Add support for writing by-hash dirs in apt-ftparchive

This option is enabled via the APT::FTPArchive::DoByHash switch.
It will also honor the option APT::FTPArchive::By-Hash-Keep that
controls how many previous generation of by-hash files should be
kept (defaults to 3).

Merged from https://github.com/mvo5/apt/tree/feature/apt-ftparchive-by-hash

1 files changed, 23 insertions, 0 deletions

diff --git a/ftparchive/byhash.h b/ftparchive/byhash.h
new file mode 100644
index 000000000..ce05397ad
--- /dev/null
+++ b/ftparchive/byhash.h
@@ -0,0 +1,23 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   ByHash 
+   
+   ByHash helper functions
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef BYHASH_H
+#define BYHASH_H
+
+class HashString;
+
+// Delete all files in "dir" except for the number specified in "KeepFiles"
+// that are the most recent ones
+void DeleteAllButMostRecent(std::string dir, int KeepFiles);
+
+// takes a regular input filename
+std::string GenByHashFilename(std::string Input, HashString h);
+
+#endif