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/*
* Copyright 2000-2012 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 org.jetbrains.jps.incremental;
import com.intellij.openapi.util.io.FileSystemUtil;
import com.intellij.openapi.util.io.FileUtil;
import gnu.trove.THashSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jps.ModuleChunk;
import org.jetbrains.jps.builders.BuildRootDescriptor;
import org.jetbrains.jps.builders.BuildRootIndex;
import org.jetbrains.jps.builders.BuildTarget;
import org.jetbrains.jps.builders.FileProcessor;
import org.jetbrains.jps.builders.impl.BuildTargetChunk;
import org.jetbrains.jps.builders.java.JavaBuilderUtil;
import org.jetbrains.jps.builders.java.JavaSourceRootDescriptor;
import org.jetbrains.jps.cmdline.ProjectDescriptor;
import org.jetbrains.jps.incremental.storage.Timestamps;
import org.jetbrains.jps.model.java.JpsJavaClasspathKind;
import org.jetbrains.jps.model.java.JpsJavaExtensionService;
import org.jetbrains.jps.model.module.JpsModule;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
/**
* @author Eugene Zhuravlev
* Date: 7/8/12
*/
public class FSOperations {
public static final GlobalContextKey<Set<File>> ALL_OUTPUTS_KEY = GlobalContextKey.create("_all_project_output_dirs_");
/**
* @param context
* @param file
* @return true if file is marked as "dirty" in the <b>current</b> compilation round
* @throws IOException
*/
public static boolean isMarkedDirty(CompileContext context, final File file) throws IOException {
final JavaSourceRootDescriptor rd = context.getProjectDescriptor().getBuildRootIndex().findJavaRootDescriptor(context, file);
if (rd != null) {
final ProjectDescriptor pd = context.getProjectDescriptor();
return pd.fsState.isMarkedForRecompilation(context, rd, file);
}
return false;
}
/**
* Note: marked file will well be visible as "dirty" only on the <b>next</b> compilation round!
* @throws IOException
*/
public static void markDirty(CompileContext context, final File file) throws IOException {
final JavaSourceRootDescriptor rd = context.getProjectDescriptor().getBuildRootIndex().findJavaRootDescriptor(context, file);
if (rd != null) {
final ProjectDescriptor pd = context.getProjectDescriptor();
pd.fsState.markDirty(context, file, rd, pd.timestamps.getStorage(), false);
}
}
public static void markDirtyIfNotDeleted(CompileContext context, final File file) throws IOException {
final JavaSourceRootDescriptor rd = context.getProjectDescriptor().getBuildRootIndex().findJavaRootDescriptor(context, file);
if (rd != null) {
final ProjectDescriptor pd = context.getProjectDescriptor();
pd.fsState.markDirtyIfNotDeleted(context, file, rd, pd.timestamps.getStorage());
}
}
public static void markDeleted(CompileContext context, File file) throws IOException {
final JavaSourceRootDescriptor rd = context.getProjectDescriptor().getBuildRootIndex().findJavaRootDescriptor(context, file);
if (rd != null) {
final ProjectDescriptor pd = context.getProjectDescriptor();
pd.fsState.registerDeleted(rd.target, file, pd.timestamps.getStorage());
}
}
public static void markDirty(CompileContext context, final ModuleChunk chunk, @Nullable FileFilter filter) throws IOException {
final ProjectDescriptor pd = context.getProjectDescriptor();
for (ModuleBuildTarget target : chunk.getTargets()) {
markDirtyFiles(context, target, pd.timestamps.getStorage(), true, null, filter);
}
}
public static void markDirtyRecursively(CompileContext context, ModuleChunk chunk) throws IOException {
Set<JpsModule> modules = chunk.getModules();
Set<ModuleBuildTarget> targets = chunk.getTargets();
final Set<ModuleBuildTarget> dirtyTargets = new HashSet<ModuleBuildTarget>(targets);
// now mark all modules that depend on dirty modules
final JpsJavaClasspathKind classpathKind = JpsJavaClasspathKind.compile(chunk.containsTests());
boolean found = false;
for (BuildTargetChunk targetChunk : context.getProjectDescriptor().getBuildTargetIndex().getSortedTargetChunks(context)) {
if (!found) {
if (targetChunk.getTargets().equals(chunk.getTargets())) {
found = true;
}
}
else {
for (final BuildTarget<?> target : targetChunk.getTargets()) {
if (target instanceof ModuleBuildTarget) {
final Set<JpsModule> deps = getDependentModulesRecursively(((ModuleBuildTarget)target).getModule(), classpathKind);
if (Utils.intersects(deps, modules)) {
for (BuildTarget<?> buildTarget : targetChunk.getTargets()) {
if (buildTarget instanceof ModuleBuildTarget) {
dirtyTargets.add((ModuleBuildTarget)buildTarget);
}
}
break;
}
}
}
}
}
final Timestamps timestamps = context.getProjectDescriptor().timestamps.getStorage();
for (ModuleBuildTarget target : dirtyTargets) {
markDirtyFiles(context, target, timestamps, true, null, null);
}
if (JavaBuilderUtil.isCompileJavaIncrementally(context)) {
// mark as non-incremental only the module that triggered non-incremental change
for (ModuleBuildTarget target : targets) {
context.markNonIncremental(target);
}
}
}
private static Set<JpsModule> getDependentModulesRecursively(final JpsModule module, final JpsJavaClasspathKind kind) {
return JpsJavaExtensionService.dependencies(module).includedIn(kind).recursivelyExportedOnly().getModules();
}
public static void processFilesToRecompile(CompileContext context, ModuleChunk chunk, FileProcessor<JavaSourceRootDescriptor, ModuleBuildTarget> processor) throws IOException {
for (ModuleBuildTarget target : chunk.getTargets()) {
processFilesToRecompile(context, target, processor);
}
}
public static void processFilesToRecompile(CompileContext context, @NotNull ModuleBuildTarget target, FileProcessor<JavaSourceRootDescriptor, ModuleBuildTarget> processor) throws IOException {
context.getProjectDescriptor().fsState.processFilesToRecompile(context, target, processor);
}
static void markDirtyFiles(CompileContext context,
BuildTarget<?> target,
Timestamps timestamps,
boolean forceMarkDirty,
@Nullable THashSet<File> currentFiles,
@Nullable FileFilter filter) throws IOException {
for (BuildRootDescriptor rd : context.getProjectDescriptor().getBuildRootIndex().getTargetRoots(target, context)) {
if (!rd.getRootFile().exists() ||
//temp roots are managed by compilers themselves
(rd instanceof JavaSourceRootDescriptor && ((JavaSourceRootDescriptor)rd).isTemp)) {
continue;
}
if (filter == null) {
context.getProjectDescriptor().fsState.clearRecompile(rd);
}
final FSCache fsCache = rd.canUseFileCache() ? context.getProjectDescriptor().getFSCache() : FSCache.NO_CACHE;
traverseRecursively(context, rd, rd.getRootFile(), timestamps, forceMarkDirty, currentFiles, filter, fsCache);
}
}
private static void traverseRecursively(CompileContext context,
final BuildRootDescriptor rd,
final File file,
@NotNull final Timestamps tsStorage,
final boolean forceDirty,
@Nullable Set<File> currentFiles, @Nullable FileFilter filter, @NotNull FSCache fsCache) throws IOException {
BuildRootIndex rootIndex = context.getProjectDescriptor().getBuildRootIndex();
final File[] children = fsCache.getChildren(file);
if (children != null) { // is directory
if (children.length > 0 && rootIndex.isDirectoryAccepted(file, rd)) {
for (File child : children) {
traverseRecursively(context, rd, child, tsStorage, forceDirty, currentFiles, filter, fsCache);
}
}
}
else { // is file
if (rootIndex.isFileAccepted(file, rd) && (filter == null || filter.accept(file))) {
boolean markDirty = forceDirty;
if (!markDirty) {
markDirty = tsStorage.getStamp(file, rd.getTarget()) != FileSystemUtil.lastModified(file);
}
if (markDirty) {
// if it is full project rebuild, all storages are already completely cleared;
// so passing null because there is no need to access the storage to clear non-existing data
final Timestamps marker = context.isProjectRebuild() ? null : tsStorage;
context.getProjectDescriptor().fsState.markDirty(context, file, rd, marker, false);
}
if (currentFiles != null) {
currentFiles.add(file);
}
}
}
}
public static void pruneEmptyDirs(CompileContext context, @Nullable final Set<File> dirsToDelete) {
if (dirsToDelete == null || dirsToDelete.isEmpty()) return;
Set<File> doNotDelete = ALL_OUTPUTS_KEY.get(context);
if (doNotDelete == null) {
doNotDelete = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
for (BuildTarget<?> target : context.getProjectDescriptor().getBuildTargetIndex().getAllTargets()) {
doNotDelete.addAll(target.getOutputRoots(context));
}
ALL_OUTPUTS_KEY.set(context, doNotDelete);
}
Set<File> additionalDirs = null;
Set<File> toDelete = dirsToDelete;
while (toDelete != null) {
for (File file : toDelete) {
// important: do not force deletion if the directory is not empty!
final boolean deleted = !doNotDelete.contains(file) && file.delete();
if (deleted) {
final File parentFile = file.getParentFile();
if (parentFile != null) {
if (additionalDirs == null) {
additionalDirs = new THashSet<File>(FileUtil.FILE_HASHING_STRATEGY);
}
additionalDirs.add(parentFile);
}
}
}
toDelete = additionalDirs;
additionalDirs = null;
}
}
}
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