Fix replacing source file in Replay Editor (fixes #57)

This commit is contained in:
johni0702
2017-01-24 09:39:12 +01:00
parent d2def94fc1
commit 3f2b3d62f7

View File

@@ -1,5 +1,6 @@
package com.replaymod.editor.gui;
import com.google.common.io.Files;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.gson.JsonObject;
@@ -34,6 +35,7 @@ import de.johni0702.minecraft.gui.popup.GuiInfoPopup;
import de.johni0702.minecraft.gui.popup.GuiYesNoPopup;
import de.johni0702.minecraft.gui.utils.Colors;
import net.minecraft.crash.CrashReport;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.lwjgl.util.ReadableDimension;
@@ -119,10 +121,21 @@ public class GuiReplayEditor extends GuiScreen {
public void save(File inputFile, PacketStream.FilterInfo...filters) {
save(FilenameUtils.getBaseName(inputFile.getName()), (outputFile) -> {
Studio studio = new ReplayStudio();
try (ReplayFile outputReplay = new ZipReplayFile(studio, inputFile, outputFile);
ReplayOutputStream out = outputReplay.writePacketData()) {
// The input replay file MUST be closed before saving the output file
try (ReplayFile inputReplay = new ZipReplayFile(studio, inputFile);
File tmpDir = null;
try {
File actualOutputFile = outputFile;
if (outputFile.getCanonicalPath().equals(inputFile.getCanonicalPath())) {
// Input and output files are identical. Due to the way the ZipReplayFile stores its temporary
// data, the same replay file must not be opened twice for writing (tmp files will be deleted once
// either one is closed or, on Windows, will throw an exception when deleted).
tmpDir = Files.createTempDir();
outputFile = new File(tmpDir, "replay.mcpr");
LOGGER.debug("Output file is identical to input file, using temporary output file {} instead",
outputFile);
}
try (ReplayFile outputReplay = new ZipReplayFile(studio, inputFile, outputFile);
ReplayOutputStream out = outputReplay.writePacketData();
ReplayFile inputReplay = new ZipReplayFile(studio, inputFile);
ReplayInputStream in = inputReplay.getPacketData()) {
ReplayMetaData metaData = inputReplay.getMetaData();
PacketStream stream = studio.createReplayStream(in, true);
@@ -154,11 +167,21 @@ public class GuiReplayEditor extends GuiScreen {
// Update duration of new replay
metaData.setDuration((int) lastTimestamp);
outputReplay.writeMetaData(metaData);
out.close();
outputReplay.save();
}
if (outputFile != actualOutputFile) {
LOGGER.debug("Moving temporary output file {} to {}");
FileUtils.forceDelete(actualOutputFile);
FileUtils.moveFile(outputFile, actualOutputFile);
}
out.close();
outputReplay.save();
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
if (tmpDir != null && !FileUtils.deleteQuietly(tmpDir)) {
LOGGER.warn("Failed to delete temporary directory {}", tmpDir);
}
}
});
}