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1
11 package org.eclipse.team.internal.ccvs.ui.wizards;
12
13
14 import java.io.ByteArrayOutputStream  ;
15 import java.io.File ;
16 import java.io.FileNotFoundException ;
17 import java.io.FileOutputStream ;
18 import java.io.IOException ;
19 import java.io.PrintStream ;
20 import java.lang.reflect.InvocationTargetException ;
21
22 import org.eclipse.core.resources.IResource;
23 import org.eclipse.core.runtime.IProgressMonitor;
24 import org.eclipse.core.runtime.SubProgressMonitor;
25 import org.eclipse.jface.dialogs.MessageDialog;
26 import org.eclipse.jface.operation.IRunnableWithProgress;
27 import org.eclipse.swt.dnd.Clipboard;
28 import org.eclipse.swt.dnd.TextTransfer;
29 import org.eclipse.swt.dnd.Transfer;
30 import org.eclipse.swt.widgets.Shell;
31 import org.eclipse.team.core.RepositoryProvider;
32 import org.eclipse.team.core.TeamException;
33 import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
34 import org.eclipse.team.internal.ccvs.core.CVSTeamProvider;
35 import org.eclipse.team.internal.ccvs.core.client.Command.LocalOption;
36 import org.eclipse.team.internal.ccvs.ui.CVSUIMessages;
37 import org.eclipse.team.internal.ccvs.ui.CVSUIPlugin;
38
39
44 public class GenerateDiffFileOperation implements IRunnableWithProgress {
45
46 private File outputFile;
47 private IResource resource;
48 private Shell shell;
49 private LocalOption[] options;
50
51 GenerateDiffFileOperation(IResource resource, File file, LocalOption[] options, Shell shell) {
52 this.resource = resource;
53 this.outputFile = file;
54 this.shell = shell;
55 this.options = options;
56 }
57
58
61 public void run(IProgressMonitor monitor) throws InvocationTargetException , InterruptedException {
62
63 final CVSTeamProvider provider = (CVSTeamProvider)RepositoryProvider.getProvider(resource.getProject(), CVSProviderPlugin.getTypeId());
64 monitor.beginTask("", 500); monitor.setTaskName(CVSUIMessages.GenerateCVSDiff_working); try {
67 if (outputFile != null) {
68 generateDiffToFile(monitor, provider, outputFile);
69 } else {
70 generateDiffToClipboard(monitor, provider);
71 }
72 } catch (TeamException e) {
73 throw new InvocationTargetException (e);
74 } finally {
75 monitor.done();
76 }
77 }
78
79 private void generateDiffToFile(IProgressMonitor monitor, CVSTeamProvider provider, File file) throws TeamException {
80
81 final FileOutputStream os;
82 try {
83 os= new FileOutputStream (file);
84 try {
85 provider.diff(resource, options, new PrintStream (os), new SubProgressMonitor(monitor, 500));
86 } finally {
87 os.close();
88 }
89 } catch (FileNotFoundException e) {
90 throw new TeamException(CVSUIMessages.GenerateDiffFileOperation_0, e); } catch (IOException e) {
92 throw new TeamException(CVSUIMessages.GenerateDiffFileOperation_1, e); }
94
95 if (file.length() == 0) {
96 outputFile.delete();
97 reportEmptyDiff();
98 }
99 }
100
101 private void generateDiffToClipboard(IProgressMonitor monitor, CVSTeamProvider provider) throws TeamException {
102 final ByteArrayOutputStream os = new ByteArrayOutputStream ();
103 try {
104 try {
105 provider.diff(resource, options, new PrintStream (os), new SubProgressMonitor(monitor, 500));
106 } finally {
107 os.close();
108 }
109 } catch (IOException e) {
110 throw new TeamException(CVSUIMessages.GenerateDiffFileOperation_2, e); }
112 if (os.size() == 0) {
113 reportEmptyDiff();
114 } else {
115 copyToClipboard(os);
116 }
117 }
118
119 private void copyToClipboard(final ByteArrayOutputStream baos) {
120 shell.getDisplay().syncExec(new Runnable () {
121 public void run() {
122 TextTransfer plainTextTransfer = TextTransfer.getInstance();
123 Clipboard clipboard = new Clipboard(shell.getDisplay());
124 clipboard.setContents(
125 new String []{baos.toString()},
126 new Transfer[]{plainTextTransfer});
127 clipboard.dispose();
128 }
129 });
130 }
131
132 private void reportEmptyDiff() {
133 CVSUIPlugin.openDialog(shell, new CVSUIPlugin.IOpenableInShell() {
134 public void open(Shell shell) {
135 MessageDialog.openInformation(
136 shell,
137 CVSUIMessages.GenerateCVSDiff_noDiffsFoundTitle, CVSUIMessages.GenerateCVSDiff_noDiffsFoundMsg); }
140 }, CVSUIPlugin.PERFORM_SYNC_EXEC);
141 }
142 }
143 |
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