Improve repository creation to not use the working repository.

src/main/scala/app/CreateRepositoryController.scala

@@ -8,7 +8,8 @@ import java.io.File
 import org.eclipse.jgit.api.Git
 import org.apache.commons.io._
 import jp.sf.amateras.scalatra.forms._
-import org.eclipse.jgit.lib.PersonIdent
+import org.eclipse.jgit.lib.{FileMode, Constants, PersonIdent}
+import org.eclipse.jgit.dircache.DirCache
 
 class CreateRepositoryController extends CreateRepositoryControllerBase
   with RepositoryService with AccountService with WikiService with LabelsService with ActivityService
@@ -73,28 +74,26 @@ trait CreateRepositoryControllerBase extends ControllerBase {
         JGitUtil.initRepository(gitdir)
 
         if(form.createReadme){
-          FileUtil.withTmpDir(getInitRepositoryDir(form.owner, form.name)){ tmpdir =>
-            // Clone the repository
-            Git.cloneRepository.setURI(gitdir.toURI.toString).setDirectory(tmpdir).call
+          using(Git.open(gitdir)){ git =>
+            val builder  = DirCache.newInCore.builder()
+            val inserter = git.getRepository.newObjectInserter()
+            val headId   = git.getRepository.resolve(Constants.HEAD + "^{commit}")
+            val content  = if(form.description.nonEmpty){
+              form.name + "\n" +
+              "===============\n" +
+              "\n" +
+              form.description.get
+            } else {
+              form.name + "\n" +
+              "===============\n"
+            }
 
-            // Create README.md
-            FileUtils.writeStringToFile(new File(tmpdir, "README.md"),
-              if(form.description.nonEmpty){
-                form.name + "\n" +
-                  "===============\n" +
-                  "\n" +
-                  form.description.get
-              } else {
-                form.name + "\n" +
-                  "===============\n"
-              }, "UTF-8")
+            builder.add(JGitUtil.createDirCacheEntry("README.md", FileMode.REGULAR_FILE,
+              inserter.insert(Constants.OBJ_BLOB, content.getBytes("UTF-8"))))
+            builder.finish()
 
-            val git = Git.open(tmpdir)
-            git.add.addFilepattern("README.md").call
-            git.commit
-              .setCommitter(new PersonIdent(loginAccount.fullName, loginAccount.mailAddress))
-              .setMessage("Initial commit").call
-            git.push.call
+            JGitUtil.createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter),
+              loginAccount.fullName, loginAccount.mailAddress, "Initial commit")
           }
         }
 

src/main/scala/service/WikiService.scala

@@ -176,18 +176,18 @@ trait WikiService {
                   val path = treeWalk.getPathString
                   val tree = treeWalk.getTree(index, classOf[CanonicalTreeParser])
                   if(revertInfo.find(x => x.filePath == path).isEmpty){
-                    builder.add(createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
+                    builder.add(JGitUtil.createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
                   }
                 }
               }
             }
 
             revertInfo.filter(_.operation == "ADD").foreach { x =>
-              builder.add(createDirCacheEntry(x.filePath, FileMode.REGULAR_FILE, inserter.insert(Constants.OBJ_BLOB, x.source.getBytes("UTF-8"))))
+              builder.add(JGitUtil.createDirCacheEntry(x.filePath, FileMode.REGULAR_FILE, inserter.insert(Constants.OBJ_BLOB, x.source.getBytes("UTF-8"))))
             }
             builder.finish()
 
-            createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer.fullName, committer.mailAddress,
+            JGitUtil.createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer.fullName, committer.mailAddress,
               pageName match {
                 case Some(x) => s"Revert ${from} ... ${to} on ${x}"
                 case None    => s"Revert ${from} ... ${to}"
@@ -218,29 +218,31 @@ trait WikiService {
         var updated  = false
         var removed  = false
 
-        using(new RevWalk(git.getRepository)){ revWalk =>
-          using(new TreeWalk(git.getRepository)){ treeWalk =>
-            val index = treeWalk.addTree(revWalk.parseTree(headId))
-            treeWalk.setRecursive(true)
-            while(treeWalk.next){
-              val path = treeWalk.getPathString
-              val tree = treeWalk.getTree(index, classOf[CanonicalTreeParser])
-              if(path == currentPageName + ".md" && currentPageName != newPageName){
-                removed = true
-              } else if(path != newPageName + ".md"){
-                builder.add(createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
-              } else {
-                created = false
-                updated = JGitUtil.getContent(git, tree.getEntryObjectId, true).map(new String(_, "UTF-8") != content).getOrElse(false)
+        if(headId != null){
+          using(new RevWalk(git.getRepository)){ revWalk =>
+            using(new TreeWalk(git.getRepository)){ treeWalk =>
+              val index = treeWalk.addTree(revWalk.parseTree(headId))
+              treeWalk.setRecursive(true)
+              while(treeWalk.next){
+                val path = treeWalk.getPathString
+                val tree = treeWalk.getTree(index, classOf[CanonicalTreeParser])
+                if(path == currentPageName + ".md" && currentPageName != newPageName){
+                  removed = true
+                } else if(path != newPageName + ".md"){
+                  builder.add(JGitUtil.createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
+                } else {
+                  created = false
+                  updated = JGitUtil.getContent(git, tree.getEntryObjectId, true).map(new String(_, "UTF-8") != content).getOrElse(false)
+                }
               }
             }
           }
         }
 
         optionIf(created || updated || removed){
-          builder.add(createDirCacheEntry(newPageName + ".md", FileMode.REGULAR_FILE, inserter.insert(Constants.OBJ_BLOB, content.getBytes("UTF-8"))))
+          builder.add(JGitUtil.createDirCacheEntry(newPageName + ".md", FileMode.REGULAR_FILE, inserter.insert(Constants.OBJ_BLOB, content.getBytes("UTF-8"))))
           builder.finish()
-          val newHeadId = createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer.fullName, committer.mailAddress,
+          val newHeadId = JGitUtil.createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer.fullName, committer.mailAddress,
             if(message.trim.length == 0) {
               if(removed){
                 s"Rename ${currentPageName} to ${newPageName}"
@@ -279,7 +281,7 @@ trait WikiService {
                 val path = treeWalk.getPathString
                 val tree = treeWalk.getTree(index, classOf[CanonicalTreeParser])
                 if(path != pageName + ".md"){
-                  builder.add(createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
+                  builder.add(JGitUtil.createDirCacheEntry(path, tree.getEntryFileMode, tree.getEntryObjectId))
                 } else {
                   removed = true
                 }
@@ -288,39 +290,11 @@ trait WikiService {
 
             if(removed){
               builder.finish()
-              createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer, mailAddress, message)
+              JGitUtil.createNewCommit(git, inserter, headId, builder.getDirCache.writeTree(inserter), committer, mailAddress, message)
             }
           }
         }
       }
   }
 
-  // This method should be moved to JGitUtil?
-  private def createDirCacheEntry(path: String, mode: FileMode, objectId: ObjectId): DirCacheEntry = {
-    val entry = new DirCacheEntry(path)
-    entry.setFileMode(mode)
-    entry.setObjectId(objectId)
-    entry
-  }
-
-  // This method should be moved to JGitUtil?
-  private def createNewCommit(git: Git, inserter: ObjectInserter, headId: AnyObjectId, treeId: AnyObjectId,
-                              fullName: String, mailAddress: String, message: String): String = {
-    val newCommit = new CommitBuilder()
-    newCommit.setCommitter(new PersonIdent(fullName, mailAddress))
-    newCommit.setAuthor(new PersonIdent(fullName, mailAddress))
-    newCommit.setMessage(message)
-    newCommit.setParentIds(List(headId).asJava)
-    newCommit.setTreeId(treeId)
-
-    val newHeadId = inserter.insert(newCommit)
-    inserter.flush()
-
-    val refUpdate = git.getRepository.updateRef(Constants.HEAD)
-    refUpdate.setNewObjectId(newHeadId)
-    refUpdate.update()
-
-    newHeadId.getName
-  }
-
 }

src/main/scala/util/Directory.scala

@@ -56,15 +56,6 @@ object Directory {
   def getDownloadWorkDir(owner: String, repository: String, sessionId: String): File = 
     new File(getTemporaryDir(owner, repository), s"download/${sessionId}")
   
-  /**
-   * Temporary directory which is used in the repository creation.
-   *
-   * GitBucket generates initial repository contents in this directory and push them.
-   * This directory is removed after the repository creation.
-   */
-  def getInitRepositoryDir(owner: String, repository: String): File =
-    new File(getTemporaryDir(owner, repository), "init")
-  
   /**
    * Substance directory of the wiki repository.
    */

src/main/scala/util/JGitUtil.scala

@@ -15,6 +15,7 @@ import org.eclipse.jgit.errors.MissingObjectException
 import java.util.Date
 import org.eclipse.jgit.api.errors.NoHeadException
 import service.RepositoryService
+import org.eclipse.jgit.dircache.DirCacheEntry
 
 /**
  * Provides complex JGit operations.
@@ -464,4 +465,32 @@ object JGitUtil {
     }.find(_._1 != null)
   }
 
+  def createDirCacheEntry(path: String, mode: FileMode, objectId: ObjectId): DirCacheEntry = {
+    val entry = new DirCacheEntry(path)
+    entry.setFileMode(mode)
+    entry.setObjectId(objectId)
+    entry
+  }
+
+  def createNewCommit(git: Git, inserter: ObjectInserter, headId: AnyObjectId, treeId: AnyObjectId,
+                              fullName: String, mailAddress: String, message: String): String = {
+    val newCommit = new CommitBuilder()
+    newCommit.setCommitter(new PersonIdent(fullName, mailAddress))
+    newCommit.setAuthor(new PersonIdent(fullName, mailAddress))
+    newCommit.setMessage(message)
+    if(headId != null){
+      newCommit.setParentIds(List(headId).asJava)
+    }
+    newCommit.setTreeId(treeId)
+
+    val newHeadId = inserter.insert(newCommit)
+    inserter.flush()
+
+    val refUpdate = git.getRepository.updateRef(Constants.HEAD)
+    refUpdate.setNewObjectId(newHeadId)
+    refUpdate.update()
+
+    newHeadId.getName
+  }
+
 }