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// Copyright (C) 2009 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.sshd.commands;
import static com.google.gerrit.util.cli.Localizable.localizable;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.Objects.requireNonNull;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.common.flogger.FluentLogger;
import com.google.common.io.CharStreams;
import com.google.gerrit.entities.LabelType;
import com.google.gerrit.entities.LabelValue;
import com.google.gerrit.entities.PatchSet;
import com.google.gerrit.exceptions.StorageException;
import com.google.gerrit.extensions.api.GerritApi;
import com.google.gerrit.extensions.api.changes.AbandonInput;
import com.google.gerrit.extensions.api.changes.ChangeApi;
import com.google.gerrit.extensions.api.changes.MoveInput;
import com.google.gerrit.extensions.api.changes.NotifyHandling;
import com.google.gerrit.extensions.api.changes.RestoreInput;
import com.google.gerrit.extensions.api.changes.ReviewInput;
import com.google.gerrit.extensions.api.changes.RevisionApi;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.json.OutputFormat;
import com.google.gerrit.server.DynamicOptions;
import com.google.gerrit.server.config.AllProjectsName;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectState;
import com.google.gerrit.server.update.RetryHelper;
import com.google.gerrit.server.update.RetryableAction.ActionType;
import com.google.gerrit.server.util.LabelVote;
import com.google.gerrit.sshd.CommandMetaData;
import com.google.gerrit.sshd.SshCommand;
import com.google.gerrit.util.cli.CmdLineParser;
import com.google.gerrit.util.cli.OptionUtil;
import com.google.gson.JsonSyntaxException;
import com.google.inject.Inject;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.AnnotatedElement;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.TreeMap;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.Option;
import org.kohsuke.args4j.OptionDef;
import org.kohsuke.args4j.spi.FieldSetter;
import org.kohsuke.args4j.spi.OneArgumentOptionHandler;
import org.kohsuke.args4j.spi.Setter;
@CommandMetaData(name = "review", description = "Apply reviews to one or more patch sets")
public class ReviewCommand extends SshCommand {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
@Override
protected final CmdLineParser newCmdLineParser(Object options) {
CmdLineParser parser = super.newCmdLineParser(options);
optionMap.forEach((o, s) -> parser.addOption(s, o));
return parser;
}
private final Set<PatchSet> patchSets = new HashSet<>();
@Argument(
index = 0,
required = true,
multiValued = true,
metaVar = "{COMMIT | CHANGE,PATCHSET}",
usage = "list of commits or patch sets to review")
void addPatchSetId(String token) {
try {
PatchSet ps = psParser.parsePatchSet(token, projectState, branch);
patchSets.add(ps);
} catch (UnloggedFailure e) {
throw new IllegalArgumentException(e.getMessage(), e);
} catch (StorageException e) {
throw new IllegalArgumentException("database error", e);
}
}
@Option(
name = "--project",
aliases = "-p",
usage = "project containing the specified patch set(s)")
private ProjectState projectState;
@Option(name = "--branch", aliases = "-b", usage = "branch containing the specified patch set(s)")
private String branch;
@Option(
name = "--message",
aliases = "-m",
usage = "cover message to publish on change(s)",
metaVar = "MESSAGE")
private String changeComment;
@Option(
name = "--notify",
aliases = "-n",
usage = "Who to send email notifications to after the review is stored.",
metaVar = "NOTIFYHANDLING")
private NotifyHandling notify;
@Option(name = "--abandon", usage = "abandon the specified change(s)")
private boolean abandonChange;
@Option(name = "--restore", usage = "restore the specified abandoned change(s)")
private boolean restoreChange;
@Option(name = "--rebase", usage = "rebase the specified change(s)")
private boolean rebaseChange;
@Option(name = "--move", usage = "move the specified change(s)", metaVar = "BRANCH")
private String moveToBranch;
@Option(name = "--submit", aliases = "-s", usage = "submit the specified patch set(s)")
private boolean submitChange;
@Option(name = "--json", aliases = "-j", usage = "read review input json from stdin")
private boolean json;
@Option(
name = "--tag",
aliases = "-t",
usage = "applies a tag to the given review",
metaVar = "TAG")
private String changeTag;
@Option(
name = "--label",
aliases = "-l",
usage = "custom label(s) to assign",
metaVar = "LABEL=VALUE")
void addLabel(String token) {
LabelVote v = LabelVote.parseWithEquals(token);
LabelType.checkName(v.label()); // Disallow SUBM.
customLabels.put(v.label(), v.value());
}
@Inject private ProjectCache projectCache;
@Inject private AllProjectsName allProjects;
@Inject private GerritApi gApi;
@Inject private PatchSetParser psParser;
@Inject private RetryHelper retryHelper;
private Map<Option, LabelSetter> optionMap;
private Map<String, Short> customLabels;
@Override
protected void run() throws UnloggedFailure {
enableGracefulStop();
if (abandonChange) {
if (restoreChange) {
throw die("abandon and restore actions are mutually exclusive");
}
if (submitChange) {
throw die("abandon and submit actions are mutually exclusive");
}
if (rebaseChange) {
throw die("abandon and rebase actions are mutually exclusive");
}
if (moveToBranch != null) {
throw die("abandon and move actions are mutually exclusive");
}
}
if (json) {
if (restoreChange) {
throw die("json and restore actions are mutually exclusive");
}
if (submitChange) {
throw die("json and submit actions are mutually exclusive");
}
if (abandonChange) {
throw die("json and abandon actions are mutually exclusive");
}
if (changeComment != null) {
throw die("json and message are mutually exclusive");
}
if (rebaseChange) {
throw die("json and rebase actions are mutually exclusive");
}
if (moveToBranch != null) {
throw die("json and move actions are mutually exclusive");
}
if (changeTag != null) {
throw die("json and tag actions are mutually exclusive");
}
}
if (rebaseChange) {
if (submitChange) {
throw die("rebase and submit actions are mutually exclusive");
}
}
boolean ok = true;
ReviewInput input = null;
if (json) {
input = reviewFromJson();
}
for (PatchSet patchSet : patchSets) {
try {
if (input != null) {
applyReview(patchSet, input);
} else {
reviewPatchSet(patchSet);
}
} catch (RestApiException | UnloggedFailure e) {
ok = false;
writeError("error", e.getMessage() + "\n");
} catch (NoSuchChangeException e) {
ok = false;
writeError("error", "no such change " + patchSet.id().changeId().get());
} catch (Exception e) {
ok = false;
writeError("fatal", "internal server error while reviewing " + patchSet.id() + "\n");
logger.atSevere().withCause(e).log("internal error while reviewing %s", patchSet.id());
}
}
if (!ok) {
throw die("one or more reviews failed; review output above");
}
}
private void applyReview(PatchSet patchSet, ReviewInput review) throws Exception {
retryHelper
.action(
ActionType.CHANGE_UPDATE,
"applyReview",
() -> {
gApi.changes()
.id(patchSet.id().changeId().get())
.revision(patchSet.commitId().name())
.review(review);
return null;
})
.call();
}
private ReviewInput reviewFromJson() throws UnloggedFailure {
try (InputStreamReader r = new InputStreamReader(in, UTF_8)) {
return OutputFormat.JSON.newGson().fromJson(CharStreams.toString(r), ReviewInput.class);
} catch (IOException | JsonSyntaxException e) {
writeError("error", e.getMessage() + '\n');
throw die("internal error while reading review input");
}
}
private void reviewPatchSet(PatchSet patchSet) throws Exception {
ReviewInput review = new ReviewInput();
review.message = Strings.emptyToNull(changeComment);
review.tag = Strings.emptyToNull(changeTag);
review.notify = notify;
review.labels = new TreeMap<>();
review.drafts = ReviewInput.DraftHandling.PUBLISH;
for (LabelSetter setter : optionMap.values()) {
setter.getValue().ifPresent(v -> review.labels.put(setter.getLabelName(), v));
}
review.labels.putAll(customLabels);
// We don't need to add the review comment when abandoning/restoring.
if (abandonChange || restoreChange || moveToBranch != null) {
review.message = null;
}
try {
if (abandonChange) {
AbandonInput input = new AbandonInput();
input.message = Strings.emptyToNull(changeComment);
applyReview(patchSet, review);
changeApi(patchSet).abandon(input);
} else if (restoreChange) {
RestoreInput input = new RestoreInput();
input.message = Strings.emptyToNull(changeComment);
changeApi(patchSet).restore(input);
applyReview(patchSet, review);
} else {
applyReview(patchSet, review);
}
if (moveToBranch != null) {
MoveInput moveInput = new MoveInput();
moveInput.destinationBranch = moveToBranch;
moveInput.message = Strings.emptyToNull(changeComment);
changeApi(patchSet).move(moveInput);
}
if (rebaseChange) {
revisionApi(patchSet).rebase();
}
if (submitChange) {
revisionApi(patchSet).submit();
}
} catch (IllegalStateException | RestApiException e) {
throw die(e);
}
}
private ChangeApi changeApi(PatchSet patchSet) throws RestApiException {
return gApi.changes().id(patchSet.id().changeId().get());
}
private RevisionApi revisionApi(PatchSet patchSet) throws RestApiException {
return changeApi(patchSet).revision(patchSet.commitId().name());
}
@Override
protected void parseCommandLine(DynamicOptions pluginOptions) throws UnloggedFailure {
optionMap = new LinkedHashMap<>();
customLabels = new HashMap<>();
ProjectState allProjectsState;
try {
allProjectsState = projectCache.getAllProjects();
} catch (Exception e) {
throw die("missing " + allProjects.get(), e);
}
for (LabelType type : allProjectsState.getLabelTypes().getLabelTypes()) {
StringBuilder usage = new StringBuilder("score for ").append(type.getName()).append("\n");
for (LabelValue v : type.getValues()) {
usage.append(v.format()).append("\n");
}
optionMap.put(newApproveOption(type, usage.toString()), new LabelSetter(type));
}
super.parseCommandLine(pluginOptions);
}
private static String asOptionName(LabelType type) {
return "--" + type.getName().toLowerCase();
}
private static Option newApproveOption(LabelType type, String usage) {
return OptionUtil.newOption(
asOptionName(type),
ImmutableList.of(),
usage,
"N",
false,
false,
false,
LabelHandler.class,
ImmutableList.of(),
ImmutableList.of());
}
private static class LabelSetter implements Setter<Short> {
private final LabelType type;
private Optional<Short> value;
LabelSetter(LabelType type) {
this.type = requireNonNull(type);
this.value = Optional.empty();
}
Optional<Short> getValue() {
return value;
}
LabelType getLabelType() {
return type;
}
String getLabelName() {
return type.getName();
}
@Override
public void addValue(Short value) {
this.value = Optional.of(value);
}
@Override
public Class<Short> getType() {
return Short.class;
}
@Override
public boolean isMultiValued() {
return false;
}
@Override
public FieldSetter asFieldSetter() {
throw new UnsupportedOperationException();
}
@Override
public AnnotatedElement asAnnotatedElement() {
throw new UnsupportedOperationException();
}
}
public static class LabelHandler extends OneArgumentOptionHandler<Short> {
private final LabelType type;
public LabelHandler(
org.kohsuke.args4j.CmdLineParser parser, OptionDef option, Setter<Short> setter) {
super(parser, option, setter);
this.type = ((LabelSetter) setter).getLabelType();
}
@Override
protected Short parse(String token) throws NumberFormatException, CmdLineException {
String argument = token;
if (argument.startsWith("+")) {
argument = argument.substring(1);
}
short value = Short.parseShort(argument);
LabelValue min = type.getMin();
LabelValue max = type.getMax();
if (value < min.getValue() || value > max.getValue()) {
String e =
"\""
+ token
+ "\" must be in range "
+ min.formatValue()
+ ".."
+ max.formatValue()
+ " for \""
+ asOptionName(type)
+ "\"";
throw new CmdLineException(owner, localizable(e));
}
return value;
}
}
}