[14982] | 1 | /*
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| 2 | * Copyright 2004 The Apache Software Foundation
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | *
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| 16 | */
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| 17 | package org.apache.tools.ant.taskdefs.cvslib;
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| 18 |
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| 19 | import org.apache.tools.ant.taskdefs.AbstractCvsTask;
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| 20 |
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| 21 | import java.io.ByteArrayOutputStream;
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| 22 | import java.util.StringTokenizer;
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| 23 |
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| 24 | /**
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| 25 | * this task allows to find out the client and the server version of a
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| 26 | * CVS installation
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| 27 | *
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| 28 | * example usage :
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| 29 | * <cvsversion
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| 30 | * cvsRoot=":pserver:[email protected]:/home/cvspublic"
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| 31 | * passfile="c:/programme/cygwin/home/antoine/.cvspass"
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| 32 | * clientversionproperty="apacheclient"
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| 33 | * serverversionproperty="apacheserver" />
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| 34 | *
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| 35 | * the task can be used also in the API by calling its execute method,
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| 36 | * then calling getServerVersion and/or getClientVersion
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| 37 | *
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| 38 | * @ant.task category="scm"
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| 39 | * @since ant 1.6.1
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| 40 | */
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| 41 | public class CvsVersion extends AbstractCvsTask {
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| 42 | static final long VERSION_1_11_2 = 11102;
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| 43 | static final long MULTIPLY = 100;
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| 44 | private String clientVersion;
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| 45 | private String serverVersion;
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| 46 | private String clientVersionProperty;
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| 47 | private String serverVersionProperty;
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| 48 | /**
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| 49 | * get the CVS client version
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| 50 | * @return CVS client version
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| 51 | */
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| 52 | public String getClientVersion() {
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| 53 | return clientVersion;
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| 54 | }
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| 55 | /**
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| 56 | * get the CVS server version
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| 57 | * @return CVS server version
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| 58 | */
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| 59 | public String getServerVersion() {
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| 60 | return serverVersion;
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| 61 | }
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| 62 | /**
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| 63 | * set a property where to store the CVS client version
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| 64 | * @param clientVersionProperty property for CVS client version
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| 65 | */
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| 66 | public void setClientVersionProperty(String clientVersionProperty) {
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| 67 | this.clientVersionProperty = clientVersionProperty;
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| 68 | }
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| 69 |
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| 70 | /**
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| 71 | * set a property where to store the CVS server version
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| 72 | * @param serverVersionProperty property for CVS server version
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| 73 | */
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| 74 | public void setServerVersionProperty(String serverVersionProperty) {
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| 75 | this.serverVersionProperty = serverVersionProperty;
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| 76 | }
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| 77 | /**
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| 78 | * find out if the server version supports log with S option
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| 79 | * @return boolean indicating if the server version supports log with S option
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| 80 | */
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| 81 | public boolean supportsCvsLogWithSOption() {
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| 82 | if (serverVersion == null) {
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| 83 | return false;
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| 84 | }
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| 85 | StringTokenizer mySt = new StringTokenizer(serverVersion, ".");
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| 86 | long versionNumber;
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| 87 | long counter = MULTIPLY * MULTIPLY;
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| 88 | long version = 0;
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| 89 | while (mySt.hasMoreTokens()) {
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| 90 | String s = mySt.nextToken();
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| 91 | int i = 0;
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| 92 | for (i = 0; i < s.length(); i++) {
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| 93 | if (!Character.isDigit(s.charAt(i))) {
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| 94 | break;
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| 95 | }
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| 96 | }
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| 97 | String s2 = s.substring(0, i);
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| 98 | version = version + counter * Long.parseLong(s2);
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| 99 | if (counter == 1) {
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| 100 | break;
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| 101 | }
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| 102 | counter = counter / MULTIPLY;
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| 103 | }
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| 104 | return (version >= VERSION_1_11_2);
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| 105 | }
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| 106 | /**
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| 107 | * the execute method running CvsVersion
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| 108 | */
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| 109 | public void execute() {
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| 110 | ByteArrayOutputStream bos = new ByteArrayOutputStream();
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| 111 | this.setOutputStream(bos);
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| 112 | ByteArrayOutputStream berr = new ByteArrayOutputStream();
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| 113 | this.setErrorStream(berr);
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| 114 | setCommand("version");
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| 115 | super.execute();
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| 116 | String output = bos.toString();
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| 117 | StringTokenizer st = new StringTokenizer(output);
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| 118 | boolean client = false;
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| 119 | boolean server = false;
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| 120 | boolean cvs = false;
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| 121 | while (st.hasMoreTokens()) {
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| 122 | String currentToken = st.nextToken();
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| 123 | if (currentToken.equals("Client:")) {
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| 124 | client = true;
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| 125 | } else if (currentToken.equals("Server:")) {
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| 126 | server = true;
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| 127 | } else if (currentToken.equals("(CVS)")) {
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| 128 | cvs = true;
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| 129 | }
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| 130 | if (client && cvs) {
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| 131 | if (st.hasMoreTokens()) {
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| 132 | clientVersion = st.nextToken();
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| 133 | }
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| 134 | client = false;
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| 135 | cvs = false;
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| 136 | } else if (server && cvs) {
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| 137 | if (st.hasMoreTokens()) {
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| 138 | serverVersion = st.nextToken();
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| 139 | }
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| 140 | server = false;
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| 141 | cvs = false;
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| 142 | }
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| 143 |
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| 144 | }
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| 145 | if (clientVersionProperty != null) {
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| 146 | getProject().setNewProperty(clientVersionProperty, clientVersion);
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| 147 | }
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| 148 | if (serverVersionProperty != null) {
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| 149 | getProject().setNewProperty(serverVersionProperty, serverVersion);
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| 150 | }
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| 151 | }
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| 152 | }
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