private IEnumerable <IList <RobocopyMetadata> > GetBuckets()
{
IList <RobocopyMetadata> allSources = new List <RobocopyMetadata>();
IList <IList <RobocopyMetadata> > allBuckets = new List <IList <RobocopyMetadata> >();
foreach (ITaskItem item in Sources ?? Enumerable.Empty <ITaskItem>())
{
if (RobocopyMetadata.TryParse(item, Log, FileSystem.DirectoryExists, out RobocopyMetadata metadata))
{
allSources.Add(metadata);
}
}
int bucketNum = -1;
int itemIndex = 0;
while (allSources.Count > 0)
{
RobocopyMetadata first = allSources.First();
allSources.RemoveAt(0);
List <RobocopyMetadata> bucket = new List <RobocopyMetadata>
{
first,
};
allBuckets.Add(bucket);
if (ShowDiagnosticTrace)
{
first.Dump(Log, ++bucketNum, 0);
itemIndex = 1;
}
for (int i = 0; i < allSources.Count; ++i)
{
RobocopyMetadata item = allSources[i];
if (string.Equals(item.SourceFolder, first.SourceFolder, StringComparison.OrdinalIgnoreCase) &&
item.HasWildcardMatches == first.HasWildcardMatches &&
item.IsRecursive == first.IsRecursive)
{
bucket.Add(item);
allSources.RemoveAt(i);
--i;
if (ShowDiagnosticTrace)
{
item.Dump(Log, bucketNum, itemIndex++);
}
}
}
}
return(allBuckets);
}
private void CopyItems(IList <RobocopyMetadata> items)
{
// buckets are grouped by source, IsRecursive, and HasWildcardMatches
RobocopyMetadata first = items.First();
bool isRecursive = first.IsRecursive;
bool hasWildcards = first.HasWildcardMatches;
DirectoryInfo source = new DirectoryInfo(first.SourceFolder);
if (hasWildcards || isRecursive)
{
string match = GetMatchString(items);
CopySearch(items, isRecursive, match, source, null);
}
else
{
// optimized path for direct file copies
CopyItems(items, source);
}
}
public static bool TryParse(ITaskItem item, TaskLoggingHelper log, Func <string, bool> directoryExists, out RobocopyMetadata metadata)
{
metadata = null;
if (string.IsNullOrEmpty(item.GetMetadata("DestinationFolder")))
{
log.LogError("A value for \"DestinationFolder\" is required for the item \"{0}\".", item.ItemSpec);
return(false);
}
// A common error - a property doesn't resolve and it references the drive root
if (item.ItemSpec.StartsWith(@"\") && !item.ItemSpec.StartsWith(@"\\"))
{
log.LogError("The specified source location \"{0}\" cannot start with '\'", item.ItemSpec);
return(false);
}
string source;
try
{
source = Path.GetFullPath(item.ItemSpec).TrimEnd(Path.DirectorySeparatorChar);
}
catch (Exception e)
{
log.LogError("Failed to expand the path \"{0}\".", item.ItemSpec);
log.LogErrorFromException(e);
return(false);
}
metadata = new RobocopyMetadata
{
IsRecursive = item.GetMetadataBoolean(nameof(IsRecursive)),
VerifyExists = item.GetMetadataBoolean(nameof(VerifyExists)),
AlwaysCopy = item.GetMetadataBoolean(nameof(AlwaysCopy), defaultValue: false),
OnlyNewer = item.GetMetadataBoolean(nameof(OnlyNewer), defaultValue: false),
};
foreach (string destination in item.GetMetadata("DestinationFolder").Split(DestinationSplitter, StringSplitOptions.RemoveEmptyEntries))
{
if (destination.StartsWith(@"\") && !destination.StartsWith(@"\\"))
{
log.LogError("The specified destination \"{0}\" cannot start with '{1}'", destination, Path.DirectorySeparatorChar);
return(false);
}
try
{
metadata.DestinationFolders.Add(Path.GetFullPath(destination).TrimEnd(Path.DirectorySeparatorChar));
}
catch (Exception e)
{
log.LogError("Failed to expand the path \"{0}\".", item.ItemSpec);
log.LogErrorFromException(e);
return(false);
}
}
if (directoryExists(source))
{
metadata.SourceFolder = source;
metadata.SplitItems("FileMatch", item);
metadata.SplitItems("FileExclude", item);
metadata.SplitItems("DirExclude", item);
metadata.HasWildcardMatches = metadata.FileRegexMatches != null || metadata.FileRegexExcludes != null || metadata.DirRegexExcludes != null;
}
else
{
metadata.IsRecursive = false;
metadata.SourceFolder = Path.GetDirectoryName(source);
metadata.FileMatches = new[] { Path.GetFileName(source) };
if (metadata.SourceFolder == null)
{
return(false);
}
}
return(true);
}
private void CopyFile(FileInfo sourceFile, FileInfo destFile, bool createDirs, RobocopyMetadata metadata)
{
if (createDirs)
{
CreateDirectoryWithRetries(destFile.DirectoryName);
}
for (int retry = 0; retry <= RetryCount; ++retry)
{
try
{
if (metadata.ShouldCopy(FileSystem, sourceFile, destFile))
{
destFile = FileSystem.CopyFile(sourceFile, destFile.FullName, true);
destFile.Attributes = FileAttributes.Normal;
destFile.LastWriteTime = sourceFile.LastWriteTime;
Log.LogMessage(MessageImportance.Low, "Copied {0} to {1}", sourceFile.FullName, destFile.FullName);
}
else
{
Log.LogMessage(MessageImportance.Low, "Skipped copying {0} to {1}", sourceFile.FullName, destFile.FullName);
}
break;
}
catch (IOException e)
{
LogCopyFailureAndSleep(retry, "Failed to copy {0} to {1}. {2}", sourceFile.FullName, destFile.FullName, e.Message);
}
}
}
