| // Copyright (C) 2016 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.mail.send; |
| |
| import static com.google.common.collect.ImmutableList.toImmutableList; |
| import static com.google.gerrit.server.util.AttentionSetUtil.additionsOnly; |
| |
| import com.google.common.base.Splitter; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ListMultimap; |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.common.Nullable; |
| import com.google.gerrit.entities.Account; |
| import com.google.gerrit.entities.AttentionSetUpdate; |
| import com.google.gerrit.entities.Change; |
| import com.google.gerrit.entities.ChangeSizeBucket; |
| import com.google.gerrit.entities.NotifyConfig.NotifyType; |
| import com.google.gerrit.entities.Patch; |
| import com.google.gerrit.entities.PatchSet; |
| import com.google.gerrit.entities.PatchSetInfo; |
| import com.google.gerrit.entities.Project; |
| import com.google.gerrit.exceptions.EmailException; |
| import com.google.gerrit.exceptions.StorageException; |
| import com.google.gerrit.extensions.api.changes.NotifyHandling; |
| import com.google.gerrit.extensions.api.changes.RecipientType; |
| import com.google.gerrit.extensions.client.GeneralPreferencesInfo.EmailStrategy; |
| import com.google.gerrit.extensions.restapi.AuthException; |
| import com.google.gerrit.mail.MailHeader; |
| import com.google.gerrit.server.StarredChangesUtil; |
| import com.google.gerrit.server.account.AccountState; |
| import com.google.gerrit.server.mail.send.ProjectWatch.Watchers; |
| import com.google.gerrit.server.notedb.ReviewerStateInternal; |
| import com.google.gerrit.server.patch.DiffNotAvailableException; |
| import com.google.gerrit.server.patch.DiffOptions; |
| import com.google.gerrit.server.patch.FilePathAdapter; |
| import com.google.gerrit.server.patch.PatchSetInfoNotAvailableException; |
| import com.google.gerrit.server.patch.filediff.FileDiffOutput; |
| import com.google.gerrit.server.permissions.ChangePermission; |
| import com.google.gerrit.server.permissions.GlobalPermission; |
| import com.google.gerrit.server.permissions.PermissionBackendException; |
| import com.google.gerrit.server.project.ProjectState; |
| import com.google.gerrit.server.query.change.ChangeData; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.text.MessageFormat; |
| import java.time.Instant; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.TreeMap; |
| import java.util.TreeSet; |
| import java.util.stream.Collectors; |
| import org.apache.http.client.utils.URIBuilder; |
| import org.apache.james.mime4j.dom.field.FieldName; |
| import org.eclipse.jgit.diff.DiffFormatter; |
| import org.eclipse.jgit.internal.JGitText; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.util.RawParseUtils; |
| import org.eclipse.jgit.util.TemporaryBuffer; |
| |
| /** Sends an email to one or more interested parties. */ |
| public abstract class ChangeEmail extends NotificationEmail { |
| |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| protected static ChangeData newChangeData( |
| EmailArguments ea, Project.NameKey project, Change.Id id) { |
| return ea.changeDataFactory.create(project, id); |
| } |
| |
| protected static ChangeData newChangeData( |
| EmailArguments ea, Project.NameKey project, Change.Id id, ObjectId metaId) { |
| return ea.changeDataFactory.create(ea.changeNotesFactory.createChecked(project, id, metaId)); |
| } |
| |
| private final Set<Account.Id> currentAttentionSet; |
| protected final Change change; |
| protected final ChangeData changeData; |
| protected ListMultimap<Account.Id, String> stars; |
| protected PatchSet patchSet; |
| protected PatchSetInfo patchSetInfo; |
| protected String changeMessage; |
| protected Instant timestamp; |
| |
| protected ProjectState projectState; |
| protected Set<Account.Id> authors; |
| protected boolean emailOnlyAuthors; |
| protected boolean emailOnlyAttentionSetIfEnabled; |
| |
| protected ChangeEmail(EmailArguments args, String messageClass, ChangeData changeData) { |
| super(args, messageClass, changeData.change().getDest()); |
| this.changeData = changeData; |
| change = changeData.change(); |
| emailOnlyAuthors = false; |
| emailOnlyAttentionSetIfEnabled = true; |
| currentAttentionSet = getAttentionSet(); |
| } |
| |
| @Override |
| public void setFrom(Account.Id id) { |
| super.setFrom(id); |
| |
| // Is the from user in an email squelching group? |
| try { |
| args.permissionBackend.absentUser(id).check(GlobalPermission.EMAIL_REVIEWERS); |
| } catch (AuthException | PermissionBackendException e) { |
| emailOnlyAuthors = true; |
| } |
| } |
| |
| public void setPatchSet(PatchSet ps) { |
| patchSet = ps; |
| } |
| |
| public void setPatchSet(PatchSet ps, PatchSetInfo psi) { |
| patchSet = ps; |
| patchSetInfo = psi; |
| } |
| |
| public void setChangeMessage(String cm, Instant t) { |
| changeMessage = cm; |
| timestamp = t; |
| } |
| |
| /** Format the message body by calling {@link #appendText(String)}. */ |
| @Override |
| protected void format() throws EmailException { |
| if (useHtml()) { |
| appendHtml(soyHtmlTemplate("ChangeHeaderHtml")); |
| } |
| appendText(textTemplate("ChangeHeader")); |
| formatChange(); |
| appendText(textTemplate("ChangeFooter")); |
| if (useHtml()) { |
| appendHtml(soyHtmlTemplate("ChangeFooterHtml")); |
| } |
| formatFooter(); |
| } |
| |
| /** Format the message body by calling {@link #appendText(String)}. */ |
| protected abstract void formatChange() throws EmailException; |
| |
| /** |
| * Format the message footer by calling {@link #appendText(String)}. |
| * |
| * @throws EmailException if an error occurred. |
| */ |
| protected void formatFooter() throws EmailException {} |
| |
| /** Setup the message headers and envelope (TO, CC, BCC). */ |
| @Override |
| protected void init() throws EmailException { |
| if (args.projectCache != null) { |
| projectState = args.projectCache.get(change.getProject()).orElse(null); |
| } else { |
| projectState = null; |
| } |
| |
| if (patchSet == null) { |
| try { |
| patchSet = changeData.currentPatchSet(); |
| } catch (StorageException err) { |
| patchSet = null; |
| } |
| } |
| |
| if (patchSet != null) { |
| setHeader(MailHeader.PATCH_SET.fieldName(), patchSet.number() + ""); |
| if (patchSetInfo == null) { |
| try { |
| patchSetInfo = args.patchSetInfoFactory.get(changeData.notes(), patchSet.id()); |
| } catch (PatchSetInfoNotAvailableException | StorageException err) { |
| patchSetInfo = null; |
| } |
| } |
| } |
| authors = getAuthors(); |
| |
| try { |
| stars = changeData.stars(); |
| } catch (StorageException e) { |
| throw new EmailException("Failed to load stars for change " + change.getChangeId(), e); |
| } |
| |
| super.init(); |
| if (timestamp != null) { |
| setHeader(FieldName.DATE, timestamp); |
| } |
| setChangeSubjectHeader(); |
| setHeader(MailHeader.CHANGE_ID.fieldName(), "" + change.getKey().get()); |
| setHeader(MailHeader.CHANGE_NUMBER.fieldName(), "" + change.getChangeId()); |
| setHeader(MailHeader.PROJECT.fieldName(), "" + change.getProject()); |
| setChangeUrlHeader(); |
| setCommitIdHeader(); |
| |
| if (notify.handling().compareTo(NotifyHandling.OWNER_REVIEWERS) >= 0) { |
| try { |
| addByEmail( |
| RecipientType.CC, changeData.reviewersByEmail().byState(ReviewerStateInternal.CC)); |
| addByEmail( |
| RecipientType.CC, |
| changeData.reviewersByEmail().byState(ReviewerStateInternal.REVIEWER)); |
| } catch (StorageException e) { |
| throw new EmailException("Failed to add unregistered CCs " + change.getChangeId(), e); |
| } |
| } |
| } |
| |
| private void setChangeUrlHeader() { |
| final String u = getChangeUrl(); |
| if (u != null) { |
| setHeader(MailHeader.CHANGE_URL.fieldName(), "<" + u + ">"); |
| } |
| } |
| |
| private void setCommitIdHeader() { |
| if (patchSet != null) { |
| setHeader(MailHeader.COMMIT.fieldName(), patchSet.commitId().name()); |
| } |
| } |
| |
| private void setChangeSubjectHeader() { |
| setHeader(FieldName.SUBJECT, textTemplate("ChangeSubject")); |
| } |
| |
| private int getInsertionsCount() { |
| return listModifiedFiles().values().stream() |
| .map(FileDiffOutput::insertions) |
| .reduce(0, Integer::sum); |
| } |
| |
| private int getDeletionsCount() { |
| return listModifiedFiles().values().stream() |
| .map(FileDiffOutput::deletions) |
| .reduce(0, Integer::sum); |
| } |
| |
| /** |
| * Get a link to the change; null if the server doesn't know its own address or if the address is |
| * malformed. The link will contain a usp parameter set to "email" to inform the frontend on |
| * clickthroughs where the link came from. |
| */ |
| @Nullable |
| public String getChangeUrl() { |
| Optional<String> changeUrl = |
| args.urlFormatter.get().getChangeViewUrl(change.getProject(), change.getId()); |
| if (!changeUrl.isPresent()) return null; |
| try { |
| URI uri = new URIBuilder(changeUrl.get()).addParameter("usp", "email").build(); |
| return uri.toString(); |
| } catch (URISyntaxException e) { |
| return null; |
| } |
| } |
| |
| public String getChangeMessageThreadId() { |
| return "<gerrit." |
| + change.getCreatedOn().toEpochMilli() |
| + "." |
| + change.getKey().get() |
| + "@" |
| + getGerritHost() |
| + ">"; |
| } |
| |
| /** Get the text of the "cover letter". */ |
| public String getCoverLetter() { |
| if (changeMessage != null) { |
| return changeMessage.trim(); |
| } |
| return ""; |
| } |
| |
| /** Create the change message and the affected file list. */ |
| public String getChangeDetail() { |
| try { |
| StringBuilder detail = new StringBuilder(); |
| |
| if (patchSetInfo != null) { |
| detail.append(patchSetInfo.getMessage().trim()).append("\n"); |
| } else { |
| detail.append(change.getSubject().trim()).append("\n"); |
| } |
| |
| if (patchSet != null) { |
| detail.append("---\n"); |
| // Sort files by name. |
| TreeMap<String, FileDiffOutput> modifiedFiles = new TreeMap<>(listModifiedFiles()); |
| for (FileDiffOutput fileDiff : modifiedFiles.values()) { |
| if (fileDiff.newPath().isPresent() && Patch.isMagic(fileDiff.newPath().get())) { |
| continue; |
| } |
| detail |
| .append(fileDiff.changeType().getCode()) |
| .append(" ") |
| .append( |
| FilePathAdapter.getNewPath( |
| fileDiff.oldPath(), fileDiff.newPath(), fileDiff.changeType())) |
| .append("\n"); |
| } |
| detail.append( |
| MessageFormat.format( |
| "" // |
| + "{0,choice,0#0 files|1#1 file|1<{0} files} changed, " // |
| + "{1,choice,0#0 insertions|1#1 insertion|1<{1} insertions}(+), " // |
| + "{2,choice,0#0 deletions|1#1 deletion|1<{2} deletions}(-)" // |
| + "\n", |
| modifiedFiles.size() - 1, // |
| getInsertionsCount(), // |
| getDeletionsCount())); |
| detail.append("\n"); |
| } |
| return detail.toString(); |
| } catch (Exception err) { |
| logger.atWarning().withCause(err).log("Cannot format change detail"); |
| return ""; |
| } |
| } |
| |
| /** Get the patch list corresponding to patch set patchSetId of this change. */ |
| protected Map<String, FileDiffOutput> listModifiedFiles(int patchSetId) { |
| try { |
| PatchSet ps; |
| if (patchSetId == patchSet.number()) { |
| ps = patchSet; |
| } else { |
| ps = args.patchSetUtil.get(changeData.notes(), PatchSet.id(change.getId(), patchSetId)); |
| } |
| return args.diffOperations.listModifiedFilesAgainstParent( |
| change.getProject(), ps.commitId(), /* parentNum= */ 0, DiffOptions.DEFAULTS); |
| } catch (StorageException | DiffNotAvailableException e) { |
| logger.atSevere().withCause(e).log("Failed to get modified files"); |
| return new HashMap<>(); |
| } |
| } |
| |
| /** Get the patch list corresponding to this patch set. */ |
| protected Map<String, FileDiffOutput> listModifiedFiles() { |
| if (patchSet != null) { |
| try { |
| return args.diffOperations.listModifiedFilesAgainstParent( |
| change.getProject(), patchSet.commitId(), /* parentNum= */ 0, DiffOptions.DEFAULTS); |
| } catch (DiffNotAvailableException e) { |
| logger.atSevere().withCause(e).log("Failed to get modified files"); |
| } |
| } else { |
| logger.atSevere().log("no patchSet specified"); |
| } |
| return new HashMap<>(); |
| } |
| |
| /** Get the project entity the change is in; null if its been deleted. */ |
| protected ProjectState getProjectState() { |
| return projectState; |
| } |
| |
| /** TO or CC all vested parties (change owner, patch set uploader, author). */ |
| protected void rcptToAuthors(RecipientType rt) { |
| for (Account.Id id : authors) { |
| add(rt, id); |
| } |
| } |
| |
| /** BCC any user who has starred this change. */ |
| protected void bccStarredBy() { |
| if (!NotifyHandling.ALL.equals(notify.handling())) { |
| return; |
| } |
| |
| for (Map.Entry<Account.Id, Collection<String>> e : stars.asMap().entrySet()) { |
| if (e.getValue().contains(StarredChangesUtil.DEFAULT_LABEL)) { |
| super.add(RecipientType.BCC, e.getKey()); |
| } |
| } |
| } |
| |
| @Override |
| protected final Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig) { |
| if (!NotifyHandling.ALL.equals(notify.handling())) { |
| return new Watchers(); |
| } |
| |
| ProjectWatch watch = new ProjectWatch(args, branch.project(), projectState, changeData); |
| return watch.getWatchers(type, includeWatchersFromNotifyConfig); |
| } |
| |
| /** Any user who has published comments on this change. */ |
| protected void ccAllApprovals() { |
| if (!NotifyHandling.ALL.equals(notify.handling()) |
| && !NotifyHandling.OWNER_REVIEWERS.equals(notify.handling())) { |
| return; |
| } |
| |
| try { |
| for (Account.Id id : changeData.reviewers().all()) { |
| add(RecipientType.CC, id); |
| } |
| } catch (StorageException err) { |
| logger.atWarning().withCause(err).log("Cannot CC users that reviewed updated change"); |
| } |
| } |
| |
| /** Users who were added as reviewers to this change. */ |
| protected void ccExistingReviewers() { |
| if (!NotifyHandling.ALL.equals(notify.handling()) |
| && !NotifyHandling.OWNER_REVIEWERS.equals(notify.handling())) { |
| return; |
| } |
| |
| try { |
| for (Account.Id id : changeData.reviewers().byState(ReviewerStateInternal.REVIEWER)) { |
| add(RecipientType.CC, id); |
| } |
| } catch (StorageException err) { |
| logger.atWarning().withCause(err).log("Cannot CC users that commented on updated change"); |
| } |
| } |
| |
| @Override |
| protected void add(RecipientType rt, Account.Id to) { |
| addRecipient(rt, to, /* isWatcher= */ false); |
| } |
| |
| /** This bypasses the EmailStrategy.ATTENTION_SET_ONLY strategy when adding the recipient. */ |
| @Override |
| protected void addWatcher(RecipientType rt, Account.Id to) { |
| addRecipient(rt, to, /* isWatcher= */ true); |
| } |
| |
| private void addRecipient(RecipientType rt, Account.Id to, boolean isWatcher) { |
| if (!isWatcher) { |
| Optional<AccountState> accountState = args.accountCache.get(to); |
| if (emailOnlyAttentionSetIfEnabled |
| && accountState.isPresent() |
| && accountState.get().generalPreferences().getEmailStrategy() |
| == EmailStrategy.ATTENTION_SET_ONLY |
| && !currentAttentionSet.contains(to)) { |
| return; |
| } |
| } |
| if (emailOnlyAuthors && !authors.contains(to)) { |
| return; |
| } |
| super.add(rt, to); |
| } |
| |
| @Override |
| protected boolean isVisibleTo(Account.Id to) throws PermissionBackendException { |
| if (!projectState.statePermitsRead()) { |
| return false; |
| } |
| return args.permissionBackend.absentUser(to).change(changeData).test(ChangePermission.READ); |
| } |
| |
| /** Find all users who are authors of any part of this change. */ |
| protected Set<Account.Id> getAuthors() { |
| Set<Account.Id> authors = new HashSet<>(); |
| |
| switch (notify.handling()) { |
| case NONE: |
| break; |
| case ALL: |
| default: |
| if (patchSet != null) { |
| authors.add(patchSet.uploader()); |
| } |
| if (patchSetInfo != null) { |
| if (patchSetInfo.getAuthor().getAccount() != null) { |
| authors.add(patchSetInfo.getAuthor().getAccount()); |
| } |
| if (patchSetInfo.getCommitter().getAccount() != null) { |
| authors.add(patchSetInfo.getCommitter().getAccount()); |
| } |
| } |
| // $FALL-THROUGH$ |
| case OWNER_REVIEWERS: |
| case OWNER: |
| authors.add(change.getOwner()); |
| break; |
| } |
| |
| return authors; |
| } |
| |
| @Override |
| protected void setupSoyContext() { |
| super.setupSoyContext(); |
| |
| soyContext.put("changeId", change.getKey().get()); |
| soyContext.put("coverLetter", getCoverLetter()); |
| soyContext.put("fromName", getNameFor(fromId)); |
| soyContext.put("fromEmail", getNameEmailFor(fromId)); |
| soyContext.put("diffLines", getDiffTemplateData(getUnifiedDiff())); |
| |
| soyContextEmailData.put("unifiedDiff", getUnifiedDiff()); |
| soyContextEmailData.put("changeDetail", getChangeDetail()); |
| soyContextEmailData.put("changeUrl", getChangeUrl()); |
| soyContextEmailData.put("includeDiff", getIncludeDiff()); |
| |
| Map<String, String> changeData = new HashMap<>(); |
| |
| String subject = change.getSubject(); |
| String originalSubject = change.getOriginalSubject(); |
| changeData.put("subject", subject); |
| changeData.put("originalSubject", originalSubject); |
| changeData.put("shortSubject", shortenSubject(subject)); |
| changeData.put("shortOriginalSubject", shortenSubject(originalSubject)); |
| |
| changeData.put("ownerName", getNameFor(change.getOwner())); |
| changeData.put("ownerEmail", getNameEmailFor(change.getOwner())); |
| changeData.put("changeNumber", Integer.toString(change.getChangeId())); |
| changeData.put( |
| "sizeBucket", |
| ChangeSizeBucket.getChangeSizeBucket(getInsertionsCount() + getDeletionsCount())); |
| soyContext.put("change", changeData); |
| |
| Map<String, Object> patchSetData = new HashMap<>(); |
| patchSetData.put("patchSetId", patchSet.number()); |
| patchSetData.put("refName", patchSet.refName()); |
| soyContext.put("patchSet", patchSetData); |
| |
| Map<String, Object> patchSetInfoData = new HashMap<>(); |
| patchSetInfoData.put("authorName", patchSetInfo.getAuthor().getName()); |
| patchSetInfoData.put("authorEmail", patchSetInfo.getAuthor().getEmail()); |
| soyContext.put("patchSetInfo", patchSetInfoData); |
| |
| footers.add(MailHeader.CHANGE_ID.withDelimiter() + change.getKey().get()); |
| footers.add(MailHeader.CHANGE_NUMBER.withDelimiter() + change.getChangeId()); |
| footers.add(MailHeader.PATCH_SET.withDelimiter() + patchSet.number()); |
| footers.add(MailHeader.OWNER.withDelimiter() + getNameEmailFor(change.getOwner())); |
| if (change.getAssignee() != null) { |
| footers.add(MailHeader.ASSIGNEE.withDelimiter() + getNameEmailFor(change.getAssignee())); |
| } |
| for (String reviewer : getEmailsByState(ReviewerStateInternal.REVIEWER)) { |
| footers.add(MailHeader.REVIEWER.withDelimiter() + reviewer); |
| } |
| for (String reviewer : getEmailsByState(ReviewerStateInternal.CC)) { |
| footers.add(MailHeader.CC.withDelimiter() + reviewer); |
| } |
| for (Account.Id attentionUser : currentAttentionSet) { |
| footers.add(MailHeader.ATTENTION.withDelimiter() + getNameEmailFor(attentionUser)); |
| } |
| // Since this would be user visible, only show it if attention set is enabled |
| if (args.settings.isAttentionSetEnabled && !currentAttentionSet.isEmpty()) { |
| // We need names rather than account ids / emails to make it user readable. |
| soyContext.put( |
| "attentionSet", |
| currentAttentionSet.stream().map(this::getNameFor).sorted().collect(toImmutableList())); |
| } |
| } |
| |
| /** |
| * A shortened subject is the subject limited to 72 characters, with an ellipsis if it exceeds |
| * that limit. |
| */ |
| private static String shortenSubject(String subject) { |
| if (subject.length() < 73) { |
| return subject; |
| } |
| return subject.substring(0, 69) + "..."; |
| } |
| |
| private Set<String> getEmailsByState(ReviewerStateInternal state) { |
| Set<String> reviewers = new TreeSet<>(); |
| try { |
| for (Account.Id who : changeData.reviewers().byState(state)) { |
| reviewers.add(getNameEmailFor(who)); |
| } |
| } catch (StorageException e) { |
| logger.atWarning().withCause(e).log("Cannot get change reviewers"); |
| } |
| return reviewers; |
| } |
| |
| private Set<Account.Id> getAttentionSet() { |
| Set<Account.Id> attentionSet = new TreeSet<>(); |
| try { |
| attentionSet = |
| additionsOnly(changeData.attentionSet()).stream() |
| .map(AttentionSetUpdate::account) |
| .collect(Collectors.toSet()); |
| } catch (StorageException e) { |
| logger.atWarning().withCause(e).log("Cannot get change attention set"); |
| } |
| return attentionSet; |
| } |
| |
| public boolean getIncludeDiff() { |
| return args.settings.includeDiff; |
| } |
| |
| private static final int HEAP_EST_SIZE = 32 * 1024; |
| |
| /** Show patch set as unified difference. */ |
| public String getUnifiedDiff() { |
| Map<String, FileDiffOutput> modifiedFiles; |
| modifiedFiles = listModifiedFiles(); |
| if (modifiedFiles.isEmpty()) { |
| // Octopus merges are not well supported for diff output by Gerrit. |
| // Currently these always have a null oldId in the PatchList. |
| return "[Empty change (potentially Octopus merge); cannot be formatted as a diff.]\n"; |
| } |
| |
| int maxSize = args.settings.maximumDiffSize; |
| TemporaryBuffer.Heap buf = new TemporaryBuffer.Heap(Math.min(HEAP_EST_SIZE, maxSize), maxSize); |
| try (DiffFormatter fmt = new DiffFormatter(buf)) { |
| try (Repository git = args.server.openRepository(change.getProject())) { |
| try { |
| ObjectId oldId = modifiedFiles.values().iterator().next().oldCommitId(); |
| ObjectId newId = modifiedFiles.values().iterator().next().newCommitId(); |
| if (oldId.equals(ObjectId.zeroId())) { |
| // DiffOperations returns ObjectId.zeroId if newCommit is a root commit, i.e. has no |
| // parents. |
| oldId = null; |
| } |
| fmt.setRepository(git); |
| fmt.setDetectRenames(true); |
| fmt.format(oldId, newId); |
| return RawParseUtils.decode(buf.toByteArray()); |
| } catch (IOException e) { |
| if (JGitText.get().inMemoryBufferLimitExceeded.equals(e.getMessage())) { |
| return ""; |
| } |
| logger.atSevere().withCause(e).log("Cannot format patch"); |
| return ""; |
| } |
| } catch (IOException e) { |
| logger.atSevere().withCause(e).log("Cannot open repository to format patch"); |
| return ""; |
| } |
| } |
| } |
| |
| /** |
| * Generate a list of maps representing each line of the unified diff. The line maps will have a |
| * 'type' key which maps to one of 'common', 'add' or 'remove' and a 'text' key which maps to the |
| * line's content. |
| * |
| * @param sourceDiff the unified diff that we're converting to the map. |
| * @return map of 'type' to a line's content. |
| */ |
| protected static ImmutableList<ImmutableMap<String, String>> getDiffTemplateData( |
| String sourceDiff) { |
| ImmutableList.Builder<ImmutableMap<String, String>> result = ImmutableList.builder(); |
| Splitter lineSplitter = Splitter.on(System.getProperty("line.separator")); |
| for (String diffLine : lineSplitter.split(sourceDiff)) { |
| ImmutableMap.Builder<String, String> lineData = ImmutableMap.builder(); |
| lineData.put("text", diffLine); |
| |
| // Skip empty lines and lines that look like diff headers. |
| if (diffLine.isEmpty() || diffLine.startsWith("---") || diffLine.startsWith("+++")) { |
| lineData.put("type", "common"); |
| } else { |
| switch (diffLine.charAt(0)) { |
| case '+': |
| lineData.put("type", "add"); |
| break; |
| case '-': |
| lineData.put("type", "remove"); |
| break; |
| default: |
| lineData.put("type", "common"); |
| break; |
| } |
| } |
| result.add(lineData.build()); |
| } |
| return result.build(); |
| } |
| } |
