# HG changeset patch
# User Dmitry Neverov <dmitry.neverov@jetbrains.com>
# Date 1303224040 -14400
# Node ID 20817ebd1a05e9cc77f277fa7d05e4557aec8502
# Parent  dbf671db463f87efb3753025c42d01ca8cf9e9b9
Fix TW-16278

diff -r dbf671db463f -r 20817ebd1a05 mercurial-server/src/jetbrains/buildServer/buildTriggers/vcs/mercurial/MercurialVcsSupport.java
--- a/mercurial-server/src/jetbrains/buildServer/buildTriggers/vcs/mercurial/MercurialVcsSupport.java	Tue Apr 19 18:35:37 2011 +0400
+++ b/mercurial-server/src/jetbrains/buildServer/buildTriggers/vcs/mercurial/MercurialVcsSupport.java	Tue Apr 19 18:40:40 2011 +0400
@@ -27,6 +27,7 @@
 import jetbrains.buildServer.util.filters.Filter;
 import jetbrains.buildServer.util.filters.FilterUtil;
 import jetbrains.buildServer.vcs.*;
+import jetbrains.buildServer.vcs.impl.VcsRootImpl;
 import jetbrains.buildServer.vcs.patches.PatchBuilder;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -626,27 +627,28 @@
   }
 
   public String label(@NotNull String label, @NotNull String version, @NotNull VcsRoot root, @NotNull CheckoutRules checkoutRules) throws VcsException {
-    syncClonedRepository(root);
-
-    Settings settings = createSettings(root);
+    File tmpDir = null;
+    try {
+      tmpDir = createLabelingTmpDir();
+      ((VcsRootImpl) root).addProperty(Constants.SERVER_CLONE_PATH_PROP, tmpDir.getAbsolutePath());
 
-    // I do not know why but hg tag does not work correctly if
-    // update command was not invoked for the current repo
-    // in such case if there were no tags before Mercurial attempts to
-    // create new head when tag is pushed to the parent repository
-    UpdateCommand uc = new UpdateCommand(settings);
-    uc.execute();
+      syncClonedRepository(root);
+      Settings settings = createSettings(root);
+      new UpdateCommand(settings).execute();
 
-    String fixedTagname = fixTagName(label);
-    TagCommand tc = new TagCommand(settings);
-    tc.setRevId(new ChangeSet(version).getId());
-    tc.setTag(fixedTagname);
-    tc.execute();
+      String fixedTagname = fixTagName(label);
+      TagCommand tc = new TagCommand(settings);
+      tc.setRevId(new ChangeSet(version).getId());
+      tc.setTag(fixedTagname);
+      tc.execute();
 
-    PushCommand pc = new PushCommand(settings);
-//    pc.setForce(true);
-    pc.execute();
-    return fixedTagname;
+      PushCommand pc = new PushCommand(settings);
+      pc.execute();
+      return fixedTagname;
+    } finally {
+      if (tmpDir != null)
+        FileUtil.delete(tmpDir);
+    }
   }
 
   private String fixTagName(final String label) {
@@ -690,4 +692,13 @@
   public boolean isAgentSideCheckoutAvailable() {
     return true;
   }
+
+
+  private File createLabelingTmpDir() throws VcsException {
+    try {
+      return FileUtil.createTempDirectory("mercurial", "label");
+    } catch (IOException e) {
+      throw new VcsException("Unable to create temporary directory");
+    }
+  }
 }