apt-pkg/acquire-item.cc: Only try to rename existing Release files (Closes: #622912)

[apt.git] / doc / apt.conf.5.xml

diff --git a/doc/apt.conf.5.xml b/doc/apt.conf.5.xml
index 39e2c8e6b43b53e05834e311898ea81f5eecc486..47750759805d05dde42938ba6b7b3cc4052d93ce 100644 (file)
--- a/doc/apt.conf.5.xml
+++ b/doc/apt.conf.5.xml
@@ -5,6 +5,9 @@
 <!ENTITY % aptent SYSTEM "apt.ent">
 %aptent;
 
+<!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent">
+%aptverbatiment;
+
 ]>
 
 <refentry>
@@ -49,8 +52,10 @@
       <listitem><para>all files in <literal>Dir::Etc::Parts</literal> in
         alphanumeric ascending order which have no or "<literal>conf</literal>"
         as filename extension and which only contain alphanumeric,
-        hyphen (-), underscore (_) and period (.) characters -
-        otherwise they will be silently ignored.</para></listitem>
+        hyphen (-), underscore (_) and period (.) characters.
+        Otherwise APT will print a notice that it has ignored a file if the file
+        doesn't match a pattern in the <literal>Dir::Ignore-Files-Silently</literal>
+        configuration list - in this case it will be silently ignored.</para></listitem>
       <listitem><para>the main configuration file specified by
         <literal>Dir::Etc::main</literal></para></listitem>
       <listitem><para>the command line options are applied to override the
@@ -199,9 +204,20 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";};
      anything that those packages depend on.</para></listitem>
      </varlistentry>
 
-     <varlistentry><term>Cache-Limit</term>
-     <listitem><para>APT uses a fixed size memory mapped cache file to store the 'available'
-     information. This sets the size of that cache (in bytes).</para></listitem>
+     <varlistentry><term>Cache-Start, Cache-Grow and Cache-Limit</term>
+     <listitem><para>APT uses since version 0.7.26 a resizable memory mapped cache file to store the 'available'
+     information. <literal>Cache-Start</literal> acts as a hint to which size the Cache will grow
+     and is therefore the amount of memory APT will request at startup. The default value is
+     20971520 bytes (~20 MB). Note that these amount of space need to be available for APT
+     otherwise it will likely fail ungracefully, so for memory restricted devices these value should
+     be lowered while on systems with a lot of configured sources this might be increased.
+     <literal>Cache-Grow</literal> defines in byte with the default of 1048576 (~1 MB) how much
+     the Cache size will be increased in the event the space defined by <literal>Cache-Start</literal>
+     is not enough. These value will be applied again and again until either the cache is big
+     enough to store all information or the size of the cache reaches the <literal>Cache-Limit</literal>.
+     The default of <literal>Cache-Limit</literal> is 0 which stands for no limit.
+     If <literal>Cache-Grow</literal> is set to 0 the automatic grow of the cache is disabled.
+     </para></listitem>
      </varlistentry>
 
      <varlistentry><term>Build-Essential</term>
@@ -428,12 +444,20 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";};
      the bzip2 method (the inbuilt) setting is <literallayout>Dir::Bin::bzip2 "/bin/bzip2";</literallayout>
      Note also that list entries specified on the command line will be added at the end of the list
      specified in the configuration files, but before the default entries. To prefer a type in this case
-     over the ones specified in in the configuration files you can set the option direct - not in list style.
+     over the ones specified in the configuration files you can set the option direct - not in list style.
      This will not override the defined list, it will only prefix the list with this type.</para>
-     <para>While it is possible to add an empty compression type to the order list, but APT in its current
-     version doesn't understand it correctly and will display many warnings about not downloaded files -
-     these warnings are most of the time false negatives. Future versions will maybe include a way to
-     really prefer uncompressed files to support the usage of local mirrors.</para></listitem>
+     <para>The special type <literal>uncompressed</literal> can be used to give uncompressed files a
+     preference, but note that most archives doesn't provide uncompressed files so this is mostly only
+     useable for local mirrors.</para></listitem>
+     </varlistentry>
+
+     <varlistentry><term>GzipIndexes</term>
+        <listitem><para>
+        When downloading <literal>gzip</literal> compressed indexes (Packages, Sources, or
+        Translations), keep them gzip compressed locally instead of unpacking
+        them. This saves quite a lot of disk space at the expense of more CPU
+        requirements when building the local package caches. False by default.
+        </para></listitem>
      </varlistentry>
 
      <varlistentry><term>Languages</term>
@@ -595,7 +619,7 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";};
 
    <refsect2><title>dpkg trigger usage (and related options)</title>
      <para>APT can call dpkg in a way so it can make aggressive use of triggers over
-     multiply calls of dpkg. Without further options dpkg will use triggers only in between his
+     multiple calls of dpkg. Without further options dpkg will use triggers only in between his
      own run. Activating these options can therefore decrease the time needed to perform the
      install / upgrade. Note that it is intended to activate these options per default in the
      future, but as it changes the way APT calling dpkg drastically it needs a lot more testing.