public IEnumerable<IChangeReport> GetChangeRecords(Revision revision)
{
var changes = new List<IChangeReport>();
revision.EnsureParentRevisionInfo();
if (!revision.HasAtLeastOneParent)
{
//describe the contents of the initial checkin
foreach (var fileInRevision in Repository.GetFilesInRevision(revision))
{
CollectChangesInFile(fileInRevision, null, changes);
}
}
else
{
IEnumerable<RevisionNumber> parentRevs = revision.GetLocalNumbersOfParents();
foreach (RevisionNumber parentRev in parentRevs)
{
foreach (var fileInRevision in Repository.GetFilesInRevision(revision)
.Where(fileInRevision => parentRevs.Count() == 1
|| fileInRevision.FullPath.ToLowerInvariant().EndsWith(".chorusnotes")))
{
CollectChangesInFile(fileInRevision, parentRev.LocalRevisionNumber, changes);
}
}
if (parentRevs.Count() > 1)
changes = new List<IChangeReport>(changes.Distinct());
}
return changes;
}
public void Synchronizer_DoesNotReportOldChangeOnOtherBranch()
{
string savedSettings = "";
var rev1 = new Revision(null, "default", "Fred", "1234", "hash1234", "change something");
// The first revision we see on another branch doesn't produce a warning...it might be something old everyone has upgraded from.
var revs = new[] { rev1 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "7.2.1", ref savedSettings), Is.Null);
//Assert.That(savedSettings, Is.EqualTo("default:1234")); // Don't really care what is here as long as it works
var rev2 = new Revision(null, "default", "Fred", "1234", "hash1234", "change something else");
revs = new[] { rev2 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "7.2.1", ref savedSettings), Is.Null);
}
public bool IsDirectDescendantOf(Revision revision)
{
EnsureParentRevisionInfo();
//TODO: this is only checking direct descendant
return(Parents.Any(p => p.Hash == revision.Number.Hash));
}
private static string RevisionId(Revision revision)
{
return revision.Number.LocalRevisionNumber;
}
private void HistoryPageRevisionSelectionChanged(object sender, RevisionEventArgs e)
{
_currentRevision = e.Revision;
}
/// <summary>
/// There may be more, but for now: take care of the case where one guy has a file not
/// modified (and not checked in), and the other guy is going to hammer it (with a remove
/// or change).
/// </summary>
private void RemoveMergeObstacles(Revision rev1, Revision rev2)
{
/* this has proved a bit hard to get right.
* when a file is in a recently brought in changeset, and also local (but untracked), status --rev ___ lists the file twice:
*
* >hg status --rev 14
* R test.txt
* ? test.txt
*
*/
//todo: push down to hgrepository
var files = Repository.GetFilesInRevisionFromQuery(rev1 /*this param is bogus*/, "status -ru --rev " + rev2.Number.LocalRevisionNumber);
foreach (var file in files)
{
if (file.ActionThatHappened == FileInRevision.Action.Deleted)// listed with 'R'
{
//is it also listed as unknown?
if (files.Any(f => f.FullPath == file.FullPath && f.ActionThatHappened == FileInRevision.Action.Unknown))
{
try
{
var newPath = file.FullPath + "-" + Path.GetRandomFileName() + ".ChorusRescuedFile";
_progress.WriteWarning(
"Renamed {0} to {1} because it is not part of {2}'s repository but it is part of {3}'s, and this would otherwise prevent a merge.",
file.FullPath, Path.GetFileName(newPath), rev1.UserId, rev2.UserId);
if (!File.Exists(file.FullPath))
{
_progress.WriteError("The file marked for rescuing didn't actually exist. Please report this bug in Chorus.");
continue;
}
File.Move(file.FullPath, newPath);
}
catch (Exception error)
{
_progress.WriteError("Could not move the file. Error follows.");
_progress.WriteException(error);
throw;
}
}
}
}
}
/// <returns>false if nothing needed to be merged, true if the merge was done. Throws exception if there is an error.</returns>
private bool MergeTwoChangeSets(Revision head, Revision theirHead)
{
string chorusMergeFilePath = Path.Combine(ExecutionEnvironment.DirectoryOfExecutingAssembly, "ChorusMerge.exe");
#if MONO
// The replace is only useful for use with the MonoDevelop environment whcih doesn't honor $(Configuration) in the csproj files.
// When this is exported as an environment var it needs escaping to prevent the shell from replacing it with an empty string.
// When MonoDevelop is fixed this can be removed.
chorusMergeFilePath = chorusMergeFilePath.Replace("$(Configuration)", "\\$(Configuration)");
#endif
using (new ShortTermEnvironmentalVariable("HGMERGE", '"' + chorusMergeFilePath + '"'))
{
// Theory has it that is a tossup on who ought to win, unless there is some more principled way to decide.
// If 'they' end up being the right answer, or if it ends up being more exotic,
// then be sure to change the alpha and beta info in the MergeSituation class.
//using (new ShortTermEnvironmentalVariable(MergeOrder.kConflictHandlingModeEnvVarName, MergeOrder.ConflictHandlingModeChoices.TheyWin.ToString()))
// Go with 'WeWin', since that is the default and that is how the alpha and beta data of MergeSituation is set, right before this method is called.
using (new ShortTermEnvironmentalVariable(MergeOrder.kConflictHandlingModeEnvVarName, MergeOrder.ConflictHandlingModeChoices.WeWin.ToString()))
{
var didMerge = Repository.Merge(_localRepositoryPath, theirHead.Number.LocalRevisionNumber);
FailureSimulator.IfTestRequestsItThrowNow("SychronizerAdjunct");
return didMerge;
}
}
}
/// <summary>
/// This method handles post merge tasks including the commit after the merge
/// </summary>
/// <param name="head"></param>
/// <param name="peopleWeMergedWith"></param>
private void DoPostMergeCommit(Revision head)
{
//that merge may have generated notes files where they didn't exist before,
//and we want these merged
//version + updated/created notes files to go right back into the repository
// args.Append(" -X " + SurroundWithQuotes(Path.Combine(_pathToRepository, "**.ChorusRescuedFile")));
AppendAnyNewNotes(_localRepositoryPath);
_sychronizerAdjunct.PrepareForPostMergeCommit(_progress);
AddAndCommitFiles(GetMergeCommitSummary(head.UserId, Repository));
}
private void AddRow(Revision rev)
{
var dateString = rev.DateString;
DateTime when;
//TODO: this is all a guess and a mess
//I haven't figured out how/why hg uses this strange date format,
//nor if it is going to do it on all machines, or will someday
//change.
if (DateTime.TryParseExact(dateString, "ddd MMM dd HH':'mm':'ss yyyy zzz",
null, DateTimeStyles.AssumeUniversal, out when))
{
when = when.ToLocalTime();
dateString = when.ToShortDateString()+" "+when.ToShortTimeString();
}
object image;
if (rev.Summary.ToLower().Contains("conflict"))
image = HistoryRowIcons.Warning;
else if (rev.Parents.Count > 1)
image = HistoryRowIcons.Merge;
else
{
var colonLocation = rev.Summary.IndexOf(':');
string appName = rev.Summary;
if (colonLocation > 0)
{
appName = appName.Substring(0, colonLocation);
}
var bracketLocation = appName.IndexOf(']');
if (bracketLocation > 0)
{
appName = appName.Substring(0, bracketLocation);
}
appName = appName.Trim(new char[] { '[', '+' }); // there was a bug in chorus that introduced the +
//temp hack... the app has now been fixed to not include this
appName = appName.Replace("0.5", "");
switch (appName.Trim())
{
case "WeSay":
image = HistoryRowIcons.WeSay;
break;
case "WeSay Configuration Tool":
image = HistoryRowIcons.WeSayConfiguration;
break;
case "FieldWorks":
image = HistoryRowIcons.FieldWorks;
break;
case "Bloom":
image = HistoryRowIcons.Bloom16x16;
break;
default:
image = HistoryRowIcons.GenericCheckin;
break;
}
}
int nIndex = _historyGrid.Rows.Add(new [] { image, false, false, dateString, rev.UserId, GetDescriptionForListView(rev) });
var row = _historyGrid.Rows[nIndex];
row.Tag = rev;
row.Cells[0].ToolTipText = rev.Number.LocalRevisionNumber + ": " + rev.Number.Hash;
var idx = row.Cells.Count - _extraColumns.Count;
foreach (var extraColumn in _extraColumns)
{
row.Cells[idx++].Value = extraColumn.StringSupplier.Invoke(rev);
}
}
private string GetDescriptionForListView(Revision rev)
{
var s = rev.Summary.Substring(rev.Summary.IndexOf(']')+1).Trim();
if(s=="auto")
return string.Empty;
return s;
}
public void SelectedRevisionChanged(Revision descriptor)
{
if (_revisionSelectedEvent!=null)
_revisionSelectedEvent.Raise(descriptor);
}
public ServerRevision(string id, Revision rev)
{
RemoteId = id;
Revision = rev;
}
public bool IsMatchingStub(Revision stub)
{
return stub.Summary.Contains(string.Format("({0} partial from", UserId));
}
public bool IsDirectDescendantOf(Revision revision)
{
EnsureParentRevisionInfo();
//TODO: this is only checking direct descendant
return Parents.Any(p => p.Hash == revision.Number.Hash);
}
/// <returns>false if nothing needed to be merged, true if the merge was done. Throws exception if there is an error.</returns>
private bool MergeTwoChangeSets(Revision head, Revision theirHead)
{
// Theory has it that is a tossup on who ought to win, unless there is some more principled way to decide.
// If 'they' end up being the right answer, or if it ends up being more exotic,
// then be sure to change the alpha and beta info in the MergeSituation class.
//using (new ShortTermEnvironmentalVariable(MergeOrder.kConflictHandlingModeEnvVarName, MergeOrder.ConflictHandlingModeChoices.TheyWin.ToString()))
// Go with 'WeWin', since that is the default and that is how the alpha and beta data of MergeSituation is set, right before this method is called.
using (new ShortTermEnvironmentalVariable(MergeOrder.kConflictHandlingModeEnvVarName, MergeOrder.ConflictHandlingModeChoices.WeWin.ToString()))
{
var didMerge = Repository.Merge(_localRepositoryPath, theirHead.Number.LocalRevisionNumber);
FailureSimulator.IfTestRequestsItThrowNow("SychronizerAdjunct");
return didMerge;
}
}
public void Synchronizer_HandlesBothDefaultBranchOptions()
{
// Revisions can come in with both default or empty string on the default branch depending on OS
string savedSettings = "";
var rev1 = new Revision(null, "default", "Fred", "1234", "hash1234", "change something");
// The first revision we see on another branch doesn't produce a warning...it might be something old everyone has upgraded from.
var revs = new[] { rev1 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "", ref savedSettings), Is.Null);
var rev2 = new Revision(null, "", "Joe", "1235", "hash1235", "change something else");
// To get the right result this time, the list of revisions must include both branches we are pretending are in the repo.
revs = new[] { rev1, rev2 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "default", ref savedSettings), Is.Null); // first change we've seen on this branch
var rev3 = new Revision(null, "default", "Fred", "1236", "hash1236", "Fred's second change");
revs = new[] { rev2, rev3 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "default", ref savedSettings), Is.Null);
var rev4 = new Revision(null, "", "Joe", "1236", "hash1237", "Joe's second change");
revs = new[] { rev3, rev4 };
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "", ref savedSettings), Is.Null);
}
private bool CheckAndWarnIfNoCommonAncestor(Revision a, Revision b )
{
if (null ==Repository.GetCommonAncestorOfRevisions(a.Number.Hash,b.Number.Hash))
{
_progress.WriteWarning(
"This repository has an anomaly: the two heads we want to merge have no common ancestor. You should get help from the developers of this application.");
_progress.WriteWarning("1) \"{0}\" on {1} by {2} ({3}). ", a.GetHashCode(), a.Summary, a.DateString, a.UserId);
_progress.WriteWarning("2) \"{0}\" on {1} by {2} ({3}). ", b.GetHashCode(), b.Summary, b.DateString, b.UserId);
return true;
}
return false;
}
private void SetRevision(Revision descriptor)
{
Cursor.Current = Cursors.WaitCursor;
if (descriptor != null)
{
Changes = _revisionInspector.GetChangeRecords(descriptor);
}
else
{
Changes = null;
}
if(UpdateDisplay !=null)
{
UpdateDisplay.Invoke(this, null);
}
Cursor.Current = Cursors.Default;
}
private void MergeHeadsOrRollbackAndThrow(HgRepository repo, Revision workingRevBeforeSync)
{
try
{
MergeHeads();
}
catch (Exception error)
{
foreach (var chorusMergeProcess in Process.GetProcessesByName("ChorusMerge"))
{
_progress.WriteWarning(string.Format("Killing ChorusMerge Process: '{0}'...", chorusMergeProcess.Id));
chorusMergeProcess.Kill();
}
_progress.WriteException(error);
_progress.WriteError("Rolling back...");
UpdateToTheDescendantRevision(repo, workingRevBeforeSync); //rollback
throw;
}
}
internal void SelectedRevisionChanged(Revision descriptor)
{
// This was a public method, but it was changed to internal, since the whole model instance is effectively internal,
// since it is not exposed beyond its view, which is also not exposed to anyone.
// In an ideal world, the RevisionSelectedEvent instance in _revisionSelectedEvent would allow client code to add new subscribers,
// but that world doesn't exist yet, so the view has added a kludge Windows event and calls it, after callinng this method.
if (_revisionSelectedEvent!=null)
_revisionSelectedEvent.Raise(descriptor);
}
/// <summary>
/// Sets up everything necessary for a call out to the ChorusMerge executable
/// </summary>
/// <param name="targetHead"></param>
/// <param name="sourceHead"></param>
private void PrepareForMergeAttempt(Revision targetHead, Revision sourceHead)
{
//this is for posterity, on other people's machines, so use the hashes instead of local numbers
MergeSituation.PushRevisionsToEnvironmentVariables(targetHead.UserId, targetHead.Number.Hash,
sourceHead.UserId, sourceHead.Number.Hash);
MergeOrder.PushToEnvironmentVariables(_localRepositoryPath);
_progress.WriteMessage("Merging {0} and {1}...", targetHead.UserId, sourceHead.UserId);
_progress.WriteVerbose(" Revisions {0}:{1} with {2}:{3}...", targetHead.Number.LocalRevisionNumber, targetHead.Number.Hash,
sourceHead.Number.LocalRevisionNumber, sourceHead.Number.Hash);
RemoveMergeObstacles(targetHead, sourceHead);
}
public BookMark(HgRepository repository)
{
_repository = repository;
_revision = _repository.GetRevisionWorkingSetIsBasedOn();
}
/// <summary>
/// If everything got merged, then this is trivial. But in case of a merge failure,
/// the "tip" might be the other guy's unmergable data (maybe because he has a newer
/// version of some application than we do) We don't want to switch to that!
///
/// So if there are more than one head out there, we update to the one that is a descendant
/// of our latest checkin (which in the simple merge failure case is the the checkin itself,
/// but in a 3-or-more source scenario could be the result of a merge with a more cooperative
/// revision).
/// </summary>
private void UpdateToTheDescendantRevision(HgRepository repository, Revision parent)
{
try
{
var heads = repository.GetHeads();
//if there is only one head for the branch we started from just update
if (heads.Count(rev => rev.Branch == parent.Branch) == 1)
{
repository.Update(); //update to the tip
_sychronizerAdjunct.SimpleUpdate(_progress, false);
return;
}
if (heads.Count == 0)
{
return;//nothing has been checked in, so we're done! (this happens during some UI tests)
}
// when there are more than 2 people merging and there's a failure or a no-op merge happened
foreach (var head in heads)
{
if (parent.Number.Hash == head.Number.Hash || (head.Branch == parent.Branch && head.IsDirectDescendantOf(parent)))
{
repository.RollbackWorkingDirectoryToRevision(head.Number.LocalRevisionNumber);
_sychronizerAdjunct.SimpleUpdate(_progress, true);
return;
}
}
_progress.WriteWarning("Staying at previous-tip (unusual). Other users recent changes will not be visible.");
}
catch (UserCancelledException)
{
throw;
}
catch (Exception error)
{
ExplainAndThrow(error, "Could not update.");
}
}
private bool ShowRevisionPredicate(Revision revision)
{
return !revision.Summary.ToLower().Contains("hide");
}
private static string BranchName(Revision revision)
{
var name = revision.Branch;
return string.IsNullOrWhiteSpace(name) ? @"default" : name;
}
public void SynchronizerWithOnlyCurrentBranchRevision_ReportsNothing()
{
var rev1 = new Revision(null, "default", "Fred", "1234", "hash1234", "change something");
var revs = new[] { rev1 };
string savedSettings = "";
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "default", ref savedSettings), Is.Null);
Assert.That(savedSettings,Is.EqualTo(""));
// Even if we have remembered a previous revision on our own branch, we don't report problems on the current branch.
var rev2 = new Revision(null, "default", "Fred", "1235", "hash1234", "change something else");
revs = new[] { rev2 };
savedSettings = "default";
Assert.That(LiftSynchronizerAdjunct.GetRepositoryBranchCheckData(revs, "default", ref savedSettings), Is.Null);
Assert.That(savedSettings, Is.EqualTo("")); // still no revs on other branches to save.
}
/// <summary>
/// Do a no-op merge. (See: http://mercurial.selenic.com/wiki/PruningDeadBranches#No-Op_Merges)
/// </summary>
private void NoopMerge(HgRepository repo, Revision keeperRevision, Revision gonerRevision)
{
string optionalComment = null;
using (var optionalCommentDlg = new OptionalCommentDlg())
{
if (optionalCommentDlg.ShowDialog(this) == DialogResult.OK && !string.IsNullOrWhiteSpace(optionalCommentDlg.OptionalComment))
{
optionalComment = optionalCommentDlg.OptionalComment.Trim();
}
}
// Merge goner into keeper.
repo.Merge(_repoFolder, gonerRevision.Number.LocalRevisionNumber);
// Revert the merge.
repo.Execute(repo.SecondsBeforeTimeoutOnMergeOperation, "revert", "-a", "-r", keeperRevision.Number.LocalRevisionNumber);
// Commit
var comment = string.Format(@"No-Op Merge: Revert repository to revision '{0}'", keeperRevision.Number.LocalRevisionNumber);
if (!string.IsNullOrWhiteSpace(optionalComment))
comment = string.Format(@"{0}. {1}", comment, optionalComment);
repo.Commit(true, comment);
}
public bool IsMatchingStub(Revision stub)
{
return(stub.Summary.Contains(string.Format("({0} partial from", UserId)));
}