forked from lix-project/lix
123 lines
3.3 KiB
XML
123 lines
3.3 KiB
XML
<varlistentry>
|
|
<term><option>--help</option></term>
|
|
<listitem>
|
|
<para>
|
|
Prints out a summary of the command syntax and exits.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
|
|
<varlistentry>
|
|
<term><option>--version</option></term>
|
|
<listitem>
|
|
<para>
|
|
Prints out the Nix version number on standard output and exits.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
|
|
<varlistentry>
|
|
<term><option>--verbose</option> / <option>-v</option></term>
|
|
<listitem>
|
|
<para>
|
|
Increases the level of verbosity of diagnostic messages printed
|
|
on standard error. For each Nix operation, the information
|
|
printed on standard output is well-defined; any diagnostic
|
|
information is printed on standard error, never on standard
|
|
output.
|
|
</para>
|
|
|
|
<para>
|
|
This option may be specified repeatedly. Currently, the
|
|
following verbosity levels exist:
|
|
</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term>0</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Errors only</quote>: only print messages explaining
|
|
why the Nix invocation failed.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>1</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Informational</quote>: print
|
|
<emphasis>useful</emphasis> messages about what Nix is
|
|
doing.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>2</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Talkative</quote>: print more informational messages.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>3</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Chatty</quote>: print even more informational messages.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>4</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Debug</quote>: print debug information:
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>5</term>
|
|
<listitem>
|
|
<para>
|
|
<quote>Vomit</quote>: print vast amounts of debug
|
|
information.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
|
|
<varlistentry>
|
|
<term><option>--build-output</option> / <option>-B</option></term>
|
|
<listitem>
|
|
<para>
|
|
Causes the output written by build actions to standard output
|
|
and standard error to be echoed to standard error, regardless of
|
|
verbosity level. By default, it is only echoed at a verbosity
|
|
level of at least 4 (<quote>Debug</quote>), and is suppressed at
|
|
lower levels. Note that it is always written to a log file in
|
|
<filename><replaceable>prefix</replaceable>/nix/var/log/nix</filename>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
|
|
<varlistentry>
|
|
<term><option>--keep-failed</option> / <option>-K</option></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies that in case of a build failure, the temporary
|
|
directory (usually in <filename>/tmp</filename>) in which the
|
|
build takes place should not be deleted. The path of the build
|
|
directory is printed as an informational message.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|