private bool ReplayChangeset(VssPathMapper pathMapper, Changeset changeset,
SvnWrapper svn, LinkedList <Revision> labels)
{
var needCommit = false;
foreach (Revision revision in changeset.Revisions)
{
if (workQueue.IsAborting)
{
break;
}
AbortRetryIgnore(delegate
{
needCommit |= ReplayRevision(pathMapper, revision, svn, labels);
});
}
return(needCommit);
}
private void DumpChangeset(Changeset changeset, int changesetId)
{
var firstRevTime = changeset.Revisions.First.Value.DateTime;
var changeDuration = changeset.DateTime - firstRevTime;
logger.WriteSectionSeparator();
logger.WriteLine("Changeset {0} - {1} ({2} secs) {3} {4} files",
changesetId, changeset.DateTime, changeDuration.TotalSeconds, changeset.User,
changeset.Revisions.Count);
if (!string.IsNullOrEmpty(changeset.Comment))
{
logger.WriteLine(changeset.Comment);
}
logger.WriteLine();
foreach (var revision in changeset.Revisions)
{
logger.WriteLine(" {0} {1}@{2} {3}",
revision.DateTime, revision.Item, revision.Version, revision.Action);
}
}
private bool ReplayChangeset(VssPathMapper pathMapper, Changeset changeset,
GitWrapper git, LinkedList<Revision> labels)
{
var needCommit = false;
foreach (Revision revision in changeset.Revisions)
{
if (workQueue.IsAborting)
{
break;
}
AbortRetryIgnore(delegate
{
needCommit |= ReplayRevision(pathMapper, revision, git, labels);
});
}
return needCommit;
}
private bool CommitChangeset(GitWrapper git, Changeset changeset)
{
var result = false;
AbortRetryIgnore(delegate
{
result = git.AddAll() &&
git.Commit(changeset.User, GetEmail(changeset.User),
changeset.Comment ?? DefaultComment, changeset.DateTime);
});
return result;
}
public void BuildChangesets()
{
workQueue.AddLast(delegate(object work)
{
logger.WriteSectionSeparator();
LogStatus(work, "Building changesets");
var unnamedLabelCount = 0ul;
var stopwatch = Stopwatch.StartNew();
var pendingChangesByUser = new Dictionary <string, Changeset>();
foreach (var dateEntry in revisionAnalyzer.SortedRevisions)
{
var dateTime = dateEntry.Key;
//foreach (Revision revision in dateEntry.Value)
for (var node = dateEntry.Value.First; node != dateEntry.Value.Last.Next; node = node.Next)
{
var revision = node.Value;
// VSS Destroyed Items: skip all. This will enable merging revisions separated by destroyed items.
if (excludeAllDestroyedItems)
{
if ((revision.Action as VssNamedAction)?.Name?.PhysicalName != null &&
revisionAnalyzer.IsDestroyed((revision.Action as VssNamedAction).Name.PhysicalName) &&
!revisionAnalyzer.Database.ItemExists((revision.Action as VssNamedAction).Name.PhysicalName))
{
continue;
}
}
// VSS Adds: fill in comments for add from create action
if (revision.Action.Type == VssActionType.Add && revision.Comment == null)
{
node.Value = revision = new Revision(revision.DateTime, revision.User, revision.Item, revision.Version, FindCorrespondingAction(revision, VssActionType.Create)?.Comment, revision.Action);
}
// VSS Labels: fill in empty label names as svn cannot have empty tag path.
if (revision.Action.Type == VssActionType.Label && string.IsNullOrEmpty(((VssLabelAction)revision.Action).Label))
{
node.Value = revision = new Revision(revision.DateTime, revision.User, revision.Item, revision.Version, revision.Comment, new VssLabelAction(string.Format(unnamedLabelFormat, revision.DateTime, ++unnamedLabelCount)));
}
// VSS Creates: skip all and exclude from changeset as it increases history complexity unnecessarily and the info is not useful at all. not used in exporter
if (revision.Action.Type == VssActionType.Create)
{
continue;
}
// determine target of project revisions
var actionType = revision.Action.Type;
var namedAction = revision.Action as VssNamedAction;
var targetFile = revision.Item.PhysicalName;
if (namedAction != null)
{
targetFile = namedAction.Name.PhysicalName;
}
// Create actions are only used to obtain initial item comments;
// items are actually created when added to a project
var creating = (actionType == VssActionType.Create ||
(actionType == VssActionType.Branch && !revision.Item.IsProject));
// Share actions are never conflict (which is important,
// since Share always precedes Branch)
var nonconflicting = creating || (actionType == VssActionType.Share);
// look up the pending change for user of this revision
// and flush changes past time threshold
var pendingUser = revision.User;
Changeset pendingChange = null;
LinkedList <string> flushedUsers = new LinkedList <string>();
foreach (var userEntry in pendingChangesByUser)
{
var user = userEntry.Key;
var change = userEntry.Value;
// flush change if file conflict or past time threshold
var flush = false;
var timeDiff = revision.DateTime - change.DateTime;
if (user == pendingUser)
{
// VSS Label: make labels on their own changeset
if ((revision.Action.Type == VssActionType.Label && change.Revisions.Last.Value.Action.Type != VssActionType.Label) ||
(revision.Action.Type != VssActionType.Label && change.Revisions.Last.Value.Action.Type == VssActionType.Label))
{
logger.WriteLine("NOTE: Splitting changeset due to label: {0}", change.Revisions.Last.Value.Action);
flush = true;
}
// Cannot combine due to file conflict. must be recorded as separate changes
else if (!nonconflicting && change.TargetFiles.Contains(targetFile))
{
logger.WriteLine("NOTE: Splitting changeset due to file conflict on {0}:", targetFile);
flush = true;
}
}
else
{
}
/*
* if (!mergeAcrossDifferentUser && !HasSameUser(revision, change.Revisions.Last.Value))
* {
* logger.WriteLine("NOTE: Splitting changeset due to different user: {0} != {1}", change.Revisions.Last.Value.User, revision.User);
* flush = true;
* }
*/
// additional check if not flushed above
if (!flush)
{
if ((TimeSpan.Zero == anyCommentThreshold ? TimeSpan.FromSeconds(1) : TimeSpan.Zero) + timeDiff > anyCommentThreshold)
{
var lastRevision = FindLastRevisionWithNonEmptyComment(change);
//if (HasSameComment(revision, change.Revisions.Last.Value))
if (HasSameComment(revision, lastRevision))
{
string message;
if ((TimeSpan.Zero == sameCommentThreshold ? TimeSpan.FromSeconds(1) : TimeSpan.Zero) + timeDiff < sameCommentThreshold)
{
message = "Using same-comment threshold";
}
else
{
message = "Splitting changeset due to same comment but exceeded threshold";
logger.WriteLine("NOTE: {0} ({1} second gap):", message, timeDiff.TotalSeconds);
flush = true;
}
}
else
{
//logger.WriteLine("NOTE: Splitting changeset due to different comment: {0} != {1}:", change.Revisions.Last.Value.Comment, revision.Comment);
logger.WriteLine("NOTE: Splitting changeset due to different comment: {0} != {1}:", lastRevision.Comment ?? "null", revision.Comment ?? "null");
flush = true;
}
}
}
if (flush)
{
AddChangeset(change);
flushedUsers.AddLast(user);
}
else if (user == pendingUser)
{
pendingChange = change;
}
}
foreach (string user in flushedUsers)
{
pendingChangesByUser.Remove(user);
}
// if no pending change for user, create a new one
if (pendingChange == null)
{
pendingChange = new Changeset();
pendingChange.User = pendingUser;
pendingChangesByUser[pendingUser] = pendingChange;
}
// update the time of the change based on the last revision
pendingChange.DateTime = revision.DateTime;
// add the revision to the change
pendingChange.Revisions.AddLast(revision);
// track target files in changeset to detect conflicting actions
if (!nonconflicting)
{
pendingChange.TargetFiles.Add(targetFile);
}
// build up a concatenation of unique revision comments
var revComment = revision.Comment;
if (revComment != null)
{
revComment = revComment.Trim();
if (revComment.Length > 0)
{
if (string.IsNullOrEmpty(pendingChange.Comment))
{
pendingChange.Comment = revComment;
}
else if (!pendingChange.Comment.Contains(revComment))
{
pendingChange.Comment += "\n" + revComment;
}
}
}
}
}
// flush all remaining changes
foreach (var change in pendingChangesByUser.Values)
{
AddChangeset(change);
}
stopwatch.Stop();
logger.WriteSectionSeparator();
logger.WriteLine("Found {0} changesets in {1:HH:mm:ss}",
changesets.Count, new DateTime(stopwatch.ElapsedTicks));
});
}
public void BuildChangesets()
{
workQueue.AddLast(delegate (object work)
{
logger.WriteSectionSeparator();
LogStatus(work, "Building changesets");
var unnamedLabelCount = 0ul;
var stopwatch = Stopwatch.StartNew();
var pendingChangesByUser = new Dictionary<string, Changeset>();
foreach (var dateEntry in revisionAnalyzer.SortedRevisions)
{
var dateTime = dateEntry.Key;
//foreach (Revision revision in dateEntry.Value)
for (var node = dateEntry.Value.First; node != dateEntry.Value.Last.Next; node = node.Next)
{
var revision = node.Value;
// VSS Destroyed Items: skip all. This will enable merging revisions separated by destroyed items.
if (excludeAllDestroyedItems)
{
if ((revision.Action as VssNamedAction)?.Name?.PhysicalName != null
&& revisionAnalyzer.IsDestroyed((revision.Action as VssNamedAction).Name.PhysicalName)
&& !revisionAnalyzer.Database.ItemExists((revision.Action as VssNamedAction).Name.PhysicalName))
{
continue;
}
}
// VSS Adds: fill in comments for add from create action
if (revision.Action.Type == VssActionType.Add && revision.Comment == null)
node.Value = revision = new Revision(revision.DateTime, revision.User, revision.Item, revision.Version, FindCorrespondingAction(revision, VssActionType.Create)?.Comment, revision.Action);
// VSS Labels: fill in empty label names as svn cannot have empty tag path.
if (revision.Action.Type == VssActionType.Label && string.IsNullOrEmpty(((VssLabelAction)revision.Action).Label))
node.Value = revision = new Revision(revision.DateTime, revision.User, revision.Item, revision.Version, revision.Comment, new VssLabelAction(string.Format(unnamedLabelFormat, revision.DateTime, ++unnamedLabelCount)));
// VSS Creates: skip all and exclude from changeset as it increases history complexity unnecessarily and the info is not useful at all. not used in exporter
if (revision.Action.Type == VssActionType.Create)
continue;
// determine target of project revisions
var actionType = revision.Action.Type;
var namedAction = revision.Action as VssNamedAction;
var targetFile = revision.Item.PhysicalName;
if (namedAction != null)
{
targetFile = namedAction.Name.PhysicalName;
}
// Create actions are only used to obtain initial item comments;
// items are actually created when added to a project
var creating = (actionType == VssActionType.Create ||
(actionType == VssActionType.Branch && !revision.Item.IsProject));
// Share actions are never conflict (which is important,
// since Share always precedes Branch)
var nonconflicting = creating || (actionType == VssActionType.Share);
// look up the pending change for user of this revision
// and flush changes past time threshold
var pendingUser = revision.User;
Changeset pendingChange = null;
LinkedList<string> flushedUsers = new LinkedList<string>();
foreach (var userEntry in pendingChangesByUser)
{
var user = userEntry.Key;
var change = userEntry.Value;
// flush change if file conflict or past time threshold
var flush = false;
var timeDiff = revision.DateTime - change.DateTime;
if (user == pendingUser)
{
// VSS Label: make labels on their own changeset
if ((revision.Action.Type == VssActionType.Label && change.Revisions.Last.Value.Action.Type != VssActionType.Label)
|| (revision.Action.Type != VssActionType.Label && change.Revisions.Last.Value.Action.Type == VssActionType.Label))
{
logger.WriteLine("NOTE: Splitting changeset due to label: {0}", change.Revisions.Last.Value.Action);
flush = true;
}
// Cannot combine due to file conflict. must be recorded as separate changes
else if (!nonconflicting && change.TargetFiles.Contains(targetFile))
{
logger.WriteLine("NOTE: Splitting changeset due to file conflict on {0}:", targetFile);
flush = true;
}
}
else
{
}
/*
if (!mergeAcrossDifferentUser && !HasSameUser(revision, change.Revisions.Last.Value))
{
logger.WriteLine("NOTE: Splitting changeset due to different user: {0} != {1}", change.Revisions.Last.Value.User, revision.User);
flush = true;
}
*/
// additional check if not flushed above
if (!flush)
{
if ((TimeSpan.Zero == anyCommentThreshold ? TimeSpan.FromSeconds(1) : TimeSpan.Zero) + timeDiff > anyCommentThreshold)
{
var lastRevision = FindLastRevisionWithNonEmptyComment(change);
//if (HasSameComment(revision, change.Revisions.Last.Value))
if (HasSameComment(revision, lastRevision))
{
string message;
if ((TimeSpan.Zero == sameCommentThreshold ? TimeSpan.FromSeconds(1) : TimeSpan.Zero) + timeDiff < sameCommentThreshold)
{
message = "Using same-comment threshold";
}
else
{
message = "Splitting changeset due to same comment but exceeded threshold";
logger.WriteLine("NOTE: {0} ({1} second gap):", message, timeDiff.TotalSeconds);
flush = true;
}
}
else
{
//logger.WriteLine("NOTE: Splitting changeset due to different comment: {0} != {1}:", change.Revisions.Last.Value.Comment, revision.Comment);
logger.WriteLine("NOTE: Splitting changeset due to different comment: {0} != {1}:", lastRevision.Comment ?? "null", revision.Comment ?? "null");
flush = true;
}
}
}
if (flush)
{
AddChangeset(change);
flushedUsers.AddLast(user);
}
else if (user == pendingUser)
{
pendingChange = change;
}
}
foreach (string user in flushedUsers)
pendingChangesByUser.Remove(user);
// if no pending change for user, create a new one
if (pendingChange == null)
{
pendingChange = new Changeset();
pendingChange.User = pendingUser;
pendingChangesByUser[pendingUser] = pendingChange;
}
// update the time of the change based on the last revision
pendingChange.DateTime = revision.DateTime;
// add the revision to the change
pendingChange.Revisions.AddLast(revision);
// track target files in changeset to detect conflicting actions
if (!nonconflicting)
{
pendingChange.TargetFiles.Add(targetFile);
}
// build up a concatenation of unique revision comments
var revComment = revision.Comment;
if (revComment != null)
{
revComment = revComment.Trim();
if (revComment.Length > 0)
{
if (string.IsNullOrEmpty(pendingChange.Comment))
{
pendingChange.Comment = revComment;
}
else if (!pendingChange.Comment.Contains(revComment))
{
pendingChange.Comment += "\n" + revComment;
}
}
}
}
}
// flush all remaining changes
foreach (var change in pendingChangesByUser.Values)
{
AddChangeset(change);
}
stopwatch.Stop();
logger.WriteSectionSeparator();
logger.WriteLine("Found {0} changesets in {1:HH:mm:ss}",
changesets.Count, new DateTime(stopwatch.ElapsedTicks));
});
}
private Revision FindLastRevisionWithNonEmptyComment(Changeset change)
{
var node = (LinkedListNode<Revision>)null;
for (node = change.Revisions.Last; node != change.Revisions.First.Previous && string.IsNullOrEmpty(node.Value.Comment); node = node.Previous)
;
return node?.Value??change.Revisions.Last.Value;
}
private void DumpChangeset(Changeset changeset, int changesetId)
{
var firstRevTime = changeset.Revisions.First.Value.DateTime;
var changeDuration = changeset.DateTime - firstRevTime;
logger.WriteSectionSeparator();
logger.WriteLine("Changeset {0} - {1} ({2} secs) {3} {4} files",
changesetId, changeset.DateTime, changeDuration.TotalSeconds, changeset.User,
changeset.Revisions.Count);
if (!string.IsNullOrEmpty(changeset.Comment))
{
logger.WriteLine(changeset.Comment);
}
logger.WriteLine();
foreach (var revision in changeset.Revisions)
{
logger.WriteLine(" {0} {1}@{2} {3}",
revision.DateTime, revision.Item, revision.Version, revision.Action);
}
}
private void AddChangeset(Changeset change)
{
changesets.AddLast(change);
int changesetId = changesets.Count;
DumpChangeset(change, changesetId);
}
private bool CommitChangeset(SvnWrapper svn, Changeset changeset)
{
var result = false;
AbortRetryIgnore(delegate
{
result = svn.AddAll() &&
svn.Commit(changeset.User, GetSvnUserFromVssUser(changeset.User),
changeset.Comment ?? DefaultComment, changeset.DateTime);
});
return result;
}