split("\n");
  69       for (String line : lines) {
  70         // check that the first non-empty line does not end with (client)
  71         if (line.trim().endsWith("(client)")) {
  72           throw new AuthenticationException("CVS client does not support server mode operation", null);
  73         }
  74         if (line.trim().length() > 0) {
  75           break;
  76         }
  77       }
  78     }
  79     catch (IOException e) {
  80       throw new AuthenticationException("Can't read CVS version", e);
  81     }
  82     closeInternal();
  83   }
  84 }