/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.wicket.panels;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.apache.wicket.markup.html.basic.Label;
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import org.apache.wicket.markup.html.link.BookmarkablePageLink;
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import org.apache.wicket.markup.html.panel.Fragment;
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import org.apache.wicket.markup.repeater.Item;
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import org.apache.wicket.markup.repeater.data.DataView;
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import org.apache.wicket.markup.repeater.data.ListDataProvider;
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import org.apache.wicket.model.StringResourceModel;
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import org.eclipse.jgit.diff.DiffEntry.ChangeType;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.revwalk.RevCommit;
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import org.eclipse.jgit.treewalk.TreeWalk;
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import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
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import com.gitblit.Constants;
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import com.gitblit.GitBlit;
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import com.gitblit.Keys;
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import com.gitblit.models.PathModel;
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import com.gitblit.models.PathModel.PathChangeModel;
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import com.gitblit.models.RefModel;
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import com.gitblit.models.SubmoduleModel;
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import com.gitblit.utils.JGitUtils;
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import com.gitblit.utils.StringUtils;
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import com.gitblit.wicket.WicketUtils;
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import com.gitblit.wicket.pages.BlobDiffPage;
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import com.gitblit.wicket.pages.BlobPage;
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import com.gitblit.wicket.pages.CommitDiffPage;
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import com.gitblit.wicket.pages.CommitPage;
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import com.gitblit.wicket.pages.GitSearchPage;
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import com.gitblit.wicket.pages.HistoryPage;
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import com.gitblit.wicket.pages.TreePage;
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public class HistoryPanel extends BasePanel {
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private static final long serialVersionUID = 1L;
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private boolean hasMore;
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public HistoryPanel(String wicketId, final String repositoryName, final String objectId,
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final String path, Repository r, int limit, int pageOffset, boolean showRemoteRefs) {
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super(wicketId);
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boolean pageResults = limit <= 0;
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int itemsPerPage = GitBlit.getInteger(Keys.web.itemsPerPage, 50);
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if (itemsPerPage <= 1) {
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itemsPerPage = 50;
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}
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RevCommit commit = JGitUtils.getCommit(r, objectId);
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List<PathChangeModel> paths = JGitUtils.getFilesInCommit(r, commit);
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Map<String, SubmoduleModel> submodules = new HashMap<String, SubmoduleModel>();
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for (SubmoduleModel model : JGitUtils.getSubmodules(r, commit.getTree())) {
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submodules.put(model.path, model);
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}
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PathModel matchingPath = null;
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for (PathModel p : paths) {
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if (p.path.equals(path)) {
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matchingPath = p;
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break;
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}
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}
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if (matchingPath == null) {
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// path not in commit
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// manually locate path in tree
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TreeWalk tw = new TreeWalk(r);
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tw.reset();
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tw.setRecursive(true);
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try {
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tw.addTree(commit.getTree());
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tw.setFilter(PathFilterGroup.createFromStrings(Collections.singleton(path)));
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while (tw.next()) {
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if (tw.getPathString().equals(path)) {
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matchingPath = new PathChangeModel(tw.getPathString(), tw.getPathString(), 0, tw
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.getRawMode(0), tw.getObjectId(0).getName(), commit.getId().getName(),
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ChangeType.MODIFY);
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}
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}
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} catch (Exception e) {
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} finally {
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tw.release();
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}
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}
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final boolean isTree = matchingPath == null ? true : matchingPath.isTree();
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final boolean isSubmodule = matchingPath == null ? false : matchingPath.isSubmodule();
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// submodule
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final String submodulePath;
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final boolean hasSubmodule;
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if (isSubmodule) {
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SubmoduleModel submodule = getSubmodule(submodules, repositoryName, matchingPath == null ? null : matchingPath.path);
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submodulePath = submodule.gitblitPath;
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hasSubmodule = submodule.hasSubmodule;
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} else {
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submodulePath = "";
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hasSubmodule = false;
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}
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final Map<ObjectId, List<RefModel>> allRefs = JGitUtils.getAllRefs(r, showRemoteRefs);
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List<RevCommit> commits;
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if (pageResults) {
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// Paging result set
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commits = JGitUtils.getRevLog(r, objectId, path, pageOffset * itemsPerPage,
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itemsPerPage);
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} else {
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// Fixed size result set
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commits = JGitUtils.getRevLog(r, objectId, path, 0, limit);
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}
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// inaccurate way to determine if there are more commits.
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// works unless commits.size() represents the exact end.
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hasMore = commits.size() >= itemsPerPage;
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add(new CommitHeaderPanel("commitHeader", repositoryName, commit));
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// breadcrumbs
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add(new PathBreadcrumbsPanel("breadcrumbs", repositoryName, path, objectId));
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final int hashLen = GitBlit.getInteger(Keys.web.shortCommitIdLength, 6);
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ListDataProvider<RevCommit> dp = new ListDataProvider<RevCommit>(commits);
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DataView<RevCommit> logView = new DataView<RevCommit>("commit", dp) {
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private static final long serialVersionUID = 1L;
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int counter;
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@Override
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public void populateItem(final Item<RevCommit> item) {
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final RevCommit entry = item.getModelObject();
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final Date date = JGitUtils.getCommitDate(entry);
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item.add(WicketUtils.createDateLabel("commitDate", date, getTimeZone(), getTimeUtils()));
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// author search link
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String author = entry.getAuthorIdent().getName();
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LinkPanel authorLink = new LinkPanel("commitAuthor", "list", author,
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GitSearchPage.class,
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WicketUtils.newSearchParameter(repositoryName, objectId,
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author, Constants.SearchType.AUTHOR));
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setPersonSearchTooltip(authorLink, author, Constants.SearchType.AUTHOR);
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item.add(authorLink);
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// merge icon
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if (entry.getParentCount() > 1) {
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item.add(WicketUtils.newImage("commitIcon", "commit_merge_16x16.png"));
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} else {
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item.add(WicketUtils.newBlankImage("commitIcon"));
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}
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String shortMessage = entry.getShortMessage();
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String trimmedMessage = shortMessage;
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if (allRefs.containsKey(entry.getId())) {
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trimmedMessage = StringUtils.trimString(shortMessage, Constants.LEN_SHORTLOG_REFS);
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} else {
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trimmedMessage = StringUtils.trimString(shortMessage, Constants.LEN_SHORTLOG);
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}
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LinkPanel shortlog = new LinkPanel("commitShortMessage", "list subject",
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trimmedMessage, CommitPage.class, WicketUtils.newObjectParameter(
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repositoryName, entry.getName()));
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if (!shortMessage.equals(trimmedMessage)) {
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WicketUtils.setHtmlTooltip(shortlog, shortMessage);
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}
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item.add(shortlog);
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item.add(new RefsPanel("commitRefs", repositoryName, entry, allRefs));
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if (isTree) {
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// tree
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item.add(new Label("hashLabel", getString("gb.tree") + "@"));
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LinkPanel commitHash = new LinkPanel("hashLink", null, entry.getName().substring(0, hashLen),
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TreePage.class, WicketUtils.newObjectParameter(
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repositoryName, entry.getName()));
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WicketUtils.setCssClass(commitHash, "shortsha1");
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WicketUtils.setHtmlTooltip(commitHash, entry.getName());
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item.add(commitHash);
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Fragment links = new Fragment("historyLinks", "treeLinks", this);
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links.add(new BookmarkablePageLink<Void>("commitdiff", CommitDiffPage.class,
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WicketUtils.newObjectParameter(repositoryName, entry.getName())));
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item.add(links);
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} else if (isSubmodule) {
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// submodule
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Repository repository = GitBlit.self().getRepository(repositoryName);
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String submoduleId = JGitUtils.getSubmoduleCommitId(repository, path, entry);
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repository.close();
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if (StringUtils.isEmpty(submoduleId)) {
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// not a submodule at this commit, just a matching path
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item.add(new Label("hashLabel").setVisible(false));
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item.add(new Label("hashLink").setVisible(false));
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} else {
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// really a submodule
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item.add(new Label("hashLabel", submodulePath + "@"));
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LinkPanel commitHash = new LinkPanel("hashLink", null, submoduleId.substring(0, hashLen),
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TreePage.class, WicketUtils.newObjectParameter(
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submodulePath, submoduleId));
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WicketUtils.setCssClass(commitHash, "shortsha1");
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WicketUtils.setHtmlTooltip(commitHash, submoduleId);
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item.add(commitHash.setEnabled(hasSubmodule));
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}
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Fragment links = new Fragment("historyLinks", "treeLinks", this);
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links.add(new BookmarkablePageLink<Void>("commitdiff", CommitDiffPage.class,
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WicketUtils.newObjectParameter(repositoryName, entry.getName())));
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item.add(links);
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} else {
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// commit
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item.add(new Label("hashLabel", getString("gb.blob") + "@"));
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LinkPanel commitHash = new LinkPanel("hashLink", null, entry.getName().substring(0, hashLen),
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BlobPage.class, WicketUtils.newPathParameter(
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repositoryName, entry.getName(), path));
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WicketUtils.setCssClass(commitHash, "sha1");
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WicketUtils.setHtmlTooltip(commitHash, entry.getName());
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item.add(commitHash);
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Fragment links = new Fragment("historyLinks", "blobLinks", this);
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links.add(new BookmarkablePageLink<Void>("commitdiff", CommitDiffPage.class,
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WicketUtils.newObjectParameter(repositoryName, entry.getName())));
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links.add(new BookmarkablePageLink<Void>("difftocurrent", BlobDiffPage.class,
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WicketUtils.newBlobDiffParameter(repositoryName, entry.getName(),
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objectId, path)).setEnabled(counter > 0));
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item.add(links);
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}
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WicketUtils.setAlternatingBackground(item, counter);
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counter++;
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}
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};
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add(logView);
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// determine to show pager, more, or neither
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if (limit <= 0) {
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// no display limit
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add(new Label("moreHistory", "").setVisible(false));
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} else {
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if (pageResults) {
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// paging
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add(new Label("moreHistory", "").setVisible(false));
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} else {
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// more
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if (commits.size() == limit) {
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// show more
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add(new LinkPanel("moreHistory", "link", new StringResourceModel(
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"gb.moreHistory", this, null), HistoryPage.class,
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WicketUtils.newPathParameter(repositoryName, objectId, path)));
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} else {
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// no more
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add(new Label("moreHistory", "").setVisible(false));
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}
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}
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}
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}
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public boolean hasMore() {
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return hasMore;
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}
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protected SubmoduleModel getSubmodule(Map<String, SubmoduleModel> submodules, String repositoryName, String path) {
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SubmoduleModel model = submodules.get(path);
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if (model == null) {
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// undefined submodule?!
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model = new SubmoduleModel(path.substring(path.lastIndexOf('/') + 1), path, path);
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model.hasSubmodule = false;
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model.gitblitPath = model.name;
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return model;
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} else {
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// extract the repository name from the clone url
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List<String> patterns = GitBlit.getStrings(Keys.git.submoduleUrlPatterns);
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String submoduleName = StringUtils.extractRepositoryPath(model.url, patterns.toArray(new String[0]));
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// determine the current path for constructing paths relative
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// to the current repository
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String currentPath = "";
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if (repositoryName.indexOf('/') > -1) {
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currentPath = repositoryName.substring(0, repositoryName.lastIndexOf('/') + 1);
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}
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// try to locate the submodule repository
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// prefer bare to non-bare names
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List<String> candidates = new ArrayList<String>();
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// relative
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candidates.add(currentPath + StringUtils.stripDotGit(submoduleName));
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candidates.add(candidates.get(candidates.size() - 1) + ".git");
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// relative, no subfolder
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if (submoduleName.lastIndexOf('/') > -1) {
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String name = submoduleName.substring(submoduleName.lastIndexOf('/') + 1);
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candidates.add(currentPath + StringUtils.stripDotGit(name));
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candidates.add(candidates.get(candidates.size() - 1) + ".git");
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}
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// absolute
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candidates.add(StringUtils.stripDotGit(submoduleName));
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candidates.add(candidates.get(candidates.size() - 1) + ".git");
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// absolute, no subfolder
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if (submoduleName.lastIndexOf('/') > -1) {
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String name = submoduleName.substring(submoduleName.lastIndexOf('/') + 1);
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candidates.add(StringUtils.stripDotGit(name));
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candidates.add(candidates.get(candidates.size() - 1) + ".git");
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}
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// create a unique, ordered set of candidate paths
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Set<String> paths = new LinkedHashSet<String>(candidates);
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for (String candidate : paths) {
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if (GitBlit.self().hasRepository(candidate)) {
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model.hasSubmodule = true;
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model.gitblitPath = candidate;
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return model;
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}
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}
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// we do not have a copy of the submodule, but we need a path
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model.gitblitPath = candidates.get(0);
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return model;
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}
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}
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}
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