private void SetActiveBranchCommits(MRepository repository)
{
IEnumerable <MSubBranch> branches = repository.SubBranches.Values
.Where(b =>
b.TipCommit.BranchId == null &&
b.IsActive);
foreach (MSubBranch branch in branches)
{
MCommit branchTip = branch.TipCommit;
MCommit last = TryFindFirstAncestorWithSameName(branchTip, branch.Name);
if (last == null)
{
// Could not find first ancestor commit with branch name
continue;
}
foreach (MCommit current in branchTip.CommitAndFirstAncestors())
{
current.SetBranchName(branch.Name);
current.SubBranchId = branch.SubBranchId;
if (current == last)
{
break;
}
}
}
}
private static void SetBranchCommitsOfParents(MRepository repository)
{
bool found;
do
{
found = false;
foreach (var commit in repository.Commits.Values)
{
if (commit.BranchId == null && !commit.HasBranchName && commit.HasFirstChild)
{
MCommit firstChild = commit.FirstChildren.ElementAt(0);
if (firstChild.HasBranchName)
{
if (commit.FirstChildren.All(c => c.BranchName == firstChild.BranchName))
{
commit.SetBranchName(firstChild.BranchName);
commit.SubBranchId = firstChild.SubBranchId;
found = true;
}
}
}
}
} while (found);
}
private static void SetMasterBranchCommits(MRepository repository, MSubBranch subBranch)
{
CommitId commitId = subBranch.TipCommitId;
while (commitId != CommitId.None)
{
MCommit commit = repository.Commits[commitId];
if (commit.BranchName == subBranch.Name && commit.SubBranchId != null)
{
// Do not break if commit is the tip
if (!(commit.Id == subBranch.TipCommitId && commit.SubBranchId == subBranch.SubBranchId))
{
break;
}
}
if (commit.HasBranchName && commit.BranchName != subBranch.Name)
{
Log.Warn($"commit {commit} already has branch {commit.BranchName} != {subBranch.Name}");
break;
}
commit.SetBranchName(subBranch.Name);
commit.SubBranchId = subBranch.SubBranchId;
commitId = commit.FirstParentId;
}
}
private static void AddEmptyBranchesVirtualTipCommits(MRepository repository)
{
IEnumerable <MBranch> emptyBranches = repository.Branches.Values
.Where(b => !b.Commits.Any() && !b.IsLocalPart);
foreach (MBranch branch in emptyBranches)
{
string virtualShaText = (Guid.NewGuid() + Guid.NewGuid().ToString()).Replace("-", "")
.Substring(0, 40);
CommitSha virtualSha = new CommitSha(virtualShaText);
CommitId virtualId = new CommitId(virtualShaText);
MCommit commit = AddVirtualCommit(repository, virtualId);
commit.IsVirtual = true;
commit.BranchId = branch.Id;
commit.SetBranchName(branch.Name);
CopyToVirtualCommit(repository, branch, commit, virtualSha);
SetChildOfParents(commit);
//repository.Commits[commit.Id] = commit;
branch.CommitIds.Add(commit.Id);
branch.TipCommitId = commit.Id;
branch.FirstCommitId = commit.Id;
branch.TipCommit.BranchTips = $"{branch.Name} branch tip";
}
}
private MCommit TryFindFirstAncestorWithSameName(MCommit startCommit, BranchName branchName)
{
foreach (MCommit commit in startCommit.CommitAndFirstAncestors())
{
BranchName commitBranchName = GetBranchName(commit);
if (commitBranchName != null)
{
if (commitBranchName == branchName)
{
// Found an ancestor, which has branch name we are searching fore
return(commit);
}
else
{
// Fond an ancestor with another different name
break;
}
}
if (commit != startCommit &&
commit.BranchTipBranches.Count == 1 && commit.BranchTipBranches[0].Name == branchName)
{
// Found a commit with a branch tip of a branch with same name,
// this can happen for local/remote pairs. Lets assume the commit is the on that branch
return(commit);
}
}
// Could not find an ancestor with the branch name we a searching for
return(null);
}
private static int CompareCommitsDescending(MCommit c1, MCommit c2)
{
if (c1 == c2)
{
return(0);
}
if (c1.CommitDate < c2.CommitDate)
{
return(1);
}
else if (c1.CommitDate > c2.CommitDate)
{
return(-1);
}
else
{
if (c2.Parents.Any(c => c.Id == c1.Id))
{
return(1);
}
else if (c1.Parents.Any(c => c.Id == c2.Id))
{
return(-1);
}
return(0);
}
}
private static void SetParentCommitId(MRepository repository)
{
foreach (var subBranch in repository.SubBranches.Values)
{
MCommit tipCommit = subBranch.TipCommit;
if (tipCommit.BranchId != null)
{
if (tipCommit.BranchName == subBranch.Name)
{
subBranch.ParentCommitId = repository.Branches[tipCommit.BranchId].ParentCommitId;
}
else
{
// This is a branch with no commits
subBranch.ParentCommitId = tipCommit.Id;
}
}
else
{
IEnumerable <MCommit> commits = subBranch.TipCommit.CommitAndFirstAncestors()
.TakeWhile(c => c.BranchName == subBranch.Name);
bool foundParent = false;
MCommit currentcommit = null;
foreach (MCommit commit in commits)
{
if (commit.BranchId != null)
{
subBranch.ParentCommitId = repository.Branches[commit.BranchId].ParentCommitId;
foundParent = true;
break;
}
currentcommit = commit;
}
if (!foundParent)
{
if (currentcommit != null)
{
// Sub branch has at least one commit
MCommit firstCommit = currentcommit;
subBranch.ParentCommitId = firstCommit.FirstParentId;
}
else
{
// Sub branch has no commits of its own, setting parent commit to same as branch tip
subBranch.ParentCommitId = tipCommit.Id;
}
}
}
}
}
public IEnumerable <MCommit> FirstAncestors()
{
MCommit current = FirstParent;
while (current != null)
{
yield return(current);
current = current.FirstParent;
}
}
private MCommit AddNewCommit(CommitId commitId)
{
MCommit commit = new MCommit()
{
Repository = this,
Id = commitId,
};
Commits[commitId] = commit;
return(commit);
}
private void AddCommit(MCommit commit, GitCommit gitCommit)
{
//string subject = gitCommit.Subject;
string tickets = ""; // GetTickets(subject);
commit.Tickets = tickets;
// Pre-create all parents
commit.ParentIds.ForEach(pid => commit.Repository.Commit(pid));
SetChildOfParents(commit);
commit.IsSet = true;
}
private static MCommit AddVirtualCommit(
MRepository repository,
CommitId virtualId)
{
MCommit commit = new MCommit()
{
Repository = repository,
Id = virtualId,
};
repository.Commits[virtualId] = commit;
return(commit);
}
private async Task SetSpecifiedCommitBranchNamesAsync(MRepository repository)
{
MCommit rootCommit = GetRootCommit(repository);
repository.RootCommitId = rootCommit.RealCommitId;
IReadOnlyList <CommitBranchName> gitSpecifiedNames = await gitCommitBranchNameService.GetEditedBranchNamesAsync(
rootCommit.Sha);
IReadOnlyList <CommitBranchName> commitBranches = await gitCommitBranchNameService.GetCommitBranchNamesAsync(
rootCommit.Sha);
commitBranchNameService.SetSpecifiedCommitBranchNames(gitSpecifiedNames, repository);
commitBranchNameService.SetCommitBranchNames(commitBranches, repository);
}
private static MCommit GetRootCommit(MRepository repository)
{
MSubBranch mSubBranch = repository.SubBranches
.FirstOrDefault(b => b.Value.IsActive && b.Value.Name == BranchName.Master).Value;
if (mSubBranch == null)
{
Asserter.FailFast($"Repository {repository.WorkingFolder} does not have a master branch");
}
IEnumerable <MCommit> firstAncestors = mSubBranch.TipCommit.FirstAncestorsAnSelf();
MCommit rootCommit = firstAncestors.Last();
return(rootCommit);
}
public BranchName GetBranchName(MCommit commit)
{
if (commit.BranchName != null)
{
return(commit.BranchName);
}
else if (commit.SpecifiedBranchName != null)
{
return(commit.SpecifiedBranchName);
}
else if (commit.FromSubjectBranchName != null)
{
return(commit.FromSubjectBranchName);
}
return(null);
}
private static void CopyToVirtualCommit
(MRepository repository, MBranch branch, MCommit commit, CommitSha virtualSha)
{
GitCommit gitCommit = new GitCommit(
virtualSha,
branch.ParentCommit.Subject,
branch.ParentCommit.Message,
branch.ParentCommit.Author,
branch.ParentCommit.AuthorDate,
branch.ParentCommit.CommitDate + TimeSpan.FromSeconds(1),
new List <CommitId> {
branch.ParentCommitId
});
repository.GitCommits[commit.Id] = gitCommit;
// commit.Id = GetId();
}
public IEnumerable <MCommit> Ancestors(Func <MCommit, bool> predicate)
{
Stack <MCommit> commits = new Stack <MCommit>();
Parents
.Where(predicate)
.ForEach(parent => commits.Push(parent));
while (commits.Any())
{
MCommit commit = commits.Pop();
yield return(commit);
commit.Parents
.Where(predicate)
.ForEach(parent => commits.Push(parent));
}
}
public void SetBranchTipCommitsNames(MRepository repository)
{
IEnumerable <MSubBranch> branches = repository.SubBranches.Values
.Where(b =>
b.TipCommit.BranchId == null &&
b.TipCommit.SubBranchId == null);
foreach (MSubBranch branch in branches)
{
MCommit branchTip = branch.TipCommit;
if (!branchTip.HasFirstChild &&
!branches.Any(b => b.Name != branch.Name && b.TipCommitId == branch.TipCommitId))
{
branchTip.SetBranchName(branch.Name);
branchTip.SubBranchId = branch.SubBranchId;
}
}
}
private static void CopyToUncommitedCommit(
GitBranch currentBranch,
MRepository repository,
GitStatus status,
MCommit commit,
CommitId parentId)
{
int modifiedCount = status.AllChanges;
int conflictCount = status.Conflicted;
string subject = $"{modifiedCount} uncommitted changes in working folder";
if (conflictCount > 0)
{
subject =
$"{conflictCount} conflicts and {modifiedCount} changes, {ShortSubject(status)}";
commit.HasConflicts = true;
}
else if (status.IsMerging)
{
subject = $"{modifiedCount} changes, {ShortSubject(status)}";
commit.IsMerging = true;
}
GitCommit gitCommit = new GitCommit(
CommitSha.Uncommitted,
subject,
subject,
"",
DateTime.Now,
DateTime.Now,
new List <CommitId> {
parentId
});
repository.GitCommits[CommitId.Uncommitted] = gitCommit;
commit.SetBranchName(currentBranch?.Name ?? "master");
commit.Tickets = "";
commit.BranchId = null;
}
private BranchName TryFindBranchName(MCommit root)
{
BranchName branchName = commitBranchNameService.GetBranchName(root);
if (branchName == null)
{
// Could not find a branch name from the commit, lets try it ancestors
foreach (MCommit commit in root.FirstAncestors()
.TakeWhile(c => c.HasSingleFirstChild))
{
branchName = commitBranchNameService.GetBranchName(commit);
if (branchName != null)
{
return(branchName);
}
}
}
return(branchName);
}
private void AddVirtualUncommitted(GitBranch currentBranch, GitStatus status, MRepository repository)
{
MCommit commit = repository.Commit(CommitId.Uncommitted);
repository.Uncommitted = commit;
commit.IsVirtual = true;
CommitId headCommitId = CommitId.NoCommits;
if (currentBranch != null)
{
CommitId headId = new CommitId(currentBranch.TipSha.Sha);
MCommit headCommit = repository.Commit(headId);
headCommitId = headCommit.Id;
}
CopyToUncommitedCommit(currentBranch, repository, status, commit, headCommitId);
SetChildOfParents(commit);
}
private void SetEmptyParentCommits(MRepository repository)
{
// All commits, which do have a name, but first parent commit does not have a name
bool isFound;
do
{
isFound = false;
IEnumerable <MCommit> commitsWithBranchName = repository.Commits.Values
.Where(commit =>
commit.BranchId == null &&
commit.HasBranchName &&
commit.HasFirstParent &&
!commit.FirstParent.HasBranchName);
foreach (MCommit commit in commitsWithBranchName)
{
BranchName branchName = commit.BranchName;
string subBranchId = commit.SubBranchId;
MCommit last = TryFindFirstAncestorWithSameName(commit.FirstParent, branchName);
if (last != null)
{
isFound = true;
foreach (MCommit current in commit.FirstAncestors())
{
current.SetBranchName(branchName);
current.SubBranchId = subBranchId;
if (current == last)
{
break;
}
}
}
}
} while (isFound);
}
private static void SetChildOfParents(MCommit commit)
{
bool isFirstParent = true;
foreach (MCommit parent in commit.Parents)
{
IList <CommitId> childIds = parent.ChildIds;
if (!childIds.Contains(commit.Id))
{
childIds.Add(commit.Id);
}
if (isFirstParent)
{
isFirstParent = false;
IList <CommitId> firstChildIds = parent.FirstChildIds;
if (!firstChildIds.Contains(commit.Id))
{
firstChildIds.Add(commit.Id);
}
}
}
}
public static Commit ToCommit(Repository repository, MCommit commit)
{
try
{
return(new Commit(
repository,
commit.Id,
commit.RealCommitId,
commit.RealCommitSha,
commit.Subject,
commit.Message,
commit.Author,
commit.AuthorDate,
commit.CommitDate,
commit.Tags,
commit.Tickets,
commit.BranchTips,
commit.ParentIds.ToList(),
commit.ChildIds.ToList(),
commit.BranchId,
commit.SpecifiedBranchName,
commit.CommitBranchName,
commit.IsLocalAhead,
commit.IsRemoteAhead,
commit.IsCommon,
commit.IsUncommitted,
commit.IsVirtual,
commit.HasConflicts,
commit.IsMerging,
commit.HasFirstChild));
}
catch (Exception e)
{
Log.Exception(e, $"Failed to convert {commit.Id}");
throw;
}
}
private static bool TryGetCommit(
MRepository repository,
string id,
out MCommit commit)
{
if (CommitId.TryParse(id, out CommitId commitId))
{
return(repository.Commits.TryGetValue(commitId, out commit));
}
else
{
foreach (var pair in repository.GitCommits.ToList())
{
if (pair.Value.Sha.Sha.StartsWithOic(id))
{
commitId = new CommitId(pair.Value.Sha);
return(repository.Commits.TryGetValue(commitId, out commit));
}
}
}
commit = null;
return(false);
}
public void AddBranchCommits(IReadOnlyList <GitBranch> branches, MRepository repository)
{
GitStatus status = repository.Status;
Timing t = new Timing();
IEnumerable <CommitSha> rootCommits = branches.Select(b => b.TipSha);
if (branches.TryGetCurrent(out GitBranch current) && current.IsDetached)
{
rootCommits = rootCommits.Concat(new[] { current.TipSha });
}
if (!rootCommits.Any())
{
AddVirtualEmptyCommit(repository);
rootCommits = new[] { CommitSha.NoCommits };
}
rootCommits = rootCommits.ToList();
t.Log("Root commit ids");
Dictionary <CommitSha, object> added = new Dictionary <CommitSha, object>();
Dictionary <CommitId, BranchName> branchNameByCommitId = new Dictionary <CommitId, BranchName>();
Dictionary <CommitId, BranchName> subjectBranchNameByCommitId = new Dictionary <CommitId, BranchName>();
Stack <CommitSha> commitShas = new Stack <CommitSha>();
rootCommits.ForEach(sha => commitShas.Push(sha));
rootCommits.ForEach(sha => added[sha] = null);
t.Log("Pushed roots on stack");
while (commitShas.Any())
{
CommitSha commitSha = commitShas.Pop();
CommitId commitId = new CommitId(commitSha.Sha);
GitCommit gitCommit;
IEnumerable <CommitSha> parentIds = null;
if (!repository.GitCommits.TryGetValue(commitId, out gitCommit))
{
Log.Warn($"Unknown commit {commitSha}");
continue;
}
if (IsMergeCommit(gitCommit))
{
TrySetBranchNameFromSubject(commitId, gitCommit, branchNameByCommitId, subjectBranchNameByCommitId);
}
MCommit commit = repository.Commit(commitId);
if (!commit.IsSet)
{
if (commit.Id == CommitId.NoCommits)
{
commit.IsVirtual = true;
commit.SetBranchName("master");
}
AddCommit(commit, gitCommit);
if (parentIds == null)
{
parentIds = gitCommit.ParentIds.Select(id => repository.GitCommits[id].Sha);
}
AddParents(parentIds, commitShas, added);
}
BranchName branchName;
if (branchNameByCommitId.TryGetValue(commitId, out branchName))
{
// Branch name set by a child commit (pull merge commit)
commit.SetBranchName(branchName);
}
BranchName subjectBranchName;
if (subjectBranchNameByCommitId.TryGetValue(commitId, out subjectBranchName))
{
// Subject branch name set by a child commit (merge commit)
gitCommit.SetBranchNameFromSubject(subjectBranchName);
}
}
if (!status.OK)
{
// Adding a virtual "uncommitted" commit since current working folder status has changes
AddVirtualUncommitted(current, status, repository);
}
}
private void SetLocalAndRemoteAhead(MRepository repository)
{
IEnumerable <MBranch> unsynkedBranches = repository.Branches.Values
.Where(b =>
b.IsActive &&
b.IsLocal &&
b.IsRemote &&
b.LocalTipCommitId != b.RemoteTipCommitId)
.ToList();
foreach (MBranch branch in unsynkedBranches)
{
MCommit localTipCommit = repository.Commits[branch.LocalTipCommitId];
MCommit remoteTipCommit = repository.Commits[branch.RemoteTipCommitId];
if (localTipCommit.Id == CommitId.Uncommitted)
{
localTipCommit = localTipCommit.FirstParent;
}
branch.Commits.ForEach(commit =>
{
commit.IsLocalAhead = false;
commit.IsRemoteAhead = false;
commit.IsLocal = false;
commit.IsRemote = false;
commit.IsCommon = false;
});
localTipCommit
.CommitAndAncestors(c => c.BranchId == branch.Id && c.IsLocal != true)
.ForEach(c => c.IsLocal = true);
remoteTipCommit
.CommitAndAncestors(c => c.BranchId == branch.Id && c.IsRemote != true)
.ForEach(c => c.IsRemote = true);
branch.Commits.ForEach(commit =>
{
commit.IsCommon = commit.IsLocal && commit.IsRemote;
});
MCommit commonCommit = localTipCommit
.CommitAndAncestors(c => c.BranchId == branch.Id)
.FirstOrDefault(c => c.IsCommon);
if (commonCommit == null)
{
if (branch.HasParentBranch)
{
commonCommit = branch.ParentCommit;
}
else
{
commonCommit = branch.FirstCommit;
}
}
if (commonCommit.Sha != localTipCommit.Sha ||
(repository.Commits[branch.LocalTipCommitId].IsUncommitted &&
!repository.Commits[branch.FirstCommitId].IsUncommitted))
{
MakeLocalBranch(repository, branch, localTipCommit.Id, commonCommit.Id);
}
if (branch.IsLocal)
{
HashSet <CommitId> marked = new HashSet <CommitId>();
int localCount = 0;
Stack <MCommit> commits = new Stack <MCommit>();
commits.Push(localTipCommit);
while (commits.Any())
{
MCommit commit = commits.Pop();
if (!marked.Contains(commit.Id) && !commit.IsCommon && commit.Branch == branch)
{
commit.IsLocalAhead = true;
localCount++;
marked.Add(commit.Id);
commit.Parents
.Where(p => p.Branch == branch)
.ForEach(p => commits.Push(p));
}
}
branch.LocalAheadCount = localCount;
}
if (branch.IsRemote)
{
HashSet <CommitId> marked = new HashSet <CommitId>();
int remoteCount = 0;
Stack <MCommit> commits = new Stack <MCommit>();
commits.Push(remoteTipCommit);
while (commits.Any())
{
MCommit commit = commits.Pop();
if (!marked.Contains(commit.Id) && !commit.IsCommon && commit.Branch == branch)
{
commit.IsRemoteAhead = true;
remoteCount++;
marked.Add(commit.Id);
commit.Parents
.Where(p => p.Branch == branch)
.ForEach(p => commits.Push(p));
}
}
branch.RemoteAheadCount = remoteCount;
}
}
}
private static void MakeLocalBranch(
MRepository repository,
MBranch branch,
CommitId localTip,
CommitId commonTip)
{
string name = $"{branch.Name}";
string branchId = name + "(local)-" + commonTip;
MBranch localBranch;
if (!repository.Branches.TryGetValue(branchId, out localBranch))
{
localBranch = new MBranch
{
IsLocalPart = true,
Repository = branch.Repository,
Name = name,
IsMultiBranch = false,
IsActive = true,
IsLocal = true,
ParentCommitId = commonTip,
};
localBranch.Id = branchId;
repository.Branches[localBranch.Id] = localBranch;
}
localBranch.TipCommitId = localTip;
localBranch.LocalTipCommitId = localTip;
localBranch.IsCurrent = branch.IsCurrent;
localBranch.IsActive = branch.IsActive;
Stack <MCommit> commits = new Stack <MCommit>();
commits.Push(repository.Commits[localTip]);
while (commits.Any())
{
MCommit commit = commits.Pop();
if (!commit.IsCommon && commit.Branch == branch)
{
commit.IsLocalAhead = true;
localBranch.CommitIds.Add(commit.Id);
branch.CommitIds.Remove(commit.Id);
commit.BranchId = localBranch.Id;
commit.Parents
.Where(p => p.Branch == branch)
.ForEach(p => commits.Push(p));
}
}
localBranch.LocalAheadCount = localBranch.Commits.Count();
localBranch.RemoteAheadCount = 0;
if (repository.Commits.TryGetValue(CommitId.Uncommitted, out MCommit uncommitted) &&
branch.TipCommitId == CommitId.Uncommitted)
{
localBranch.TipCommitId = uncommitted.Id;
localBranch.LocalTipCommitId = uncommitted.Id;
localBranch.CommitIds.Insert(0, uncommitted.Id);
branch.CommitIds.Remove(uncommitted.Id);
branch.TipCommitId = uncommitted.FirstParentId;
uncommitted.BranchId = localBranch.Id;
}
localBranch.FirstCommitId = localBranch.Commits.Last().Id;
branch.IsMainPart = true;
branch.LocalSubBranchId = localBranch.Id;
localBranch.MainBranchId = branch.Id;
if (branch.IsCurrent)
{
branch.IsCurrent = false;
}
branch.IsLocal = false;
branch.TipCommitId = branch.RemoteTipCommitId;
if (!branch.CommitIds.Any())
{
branch.FirstCommitId = branch.TipCommitId;
}
}