/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.vcs.changes.shelf;
import com.intellij.diff.DiffDialogHints;
import com.intellij.diff.DiffManager;
import com.intellij.diff.actions.impl.GoToChangePopupBuilder;
import com.intellij.diff.chains.DiffRequestChain;
import com.intellij.diff.chains.DiffRequestProducer;
import com.intellij.diff.chains.DiffRequestProducerException;
import com.intellij.diff.requests.DiffRequest;
import com.intellij.diff.requests.UnknownFileTypeDiffRequest;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.diff.impl.patch.*;
import com.intellij.openapi.diff.impl.patch.apply.ApplyFilePatchBase;
import com.intellij.openapi.extensions.Extensions;
import com.intellij.openapi.fileTypes.UnknownFileType;
import com.intellij.openapi.progress.ProcessCanceledException;
import com.intellij.openapi.progress.ProgressIndicator;
import com.intellij.openapi.project.DumbAware;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Getter;
import com.intellij.openapi.util.UserDataHolder;
import com.intellij.openapi.util.UserDataHolderBase;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vcs.FilePath;
import com.intellij.openapi.vcs.FileStatus;
import com.intellij.openapi.vcs.VcsException;
import com.intellij.openapi.vcs.changes.Change;
import com.intellij.openapi.vcs.changes.ChangeListManager;
import com.intellij.openapi.vcs.changes.CommitContext;
import com.intellij.openapi.vcs.changes.FilePathsHelper;
import com.intellij.openapi.vcs.changes.actions.diff.ChangeGoToChangePopupAction;
import com.intellij.openapi.vcs.changes.patch.ApplyPatchForBaseRevisionTexts;
import com.intellij.openapi.vcs.changes.patch.PatchDiffRequestFactory;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.Consumer;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.vcsUtil.VcsUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.*;
public class DiffShelvedChangesAction extends AnAction implements DumbAware {
public void update(final AnActionEvent e) {
e.getPresentation().setEnabled(isEnabled(e.getDataContext()));
}
public void actionPerformed(final AnActionEvent e) {
showShelvedChangesDiff(e.getDataContext());
}
public static boolean isEnabled(final DataContext dc) {
final Project project = CommonDataKeys.PROJECT.getData(dc);
if (project == null) return false;
ShelvedChangeList[] changeLists = ShelvedChangesViewManager.SHELVED_CHANGELIST_KEY.getData(dc);
if (changeLists == null) changeLists = ShelvedChangesViewManager.SHELVED_RECYCLED_CHANGELIST_KEY.getData(dc);
if (changeLists == null || changeLists.length != 1) return false;
return true;
}
public static void showShelvedChangesDiff(final DataContext dc) {
final Project project = CommonDataKeys.PROJECT.getData(dc);
if (project == null) return;
if (ChangeListManager.getInstance(project).isFreezedWithNotification(null)) return;
ShelvedChangeList[] changeLists = ShelvedChangesViewManager.SHELVED_CHANGELIST_KEY.getData(dc);
if (changeLists == null) changeLists = ShelvedChangesViewManager.SHELVED_RECYCLED_CHANGELIST_KEY.getData(dc);
if (changeLists == null || changeLists.length != 1) return;
final List<ShelvedChange> textChanges = changeLists[0].getChanges(project);
final List<ShelvedBinaryFile> binaryChanges = changeLists[0].getBinaryFiles();
final List<MyDiffRequestProducer> diffRequestProducers = new ArrayList<>();
processTextChanges(project, textChanges, diffRequestProducers);
processBinaryFiles(project, binaryChanges, diffRequestProducers);
Collections.sort(diffRequestProducers, ChangeDiffRequestComparator.getInstance());
// selected changes inside lists
final Set<Object> selectedChanges = new HashSet<>();
selectedChanges.addAll(ContainerUtil.notNullize(ShelvedChangesViewManager.SHELVED_CHANGE_KEY.getData(dc)));
selectedChanges.addAll(ContainerUtil.notNullize(ShelvedChangesViewManager.SHELVED_BINARY_FILE_KEY.getData(dc)));
int index = 0;
for (int i = 0; i < diffRequestProducers.size(); i++) {
MyDiffRequestProducer producer = diffRequestProducers.get(i);
if (selectedChanges.contains(producer.getBinaryChange()) || selectedChanges.contains(producer.getTextChange())) {
index = i;
break;
}
}
MyDiffRequestChain chain = new MyDiffRequestChain(diffRequestProducers, index);
DiffManager.getInstance().showDiff(project, chain, DiffDialogHints.FRAME);
}
private static class ChangeDiffRequestComparator implements Comparator<DiffRequestProducer> {
private final static ChangeDiffRequestComparator ourInstance = new ChangeDiffRequestComparator();
public static ChangeDiffRequestComparator getInstance() {
return ourInstance;
}
@Override
public int compare(DiffRequestProducer o1, DiffRequestProducer o2) {
return FilePathsHelper.convertPath(o1.getName()).compareTo(FilePathsHelper.convertPath(o2.getName()));
}
}
private static void processBinaryFiles(@NotNull final Project project,
@NotNull List<ShelvedBinaryFile> files,
@NotNull List<MyDiffRequestProducer> diffRequestProducers) {
final String base = project.getBaseDir().getPath();
for (final ShelvedBinaryFile shelvedChange : files) {
final File file = new File(base, shelvedChange.AFTER_PATH == null ? shelvedChange.BEFORE_PATH : shelvedChange.AFTER_PATH);
final FilePath filePath = VcsUtil.getFilePath(file);
diffRequestProducers.add(new MyDiffRequestProducer(shelvedChange, filePath) {
@NotNull
@Override
public DiffRequest process(@NotNull UserDataHolder context, @NotNull ProgressIndicator indicator)
throws DiffRequestProducerException, ProcessCanceledException {
Change change = shelvedChange.createChange(project);
return PatchDiffRequestFactory.createDiffRequest(project, change, getName(), context, indicator);
}
});
}
}
private static void processTextChanges(@NotNull final Project project,
@NotNull List<ShelvedChange> changesFromFirstList,
@NotNull List<MyDiffRequestProducer> diffRequestProducers) {
final String base = project.getBasePath();
final ApplyPatchContext patchContext = new ApplyPatchContext(project.getBaseDir(), 0, false, false);
final PatchesPreloader preloader = new PatchesPreloader(project);
for (final ShelvedChange shelvedChange : changesFromFirstList) {
final String beforePath = shelvedChange.getBeforePath();
final String afterPath = shelvedChange.getAfterPath();
final FilePath filePath = VcsUtil.getFilePath(new File(base, afterPath == null ? beforePath : afterPath));
final boolean isNewFile = FileStatus.ADDED.equals(shelvedChange.getFileStatus());
final VirtualFile file; // isNewFile -> parent directory, !isNewFile -> file
try {
file = ApplyFilePatchBase.findPatchTarget(patchContext, beforePath, afterPath, isNewFile);
if (!isNewFile && (file == null || !file.exists())) throw new FileNotFoundException(beforePath);
}
catch (IOException e) {
diffRequestProducers.add(new MyDiffRequestProducer(shelvedChange, filePath) {
@NotNull
@Override
public DiffRequest process(@NotNull UserDataHolder context, @NotNull ProgressIndicator indicator)
throws DiffRequestProducerException, ProcessCanceledException {
throw new DiffRequestProducerException("Cannot find base for '" + (beforePath != null ? beforePath : afterPath) + "'");
}
});
continue;
}
diffRequestProducers.add(new MyDiffRequestProducer(shelvedChange, filePath) {
@NotNull
@Override
public DiffRequest process(@NotNull UserDataHolder context, @NotNull ProgressIndicator indicator)
throws DiffRequestProducerException, ProcessCanceledException {
if (!isNewFile && file.getFileType() == UnknownFileType.INSTANCE) {
return new UnknownFileTypeDiffRequest(file, getName());
}
if (shelvedChange.isConflictingChange(project)) {
try {
final CommitContext commitContext = new CommitContext();
final TextFilePatch patch = preloader.getPatch(shelvedChange, commitContext);
final FilePath pathBeforeRename = patchContext.getPathBeforeRename(file);
final String relativePath = patch.getAfterName() == null ? patch.getBeforeName() : patch.getAfterName();
final Getter<CharSequence> baseContentGetter = new Getter<CharSequence>() {
@Override
public CharSequence get() {
BaseRevisionTextPatchEP baseRevisionTextPatchEP =
Extensions.findExtension(PatchEP.EP_NAME, project, BaseRevisionTextPatchEP.class);
return baseRevisionTextPatchEP.provideContent(relativePath, commitContext);
}
};
Getter<ApplyPatchForBaseRevisionTexts> getter = new Getter<ApplyPatchForBaseRevisionTexts>() {
@Override
public ApplyPatchForBaseRevisionTexts get() {
return ApplyPatchForBaseRevisionTexts.create(project, file, pathBeforeRename, patch, baseContentGetter);
}
};
return PatchDiffRequestFactory.createConflictDiffRequest(project, file, patch, "Shelved Version", getter, getName(), context, indicator);
}
catch (VcsException e) {
throw new DiffRequestProducerException("Can't show diff for '" + getName() + "'", e);
}
}
else {
final Change change = shelvedChange.getChange(project);
return PatchDiffRequestFactory.createDiffRequest(project, change, getName(), context, indicator);
}
}
});
}
}
private static class PatchesPreloader {
private final Map<String, List<TextFilePatch>> myFilePatchesMap;
private final Project myProject;
private PatchesPreloader(final Project project) {
myProject = project;
myFilePatchesMap = new HashMap<>();
}
@NotNull
public TextFilePatch getPatch(final ShelvedChange shelvedChange, CommitContext commitContext) throws VcsException {
List<TextFilePatch> textFilePatches = myFilePatchesMap.get(shelvedChange.getPatchPath());
if (textFilePatches == null) {
try {
textFilePatches = ShelveChangesManager.loadPatches(myProject, shelvedChange.getPatchPath(), commitContext);
}
catch (IOException e) {
throw new VcsException(e);
}
catch (PatchSyntaxException e) {
throw new VcsException(e);
}
myFilePatchesMap.put(shelvedChange.getPatchPath(), textFilePatches);
}
for (TextFilePatch textFilePatch : textFilePatches) {
if (shelvedChange.getBeforePath().equals(textFilePatch.getBeforeName())) {
return textFilePatch;
}
}
throw new VcsException("Can not find patch for " + shelvedChange.getBeforePath() + " in patch file.");
}
}
private static class MyDiffRequestChain extends UserDataHolderBase implements DiffRequestChain, GoToChangePopupBuilder.Chain {
@NotNull private final List<MyDiffRequestProducer> myProducers;
private int myIndex = 0;
public MyDiffRequestChain(@NotNull List<MyDiffRequestProducer> producers, int index) {
myProducers = producers;
myIndex = index;
}
@NotNull
@Override
public List<? extends DiffRequestProducer> getRequests() {
return myProducers;
}
@Override
public int getIndex() {
return myIndex;
}
@Override
public void setIndex(int index) {
assert index >= 0 && index < myProducers.size();
myIndex = index;
}
@NotNull
@Override
public AnAction createGoToChangeAction(@NotNull Consumer<Integer> onSelected) {
return new ChangeGoToChangePopupAction.Fake<MyDiffRequestChain>(this, myIndex, onSelected) {
@NotNull
@Override
protected FilePath getFilePath(int index) {
return myProducers.get(index).getFilePath();
}
@NotNull
@Override
protected FileStatus getFileStatus(int index) {
return myProducers.get(index).getFileStatus();
}
};
}
}
private static abstract class MyDiffRequestProducer implements DiffRequestProducer {
@Nullable private final ShelvedChange myTextChange;
@Nullable private final ShelvedBinaryFile myBinaryChange;
@NotNull private final FilePath myFilePath;
public MyDiffRequestProducer(@NotNull ShelvedChange textChange, @NotNull FilePath filePath) {
myBinaryChange = null;
myTextChange = textChange;
myFilePath = filePath;
}
public MyDiffRequestProducer(@NotNull ShelvedBinaryFile binaryChange, @NotNull FilePath filePath) {
myBinaryChange = binaryChange;
myTextChange = null;
myFilePath = filePath;
}
@Nullable
public ShelvedChange getTextChange() {
return myTextChange;
}
@Nullable
public ShelvedBinaryFile getBinaryChange() {
return myBinaryChange;
}
@NotNull
@Override
public String getName() {
return FileUtil.toSystemDependentName(getFilePath().getPath());
}
@NotNull
protected FileStatus getFileStatus() {
if (myTextChange != null) {
return myTextChange.getFileStatus();
}
else {
assert myBinaryChange != null;
return myBinaryChange.getFileStatus();
}
}
@NotNull
public FilePath getFilePath() {
return myFilePath;
}
}
}