Removing empty directories

HISTORY

@@ -389,3 +389,5 @@ Video Disk Recorder Revision History
 - The "Green" button in the "Recordings" menu can now be used to rewind a
   recording and play it from the very beginning.
 - Fixed handling ':' in timer filenames and '\n' in timer summaries (see FORMATS).
+- When removing recordings empty directories are now removed from the video
+  directory.

recording.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: recording.c 1.26 2001/02/11 10:47:31 kls Exp $
+ * $Id: recording.c 1.27 2001/02/11 14:53:44 kls Exp $
  */
 
 #define _GNU_SOURCE
@@ -53,6 +53,7 @@ void RemoveDeletedRecordings(void)
               }
         if (r0 && time(NULL) - r0->start > DELETEDLIFETIME * 60) {
            r0->Remove();
+           RemoveEmptyVideoDirectories();
            LastRemoveCheck += REMOVELATENCY;
            return;
            }

tools.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 1.29 2001/02/11 11:18:45 kls Exp $
+ * $Id: tools.c 1.30 2001/02/11 14:44:22 kls Exp $
  */
 
 #define _GNU_SOURCE
@@ -249,6 +249,48 @@ bool RemoveFileOrDir(const char *FileName, bool FollowSymlinks)
   return true;
 }
 
+bool RemoveEmptyDirectories(const char *DirName, bool RemoveThis)
+{
+  DIR *d = opendir(DirName);
+  if (d) {
+     bool empty = true;
+     struct dirent *e;
+     while ((e = readdir(d)) != NULL) {
+           if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..") && strcmp(e->d_name, "lost+found")) {
+              char *buffer;
+              asprintf(&buffer, "%s/%s", DirName, e->d_name);
+              struct stat st;
+              if (stat(buffer, &st) == 0) {
+                 if (S_ISDIR(st.st_mode)) {
+                    if (!RemoveEmptyDirectories(buffer, true))
+                       empty = false;
+                    }
+                 else
+                    empty = false;
+                 }
+              else {
+                 LOG_ERROR_STR(buffer);
+                 delete buffer;
+                 return false;
+                 }
+              delete buffer;
+              }
+           }
+     closedir(d);
+     if (RemoveThis && empty) {
+        dsyslog(LOG_INFO, "removing %s", DirName);
+        if (remove(DirName) < 0) {
+           LOG_ERROR_STR(DirName);
+           return false;
+           }
+        }
+     return empty;
+     }
+  else
+     LOG_ERROR_STR(DirName);
+  return false;
+}
+
 char *ReadLink(const char *FileName)
 {
   char RealName[_POSIX_PATH_MAX];

tools.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 1.23 2001/01/13 15:36:00 kls Exp $
+ * $Id: tools.h 1.24 2001/02/11 13:39:40 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -48,6 +48,7 @@ uint FreeDiskSpaceMB(const char *Directory);
 bool DirectoryOk(const char *DirName, bool LogErrors = false);
 bool MakeDirs(const char *FileName, bool IsDirectory = false);
 bool RemoveFileOrDir(const char *FileName, bool FollowSymlinks = false);
+bool RemoveEmptyDirectories(const char *DirName, bool RemoveThis = false);
 char *ReadLink(const char *FileName);
 
 class cFile {

vdr.c

@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.cadsoft.de/people/kls/vdr
  *
- * $Id: vdr.c 1.52 2001/02/04 19:41:24 kls Exp $
+ * $Id: vdr.c 1.53 2001/02/11 14:51:44 kls Exp $
  */
 
 #include <getopt.h>
@@ -44,6 +44,8 @@
 #define KEYS_CONF "keys.conf"
 #endif
 
+#define ACTIVITYTIMEOUT 60 // seconds before starting housekeeping
+
 static int Interrupted = 0;
 
 static void SignalHandler(int signum)
@@ -218,6 +220,7 @@ int main(int argc, char *argv[])
   cReplayControl *ReplayControl = NULL;
   int LastChannel = -1;
   int PreviousChannel = cDvbApi::CurrentChannel();
+  time_t LastActivity = time(NULL);
 
   while (!Interrupted) {
         // Channel display:
@@ -324,8 +327,14 @@ int main(int argc, char *argv[])
            EITScanner.Process();
            cVideoCutter::Active();
            }
-        if (!*Interact && !cRecordControls::Active())
-           RemoveDeletedRecordings();
+        if (!*Interact && !cRecordControls::Active()) {
+           if (time(NULL) - LastActivity > ACTIVITYTIMEOUT) {
+              RemoveDeletedRecordings();
+              LastActivity = time(NULL);
+              }
+           }
+        else
+           LastActivity = time(NULL);
         }
   isyslog(LOG_INFO, "caught signal %d", Interrupted);
   Setup.CurrentChannel = cDvbApi::CurrentChannel();

videodir.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: videodir.c 1.3 2000/12/24 12:51:41 kls Exp $
+ * $Id: videodir.c 1.4 2001/02/11 13:48:30 kls Exp $
  */
 
 #include "videodir.h"
@@ -28,7 +28,7 @@ public:
   cVideoDirectory(void);
   ~cVideoDirectory();
   uint FreeMB(void);
-  const char *Name(void) { return name; }
+  const char *Name(void) { return name ? name : VideoDirectory; }
   const char *Stored(void) { return stored; }
   int Length(void) { return length; }
   bool IsDistributed(void) { return name != NULL; }
@@ -197,3 +197,11 @@ const char *PrefixVideoFileName(const char *FileName, char Prefix)
   return PrefixedName;
 }
 
+void RemoveEmptyVideoDirectories(void)
+{
+  cVideoDirectory Dir;
+  do {
+     RemoveEmptyDirectories(Dir.Name());
+     } while (Dir.Next());
+}
+

videodir.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: videodir.h 1.2 2000/12/24 12:41:10 kls Exp $
+ * $Id: videodir.h 1.3 2001/02/11 13:12:50 kls Exp $
  */
 
 #ifndef __VIDEODIR_H
@@ -18,5 +18,6 @@ bool RenameVideoFile(const char *OldName, const char *NewName);
 bool RemoveVideoFile(const char *FileName);
 bool VideoFileSpaceAvailable(unsigned int SizeMB);
 const char *PrefixVideoFileName(const char *FileName, char Prefix);
+void RemoveEmptyVideoDirectories(void);
 
 #endif //__VIDEODIR_H