Files
GitBucket/src/main/scala/app/RepositoryViewerServlet.scala
2013-04-29 04:46:33 +09:00

260 lines
9.1 KiB
Scala

package app
import util.Directory._
import util.Implicits._
import util.{JGitUtil, FileTypeUtil}
import org.scalatra._
import java.io.File
import java.util.Date
import org.eclipse.jgit.api.Git
import org.eclipse.jgit.lib._
import org.apache.commons.io.FileUtils
import org.eclipse.jgit.treewalk._
import org.eclipse.jgit.revwalk.RevCommit
import org.eclipse.jgit.diff.DiffEntry.ChangeType
import org.eclipse.jgit.revwalk.RevWalk
case class RepositoryInfo(owner: String, name: String, url: String, branchList: List[String], tags: List[String])
case class FileInfo(id: ObjectId, isDirectory: Boolean, name: String, time: Date, message: String, committer: String)
case class CommitInfo(id: String, time: Date, committer: String, message: String){
def this(rev: org.eclipse.jgit.revwalk.RevCommit) =
this(rev.getName, rev.getCommitterIdent.getWhen, rev.getCommitterIdent.getName, rev.getFullMessage)
}
case class DiffInfo(changeType: ChangeType, oldPath: String, newPath: String, oldContent: Option[String], newContent: Option[String])
case class ContentInfo(viewType: String, content: Option[String])
/**
* The repository viewer.
*/
class RepositoryViewerServlet extends ServletBase {
/**
* Displays user information.
*/
get("/:owner") {
val owner = params("owner")
html.user(owner, getRepositories(owner).map(JGitUtil.getRepositoryInfo(owner, _, servletContext)))
}
/**
* Displays the file list of the repository root and the default branch.
*/
get("/:owner/:repository") {
val owner = params("owner")
val repository = params("repository")
fileList(owner, repository)
}
/**
* Displays the file list of the repository root and the specified branch.
*/
get("/:owner/:repository/tree/:id") {
val owner = params("owner")
val repository = params("repository")
fileList(owner, repository, params("id"))
}
/**
* Displays the file list of the specified path and branch.
*/
get("/:owner/:repository/tree/:id/*") {
val owner = params("owner")
val repository = params("repository")
fileList(owner, repository, params("id"), multiParams("splat").head)
}
/**
* Displays the commit list of the specified branch.
*/
get("/:owner/:repository/commits/:branch"){
val owner = params("owner")
val repository = params("repository")
val branchName = params("branch")
val page = params.getOrElse("page", "1").toInt
val (logs, hasNext) = JGitUtil.getCommitLog(
Git.open(getRepositoryDir(owner, repository)).getRepository, branchName, page)
html.commits(branchName, JGitUtil.getRepositoryInfo(owner, repository, servletContext),
logs.splitWith{ (commit1, commit2) =>
view.helpers.date(commit1.time) == view.helpers.date(commit2.time)
}, page, hasNext)
}
/**
* Displays the file content of the specified branch or commit.
*/
get("/:owner/:repository/blob/:id/*"){
val owner = params("owner")
val repository = params("repository")
val id = params("id") // branch name or commit id
val raw = params.get("raw").getOrElse("false").toBoolean
val path = multiParams("splat").head.replaceFirst("^tree/.+?/", "")
val repositoryInfo = JGitUtil.getRepositoryInfo(owner, repository, servletContext)
if(repositoryInfo.branchList.contains(id)){
// id is branch name
val dir = getBranchDir(owner, repository, id)
val git = Git.open(dir)
val rev = git.log.addPath(path).call.iterator.next
val file = new File(dir, path)
if(raw){
// Download
contentType = "application/octet-stream"
file
} else {
// Viewer
val viewer = if(FileTypeUtil.isImage(file.getName)) "image" else if(FileTypeUtil.isLarge(file.length)) "large" else "text"
val content = ContentInfo(
viewer, if(viewer == "text") Some(FileUtils.readFileToString(file, "UTF-8")) else None
)
html.blob(id, repositoryInfo, path.split("/").toList, content, new CommitInfo(rev))
}
} else {
// id is commit id
val branch = JGitUtil.getBranchNameFromCommitId(id, repositoryInfo)
val dir = getBranchDir(owner, repository, branch)
val git = Git.open(dir)
val rev = git.log.add(ObjectId.fromString(id)).call.iterator.next
@scala.annotation.tailrec
def getPathObjectId(path: String, walk: TreeWalk): ObjectId = walk.next match {
case true if(walk.getPathString == path) => walk.getObjectId(0)
case true => getPathObjectId(path, walk)
}
val walk = new TreeWalk(git.getRepository)
walk.addTree(rev.getTree)
walk.setRecursive(true)
val objectId = getPathObjectId(path, walk)
if(raw){
// Download
contentType = "application/octet-stream"
JGitUtil.getContent(git, objectId, false)
} else {
// Viewer
val large = FileTypeUtil.isLarge(git.getRepository.getObjectDatabase.open(objectId).getSize)
val viewer = if(FileTypeUtil.isImage(path)) "image" else if(large) "large" else "text"
val content = ContentInfo(viewer, if(viewer == "text") JGitUtil.getContent(git, objectId, false).map(new String(_, "UTF-8")) else None)
html.blob(branch, repositoryInfo, path.split("/").toList, content, new CommitInfo(rev))
}
}
}
/**
* Displays details of the specified commit.
*/
get("/:owner/:repository/commit/:id"){
val owner = params("owner")
val repository = params("repository")
val id = params("id")
val repositoryInfo = JGitUtil.getRepositoryInfo(owner, repository, servletContext)
// get branch by commit id
// TODO this does not work correctly...
val branch = repositoryInfo.branchList.find { branch =>
val git = Git.open(getBranchDir(owner, repository, branch))
git.log.add(ObjectId.fromString(id)).call.iterator.hasNext
}.get
val dir = getBranchDir(owner, repository, branch)
val git = Git.open(dir)
val ite = git.log.add(ObjectId.fromString(id)).call.iterator
val rev = ite.next
val old = ite.next
val diffs = if(old != null){
// get diff between specified commit and its previous commit
val reader = git.getRepository.newObjectReader
val oldTreeIter = new CanonicalTreeParser
oldTreeIter.reset(reader, git.getRepository.resolve(old.name + "^{tree}"))
val newTreeIter = new CanonicalTreeParser
newTreeIter.reset(reader, git.getRepository.resolve(id + "^{tree}"))
import scala.collection.JavaConverters._
git.diff.setNewTree(newTreeIter).setOldTree(oldTreeIter).call.asScala.map { diff =>
DiffInfo(diff.getChangeType, diff.getOldPath, diff.getNewPath,
JGitUtil.getContent(git, diff.getOldId.toObjectId, false).map(new String(_, "UTF-8")),
JGitUtil.getContent(git, diff.getNewId.toObjectId, false).map(new String(_, "UTF-8")))
}
} else {
// initial commit
val walk = new TreeWalk(git.getRepository)
walk.addTree(rev.getTree)
val buffer = new scala.collection.mutable.ListBuffer[DiffInfo]()
while(walk.next){
buffer.append(DiffInfo(ChangeType.ADD, null, walk.getPathString, None,
JGitUtil.getContent(git, walk.getObjectId(0), false).map(new String(_, "UTF-8"))))
}
walk.release
buffer.toList
}
html.commit(branch,
CommitInfo(rev.getName, rev.getCommitterIdent.getWhen, rev.getCommitterIdent.getName, rev.getFullMessage),
repositoryInfo, diffs)
}
/**
* Provides HTML of the file list.
*
* @param owner the repository owner
* @param repository the repository name
* @param rev the branch name or commit id(optional)
* @param path the directory path (optional)
* @return HTML of the file list
*/
private def fileList(owner: String, repository: String, revstr: String = "", path: String = ".") = {
val revision = if(revstr.isEmpty){
Git.open(getRepositoryDir(owner, repository)).getRepository.getBranch
} else {
revstr
}
val git = Git.open(getRepositoryDir(owner, repository))
// get latest commit
val revWalk = new RevWalk(git.getRepository)
val objectId = git.getRepository.resolve(revision)
val revCommit = revWalk.parseCommit(objectId)
val files = JGitUtil.getFileList(owner, repository, revision, path)
// process README.md
val readme = files.find(_.name == "README.md").map { file =>
import org.pegdown._
val git = Git.open(getRepositoryDir(owner, repository))
new PegDownProcessor().markdownToHtml(new String(git.getRepository.open(file.id).getBytes, "UTF-8"))
}
html.files(
// current branch
revision,
// repository
JGitUtil.getRepositoryInfo(owner, repository, servletContext),
// current path
if(path == ".") Nil else path.split("/").toList,
// latest commit
CommitInfo(revCommit.getName, revCommit.getCommitterIdent.getWhen, revCommit.getCommitterIdent.getName, revCommit.getShortMessage),
// file list
files,
// readme
readme
)
}
}