public async Task Sync(DirectoryInfo source, string destination)
{
var filename = destination + "/" + HashStoreFilename;
Log.Verbose("Creating hashes for current deployment...");
var localFilesLookup = await FolderLookup.FromDirectory(source);
Log.Verbose("Retrieving previous deployment hashes...");
var remoteFilesLookup = await FolderLookup.FromFile(client, filename);
var filesToCopy = GetFilesToCopy(localFilesLookup, remoteFilesLookup);
var files = filesToCopy.Select(path => new FileInfo(Path.Join(source.FullName, path)));
client.MirrorDirTree(source, destination);
CopyFiles(source, files.ToList(), destination);
SaveLocalLookup(localFilesLookup, filename);
}
private IEnumerable <string> GetFilesToCopy(FolderLookup local, FolderLookup remote)
{
var lookup = local.Concat(remote).ToLookup(x => x.Key, pair => pair.Value);
var bothExist = lookup
.Where(pairs => pairs.Count() == 2);
var hashMismatch = bothExist
.Where(hashes =>
{
var list = hashes.ToList();
var localHash = list[0];
var remoteHash = list[1];
return(!localHash.SequenceEqual(remoteHash));
})
.Select(x => x.Key);
var localOnly = local.Where(pair => !remote.ContainsKey(pair.Key)).Select(x => x.Key);
var filesToCopy = hashMismatch.Concat(localOnly);
return(filesToCopy);
}