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// Copyright 2008-2010 Victor Iacoban
//
// 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.zmlx.hg4idea;
import com.google.common.base.Objects;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.vcs.history.VcsRevisionNumber;
import org.jetbrains.annotations.NotNull;
import org.zmlx.hg4idea.util.HgUtil;
import java.util.Collections;
import java.util.List;
public class HgRevisionNumber implements VcsRevisionNumber {
@NotNull private final String revision;
@NotNull private final String changeset;
@NotNull private final String commitMessage;
@NotNull private final String author;
@NotNull private final String email;
@NotNull private final List<HgRevisionNumber> parents;
@NotNull private final String mySubject;
private final boolean isWorkingVersion;
// this is needed in place of VcsRevisionNumber.NULL, because sometimes we need to return HgRevisionNumber.
public static final HgRevisionNumber NULL_REVISION_NUMBER = new HgRevisionNumber("", "", "", "", Collections.<HgRevisionNumber>emptyList()) {
@Override
public int compareTo(VcsRevisionNumber o) {
return NULL.compareTo(o);
}
@Override
public String asString() {
return NULL.asString();
}
};
public static HgRevisionNumber getInstance(@NotNull String revision,@NotNull String changeset,@NotNull String author,@NotNull String commitMessage) {
return new HgRevisionNumber(revision, changeset, author, commitMessage, Collections.<HgRevisionNumber>emptyList());
}
public static HgRevisionNumber getInstance(@NotNull String revision,@NotNull String changeset) {
return new HgRevisionNumber(revision, changeset, "", "", Collections.<HgRevisionNumber>emptyList());
}
public static HgRevisionNumber getInstance(@NotNull String revision,@NotNull String changeset,@NotNull List<HgRevisionNumber> parents) {
return new HgRevisionNumber(revision, changeset, "", "", parents);
}
public static HgRevisionNumber getLocalInstance(@NotNull String revision) {
return new HgRevisionNumber(revision, "", "", "", Collections.<HgRevisionNumber>emptyList());
}
public HgRevisionNumber(@NotNull String revision,
@NotNull String changeset,
@NotNull String authorInfo,
@NotNull String commitMessage,
@NotNull List<HgRevisionNumber> parents) {
this.commitMessage = commitMessage;
Pair<String, String> authorArgs = HgUtil.parseUserNameAndEmail(authorInfo);
this.author = authorArgs.getFirst();
this.email = authorArgs.getSecond();
this.parents = parents;
this.revision = revision.trim();
this.changeset = changeset.trim();
isWorkingVersion = changeset.endsWith("+");
int subjectIndex = commitMessage.indexOf('\n');
mySubject = subjectIndex == -1 ? commitMessage : commitMessage.substring(0, subjectIndex);
}
@NotNull
public String getChangeset() {
return changeset;
}
@NotNull
public String getRevision() {
return revision;
}
public long getRevisionAsLong() {
return java.lang.Long.parseLong(revision);
}
@NotNull
public String getCommitMessage() {
return commitMessage;
}
@NotNull
public String getAuthor() {
return author;
}
public boolean isWorkingVersion() {
return isWorkingVersion;
}
public String asString() {
if (revision.isEmpty()) {
return changeset;
}
return revision + ":" + changeset;
}
@NotNull
public List<HgRevisionNumber> getParents() {
return parents;
}
public int compareTo(VcsRevisionNumber o) {
// boundary cases
if (this == o) {
return 0;
}
if (!(o instanceof HgRevisionNumber)) {
return -1;
}
final HgRevisionNumber other = (HgRevisionNumber) o;
if (changeset.equals(other.changeset)) {
return 0;
}
// One of the revisions is local. Local is "greater" than any from the history.
if (changeset.isEmpty()) {
return 1;
}
if (other.changeset.isEmpty()) {
return -1;
}
// compare revision numbers.
final int revCompare = java.lang.Long.valueOf(getRevisionNumber()).compareTo(java.lang.Long.valueOf(other.getRevisionNumber()));
if (revCompare != 0) {
return revCompare;
}
// If they are equal, the working revision is greater.
if (isWorkingVersion) {
return other.isWorkingVersion ? 0 : 1;
} else {
return other.isWorkingVersion ? -1 : 0;
}
}
/**
* Returns the numeric part of the revision, i. e. the revision without trailing '+' if one exists.
*/
public String getRevisionNumber() {
if (isWorkingVersion) {
return revision.substring(0, revision.length()-1);
}
return revision;
}
@Override
public int hashCode() {
return Objects.hashCode(revision, changeset);
}
@Override
public boolean equals(Object object) {
if (object == this) {
return true;
}
if (!(object instanceof HgRevisionNumber)) {
return false;
}
HgRevisionNumber that = (HgRevisionNumber) object;
return compareTo(that) == 0;
}
@Override
public String toString() {
return asString();
}
@NotNull
public String getSubject() {
return mySubject;
}
@NotNull
public String getEmail() {
return email;
}
}
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