Mercurial > hg4j

comparison src/org/tmatesoft/hg/repo/HgLookup.java @ 423:9c9c442b5f2e

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Major refactoring of exception handling. Low-level API uses RuntimeExceptions, while checked are left for higher level
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 23 Mar 2012 22:51:18 +0100
parents dfb8405d996f
children 48f993aa2f41
comparison
equal deleted inserted replaced
422:5d1cc7366d04 423:9c9c442b5f2e
20 import java.io.IOException; 20 import java.io.IOException;
21 import java.net.MalformedURLException; 21 import java.net.MalformedURLException;
22 import java.net.URL; 22 import java.net.URL;
23 23
24 import org.tmatesoft.hg.core.HgBadArgumentException; 24 import org.tmatesoft.hg.core.HgBadArgumentException;
25 import org.tmatesoft.hg.core.HgInvalidFileException; 25 import org.tmatesoft.hg.core.HgRepositoryNotFoundException;
26 import org.tmatesoft.hg.core.SessionContext; 26 import org.tmatesoft.hg.core.SessionContext;
27 import org.tmatesoft.hg.internal.BasicSessionContext; 27 import org.tmatesoft.hg.internal.BasicSessionContext;
28 import org.tmatesoft.hg.internal.ConfigFile; 28 import org.tmatesoft.hg.internal.ConfigFile;
29 import org.tmatesoft.hg.internal.DataAccessProvider; 29 import org.tmatesoft.hg.internal.DataAccessProvider;
30 30
44 44
45 public HgLookup(SessionContext ctx) { 45 public HgLookup(SessionContext ctx) {
46 sessionContext = ctx; 46 sessionContext = ctx;
47 } 47 }
48 48
49 public HgRepository detectFromWorkingDir() throws HgInvalidFileException { 49 public HgRepository detectFromWorkingDir() throws HgRepositoryNotFoundException {
50 return detect(System.getProperty("user.dir")); 50 return detect(System.getProperty("user.dir"));
51 } 51 }
52 52
53 public HgRepository detect(String location) throws HgInvalidFileException { 53 public HgRepository detect(String location) throws HgRepositoryNotFoundException {
54 return detect(new File(location)); 54 return detect(new File(location));
55 } 55 }
56 56
57 // look up in specified location and above 57 // look up in specified location and above
58 public HgRepository detect(File location) throws HgInvalidFileException { 58 public HgRepository detect(File location) throws HgRepositoryNotFoundException {
59 File dir = location.getAbsoluteFile(); 59 try {
60 File repository; 60 File dir = location.getAbsoluteFile();
61 do { 61 File repository;
62 repository = new File(dir, ".hg"); 62 do {
63 if (repository.exists() && repository.isDirectory()) { 63 repository = new File(dir, ".hg");
64 break; 64 if (repository.exists() && repository.isDirectory()) {
65 break;
66 }
67 repository = null;
68 dir = dir.getParentFile();
69
70 } while(dir != null);
71 if (repository == null) {
72 throw new HgRepositoryNotFoundException(String.format("Can't locate .hg/ directory of Mercurial repository in %s nor in parent dirs", location)).setLocation(location.getPath());
65 } 73 }
66 repository = null;
67 dir = dir.getParentFile();
68
69 } while(dir != null);
70 if (repository == null) {
71 // return invalid repository
72 return new HgRepository(location.getPath());
73 }
74 try {
75 String repoPath = repository.getParentFile().getCanonicalPath(); 74 String repoPath = repository.getParentFile().getCanonicalPath();
76 return new HgRepository(getContext(), repoPath, repository); 75 return new HgRepository(getContext(), repoPath, repository);
77 } catch (IOException ex) { 76 } catch (IOException ex) {
78 throw new HgInvalidFileException(location.toString(), ex, location); 77 HgRepositoryNotFoundException t = new HgRepositoryNotFoundException("Failed to access repository");
78 t.setLocation(location.getPath()).initCause(ex);
79 throw t;
79 } 80 }
80 } 81 }
81 82
82 public HgBundle loadBundle(File location) throws HgInvalidFileException { 83 public HgBundle loadBundle(File location) throws HgRuntimeException/*FIXME need checked exception for can't find*/ {
83 if (location == null || !location.canRead()) { 84 if (location == null || !location.canRead()) {
84 throw new HgInvalidFileException(String.format("Can't read file %s", location == null ? null : location.getPath()), null, location); 85 throw new HgInvalidFileException(String.format("Can't read file %s", location == null ? null : location.getPath()), null, location);
85 } 86 }
86 return new HgBundle(getContext(), new DataAccessProvider(getContext()), location).link(); 87 return new HgBundle(getContext(), new DataAccessProvider(getContext()), location).link();
87 } 88 }