fix Alt-Filename handling of file method

[apt.git] / doc / acquire-additional-files.txt

diff --git a/doc/acquire-additional-files.txt b/doc/acquire-additional-files.txt
index e156f68ebfb13a92029959055c7197c24987bf70..68af9a5b03c2dad6f376453b37ac61e296ec49cd 100644 (file)
--- a/doc/acquire-additional-files.txt
+++ b/doc/acquire-additional-files.txt
@@ -88,7 +88,8 @@ Additional optional properties:
   this option to false to avoid problems with users setting the option
   globally. On the other hand, if you set it to true or don't set it you
   have to ensure your front-end can deal with all compressed fileformats
-  supported by apt (libapt users can e.g. use FileFd).
+  supported by apt (libapt users can e.g. use FileFd, others can use
+  the cat-file command of /usr/lib/apt/apt-helper).
 * flat{MetaKey,Description}: APT supports two types of repositories:
   dists-style repositories which are the default and by far the most
   common which are named after the fact that the files are in an
@@ -123,6 +124,10 @@ aren't accidentally used by front-ends:
   type a front-end can't open transparently. This should always be
   a temporary workaround through and a bug should be reported against
   the front-end in question.
+* KeepCompressedAs: The default value is a space separated list of
+  compression types supported by apt (see previous option) which is
+  sorted by the cost-value of the compression in ascending order,
+  except that cost=0 "compressions" (like uncompressed) are listed last.
 
 
 # More examples