private static RepositoryChangeRecord Merge(
RepositoryChangeRecord earlierRecord,
RepositoryChangeRecord laterRecord)
{
var mergedRecord = new RepositoryChangeRecord
{
Next = laterRecord.Next
};
// merged.add is ((earlier.add - later.remove) + later.add)
mergedRecord.Add = earlierRecord.Add
.Except(laterRecord.Remove)
.Union(laterRecord.Add)
.Distinct()
.ToArray();
// merged.remove is ((earlier.remove + later.remove) - later.add)
mergedRecord.Remove = earlierRecord.Remove
.Union(laterRecord.Remove)
.Except(laterRecord.Add)
.Distinct()
.ToArray();
return mergedRecord;
}
public static RepositoryChangeRecord MergeRepositoryChangeRecordsStartingWithIndex(this IRepositoryPublisher feed, int index)
{
RepositoryChangeRecord resultRecord = null;
var scanIndex = index;
for (; ;)
{
var scanRecord = feed.GetRepositoryChangeRecord(scanIndex);
if (scanRecord == null)
{
return(resultRecord);
}
if (resultRecord == null)
{
resultRecord = scanRecord;
}
else
{
resultRecord = Merge(resultRecord, scanRecord);
}
scanIndex = resultRecord.Next;
}
}
private static RepositoryChangeRecord Merge(
RepositoryChangeRecord earlierRecord,
RepositoryChangeRecord laterRecord)
{
var mergedRecord = new RepositoryChangeRecord
{
Next = laterRecord.Next
};
// merged.add is ((earlier.add - later.remove) + later.add)
mergedRecord.Add = earlierRecord.Add
.Except(laterRecord.Remove)
.Union(laterRecord.Add)
.Distinct()
.ToArray();
// merged.remove is ((earlier.remove + later.remove) - later.add)
mergedRecord.Remove = earlierRecord.Remove
.Union(laterRecord.Remove)
.Except(laterRecord.Add)
.Distinct()
.ToArray();
return(mergedRecord);
}
public virtual void StoreRepositoryChangeRecord(int index, RepositoryChangeRecord record)
{
var changeRecordPath = GetChangeRecordPath(index);
StoreFile(
changeRecordPath,
record,
createNew: index != 0);
}
public virtual void ApplyFileChanges(RepositoryChangeRecord changeRecord)
{
var alterations = changeRecord.Add
.Concat(changeRecord.Remove)
.Select(FirstTwoParts)
.Distinct()
.ToLookup(FirstPart);
foreach (var firstPart in alterations)
{
Reports.Information.WriteLine("Working with {0}", firstPart.Key.Bold());
var nameIndexPath = firstPart + "/$index.json";
var addVersions = new List <string>();
var removeVersions = new List <string>();
foreach (var firstTwoParts in firstPart)
{
Reports.Information.WriteLine("Working with {0}", firstTwoParts.Bold());
var addAssets = changeRecord.Add.SelectMany(After(firstTwoParts));
var removeAssets = changeRecord.Remove.SelectMany(After(firstTwoParts));
bool addedAllAssets;
bool removedAllAssets;
ChangeContents(
firstTwoParts + "/$index.json",
addAssets,
removeAssets,
out addedAllAssets,
out removedAllAssets);
if (addedAllAssets)
{
addVersions.Add(After(firstPart.Key)(firstTwoParts).Single());
}
else if (removedAllAssets)
{
removeVersions.Add(After(firstPart.Key)(firstTwoParts).Single());
}
}
bool addedAllVersions;
bool removedAllVersions;
ChangeContents(
firstPart.Key + "/$index.json",
addVersions,
removeVersions,
out addedAllVersions,
out removedAllVersions);
}
}
public virtual void ApplyFileChanges(RepositoryChangeRecord changeRecord, IRepositoryPublisher source)
{
ApplyFileChanges(changeRecord);
foreach (var removeFile in changeRecord.Remove)
{
RemoveArtifact(removeFile);
}
foreach (var addFile in changeRecord.Add)
{
using (var inputStream = source.ReadArtifactStream(addFile))
{
WriteArtifactStream(addFile, inputStream, createNew: false);
}
}
}
