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/*
* Copyright (C) 2017, Matthias Sohn <matthias.sohn@sap.com> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.pgm;
import static java.util.function.Predicate.isEqual;
import static org.eclipse.jgit.lib.FileMode.EXECUTABLE_FILE;
import static org.eclipse.jgit.lib.FileMode.GITLINK;
import static org.eclipse.jgit.lib.FileMode.REGULAR_FILE;
import static org.eclipse.jgit.lib.FileMode.SYMLINK;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.errors.RevisionSyntaxException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.CanonicalTreeParser;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
import org.eclipse.jgit.util.QuotedString;
import org.kohsuke.args4j.Option;
import org.kohsuke.args4j.spi.StopOptionHandler;
@Command(common = true, usage = "usage_LsFiles")
class LsFiles extends TextBuiltin {
@Option(name = "--", metaVar = "metaVar_paths", handler = StopOptionHandler.class)
private List<String> paths = new ArrayList<>();
@Override
protected void run() {
try (RevWalk rw = new RevWalk(db);
TreeWalk tw = new TreeWalk(db)) {
final ObjectId head = db.resolve(Constants.HEAD);
if (head == null) {
return;
}
RevCommit c = rw.parseCommit(head);
CanonicalTreeParser p = new CanonicalTreeParser();
p.reset(rw.getObjectReader(), c.getTree());
tw.reset(); // drop the first empty tree, which we do not need here
if (!paths.isEmpty()) {
tw.setFilter(PathFilterGroup.createFromStrings(paths));
}
tw.addTree(p);
tw.addTree(new DirCacheIterator(db.readDirCache()));
tw.setRecursive(true);
while (tw.next()) {
if (filterFileMode(tw, EXECUTABLE_FILE, GITLINK, REGULAR_FILE,
SYMLINK)) {
outw.println(
QuotedString.GIT_PATH.quote(tw.getPathString()));
}
}
} catch (RevisionSyntaxException | IOException e) {
throw die(e.getMessage(), e);
}
}
private boolean filterFileMode(TreeWalk tw, FileMode... modes) {
return Arrays.stream(modes).anyMatch(isEqual(tw.getFileMode(0))
.or(isEqual(tw.getFileMode(1))));
}
}
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