| commit | author | age | ||
| 746aaf | 1 | /* |
| JM | 2 | * Copyright 2012 gitblit.com. |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package com.gitblit.build; | |
| 17 | ||
| 18 | import java.io.File; | |
| 19 | import java.io.FileInputStream; | |
| 20 | import java.io.IOException; | |
| 21 | import java.io.InputStream; | |
| 22 | import java.text.MessageFormat; | |
| 23 | import java.util.ArrayList; | |
| 24 | import java.util.List; | |
| 25 | import java.util.Set; | |
| 26 | import java.util.TreeSet; | |
| 27 | ||
| 28 | import org.eclipse.jgit.api.errors.ConcurrentRefUpdateException; | |
| 29 | import org.eclipse.jgit.api.errors.JGitInternalException; | |
| 30 | import org.eclipse.jgit.dircache.DirCache; | |
| 31 | import org.eclipse.jgit.dircache.DirCacheBuilder; | |
| 32 | import org.eclipse.jgit.dircache.DirCacheEntry; | |
| 5d9bd7 | 33 | import org.eclipse.jgit.internal.JGitText; |
| 746aaf | 34 | import org.eclipse.jgit.lib.CommitBuilder; |
| JM | 35 | import org.eclipse.jgit.lib.Constants; |
| 36 | import org.eclipse.jgit.lib.FileMode; | |
| 37 | import org.eclipse.jgit.lib.ObjectId; | |
| 38 | import org.eclipse.jgit.lib.ObjectInserter; | |
| 39 | import org.eclipse.jgit.lib.PersonIdent; | |
| 40 | import org.eclipse.jgit.lib.RefUpdate; | |
| 41 | import org.eclipse.jgit.lib.RefUpdate.Result; | |
| 42 | import org.eclipse.jgit.lib.Repository; | |
| 43 | import org.eclipse.jgit.lib.RepositoryCache.FileKey; | |
| 44 | import org.eclipse.jgit.revwalk.RevCommit; | |
| 45 | import org.eclipse.jgit.revwalk.RevWalk; | |
| 46 | import org.eclipse.jgit.storage.file.FileRepository; | |
| 47 | import org.eclipse.jgit.treewalk.CanonicalTreeParser; | |
| 48 | import org.eclipse.jgit.treewalk.TreeWalk; | |
| 49 | import org.eclipse.jgit.util.FS; | |
| 50 | ||
| 51 | import com.beust.jcommander.JCommander; | |
| 52 | import com.beust.jcommander.Parameter; | |
| 53 | import com.beust.jcommander.ParameterException; | |
| 54 | import com.beust.jcommander.Parameters; | |
| 55 | import com.gitblit.models.RefModel; | |
| 56 | import com.gitblit.utils.JGitUtils; | |
| 57 | import com.gitblit.utils.StringUtils; | |
| 58 | ||
| 59 | /** | |
| 60 | * Creates or updates a gh-pages branch with the specified content. | |
| 61 | * | |
| 62 | * @author James Moger | |
| 63 | * | |
| 64 | */ | |
| 65 | public class BuildGhPages { | |
| 66 | ||
| 67 | public static void main(String[] args) { | |
| 68 | Params params = new Params(); | |
| 69 | JCommander jc = new JCommander(params); | |
| 70 | try { | |
| 71 | jc.parse(args); | |
| 72 | } catch (ParameterException t) { | |
| 73 | System.err.println(t.getMessage()); | |
| 74 | jc.usage(); | |
| 75 | } | |
| 76 | ||
| 77 | File source = new File(params.sourceFolder); | |
| 78 | String ghpages = "refs/heads/gh-pages"; | |
| 79 | try { | |
| 80 | File gitDir = FileKey.resolve(new File(params.repositoryFolder), FS.DETECTED); | |
| 81 | Repository repository = new FileRepository(gitDir); | |
| 82 | ||
| 83 | RefModel issuesBranch = JGitUtils.getPagesBranch(repository); | |
| 84 | if (issuesBranch == null) { | |
| 85 | JGitUtils.createOrphanBranch(repository, "gh-pages", null); | |
| 86 | } | |
| 87 | ||
| 88 | System.out.println("Updating gh-pages branch..."); | |
| 89 | ObjectId headId = repository.resolve(ghpages + "^{commit}"); | |
| 90 | ObjectInserter odi = repository.newObjectInserter(); | |
| 91 | try { | |
| 92 | // Create the in-memory index of the new/updated issue. | |
| 93 | DirCache index = createIndex(repository, headId, source, params.obliterate); | |
| 94 | ObjectId indexTreeId = index.writeTree(odi); | |
| 95 | ||
| 96 | // Create a commit object | |
| 97 | PersonIdent author = new PersonIdent("Gitblit", "gitblit@localhost"); | |
| 98 | CommitBuilder commit = new CommitBuilder(); | |
| 99 | commit.setAuthor(author); | |
| 100 | commit.setCommitter(author); | |
| 101 | commit.setEncoding(Constants.CHARACTER_ENCODING); | |
| 102 | commit.setMessage("updated pages"); | |
| 103 | commit.setParentId(headId); | |
| 104 | commit.setTreeId(indexTreeId); | |
| 105 | ||
| 106 | // Insert the commit into the repository | |
| 107 | ObjectId commitId = odi.insert(commit); | |
| 108 | odi.flush(); | |
| 109 | ||
| 110 | RevWalk revWalk = new RevWalk(repository); | |
| 111 | try { | |
| 112 | RevCommit revCommit = revWalk.parseCommit(commitId); | |
| 113 | RefUpdate ru = repository.updateRef(ghpages); | |
| 114 | ru.setNewObjectId(commitId); | |
| 115 | ru.setExpectedOldObjectId(headId); | |
| 116 | ru.setRefLogMessage("commit: " + revCommit.getShortMessage(), false); | |
| 117 | Result rc = ru.forceUpdate(); | |
| 118 | switch (rc) { | |
| 119 | case NEW: | |
| 120 | case FORCED: | |
| 121 | case FAST_FORWARD: | |
| 122 | break; | |
| 123 | case REJECTED: | |
| 124 | case LOCK_FAILURE: | |
| 125 | throw new ConcurrentRefUpdateException(JGitText.get().couldNotLockHEAD, | |
| 126 | ru.getRef(), rc); | |
| 127 | default: | |
| 128 | throw new JGitInternalException(MessageFormat.format( | |
| 129 | JGitText.get().updatingRefFailed, ghpages, commitId.toString(), rc)); | |
| 130 | } | |
| 131 | } finally { | |
| 132 | revWalk.release(); | |
| 133 | } | |
| 134 | } finally { | |
| 135 | odi.release(); | |
| 136 | } | |
| 137 | System.out.println("gh-pages updated."); | |
| 138 | } catch (Throwable t) { | |
| 139 | t.printStackTrace(); | |
| 140 | } | |
| 141 | } | |
| 142 | ||
| 143 | /** | |
| 144 | * Creates an in-memory index of the issue change. | |
| 145 | * | |
| 146 | * @param repo | |
| 147 | * @param headId | |
| 148 | * @param sourceFolder | |
| 149 | * @param obliterate | |
| 150 | * if true the source folder tree is used as the new tree for | |
| 151 | * gh-pages and non-existent files are considered deleted | |
| 152 | * @return an in-memory index | |
| 153 | * @throws IOException | |
| 154 | */ | |
| 155 | private static DirCache createIndex(Repository repo, ObjectId headId, File sourceFolder, | |
| 156 | boolean obliterate) throws IOException { | |
| 157 | ||
| 158 | DirCache inCoreIndex = DirCache.newInCore(); | |
| 159 | DirCacheBuilder dcBuilder = inCoreIndex.builder(); | |
| 160 | ObjectInserter inserter = repo.newObjectInserter(); | |
| 161 | ||
| 162 | try { | |
| 163 | // Add all files to the temporary index | |
| 164 | Set<String> ignorePaths = new TreeSet<String>(); | |
| 165 | List<File> files = listFiles(sourceFolder); | |
| 166 | for (File file : files) { | |
| 167 | // create an index entry for the file | |
| 168 | final DirCacheEntry dcEntry = new DirCacheEntry(StringUtils.getRelativePath( | |
| 169 | sourceFolder.getPath(), file.getPath())); | |
| 170 | dcEntry.setLength(file.length()); | |
| 171 | dcEntry.setLastModified(file.lastModified()); | |
| 172 | dcEntry.setFileMode(FileMode.REGULAR_FILE); | |
| 173 | ||
| 174 | // add this entry to the ignore paths set | |
| 175 | ignorePaths.add(dcEntry.getPathString()); | |
| 176 | ||
| 177 | // insert object | |
| 178 | InputStream inputStream = new FileInputStream(file); | |
| 179 | try { | |
| 180 | dcEntry.setObjectId(inserter.insert(Constants.OBJ_BLOB, file.length(), | |
| 181 | inputStream)); | |
| 182 | } finally { | |
| 183 | inputStream.close(); | |
| 184 | } | |
| 185 | ||
| 186 | // add to temporary in-core index | |
| 187 | dcBuilder.add(dcEntry); | |
| 188 | } | |
| 189 | ||
| 190 | if (!obliterate) { | |
| 191 | // Traverse HEAD to add all other paths | |
| 192 | TreeWalk treeWalk = new TreeWalk(repo); | |
| 193 | int hIdx = -1; | |
| 194 | if (headId != null) | |
| 195 | hIdx = treeWalk.addTree(new RevWalk(repo).parseTree(headId)); | |
| 196 | treeWalk.setRecursive(true); | |
| 197 | ||
| 198 | while (treeWalk.next()) { | |
| 199 | String path = treeWalk.getPathString(); | |
| 200 | CanonicalTreeParser hTree = null; | |
| 201 | if (hIdx != -1) | |
| 202 | hTree = treeWalk.getTree(hIdx, CanonicalTreeParser.class); | |
| 203 | if (!ignorePaths.contains(path)) { | |
| 204 | // add entries from HEAD for all other paths | |
| 205 | if (hTree != null) { | |
| 206 | // create a new DirCacheEntry with data retrieved | |
| 207 | // from | |
| 208 | // HEAD | |
| 209 | final DirCacheEntry dcEntry = new DirCacheEntry(path); | |
| 210 | dcEntry.setObjectId(hTree.getEntryObjectId()); | |
| 211 | dcEntry.setFileMode(hTree.getEntryFileMode()); | |
| 212 | ||
| 213 | // add to temporary in-core index | |
| 214 | dcBuilder.add(dcEntry); | |
| 215 | } | |
| 216 | } | |
| 217 | } | |
| 218 | ||
| 219 | // release the treewalk | |
| 220 | treeWalk.release(); | |
| 221 | } | |
| 222 | ||
| 223 | // finish temporary in-core index used for this commit | |
| 224 | dcBuilder.finish(); | |
| 225 | } finally { | |
| 226 | inserter.release(); | |
| 227 | } | |
| 228 | return inCoreIndex; | |
| 229 | } | |
| 230 | ||
| 231 | private static List<File> listFiles(File folder) { | |
| 232 | List<File> files = new ArrayList<File>(); | |
| 233 | for (File file : folder.listFiles()) { | |
| 234 | if (file.isDirectory()) { | |
| 235 | files.addAll(listFiles(file)); | |
| 236 | } else { | |
| 237 | files.add(file); | |
| 238 | } | |
| 239 | } | |
| 240 | return files; | |
| 241 | } | |
| 242 | ||
| 243 | /** | |
| 244 | * JCommander Parameters class for BuildGhPages. | |
| 245 | */ | |
| 246 | @Parameters(separators = " ") | |
| 247 | private static class Params { | |
| 248 | ||
| 249 | @Parameter(names = { "--sourceFolder" }, description = "Source folder for pages", required = true) | |
| 250 | public String sourceFolder; | |
| 251 | ||
| 252 | @Parameter(names = { "--repository" }, description = "Repository folder", required = true) | |
| 253 | public String repositoryFolder; | |
| 254 | ||
| 255 | @Parameter(names = { "--obliterate" }, description = "Replace gh-pages tree with only the content in your sourcefolder") | |
| 256 | public boolean obliterate; | |
| 257 | ||
| 258 | } | |
| 259 | } | |
