private static void WriteCache(DiscoverRepository repManager, string repositoryName, IEnumerable <CachedFile> files)
{
var wkf = repManager.GetRepositoryWorkingFolder(repositoryName);
var cachePath = Path.Combine(wkf, "cache-control.xml");
if (!File.Exists(cachePath))
{
File.WriteAllText(cachePath, "<cache></cache>");
}
XElement xmlCache = XElement.Load(cachePath);
XElement xmlRepository = xmlCache.Elements("repository").FirstOrDefault(r => r?.Attribute("name")?.Value.ToLower() == repositoryName.ToLower());
if (xmlRepository == null)
{
xmlRepository = new XElement("repository", new XAttribute("name", repositoryName));
xmlCache.Add(xmlRepository);
}
var urlFiles = files.Select(f => f.URL.ToLower()).Distinct().ToArray();
var xmlFilesToRemove = xmlRepository?.Elements("file")?.
Where(f => urlFiles.Contains(f?.Element("url")?.Value?.ToLower() ?? ""));
if (xmlFilesToRemove?.Any() == true)
{
foreach (var node in xmlFilesToRemove)
{
node.Remove();
}
}
foreach (var f in files)
{
xmlRepository.Add(XElement.Parse(f.ToXML()));
}
File.WriteAllText(cachePath, xmlCache.ToString());
}
public static IEnumerable <FileInfo> CopyCacheTo(this DiscoverRepository rep, IEnumerable <CachedFile> cachedFiles, string directory)
{
List <FileInfo> files = new List <FileInfo>();
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
foreach (var f in cachedFiles)
{
FileInfo file = new FileInfo(Path.Combine(directory, f.Name));
File.Copy(f.LocalPath, file.FullName, true);
files.Add(file);
}
return(files);
}
public static IEnumerable <CachedFile> DownloadCache(this DiscoverRepository rep, string repositoryName, DiscoveredRepositoryCache target, IEnumerable <IFTPFile> files)
{
var wk = rep.GetRepositoryWorkingFolder(repositoryName, target);
var outDatedFiles = GetOutDatedFiles(rep, repositoryName, files);
var cachedFiles = files.Select(f => new CachedFile(XElement.Parse(ToXMLCache(f, Path.Combine(wk, f.Name))))).ToArray();
if ((outDatedFiles?.Count() ?? 0) == 0)
{
return(cachedFiles);
}
outDatedFiles = outDatedFiles.Select(f => (IFTPFile) new CachedFile(XElement.Parse(ToXMLCache(f, Path.Combine(wk, f.Name)))));
if (rep.Download(repositoryName, target, outDatedFiles))
{
WriteCache(rep, repositoryName, cachedFiles);
}
return(cachedFiles);
}
/*
* <cache>
* <repository name="">
* <file name="dbsdsd" size="" date="">
* <url>...</url>
* <dir>...</dir>
* </file>
* </repository>
* <cache>
*/
private static IEnumerable <IFTPFile> GetOutDatedFiles(
DiscoverRepository repManager,
string repositoryName,
IEnumerable <IFTPFile> files)
{
var dir = repManager.GetRepositoryWorkingFolder(repositoryName);
var cachePath = Path.Combine(dir, "cache-control.xml");
if (!File.Exists(cachePath))
{
return(files);
}
var rxXML = new Regex(@"\<\w+(\s\w+\=\"".+\"")*\>.*\<\/\w+\>");
string strContent = File.ReadAllText(cachePath);
if (!rxXML.IsMatch(strContent))
{
return(files);
}
var xmlCache = XElement.Parse(strContent);
var xmlRepository = xmlCache.Elements("repository")?
.FirstOrDefault(x => x?.Attribute("name")?.Value?.ToLower() == repositoryName.ToLower());
if (xmlRepository == null)
{
return(files);
}
var cached = xmlRepository.Elements("file")
.Select(f => new CachedFile(f))
.Where(f => File.Exists(f.LocalPath));
var hash = (from c in cached
join f in files
on GetHashFile(c) equals GetHashFile(f)
select GetHashFile(c)).ToArray();
var data = files.Where(f => !hash.Contains(GetHashFile(f))).ToArray();
return(data);
}
