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Code Issues Packages Projects Releases Wiki Activity

(refs #38)Add reverting wiki from history.

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This commit is contained in:
takezoe
2013-10-03 03:42:38 +09:00
parent cf7caf55da
commit 70ca98d6a2
3 changed files with 104 additions and 12 deletions
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53
src/main/scala/service/WikiService.scala
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@@ -4,8 +4,11 @@ import java.io.File
import java.util.Date
import org.eclipse.jgit.api.Git
import org.apache.commons.io.FileUtils
import util.{Directory, JGitUtil, LockUtil}
import util.{StringUtil, Directory, JGitUtil, LockUtil}
import util.ControlUtil._
import org.eclipse.jgit.treewalk.CanonicalTreeParser
import org.eclipse.jgit.diff.DiffFormatter
import org.eclipse.jgit.api.errors.PatchApplyException
object WikiService {
@@ -89,7 +92,53 @@ trait WikiService {
.sortBy(x => x)
}
}
/**
* Reverts specified changes.
*/
def revertWikiPage(owner: String, repository: String, from: String, to: String,
committer: model.Account, pageName: Option[String]): Boolean = {
LockUtil.lock(s"${owner}/${repository}/wiki"){
using(Git.open(Directory.getWikiWorkDir(owner, repository))){ git =>
val reader = git.getRepository.newObjectReader
val oldTreeIter = new CanonicalTreeParser
oldTreeIter.reset(reader, git.getRepository.resolve(from + "^{tree}"))
val newTreeIter = new CanonicalTreeParser
newTreeIter.reset(reader, git.getRepository.resolve(to + "^{tree}"))
import scala.collection.JavaConverters._
val diffs = git.diff.setNewTree(oldTreeIter).setOldTree(newTreeIter).call.asScala.filter { diff =>
pageName match {
case Some(x) => diff.getNewPath == x + ".md"
case None => true
}
}
val patch = using(new java.io.ByteArrayOutputStream()){ out =>
val formatter = new DiffFormatter(out)
formatter.setRepository(git.getRepository)
formatter.format(diffs.asJava)
new String(out.toByteArray, "UTF-8")
}
try {
git.apply.setPatch(new java.io.ByteArrayInputStream(patch.getBytes("UTF-8"))).call
git.add.addFilepattern(".").call
git.commit.setCommitter(committer.userName, committer.mailAddress).setMessage(pageName match {
case Some(x) => s"Revert ${from} ... ${to} on ${x}"
case None => s"Revert ${from} ... ${to}"
}).call
git.push.call
true
} catch {
case ex: PatchApplyException => false
}
}
}
}
/**
* Save the wiki page.
*/