Source Code Cross Referenced for CVSCUtilities.java in  » Source-Control » jcvsweb » com » ice » cvsc » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Source Control » jcvsweb » com.ice.cvsc 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         ** Java cvs client library package.
003:         ** Copyright (c) 1997-2002 by Timothy Gerard Endres
004:         ** 
005:         ** This program is free software.
006:         ** 
007:         ** You may redistribute it and/or modify it under the terms of the GNU
008:         ** Library General Public License (LGPL) as published by the Free Software
009:         ** Foundation.
010:         **
011:         ** Version 2 of the license should be included with this distribution in
012:         ** the file LICENSE.txt, as well as License.html. If the license is not
013:         ** included	with this distribution, you may find a copy at the FSF web
014:         ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the Free
015:         ** Software Foundation at 59 Temple Place - Suite 330, Boston, MA 02111 USA.
016:         **
017:         ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
018:         ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
019:         ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
020:         ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
021:         ** REDISTRIBUTION OF THIS SOFTWARE. 
022:         ** 
023:         */
024:
025:        package com.ice.cvsc;
026:
027:        import java.awt.*;
028:        import java.io.*;
029:        import java.util.*;
030:
031:        /**
032:         * Implements several general utility methods used by the cvs
033:         * client package.
034:         *
035:         * @version $Revision: 2.11 $
036:         * @author Timothy Gerard Endres, <a href="mailto:time@ice.com">time@ice.com</a>.
037:         */
038:
039:        public class CVSCUtilities extends Object {
040:            static public final String RCS_ID = "$Id: CVSCUtilities.java,v 2.11 2003/07/27 01:08:32 time Exp $";
041:            static public final String RCS_REV = "$Revision: 2.11 $";
042:
043:            static private boolean redirectOutErr;
044:            static private PrintStream out;
045:            static private PrintStream err;
046:
047:            static {
048:                CVSCUtilities.redirectOutErr = false;
049:                CVSCUtilities.out = null;
050:                CVSCUtilities.err = null;
051:            }
052:
053:            static public boolean caseSensitivePathNames() {
054:                boolean result = true;
055:
056:                String osname = System.getProperty("os.name");
057:
058:                if (osname != null) {
059:                    if (osname.startsWith("macos"))
060:                        result = false;
061:                    else if (osname.startsWith("Windows"))
062:                        result = false;
063:                }
064:
065:                return result;
066:            }
067:
068:            /**
069:             * This class method determines if a path exists 'within'
070:             * another path. In the cvsc package, we are constantly
071:             * checking to be sure that a directory is contained within
072:             * a given tree, or that a file is in the correct path.
073:             * The difficulty is that each platform has different
074:             * path separators and 'case' requirements. Worse, on
075:             * systems like Windoze, the user can type lower case,
076:             * while the FileDialog returns what may be upper case
077:             * on the file system. This method is an attempt to
078:             * normalize all of this.
079:             *
080:             * @param path The shorter or <em>parent</em> path.
081:             * @param path The longer or <em>child</em> path.
082:             * @return True if subPath is a subdirectory of path.
083:             */
084:
085:            static public boolean isSubpathInPath(String rootPath,
086:                    String subPath) {
087:                boolean result = false;
088:
089:                if (rootPath.length() > subPath.length()) {
090:                    result = false;
091:                } else {
092:                    subPath = CVSCUtilities.importPath(subPath);
093:                    rootPath = CVSCUtilities.importPath(rootPath);
094:
095:                    if (!CVSCUtilities.caseSensitivePathNames()) {
096:                        subPath = subPath.toLowerCase();
097:                        rootPath = rootPath.toLowerCase();
098:                    }
099:
100:                    result = subPath.startsWith(rootPath);
101:                }
102:
103:                if (!result) {
104:                    CVSTracer.traceIf(true,
105:                            "CVSCUtilities.isSubpathInPath: FALSE result\n"
106:                                    + "  adjusted rootPath '" + rootPath
107:                                    + "'\n" + "  adjusted subPath  '" + subPath
108:                                    + "'");
109:                }
110:
111:                return result;
112:            }
113:
114:            static public int computeTranslation(CVSEntry entry) {
115:                String options = entry.getOptions();
116:
117:                int trans = CVSClient.TRANSLATE_ASCII;
118:
119:                if (options != null && options.length() > 0) {
120:                    // REVIEW
121:                    // UNDONE You know this needs more sophisitication...
122:                    if (options.startsWith("-kb")) {
123:                        trans = CVSClient.TRANSLATE_NONE;
124:                    }
125:                }
126:
127:                return trans;
128:            }
129:
130:            // NOTE
131:            // These are not really done. For instance, the Macintosh
132:            // file system treats "::" as if it were "/../" under UNIX,
133:            // and DOS has drive letters with colons, and so on...
134:            // However, for our simply purposes, these translations
135:            // appear to be adequate.
136:            //
137:            static public String exportPath(String path) {
138:                return path.replace('/', File.separatorChar);
139:            }
140:
141:            static public String importPath(String path) {
142:                return path.replace(File.separatorChar, '/');
143:            }
144:
145:            static public String ensureFinalSlash(String path) {
146:                return (path.endsWith("/") ? path : path + "/");
147:            }
148:
149:            static public String stripFinalSlash(String path) {
150:                return (path.endsWith("/") ? path.substring(0,
151:                        (path.length() - 1)) : path);
152:            }
153:
154:            static public String stripFinalSeparator(String path) {
155:                for (;;) {
156:                    if (path.endsWith("/"))
157:                        path = path.substring(0, (path.length() - 1));
158:                    else if (path.endsWith(File.separator))
159:                        path = path.substring(0, (path.length() - 1));
160:                    else
161:                        break;
162:                }
163:
164:                return path;
165:            }
166:
167:            /**
168:             * Given a localDirectory from a CVSEntry, get the
169:             * parent directory of the localDirectory.
170:             */
171:            static public String getLocalParent(String localDir) {
172:                localDir = CVSCUtilities.stripFinalSlash(localDir);
173:                int index = localDir.lastIndexOf('/');
174:                if (index > 0) {
175:                    localDir = localDir.substring(0, index);
176:                }
177:                return localDir;
178:            }
179:
180:            static public int slashCount(String s) {
181:                int result = 0;
182:                for (int cIdx = 0; cIdx < s.length(); ++cIdx) {
183:                    if (s.charAt(cIdx) == '/')
184:                        result++;
185:                }
186:                return result;
187:            }
188:
189:            static public boolean createEmptyFile(File f) {
190:                boolean result = true;
191:
192:                try {
193:                    FileWriter writer = new FileWriter(f);
194:                    writer.close();
195:                } catch (IOException ex) {
196:                    result = false;
197:                    CVSTracer.traceWithStack("ERROR creating empty file '"
198:                            + f.getPath() + "' - " + ex.getMessage());
199:                }
200:
201:                return result;
202:            }
203:
204:            static public void writeStringFile(File f, String str)
205:                    throws IOException {
206:                FileWriter writer = null;
207:
208:                try {
209:                    writer = new FileWriter(f);
210:
211:                    if (str != null) {
212:                        writer.write(str);
213:                    }
214:                } finally {
215:                    if (writer != null)
216:                        writer.close();
217:                }
218:            }
219:
220:            static public String readStringFile(File f) throws IOException {
221:                BufferedReader in = null;
222:                String result = "";
223:
224:                try {
225:                    in = new BufferedReader(new FileReader(f));
226:                    result = in.readLine();
227:                    if (result == null)
228:                        result = "";
229:                } finally {
230:                    if (in != null)
231:                        try {
232:                            in.close();
233:                        } catch (IOException ex) {
234:                        }
235:                }
236:
237:                return result;
238:            }
239:
240:            static public void endRedirectOutput() {
241:                if (CVSCUtilities.redirectOutErr) {
242:                    CVSCUtilities.redirectOutErr = false;
243:                    System.out.flush();
244:                    System.out.close();
245:                    System.setOut(CVSCUtilities.out);
246:                    System.setErr(CVSCUtilities.err);
247:                    CVSCUtilities.out = null;
248:                    CVSCUtilities.err = null;
249:                }
250:            }
251:
252:            public static void integrateEntriesLog(File adminDir)
253:                    throws IOException {
254:                PrintWriter outBak = null;
255:                BufferedReader logIn = null;
256:                BufferedReader entIn = null;
257:
258:                //	System.err.println( "INTEGRATE LOGFILE: " + adminDir.getPath() );
259:
260:                File logF = new File(adminDir, "Entries.Log");
261:
262:                if (!logF.exists())
263:                    return;
264:
265:                //	System.err.println
266:                //		( "Integrating '" + logF.getPath() + "' into 'Entries'" );
267:
268:                Vector nameV = new Vector();
269:                Vector lineV = new Vector();
270:
271:                File entF = new File(adminDir, "Entries");
272:                File bakF = new File(adminDir, "Entries.Backup");
273:
274:                try {
275:                    entIn = new BufferedReader(new FileReader(entF));
276:
277:                    for (;;) {
278:                        String inLine = entIn.readLine();
279:                        if (inLine == null)
280:                            break;
281:
282:                        char ch = inLine.charAt(0);
283:                        if (ch != '/' && ch != 'D')
284:                            continue;
285:
286:                        int begIdx = (ch == 'D' ? 2 : 1);
287:                        int idx = inLine.indexOf("/", begIdx);
288:                        if (idx == -1)
289:                            continue;
290:
291:                        lineV.addElement(inLine);
292:                        nameV.addElement(inLine.substring(begIdx, idx));
293:                    }
294:
295:                    entIn.close();
296:                    entIn = null;
297:
298:                    //	System.err.println( "WE'VE READ " + lineV.size() + " entries" );
299:
300:                    logIn = new BufferedReader(new FileReader(logF));
301:
302:                    for (;;) {
303:                        String inLine = logIn.readLine();
304:                        if (inLine == null)
305:                            break;
306:
307:                        if (inLine.length() < 5)
308:                            break;
309:
310:                        //	System.err.println( "Processing LOG LINE: " + inLine );
311:
312:                        char selCh = inLine.charAt(0);
313:                        char sepCh = inLine.charAt(1);
314:                        if ((selCh != 'A' && selCh != 'R') || sepCh != ' ') {
315:                            //	System.err.println( "IGNORE bad selector: " + inLine );
316:                            continue;
317:                        }
318:
319:                        char ch = inLine.charAt(2);
320:
321:                        int begIdx = (ch == 'D' ? 4 : 3);
322:                        int idx = inLine.indexOf("/", begIdx);
323:                        if (idx == -1)
324:                            continue;
325:
326:                        String name = inLine.substring(begIdx, idx);
327:                        //	System.err.println( "Processing LOG NAME: " + name );
328:
329:                        if (selCh == 'A') {
330:                            if (nameV.contains(name)) {
331:                                //	System.err.println( "OVERWRITING: " + name );
332:                                idx = nameV.indexOf(name);
333:                                lineV.setElementAt(inLine.substring(2), idx);
334:                            } else {
335:                                //	System.err.println( "APPENDING: " + name );
336:                                nameV.addElement(name);
337:                                lineV.addElement(inLine.substring(2));
338:                            }
339:                        } else if (selCh == 'R') {
340:                            if (nameV.contains(name)) {
341:                                //	System.err.println( "REMOVING: " + name );
342:                                idx = nameV.indexOf(name);
343:                                nameV.removeElementAt(idx);
344:                                lineV.removeElementAt(idx);
345:                            } else {
346:                                //	System.err.println( "IGNORING: " + name );
347:                            }
348:                        }
349:                    }
350:
351:                    logIn.close();
352:                    logIn = null;
353:
354:                    //	System.err.println( "WRITING BACKUP: " + bakF.getPath() );
355:                    //	System.err.println( "   nameV.size=" + nameV.size()
356:                    //						+ ", lineV.size=" + lineV.size() );
357:
358:                    outBak = new PrintWriter(new FileWriter(bakF));
359:
360:                    for (int i = 0, sz = nameV.size(); i < sz; ++i) {
361:                        outBak.println(lineV.elementAt(i));
362:                    }
363:
364:                    outBak.close();
365:                    outBak = null;
366:
367:                    //	System.err.println( "RENAMING BACKUP: to " + entF.getPath() );
368:
369:                    entF.delete();
370:                    if (bakF.renameTo(entF)) {
371:                        //	System.err.println( "DELETING LOGFILE: " + logF.getPath() );
372:                        logF.delete();
373:                    } else {
374:                        throw new IOException("RENAME FAILED from '"
375:                                + bakF.getPath() + "' to '" + entF.getPath()
376:                                + "'");
377:                    }
378:
379:                    //	System.err.println( "DONE" );
380:                } finally {
381:                    try {
382:                        if (entIn != null)
383:                            entIn.close();
384:                        if (logIn != null)
385:                            logIn.close();
386:                        if (outBak != null)
387:                            outBak.close();
388:                    } catch (IOException ex) {
389:                    }
390:                }
391:            }
392:
393:        }
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