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// Copyright (C) 2013 The Android Open Source Project
//
// 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 com.google.gerrit.server.notedb;
import com.google.auto.value.AutoValue;
import com.google.common.annotations.VisibleForTesting;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.config.GerritServerId;
import com.google.inject.Inject;
import java.util.Date;
import java.util.Optional;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.revwalk.FooterKey;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.util.RawParseUtils;
public class ChangeNoteUtil {
public static final FooterKey FOOTER_ASSIGNEE = new FooterKey("Assignee");
public static final FooterKey FOOTER_BRANCH = new FooterKey("Branch");
public static final FooterKey FOOTER_CHANGE_ID = new FooterKey("Change-id");
public static final FooterKey FOOTER_COMMIT = new FooterKey("Commit");
public static final FooterKey FOOTER_CURRENT = new FooterKey("Current");
public static final FooterKey FOOTER_GROUPS = new FooterKey("Groups");
public static final FooterKey FOOTER_HASHTAGS = new FooterKey("Hashtags");
public static final FooterKey FOOTER_LABEL = new FooterKey("Label");
public static final FooterKey FOOTER_PATCH_SET = new FooterKey("Patch-set");
public static final FooterKey FOOTER_PATCH_SET_DESCRIPTION =
new FooterKey("Patch-set-description");
public static final FooterKey FOOTER_PRIVATE = new FooterKey("Private");
public static final FooterKey FOOTER_READ_ONLY_UNTIL = new FooterKey("Read-only-until");
public static final FooterKey FOOTER_REAL_USER = new FooterKey("Real-user");
public static final FooterKey FOOTER_STATUS = new FooterKey("Status");
public static final FooterKey FOOTER_SUBJECT = new FooterKey("Subject");
public static final FooterKey FOOTER_SUBMISSION_ID = new FooterKey("Submission-id");
public static final FooterKey FOOTER_SUBMITTED_WITH = new FooterKey("Submitted-with");
public static final FooterKey FOOTER_TOPIC = new FooterKey("Topic");
public static final FooterKey FOOTER_TAG = new FooterKey("Tag");
public static final FooterKey FOOTER_WORK_IN_PROGRESS = new FooterKey("Work-in-progress");
public static final FooterKey FOOTER_REVERT_OF = new FooterKey("Revert-of");
static final String AUTHOR = "Author";
static final String BASE_PATCH_SET = "Base-for-patch-set";
static final String COMMENT_RANGE = "Comment-range";
static final String FILE = "File";
static final String LENGTH = "Bytes";
static final String PARENT = "Parent";
static final String PARENT_NUMBER = "Parent-number";
static final String PATCH_SET = "Patch-set";
static final String REAL_AUTHOR = "Real-author";
static final String REVISION = "Revision";
static final String UUID = "UUID";
static final String UNRESOLVED = "Unresolved";
static final String TAG = FOOTER_TAG.getName();
private final LegacyChangeNoteRead legacyChangeNoteRead;
private final ChangeNoteJson changeNoteJson;
private final String serverId;
@Inject
public ChangeNoteUtil(
ChangeNoteJson changeNoteJson,
LegacyChangeNoteRead legacyChangeNoteRead,
@GerritServerId String serverId) {
this.serverId = serverId;
this.changeNoteJson = changeNoteJson;
this.legacyChangeNoteRead = legacyChangeNoteRead;
}
public LegacyChangeNoteRead getLegacyChangeNoteRead() {
return legacyChangeNoteRead;
}
public ChangeNoteJson getChangeNoteJson() {
return changeNoteJson;
}
public PersonIdent newIdent(Account.Id authorId, Date when, PersonIdent serverIdent) {
return new PersonIdent(
"Gerrit User " + authorId.toString(),
authorId.get() + "@" + serverId,
when,
serverIdent.getTimeZone());
}
@VisibleForTesting
public PersonIdent newIdent(Account author, Date when, PersonIdent serverIdent) {
return new PersonIdent(
"Gerrit User " + author.getId(),
author.getId().get() + "@" + serverId,
when,
serverIdent.getTimeZone());
}
public static Optional<CommitMessageRange> parseCommitMessageRange(RevCommit commit) {
byte[] raw = commit.getRawBuffer();
int size = raw.length;
int subjectStart = RawParseUtils.commitMessage(raw, 0);
if (subjectStart < 0 || subjectStart >= size) {
return Optional.empty();
}
int subjectEnd = RawParseUtils.endOfParagraph(raw, subjectStart);
if (subjectEnd == size) {
return Optional.empty();
}
int changeMessageStart;
if (raw[subjectEnd] == '\n') {
changeMessageStart = subjectEnd + 2; // \n\n ends paragraph
} else if (raw[subjectEnd] == '\r') {
changeMessageStart = subjectEnd + 4; // \r\n\r\n ends paragraph
} else {
return Optional.empty();
}
int ptr = size - 1;
int changeMessageEnd = -1;
while (ptr > changeMessageStart) {
ptr = RawParseUtils.prevLF(raw, ptr, '\r');
if (ptr == -1) {
break;
}
if (raw[ptr] == '\n') {
changeMessageEnd = ptr - 1;
break;
} else if (raw[ptr] == '\r') {
changeMessageEnd = ptr - 3;
break;
}
}
if (ptr <= changeMessageStart) {
return Optional.empty();
}
CommitMessageRange range =
CommitMessageRange.builder()
.subjectStart(subjectStart)
.subjectEnd(subjectEnd)
.changeMessageStart(changeMessageStart)
.changeMessageEnd(changeMessageEnd)
.build();
return Optional.of(range);
}
@AutoValue
public abstract static class CommitMessageRange {
public abstract int subjectStart();
public abstract int subjectEnd();
public abstract int changeMessageStart();
public abstract int changeMessageEnd();
public static Builder builder() {
return new AutoValue_ChangeNoteUtil_CommitMessageRange.Builder();
}
@AutoValue.Builder
public abstract static class Builder {
abstract Builder subjectStart(int subjectStart);
abstract Builder subjectEnd(int subjectEnd);
abstract Builder changeMessageStart(int changeMessageStart);
abstract Builder changeMessageEnd(int changeMessageEnd);
abstract CommitMessageRange build();
}
}
}
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