support setting empty values (sanely) & removing support for

[apt.git] / doc / apt-config.8.xml

diff --git a/doc/apt-config.8.xml b/doc/apt-config.8.xml
index d4d36891fc7448fc7a30559e4f25a9f66d575175..f35f2488cfc31ca666611ed3eefb245971131b0b 100644 (file)
--- a/doc/apt-config.8.xml
+++ b/doc/apt-config.8.xml
@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <?xml version="1.0" encoding="utf-8" standalone="no"?>

-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
-
-<!ENTITY % aptent SYSTEM "apt.ent">
-%aptent;
-
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY % aptent SYSTEM "apt.ent"> %aptent;
+<!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent"> %aptverbatiment;
+<!ENTITY % aptvendor SYSTEM "apt-vendor.ent"> %aptvendor;

 ]>
 
 <refentry>
 ]>
 
 <refentry>


@@ -15,7 +14,7 @@
    &apt-email;
    &apt-product;
    <!-- The last update date -->
    &apt-email;
    &apt-product;
    <!-- The last update date -->

-   <date>29 February 2004</date>
+   <date>2012-06-09T00:00:00Z</date>

  </refentryinfo>
  
  <refmeta>
  </refentryinfo>
  
  <refmeta>


@@ -30,38 +29,26 @@
     <refpurpose>APT Configuration Query program</refpurpose>
  </refnamediv>
 
     <refpurpose>APT Configuration Query program</refpurpose>
  </refnamediv>
 

- <!-- Arguments -->
- <refsynopsisdiv>
-   <cmdsynopsis>
-      <command>apt-config</command>
-      <arg><option>-hv</option></arg>
-      <arg><option>-o=<replaceable>config string</replaceable></option></arg>
-      <arg><option>-c=<replaceable>file</replaceable></option></arg>
-      <group choice="req">
-         <arg>shell</arg>
-         <arg>dump</arg>
-      </group>   
-   </cmdsynopsis>
- </refsynopsisdiv>
- 
+ &synopsis-command-apt-config;
+

  <refsect1><title>Description</title>
    <para><command>apt-config</command> is an internal program used by various
    portions of the APT suite to provide consistent configurability. It accesses
    the main configuration file <filename>/etc/apt/apt.conf</filename> in a
  <refsect1><title>Description</title>
    <para><command>apt-config</command> is an internal program used by various
    portions of the APT suite to provide consistent configurability. It accesses
    the main configuration file <filename>/etc/apt/apt.conf</filename> in a

-   manner that is easy to use by scripted applications.</para>
+   manner that is easy to use for scripted applications.</para>

 
    <para>Unless the <option>-h</option>, or <option>--help</option> option is
 
    <para>Unless the <option>-h</option>, or <option>--help</option> option is

-   given one of the commands below must be present.
+   given, one of the commands below must be present.

    </para>
    
    <variablelist>
    </para>
    
    <variablelist>

-     <varlistentry><term>shell</term>
+     <varlistentry><term><option>shell</option></term>

      <listitem><para>
      <listitem><para>

-     shell is used to access the configuration information from a shell 
-     script. It is given pairs of arguments, the first being a shell 
-     variable and the second the configuration value to query. As output 
-     it lists a series of shell assignments commands for each present value. 
-     In a shell script it should be used like:
+     shell is used to access the configuration information from a shell
+     script. It is given pairs of arguments, the first being a shell
+     variable and the second the configuration value to query. As output
+     it lists shell assignment commands for each value present.
+     In a shell script it should be used as follows:

      </para>
      
 <informalexample><programlisting>
      </para>
      
 <informalexample><programlisting>


@@ -81,7 +68,7 @@ eval $RES
      </listitem>
      </varlistentry>
 
      </listitem>
      </varlistentry>
 

-     <varlistentry><term>dump</term>
+     <varlistentry><term><option>dump</option></term>

      <listitem><para>
      Just show the contents of the configuration space.</para>
      </listitem>
      <listitem><para>
      Just show the contents of the configuration space.</para>
      </listitem>


@@ -94,7 +81,22 @@ eval $RES
    &apt-cmdblurb;
    
    <variablelist>
    &apt-cmdblurb;
    
    <variablelist>

-   
+     <varlistentry>
+      <term><option>--empty</option></term>
+      <listitem><para>Include options which have an empty value. This is the default, so
+                     use --no-empty to remove them from the output.</para></listitem>
+     </varlistentry>
+
+     <varlistentry>
+      <term><option>--format '<replaceable>&percnt;f &#x0022;&percnt;v&#x0022;;&percnt;n</replaceable>'</option></term>
+      <listitem><para>Defines the output of each config option. &percnt;t will be replaced with its individual name,
+                     &percnt;f with its full hierarchical name and &percnt;v with its value.
+                     Use uppercase letters and special characters in the value will be encoded to ensure that
+                     it can e.g. be safely used in a quoted-string as defined by RFC822. Additionally
+                     &percnt;n will be replaced by a newline, and &percnt;N by a tab. A &percnt; can be
+                     printed by using &percnt;&percnt;.</para></listitem>
+     </varlistentry>
+

      &apt-commonoptions;
      
    </variablelist>
      &apt-commonoptions;
      
    </variablelist>