* Manual updates.
This commit is contained in:
Eelco Dolstra
parent
5346536b62
commit
b594215531
|
|
@ -7,8 +7,8 @@ XSLTPROC = $(ENV) $(xsltproc) $(xmlflags) --catalogs \
|
|||
--param html.stylesheet \'style.css\'
|
||||
|
||||
SOURCES = manual.xml introduction.xml installation.xml overview.xml \
|
||||
common-options.xml nix-store.xml nix-instantiate.xml \
|
||||
troubleshooting.xml bugs.xml \
|
||||
nix-store.xml nix-instantiate.xml \
|
||||
troubleshooting.xml bugs.xml opt-verbose.xml \
|
||||
style.css images
|
||||
|
||||
manual.is-valid: $(SOURCES) version.xml
|
||||
|
|
|
|||
|
|
@ -5,24 +5,20 @@
|
|||
|
||||
<listitem>
|
||||
<para>
|
||||
Nix should automatically remove Berkeley DB logfiles.
|
||||
</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
<para>
|
||||
Unify the concepts of successors and substitutes into a general notion
|
||||
of <emphasis>equivalent expressions</emphasis>. Expressions are
|
||||
equivalent if they have the same target paths with the same
|
||||
identifiers. However, even though they are functionally equivalent,
|
||||
they may differ stronly with respect to their <emphasis>performance
|
||||
characteristics</emphasis>. For example, realising a slice is more
|
||||
efficient that realising the derivation from which that slice was
|
||||
Unify the concepts of successors and substitutes into a
|
||||
general notion of <emphasis>equivalent expressions</emphasis>.
|
||||
Expressions are equivalent if they have the same target paths
|
||||
with the same identifiers. However, even though they are
|
||||
functionally equivalent, they may differ stronly with respect
|
||||
to their <emphasis>performance characteristics</emphasis>.
|
||||
For example, realising a closure expression is more efficient
|
||||
that realising the derivation expression from which it was
|
||||
produced. On the other hand, distributing sources may be more
|
||||
efficient (storage- or bandwidth-wise) than distributing binaries. So
|
||||
we need to be able to attach weigths or priorities or performance
|
||||
annotations to expressions; Nix can then choose the most efficient
|
||||
expression dependent on the context.
|
||||
efficient (storage- or bandwidth-wise) than distributing
|
||||
binaries. So we need to be able to attach weigths or
|
||||
priorities or performance annotations to expressions; Nix can
|
||||
then choose the most efficient expression dependent on the
|
||||
context.
|
||||
</para>
|
||||
</listitem>
|
||||
|
||||
|
|
|
|||
|
|
@ -1,13 +0,0 @@
|
|||
<sect1>
|
||||
<title>Common options</title>
|
||||
|
||||
<para>
|
||||
</para>
|
||||
|
||||
</sect1>
|
||||
|
||||
<!--
|
||||
local variables:
|
||||
sgml-parent-document: ("book.xml" "sect1")
|
||||
end:
|
||||
-->
|
||||
|
|
@ -6,7 +6,7 @@
|
|||
<!ENTITY introduction SYSTEM "introduction.xml">
|
||||
<!ENTITY installation SYSTEM "installation.xml">
|
||||
<!ENTITY overview SYSTEM "overview.xml">
|
||||
<!ENTITY common-options SYSTEM "common-options.xml">
|
||||
<!ENTITY opt-verbose SYSTEM "opt-verbose.xml">
|
||||
<!ENTITY nix-store SYSTEM "nix-store.xml">
|
||||
<!ENTITY nix-instantiate SYSTEM "nix-instantiate.xml">
|
||||
<!ENTITY troubleshooting SYSTEM "troubleshooting.xml">
|
||||
|
|
@ -36,7 +36,6 @@
|
|||
|
||||
<appendix>
|
||||
<title>Command Reference</title>
|
||||
&common-options;
|
||||
<sect1>
|
||||
<title>nix-store</title>
|
||||
&nix-store;
|
||||
|
|
|
|||
|
|
@ -7,10 +7,6 @@
|
|||
<refsynopsisdiv>
|
||||
<cmdsynopsis>
|
||||
<command>nix-store</command>
|
||||
<group choice='opt'>
|
||||
<arg><option>--path</option></arg>
|
||||
<arg><option>-p</option></arg>
|
||||
</group>
|
||||
<group choice='opt' rep='repeat'>
|
||||
<arg><option>--verbose</option></arg>
|
||||
<arg><option>-v</option></arg>
|
||||
|
|
@ -25,106 +21,36 @@
|
|||
</cmdsynopsis>
|
||||
</refsynopsisdiv>
|
||||
|
||||
<refsect1>
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The command <command>nix</command> provides access to the Nix store. This
|
||||
is the (set of) path(s) where Nix expressions and the file system objects
|
||||
built by them are stored.
|
||||
The command <command>nix-store</command> performs primitive
|
||||
operations on the Nix store. You generally do not need to run
|
||||
this command manually.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
<command>nix</command> has many subcommands called
|
||||
<emphasis>operations</emphasis>. These are individually documented
|
||||
below. Exactly one operation must always be provided.
|
||||
<command>nix-store</command> takes exactly one
|
||||
<emphasis>operation</emphasis> flag which indicated the
|
||||
subcommand to be performed. These are individually
|
||||
documented below.
|
||||
</para>
|
||||
|
||||
</refsect1>
|
||||
</refsection>
|
||||
|
||||
<refsect1>
|
||||
<title>Common Options</title>
|
||||
<refsection>
|
||||
<title>Common options</title>
|
||||
|
||||
<para>
|
||||
In this section the options that are common to all Nix operations are
|
||||
listed. These options are allowed for every subcommand (although they
|
||||
may not always have an effect).
|
||||
This section lists the options that are common to all Nix
|
||||
operations. These options are allowed for every subcommand,
|
||||
though they may not always have an effect.
|
||||
</para>
|
||||
|
||||
<variablelist>
|
||||
|
||||
<varlistentry>
|
||||
<term><option>--path</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Indicates that any identifier arguments to the operation are paths
|
||||
in the store rather than identifiers.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry>
|
||||
<term><option>--verbose</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 and specified below in the
|
||||
respective sections. 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>
|
||||
Print error messages only.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term>1</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Print informational messages.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term>2</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Print even more informational messages.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term>3</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Print messages that should only be useful for debugging.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term>4</term>
|
||||
<listitem>
|
||||
<para>
|
||||
<quote>Vomit mode</quote>: print vast amounts of debug
|
||||
information.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
&opt-verbose;
|
||||
|
||||
<varlistentry>
|
||||
<term><option>--keep-failed</option></term>
|
||||
|
|
@ -140,65 +66,103 @@
|
|||
|
||||
</variablelist>
|
||||
|
||||
</refsect1>
|
||||
</refsection>
|
||||
|
||||
|
||||
<refsection>
|
||||
<title>Environment variables</title>
|
||||
|
||||
<para>
|
||||
The following environment variables affect the behaviour of
|
||||
<command>nix-store</command>.
|
||||
</para>
|
||||
|
||||
<variablelist>
|
||||
|
||||
<varlistentry>
|
||||
<term><envar>TMPDIR</envar>=<replaceable>path</replaceable></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Use the directory <replaceable>path</replaceable> to store
|
||||
temporary files. In particular, this includes temporary
|
||||
build directories; these can take up substantial amounts
|
||||
of disk space. The default is <filename>/tmp</filename>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
</variablelist>
|
||||
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsect1>
|
||||
<title>Operation <option>--install</option></title>
|
||||
<refsection>
|
||||
<title>Operation <option>--realise</option></title>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix</command>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--install</option></arg>
|
||||
<arg><option>-i</option></arg>
|
||||
<arg><option>--realise</option></arg>
|
||||
<arg><option>-r</option></arg>
|
||||
</group>
|
||||
<arg choice='plain' rep='repeat'><replaceable>ids</replaceable></arg>
|
||||
<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
|
||||
</cmdsynopsis>
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The operation <option>--install</option> realises the Nix expressions
|
||||
identified by <replaceable>ids</replaceable> in the file system. If
|
||||
these expressions are derivation expressions, they are first
|
||||
normalised. That is, their target paths are are built, unless a normal
|
||||
form is already known.
|
||||
The operation <option>--install</option> realises in the file
|
||||
system the store expressions stored in
|
||||
<replaceable>paths</replaceable>. If these expressions are
|
||||
derivation expressions, they are first
|
||||
<emphasis>normalised</emphasis> into a closure expression.
|
||||
This may happen in two ways. First, the corresponding closure
|
||||
expression (the <emphasis>successor</emphasis>) may already
|
||||
known (either because the build has already been performed, or
|
||||
because a successor was explicitly registered through the
|
||||
<option>--successor</option> operation). Otherwise, the build
|
||||
action described by the derivation is performed, and a closure
|
||||
expression is computed by scanning the result of the build for
|
||||
references to other paths in the store.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
The identifiers of the normal forms of the given Nix expressions are
|
||||
printed on standard output.
|
||||
The paths of the closure expression corresponding to each
|
||||
expression in <replaceable>paths</replaceable> is printed on
|
||||
standard output.
|
||||
</para>
|
||||
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
</refsect1>
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsect1>
|
||||
<refsection>
|
||||
<title>Operation <option>--delete</option></title>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix</command>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--delete</option></arg>
|
||||
<arg><option>-d</option></arg>
|
||||
</group>
|
||||
<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
|
||||
</cmdsynopsis>
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
|
|
@ -215,24 +179,24 @@
|
|||
inconsistent system. Deletion of paths in the store is done by the
|
||||
garbage collector (which uses <option>--delete</option> to delete
|
||||
unreferenced paths).
|
||||
|
||||
</para>
|
||||
</warning>
|
||||
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
</refsect1>
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsect1>
|
||||
<refsection>
|
||||
<title>Operation <option>--query</option></title>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix</command>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--query</option></arg>
|
||||
<arg><option>-q</option></arg>
|
||||
|
|
@ -244,34 +208,28 @@
|
|||
</group>
|
||||
<group>
|
||||
<arg><option>--requisites</option></arg>
|
||||
<arg><option>-r</option></arg>
|
||||
</group>
|
||||
<group>
|
||||
<arg><option>--expansion</option></arg>
|
||||
<arg><option>-e</option></arg>
|
||||
</group>
|
||||
<group>
|
||||
<arg><option>--graph</option></arg>
|
||||
<arg><option>-g</option></arg>
|
||||
<arg><option>-R</option></arg>
|
||||
</group>
|
||||
<arg><option>--predecessors</option></arg>
|
||||
<arg><option>--graph</option></arg>
|
||||
</group>
|
||||
<arg choice='plain' rep='repeat'><replaceable>args</replaceable></arg>
|
||||
</cmdsynopsis>
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
<refsect2>
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The operation <option>--query</option> displays various bits of
|
||||
information about Nix expressions or paths in the store. The queries
|
||||
information about store expressions or store paths. The queries
|
||||
are described in <xref linkend='nixref-queries' />. At most one query
|
||||
can be specified; the default query is <option>--list</option>.
|
||||
can be specified. The default query is <option>--list</option>.
|
||||
</para>
|
||||
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
<refsect2 id='nixref-queries'>
|
||||
<refsection id='nixref-queries'>
|
||||
<title>Queries</title>
|
||||
|
||||
<variablelist>
|
||||
|
|
@ -280,34 +238,15 @@
|
|||
<term><option>--list</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Prints out the target paths of the Nix expressions indicated by
|
||||
the identifiers <replaceable>args</replaceable>. In the case of
|
||||
a derivation expression, these are the paths that will be
|
||||
produced by the builder of the expression. In the case of a
|
||||
slice expression, these are the root paths (which are generally
|
||||
the paths that were produced by the builder of the derivation
|
||||
expression of which the slice is a normal form).
|
||||
Prints out the <emphasis>output paths</emphasis> of the
|
||||
store expressions indicated by the identifiers
|
||||
<replaceable>args</replaceable>. In the case of a
|
||||
derivation expression, these are the paths that will be
|
||||
produced when the derivation is realised. In the case
|
||||
of a closure expression, these are the paths that were
|
||||
produced the derivation expression of which the closure
|
||||
expression is a successor.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
This query has one option:
|
||||
</para>
|
||||
|
||||
<variablelist>
|
||||
|
||||
<varlistentry>
|
||||
<term><option>--normalise</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Causes the target paths of the <emphasis>normal
|
||||
forms</emphasis> of the expressions to be printed, rather
|
||||
than the target paths of the expressions themselves.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
</variablelist>
|
||||
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
|
|
@ -315,40 +254,42 @@
|
|||
<term><option>--requisites</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Prints out the requisite paths of the Nix expressions indicated
|
||||
by the identifiers <replaceable>args</replaceable>. The
|
||||
requisite paths of a Nix expression are the paths that need to be
|
||||
present in the system to be able to realise the expression. That
|
||||
is, they form the <emphasis>closure</emphasis> of the expression
|
||||
in the file system (i.e., no path in the set of requisite paths
|
||||
points to anything outside the set of requisite paths).
|
||||
Prints out the requisite paths of the store expressions
|
||||
indicated by the identifiers
|
||||
<replaceable>args</replaceable>. The requisite paths of
|
||||
a Nix expression are the paths that need to be present
|
||||
in the system to be able to realise the expression.
|
||||
That is, they form the <emphasis>closure</emphasis> of
|
||||
the expression in the file system (i.e., no path in the
|
||||
set of requisite paths points to anything outside the
|
||||
set of requisite paths).
|
||||
</para>
|
||||
|
||||
<para>
|
||||
The notion of requisite paths is very useful when one wants to
|
||||
distribute Nix expressions. Since they form a closure, they are
|
||||
the only paths one needs to distribute to another system to be
|
||||
able to realise the expression on the other system.
|
||||
The notion of requisite paths is very useful when one
|
||||
wants to distribute store expressions. Since they form a
|
||||
closure, they are the only paths one needs to distribute
|
||||
to another system to be able to realise the expression
|
||||
on the other system.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
This query is generally used to implement various kinds of
|
||||
distribution. A <emphasis>source distribution</emphasis> is
|
||||
obtained by distributing the requisite paths of a derivation
|
||||
expression. A <emphasis>binary distribution</emphasis> is
|
||||
obtained by distributing the requisite paths of a slice
|
||||
expression (i.e., the normal form of a derivation expression; you
|
||||
can directly specify the identifier of the slice expression, or
|
||||
use <option>--normalise</option> and specify the identifier of a
|
||||
derivation expression). A <emphasis>cache
|
||||
distribution</emphasis> is obtained by distributing the
|
||||
requisite paths of a derivation expression and specifying the
|
||||
option <option>--include-successors</option>. This will include
|
||||
not just the paths of a source and binary distribution, but also
|
||||
all expressions and paths of subterms of the source. This is
|
||||
useful if one wants to realise on the target system a Nix
|
||||
expression that is similar but not quite the same as the one
|
||||
being distributed, since any common subterms will be reused.
|
||||
This query is generally used to implement various kinds
|
||||
of deployment. A <emphasis>source deployment</emphasis>
|
||||
is obtained by distributing the requisite paths of a
|
||||
derivation expression. A <emphasis>binary
|
||||
deployment</emphasis> is obtained by distributing the
|
||||
requisite paths of a closure expression. A
|
||||
<emphasis>cache deployment</emphasis> is obtained by
|
||||
distributing the requisite paths of a derivation
|
||||
expression and specifying the option
|
||||
<option>--include-successors</option>. This will
|
||||
include not just the paths of a source and binary
|
||||
deployment, but also all expressions and paths of
|
||||
subterms of the source. This is useful if one wants to
|
||||
realise on the target system a Nix expression that is
|
||||
similar but not quite the same as the one being
|
||||
distributed, since any common subterms will be reused.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
|
@ -361,9 +302,10 @@
|
|||
<term><option>--normalise</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Causes the requisite paths of the <emphasis>normal
|
||||
forms</emphasis> of the expressions to be printed, rather
|
||||
than the requisite paths of the expressions themselves.
|
||||
Causes the requisite paths of the
|
||||
<emphasis>successor</emphasis> of the given store
|
||||
expressions to be printed, rather than the
|
||||
requisite paths of the expressions themselves.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
@ -372,9 +314,10 @@
|
|||
<term><option>--exclude-exprs</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Excludes the paths of Nix expressions. This causes the
|
||||
closure property to be lost, that is, the resulting set of
|
||||
paths is not enough to ensure realisibility.
|
||||
Excludes the paths of store expressions. This
|
||||
causes the closure property to be lost, that is,
|
||||
the resulting set of paths is not enough to ensure
|
||||
realisibility.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
@ -406,12 +349,16 @@
|
|||
</varlistentry>
|
||||
|
||||
<varlistentry>
|
||||
<term><option>--expansion</option></term>
|
||||
<term><option>--predecessors</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
For each identifier in <replaceable>args</replaceable>, prints
|
||||
all expansions of that identifier, that is, all paths whose
|
||||
current content matches the identifier.
|
||||
For each store expression stored at paths
|
||||
<replaceable>args</replaceable>, prints its
|
||||
<emphasis>predecessors</emphasis>. A derivation
|
||||
expression <varname>p</varname> is a predecessor of a
|
||||
store expression <varname>q</varname> iff
|
||||
<varname>q</varname> is a successor of
|
||||
<varname>p</varname>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
@ -420,18 +367,121 @@
|
|||
<term><option>--graph</option></term>
|
||||
<listitem>
|
||||
<para>
|
||||
Prints a graph of the closure of the expressions identified by
|
||||
<replaceable>args</replaceable> in the format of the
|
||||
<command>dot</command> tool of AT&T's GraphViz package.
|
||||
Prints a graph of the closure of the store expressions
|
||||
identified by <replaceable>args</replaceable> in the
|
||||
format of the <command>dot</command> tool of AT&T's
|
||||
GraphViz package.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
</variablelist>
|
||||
|
||||
</refsect2>
|
||||
</refsection>
|
||||
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsection>
|
||||
<title>Operation <option>--successor</option></title>
|
||||
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--successor</option></arg>
|
||||
</group>
|
||||
<arg choice='plain'
|
||||
rep='repeat'><replaceable>srcpath</replaceable> <replaceable>sucpath</replaceable></arg>
|
||||
</cmdsynopsis>
|
||||
</refsection>
|
||||
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The operation <option>--successor</option> registers that the
|
||||
closure expression in <replaceable>sucpath</replaceable> is a
|
||||
successor of the derivation expression in
|
||||
<replaceable>srcpath</replaceable>. This is used to implement
|
||||
binary deployment.
|
||||
</para>
|
||||
|
||||
</refsection>
|
||||
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsection>
|
||||
<title>Operation <option>--substitute</option></title>
|
||||
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--substitute</option></arg>
|
||||
</group>
|
||||
<arg choice='plain'
|
||||
rep='repeat'><replaceable>srcpath</replaceable> <replaceable>subpath</replaceable></arg>
|
||||
</cmdsynopsis>
|
||||
</refsection>
|
||||
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The operation <option>--substitute</option> registers that the
|
||||
store path <replaceable>srcpath</replaceable> can be built by
|
||||
realising the derivation expression in
|
||||
<replaceable>subpath</replaceable>. This is used to implement
|
||||
binary deployment.
|
||||
</para>
|
||||
|
||||
</refsection>
|
||||
|
||||
</refsection>
|
||||
|
||||
|
||||
|
||||
<!--######################################################################-->
|
||||
|
||||
<refsection>
|
||||
<title>Operation <option>--verify</option></title>
|
||||
|
||||
<refsection>
|
||||
<title>Synopsis</title>
|
||||
<cmdsynopsis>
|
||||
<command>nix-store</command>
|
||||
<group>
|
||||
<arg><option>--verify</option></arg>
|
||||
</group>
|
||||
</cmdsynopsis>
|
||||
</refsection>
|
||||
|
||||
<refsection>
|
||||
<title>Description</title>
|
||||
|
||||
<para>
|
||||
The operation <option>--verify</option> verifies the internal
|
||||
consistency of the Nix database, and the consistency between
|
||||
the Nix database and the Nix store. Any inconsistencies
|
||||
encountered are automatically repaired. Inconsistencies are
|
||||
generally the result of the Nix store or database being
|
||||
modified by non-Nix tools, or of bugs in Nix itself.
|
||||
</para>
|
||||
|
||||
</refsection>
|
||||
|
||||
</refsection>
|
||||
|
||||
</refsect1>
|
||||
|
||||
|
||||
</refentry>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,73 @@
|
|||
<varlistentry>
|
||||
<term><option>--verbose</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>
|
||||
|
|
@ -1,22 +1,9 @@
|
|||
<appendix>
|
||||
<title>Troubleshooting</title>
|
||||
|
||||
<sect1>
|
||||
<title>Database logfile removal</title>
|
||||
|
||||
<para>
|
||||
Every time a Nix database transaction takes place, Nix writes a record of
|
||||
this transaction to a <emphasis>log</emphasis> in its database directory
|
||||
to ensure that the operation can be replayed in case of a application or
|
||||
system crash. However, without manual intervention, the log grows
|
||||
indefinitely. Hence, unused log files should be deleted periodically.
|
||||
This can be accomplished using the following command:
|
||||
</para>
|
||||
|
||||
<screen>
|
||||
$ rm `db_archive -a -h <replaceable>prefix</replaceable>/var/nix/db`</screen>
|
||||
|
||||
</sect1>
|
||||
<para>
|
||||
(Nothing.)
|
||||
</para>
|
||||
|
||||
</appendix>
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue