T getBranchChanged <T>(TreeChanges changes, BranchInfo branchInfo) where T : BranchModification, new() =>
new T
{
Branch = branchInfo,
Added = changes.Added.Select(a => new ItemAdded
{
Key = a.Path,
GetValue = () => getBlobValue(a.Oid)
}).ToList(),
Modified = changes.Modified.Select(m => new ItemModified
{
Key = m.Path,
GetValue = () => getBlobValue(m.Oid),
GetOldValue = () => getBlobValue(m.OldOid)
}).ToList(),
Renamed = changes.Renamed.Select(r => new ItemRenamed
{
Key = r.Path,
GetValue = () => getBlobValue(r.Oid),
GetOldValue = () => getBlobValue(r.OldOid),
OldKey = r.OldPath
}).ToList(),
Deleted = changes.Deleted.Select(d => new ItemDeleted {
Key = d.Path, GetValue = () => getBlobValue(d.OldOid)
}).ToList()
};
async Task raiseBranchDeleted(BranchInfo branchInfo)
{
try
{
_logger.Info($"Detected deletion of branch {branchInfo.Name}");
await _branchRemoved(new BranchRemoved { Branch = branchInfo });
}
catch (Exception ex)
{
_logger.Error(ex, $"Error while checking deleted branch {branchInfo.Name}");
throw;
}
}
async Task raiseBranchAdded(BranchInfo branch)
{
try
{
_logger.Info($"Detected a new branch {branch.Name}");
var currentCommit = _repo.Lookup <Commit>(branch.Commit);
var previousCommit = _repo.Branches["master"].Tip;
var result = _repo.Diff.Compare <TreeChanges>(previousCommit.Tree, currentCommit.Tree);
_logger.Info($"Finished diff, found {result.Added.Count()} added items, {result.Deleted.Count()} deleted items, {result.Renamed.Count()} renamed items and {result.Modified.Count()} modified items");
var eventInfo = getBranchChanged <BranchAdded>(result, branch);
eventInfo.BaseBranch = "master";
await _branchAdded(eventInfo);
}
catch (Exception ex)
{
_logger.Error(ex, $"Error while checking new branch {branch}");
throw;
}
}
async Task raiseBranchChanged(BranchDictionary previousBranches, BranchInfo branch)
{
try
{
var previousCommit = _repo.Lookup <Commit>(previousBranches[branch.Name].Commit);
var currentCommit = _repo.Lookup <Commit>(branch.Commit);
_logger.Trace($"Found differences on branch {branch.Name}, starting diff between {previousCommit.Sha} and {currentCommit.Sha}");
var result = _repo.Diff.Compare <TreeChanges>(previousCommit.Tree, currentCommit.Tree);
_logger.Info($"Finished diff on branch {branch.Name}, found {result.Added.Count()} added items, {result.Deleted.Count()} deleted items, {result.Renamed.Count()} renamed items and {result.Modified.Count()} modified items");
var eventInfo = getBranchChanged <BranchChanged>(result, branch);
eventInfo.PreviousCommit = previousCommit.Sha;
await _branchChanged(eventInfo);
}
catch (Exception ex)
{
_logger.Error(ex, $"Error while checking for changes on branch {branch}. Previous commit is {previousBranches[branch.Name].Commit}, Current commit is {branch.Commit}");
throw;
}
}