Add olderFiles param to GetFiles methods

Author: andreaskueffel

FileSyncLibNet/AccessProviders/FileIoAccessProvider.cs

@@ -17,7 +17,7 @@ public FileIoAccessProvider(ILogger logger, string stateFilename)
             this.logger = logger;
             if (!string.IsNullOrEmpty(stateFilename))
                 remoteState = new RemoteState(stateFilename);
-            
+
         }
         public void UpdateAccessPath(string accessPath)
         {
@@ -31,7 +31,7 @@ public void CreateDirectory(string path)
 
         public FileInfo2 GetFileInfo(string path)
         {
-            if(null!=remoteState)
+            if (null != remoteState)
                 return remoteState.GetFileInfo(Path.Combine(AccessPath, path));
 
             var fi = new FileInfo(Path.Combine(AccessPath, path));
@@ -43,7 +43,7 @@ public FileInfo2 GetFileInfo(string path)
             };
         }
 
-        public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null)
+        public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null, bool olderFiles = false)
         {
             DirectoryInfo _di = new DirectoryInfo(AccessPath);
             List<FileInfo2> ret_val = new List<FileInfo2>();
@@ -57,10 +57,12 @@ public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, s
                         searchPattern: pattern,
                         searchOption: recursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly);
 
-
-                    ret_val.AddRange(_fi.Select(x => new FileInfo2(x.FullName.Substring(AccessPath.Length + 1), x.Exists) { Length = x.Length, LastWriteTime = x.LastWriteTime }).ToList());
+                    ret_val.AddRange(_fi.Where(x => (olderFiles ? x.LastWriteTime <= minimumLastWriteTime : x.LastWriteTime >= minimumLastWriteTime))
+                        .Select(x => new FileInfo2(x.FullName.Substring(AccessPath.Length + 1), x.Exists) { Length = x.Length, LastWriteTime = x.LastWriteTime })
+                        .ToList());
                 }
-                catch (Exception exc) {
+                catch (Exception exc)
+                {
                     logger?.LogError(exc, "exception in GetFiles for path {A}, dir {B}", path, dir);
                 }
             }

FileSyncLibNet/AccessProviders/IAccessProvider.cs

@@ -9,7 +9,7 @@ internal interface IAccessProvider
     {
         void CreateDirectory(string path);
         void UpdateAccessPath(string path);
-        List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null);
+        List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null, bool olderFiles=false);
         FileInfo2 GetFileInfo(string path);
         void Delete(FileInfo2 fileInfo);
         Stream GetStream(FileInfo2 file);

FileSyncLibNet/AccessProviders/ScpAccessProvider.cs

@@ -17,7 +17,7 @@ internal class ScpAccessProvider : IAccessProvider
         SftpClient ftpClient;
         private readonly RemoteState remoteState;
         public string AccessPath { get; private set; }
-        
+
         private readonly ILogger logger;
         public ScpAccessProvider(NetworkCredential credentials, ILogger logger, string stateFilename)
         {
@@ -137,7 +137,7 @@ public bool MatchesPattern(string fileName, string pattern)
             return Regex.IsMatch(fileName, regexPattern, RegexOptions.IgnoreCase);
         }
 
-        public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null)
+        public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, string path = null, bool recursive = false, List<string> subfolders = null, bool olderFiles = false)
         {
             //add try catch for non existent folders
             EnsureConnected();
@@ -156,7 +156,7 @@ public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, s
                 try
                 {
                     var files = ftpClient.ListDirectory(basePath);
-                    var sepChar="/";
+                    var sepChar = "/";
                     if (recursive)
                     {
                         foreach (var folder in files.Where(x => x.IsDirectory && !(x.Name == ".") && !(x.Name == "..")))
@@ -165,8 +165,8 @@ public List<FileInfo2> GetFiles(DateTime minimumLastWriteTime, string pattern, s
                             ret_val.AddRange(GetFiles(minimumLastWriteTime, pattern, subPath, recursive));
                         }
                     }
-                    ret_val.AddRange(files.Where(x => MatchesPattern(x.Name, pattern)).Where(x => x.LastWriteTime >= minimumLastWriteTime && !x.IsDirectory).Select(x =>
-                    new FileInfo2($"{(AccessPath.Length + 1<basePath.Length?(basePath.Substring(AccessPath.Length+1))+sepChar:string.Empty)}{x.Name}", exists: true) { LastWriteTime = x.LastWriteTime, Length = x.Length }).ToList());
+                    ret_val.AddRange(files.Where(x => MatchesPattern(x.Name, pattern)).Where(x => (olderFiles ? x.LastWriteTime <= minimumLastWriteTime : x.LastWriteTime >= minimumLastWriteTime) && !x.IsDirectory).Select(x =>
+                    new FileInfo2($"{(AccessPath.Length + 1 < basePath.Length ? (basePath.Substring(AccessPath.Length + 1)) + sepChar : string.Empty)}{x.Name}", exists: true) { LastWriteTime = x.LastWriteTime, Length = x.Length }).ToList());
                 }
                 catch (Exception exc)
                 {