add APT::FTPArchive::AlwaysStat to disable the too aggressive

caching if versions are build multiply times (not recommend)
Patch by Christoph Goehre, thanks! (Closes: #463260)

1 files changed, 9 insertions, 5 deletions

diff --git a/ftparchive/cachedb.cc b/ftparchive/cachedb.cc
index dfda827b6..c352aa53c 100644
--- a/ftparchive/cachedb.cc
+++ b/ftparchive/cachedb.cc
@@ -102,9 +102,9 @@ bool CacheDB::OpenFile()
 // ---------------------------------------------------------------------
 /* This gets the size from the database if it's there.  If we need
  * to look at the file, also get the mtime from the file. */
-bool CacheDB::GetFileStat()
+bool CacheDB::GetFileStat(bool const &doStat)
 {
-	if ((CurStat.Flags & FlSize) == FlSize)
+	if ((CurStat.Flags & FlSize) == FlSize && doStat == false)
 	{
 		/* Already worked out the file size */
 	}
@@ -162,7 +162,7 @@ bool CacheDB::GetCurStat()
 // ---------------------------------------------------------------------
 bool CacheDB::GetFileInfo(string FileName, bool DoControl, bool DoContents,
 				bool GenContentsOnly, 
-				bool DoMD5, bool DoSHA1, bool DoSHA256)
+				bool DoMD5, bool DoSHA1, bool DoSHA256, bool const &checkMtime)
 {
 	this->FileName = FileName;
 
@@ -171,14 +171,18 @@ bool CacheDB::GetFileInfo(string FileName, bool DoControl, bool DoContents,
 		return false;
    }   
    OldStat = CurStat;
-	
-	if (GetFileStat() == false)
+
+	if (GetFileStat(checkMtime) == false)
 	{
 		delete Fd;
 		Fd = NULL;
 		return false;	
 	}
 
+    /* if mtime changed, update CurStat from disk */
+    if (checkMtime == true && OldStat.mtime != CurStat.mtime)
+        CurStat.Flags = FlSize;
+
 	Stats.Bytes += CurStat.FileSize;
 	Stats.Packages++;