/*
* Copyright (C) 2010, Google Inc.
* Copyright (C) 2006-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.pgm;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Locale;
import java.util.TimeZone;
import org.eclipse.jgit.diff.DiffFormatter;
import org.eclipse.jgit.diff.RawTextComparator;
import org.eclipse.jgit.diff.RenameDetector;
import org.eclipse.jgit.errors.CorruptObjectException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.pgm.internal.CLIText;
import org.eclipse.jgit.pgm.opt.PathTreeFilterHandler;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevObject;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevTree;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.Option;
@Command(common = true, usage = "usage_show")
class Show extends TextBuiltin {
private final TimeZone myTZ = TimeZone.getDefault();
private final DateFormat fmt;
private final DiffFormatter diffFmt = new DiffFormatter( //
new BufferedOutputStream(System.out));
@Argument(index = 0, metaVar = "metaVar_object")
private String objectName;
@Option(name = "--", metaVar = "metaVar_path", multiValued = true, handler = PathTreeFilterHandler.class)
protected TreeFilter pathFilter = TreeFilter.ALL;
// BEGIN -- Options shared with Diff
@Option(name = "-p", usage = "usage_showPatch")
boolean showPatch;
@Option(name = "-M", usage = "usage_detectRenames")
private Boolean detectRenames;
@Option(name = "--no-renames", usage = "usage_noRenames")
void noRenames(@SuppressWarnings("unused") boolean on) {
detectRenames = Boolean.FALSE;
}
@Option(name = "-l", usage = "usage_renameLimit")
private Integer renameLimit;
@Option(name = "--name-status", usage = "usage_nameStatus")
private boolean showNameAndStatusOnly;
@Option(name = "--ignore-space-at-eol")
void ignoreSpaceAtEol(@SuppressWarnings("unused") boolean on) {
diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_TRAILING);
}
@Option(name = "--ignore-leading-space")
void ignoreLeadingSpace(@SuppressWarnings("unused") boolean on) {
diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_LEADING);
}
@Option(name = "-b", aliases = { "--ignore-space-change" })
void ignoreSpaceChange(@SuppressWarnings("unused") boolean on) {
diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_CHANGE);
}
@Option(name = "-w", aliases = { "--ignore-all-space" })
void ignoreAllSpace(@SuppressWarnings("unused") boolean on) {
diffFmt.setDiffComparator(RawTextComparator.WS_IGNORE_ALL);
}
@Option(name = "-U", aliases = { "--unified" }, metaVar = "metaVar_linesOfContext")
void unified(int lines) {
diffFmt.setContext(lines);
}
@Option(name = "--abbrev", metaVar = "metaVar_n")
void abbrev(int lines) {
diffFmt.setAbbreviationLength(lines);
}
@Option(name = "--full-index")
void abbrev(@SuppressWarnings("unused") boolean on) {
diffFmt.setAbbreviationLength(Constants.OBJECT_ID_STRING_LENGTH);
}
@Option(name = "--src-prefix", usage = "usage_srcPrefix")
void sourcePrefix(String path) {
diffFmt.setOldPrefix(path);
}
@Option(name = "--dst-prefix", usage = "usage_dstPrefix")
void dstPrefix(String path) {
diffFmt.setNewPrefix(path);
}
@Option(name = "--no-prefix", usage = "usage_noPrefix")
void noPrefix(@SuppressWarnings("unused") boolean on) {
diffFmt.setOldPrefix(""); //$NON-NLS-1$
diffFmt.setNewPrefix(""); //$NON-NLS-1$
}
// END -- Options shared with Diff
Show() {
fmt = new SimpleDateFormat("EEE MMM dd HH:mm:ss yyyy ZZZZZ", Locale.US); //$NON-NLS-1$
}
@SuppressWarnings("boxing")
@Override
protected void run() throws Exception {
diffFmt.setRepository(db);
try {
diffFmt.setPathFilter(pathFilter);
if (detectRenames != null)
diffFmt.setDetectRenames(detectRenames.booleanValue());
if (renameLimit != null && diffFmt.isDetectRenames()) {
RenameDetector rd = diffFmt.getRenameDetector();
rd.setRenameLimit(renameLimit.intValue());
}
ObjectId objectId;
if (objectName == null)
objectId = db.resolve(Constants.HEAD);
else
objectId = db.resolve(objectName);
RevWalk rw = new RevWalk(db);
try {
RevObject obj = rw.parseAny(objectId);
while (obj instanceof RevTag) {
show((RevTag) obj);
obj = ((RevTag) obj).getObject();
rw.parseBody(obj);
}
switch (obj.getType()) {
case Constants.OBJ_COMMIT:
show(rw, (RevCommit) obj);
break;
case Constants.OBJ_TREE:
outw.print("tree "); //$NON-NLS-1$
outw.print(objectName);
outw.println();
outw.println();
show((RevTree) obj);
break;
case Constants.OBJ_BLOB:
db.open(obj, obj.getType()).copyTo(System.out);
outw.flush();
break;
default:
throw die(MessageFormat.format(
CLIText.get().cannotReadBecause, obj.name(),
obj.getType()));
}
} finally {
rw.release();
}
} finally {
diffFmt.release();
}
}
private void show(RevTag tag) throws IOException {
outw.print(CLIText.get().tagLabel);
outw.print(" "); //$NON-NLS-1$
outw.print(tag.getTagName());
outw.println();
final PersonIdent tagger = tag.getTaggerIdent();
if (tagger != null) {
outw.println(MessageFormat.format(CLIText.get().taggerInfo,
tagger.getName(), tagger.getEmailAddress()));
final TimeZone taggerTZ = tagger.getTimeZone();
fmt.setTimeZone(taggerTZ != null ? taggerTZ : myTZ);
outw.println(MessageFormat.format(CLIText.get().dateInfo,
fmt.format(tagger.getWhen())));
}
outw.println();
final String[] lines = tag.getFullMessage().split("\n"); //$NON-NLS-1$
for (final String s : lines) {
outw.print(" "); //$NON-NLS-1$
outw.print(s);
outw.println();
}
outw.println();
}
private void show(RevTree obj) throws MissingObjectException,
IncorrectObjectTypeException, CorruptObjectException, IOException {
final TreeWalk walk = new TreeWalk(db);
walk.reset();
walk.addTree(obj);
while (walk.next()) {
outw.print(walk.getPathString());
final FileMode mode = walk.getFileMode(0);
if (mode == FileMode.TREE)
outw.print("/"); //$NON-NLS-1$
outw.println();
}
}
private void show(RevWalk rw, final RevCommit c) throws Exception {
char[] outbuffer = new char[Constants.OBJECT_ID_LENGTH * 2];
outw.print(CLIText.get().commitLabel);
outw.print(" "); //$NON-NLS-1$
c.getId().copyTo(outbuffer, outw);
outw.println();
final PersonIdent author = c.getAuthorIdent();
outw.println(MessageFormat.format(CLIText.get().authorInfo,
author.getName(), author.getEmailAddress()));
final TimeZone authorTZ = author.getTimeZone();
fmt.setTimeZone(authorTZ != null ? authorTZ : myTZ);
outw.println(MessageFormat.format(CLIText.get().dateInfo,
fmt.format(author.getWhen())));
outw.println();
final String[] lines = c.getFullMessage().split("\n"); //$NON-NLS-1$
for (final String s : lines) {
outw.print(" "); //$NON-NLS-1$
outw.print(s);
outw.println();
}
outw.println();
if (c.getParentCount() == 1) {
rw.parseHeaders(c.getParent(0));
showDiff(c);
}
outw.flush();
}
private void showDiff(RevCommit c) throws IOException {
final RevTree a = c.getParent(0).getTree();
final RevTree b = c.getTree();
if (showNameAndStatusOnly)
Diff.nameStatus(outw, diffFmt.scan(a, b));
else {
outw.flush();
diffFmt.format(a, b);
diffFmt.flush();
}
outw.println();
}
}