* Manual updates.
This commit is contained in:
Eelco Dolstra
parent
5346536b62
commit
b594215531
7 changed files with 346 additions and 254 deletions
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@ -7,8 +7,8 @@ XSLTPROC = $(ENV) $(xsltproc) $(xmlflags) --catalogs \
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--param html.stylesheet \'style.css\'
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--param html.stylesheet \'style.css\'
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SOURCES = manual.xml introduction.xml installation.xml overview.xml \
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SOURCES = manual.xml introduction.xml installation.xml overview.xml \
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common-options.xml nix-store.xml nix-instantiate.xml \
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nix-store.xml nix-instantiate.xml \
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troubleshooting.xml bugs.xml \
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troubleshooting.xml bugs.xml opt-verbose.xml \
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style.css images
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style.css images
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manual.is-valid: $(SOURCES) version.xml
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manual.is-valid: $(SOURCES) version.xml
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@ -5,24 +5,20 @@
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<listitem>
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<listitem>
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<para>
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<para>
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Nix should automatically remove Berkeley DB logfiles.
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Unify the concepts of successors and substitutes into a
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</para>
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general notion of <emphasis>equivalent expressions</emphasis>.
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</listitem>
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Expressions are equivalent if they have the same target paths
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with the same identifiers. However, even though they are
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<listitem>
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functionally equivalent, they may differ stronly with respect
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<para>
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to their <emphasis>performance characteristics</emphasis>.
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Unify the concepts of successors and substitutes into a general notion
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For example, realising a closure expression is more efficient
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of <emphasis>equivalent expressions</emphasis>. Expressions are
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that realising the derivation expression from which it was
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equivalent if they have the same target paths with the same
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identifiers. However, even though they are functionally equivalent,
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they may differ stronly with respect to their <emphasis>performance
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characteristics</emphasis>. For example, realising a slice is more
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efficient that realising the derivation from which that slice was
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produced. On the other hand, distributing sources may be more
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produced. On the other hand, distributing sources may be more
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efficient (storage- or bandwidth-wise) than distributing binaries. So
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efficient (storage- or bandwidth-wise) than distributing
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we need to be able to attach weigths or priorities or performance
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binaries. So we need to be able to attach weigths or
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annotations to expressions; Nix can then choose the most efficient
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priorities or performance annotations to expressions; Nix can
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expression dependent on the context.
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then choose the most efficient expression dependent on the
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context.
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</para>
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</para>
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</listitem>
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</listitem>
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@ -1,13 +0,0 @@
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<sect1>
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<title>Common options</title>
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<para>
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</para>
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</sect1>
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<!--
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local variables:
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sgml-parent-document: ("book.xml" "sect1")
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end:
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-->
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@ -6,7 +6,7 @@
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<!ENTITY introduction SYSTEM "introduction.xml">
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<!ENTITY introduction SYSTEM "introduction.xml">
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<!ENTITY installation SYSTEM "installation.xml">
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<!ENTITY installation SYSTEM "installation.xml">
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<!ENTITY overview SYSTEM "overview.xml">
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<!ENTITY overview SYSTEM "overview.xml">
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<!ENTITY common-options SYSTEM "common-options.xml">
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<!ENTITY opt-verbose SYSTEM "opt-verbose.xml">
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<!ENTITY nix-store SYSTEM "nix-store.xml">
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<!ENTITY nix-store SYSTEM "nix-store.xml">
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<!ENTITY nix-instantiate SYSTEM "nix-instantiate.xml">
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<!ENTITY nix-instantiate SYSTEM "nix-instantiate.xml">
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<!ENTITY troubleshooting SYSTEM "troubleshooting.xml">
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<!ENTITY troubleshooting SYSTEM "troubleshooting.xml">
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@ -36,7 +36,6 @@
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<appendix>
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<appendix>
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<title>Command Reference</title>
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<title>Command Reference</title>
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&common-options;
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<sect1>
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<sect1>
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<title>nix-store</title>
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<title>nix-store</title>
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&nix-store;
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&nix-store;
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@ -7,10 +7,6 @@
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<refsynopsisdiv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<cmdsynopsis>
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<command>nix-store</command>
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<command>nix-store</command>
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<group choice='opt'>
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<arg><option>--path</option></arg>
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<arg><option>-p</option></arg>
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</group>
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<group choice='opt' rep='repeat'>
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<group choice='opt' rep='repeat'>
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<arg><option>--verbose</option></arg>
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<arg><option>--verbose</option></arg>
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<arg><option>-v</option></arg>
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<arg><option>-v</option></arg>
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@ -25,106 +21,36 @@
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</cmdsynopsis>
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</cmdsynopsis>
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</refsynopsisdiv>
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</refsynopsisdiv>
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<refsect1>
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<refsection>
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<title>Description</title>
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<title>Description</title>
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<para>
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<para>
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The command <command>nix</command> provides access to the Nix store. This
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The command <command>nix-store</command> performs primitive
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is the (set of) path(s) where Nix expressions and the file system objects
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operations on the Nix store. You generally do not need to run
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built by them are stored.
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this command manually.
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</para>
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</para>
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<para>
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<para>
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<command>nix</command> has many subcommands called
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<command>nix-store</command> takes exactly one
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<emphasis>operations</emphasis>. These are individually documented
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<emphasis>operation</emphasis> flag which indicated the
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below. Exactly one operation must always be provided.
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subcommand to be performed. These are individually
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documented below.
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</para>
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</para>
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</refsect1>
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</refsection>
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<refsect1>
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<refsection>
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<title>Common Options</title>
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<title>Common options</title>
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<para>
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<para>
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In this section the options that are common to all Nix operations are
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This section lists the options that are common to all Nix
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listed. These options are allowed for every subcommand (although they
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operations. These options are allowed for every subcommand,
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may not always have an effect).
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though they may not always have an effect.
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</para>
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</para>
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<variablelist>
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<variablelist>
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<varlistentry>
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&opt-verbose;
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<term><option>--path</option></term>
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<listitem>
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<para>
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Indicates that any identifier arguments to the operation are paths
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in the store rather than identifiers.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--verbose</option></term>
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<listitem>
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<para>
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Increases the level of verbosity of diagnostic messages printed on
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standard error. For each Nix operation, the information printed on
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standard output is well-defined and specified below in the
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respective sections. Any diagnostic information is printed on
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standard error, never on standard output.
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</para>
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<para>
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This option may be specified repeatedly. Currently, the following
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verbosity levels exist:
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</para>
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<variablelist>
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<varlistentry>
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<term>0</term>
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<listitem>
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<para>
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Print error messages only.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>1</term>
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<listitem>
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<para>
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Print informational messages.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>2</term>
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<listitem>
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<para>
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Print even more informational messages.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>3</term>
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<listitem>
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<para>
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Print messages that should only be useful for debugging.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>4</term>
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<listitem>
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<para>
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<quote>Vomit mode</quote>: print vast amounts of debug
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information.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</listitem>
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</varlistentry>
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<varlistentry>
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<varlistentry>
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<term><option>--keep-failed</option></term>
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<term><option>--keep-failed</option></term>
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@ -140,65 +66,103 @@
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</variablelist>
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</variablelist>
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</refsect1>
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</refsection>
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<refsection>
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<title>Environment variables</title>
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<para>
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The following environment variables affect the behaviour of
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<command>nix-store</command>.
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</para>
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<variablelist>
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<varlistentry>
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<term><envar>TMPDIR</envar>=<replaceable>path</replaceable></term>
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<listitem>
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<para>
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Use the directory <replaceable>path</replaceable> to store
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temporary files. In particular, this includes temporary
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build directories; these can take up substantial amounts
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of disk space. The default is <filename>/tmp</filename>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsection>
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<!--######################################################################-->
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<!--######################################################################-->
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<refsect1>
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<refsection>
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<title>Operation <option>--install</option></title>
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<title>Operation <option>--realise</option></title>
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<refsect2>
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<refsection>
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<title>Synopsis</title>
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<title>Synopsis</title>
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<cmdsynopsis>
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<cmdsynopsis>
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<command>nix</command>
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<command>nix-store</command>
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<group>
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<group>
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<arg><option>--install</option></arg>
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<arg><option>--realise</option></arg>
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<arg><option>-i</option></arg>
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<arg><option>-r</option></arg>
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</group>
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</group>
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<arg choice='plain' rep='repeat'><replaceable>ids</replaceable></arg>
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<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
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</cmdsynopsis>
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</cmdsynopsis>
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</refsect2>
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</refsection>
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<refsect2>
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<refsection>
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<title>Description</title>
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<title>Description</title>
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<para>
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<para>
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The operation <option>--install</option> realises the Nix expressions
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The operation <option>--install</option> realises in the file
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identified by <replaceable>ids</replaceable> in the file system. If
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system the store expressions stored in
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these expressions are derivation expressions, they are first
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<replaceable>paths</replaceable>. If these expressions are
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normalised. That is, their target paths are are built, unless a normal
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derivation expressions, they are first
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form is already known.
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<emphasis>normalised</emphasis> into a closure expression.
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This may happen in two ways. First, the corresponding closure
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expression (the <emphasis>successor</emphasis>) may already
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known (either because the build has already been performed, or
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because a successor was explicitly registered through the
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<option>--successor</option> operation). Otherwise, the build
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action described by the derivation is performed, and a closure
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expression is computed by scanning the result of the build for
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references to other paths in the store.
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</para>
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</para>
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<para>
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<para>
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The identifiers of the normal forms of the given Nix expressions are
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The paths of the closure expression corresponding to each
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printed on standard output.
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expression in <replaceable>paths</replaceable> is printed on
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standard output.
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</para>
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</para>
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</refsect2>
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</refsection>
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</refsection>
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</refsect1>
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<!--######################################################################-->
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<!--######################################################################-->
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<refsect1>
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<refsection>
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<title>Operation <option>--delete</option></title>
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<title>Operation <option>--delete</option></title>
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<refsect2>
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<refsection>
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<title>Synopsis</title>
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<title>Synopsis</title>
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<cmdsynopsis>
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<cmdsynopsis>
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<command>nix</command>
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<command>nix-store</command>
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<group>
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<group>
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<arg><option>--delete</option></arg>
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<arg><option>--delete</option></arg>
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<arg><option>-d</option></arg>
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<arg><option>-d</option></arg>
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</group>
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</group>
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<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
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<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
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</cmdsynopsis>
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</cmdsynopsis>
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||||||
</refsect2>
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</refsection>
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<refsect2>
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<refsection>
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||||||
<title>Description</title>
|
<title>Description</title>
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||||||
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||||||
<para>
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<para>
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|
@ -215,24 +179,24 @@
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inconsistent system. Deletion of paths in the store is done by the
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inconsistent system. Deletion of paths in the store is done by the
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garbage collector (which uses <option>--delete</option> to delete
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garbage collector (which uses <option>--delete</option> to delete
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unreferenced paths).
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unreferenced paths).
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||||||
</para>
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</para>
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</warning>
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</warning>
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</refsect2>
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</refsection>
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</refsection>
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</refsect1>
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<!--######################################################################-->
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<!--######################################################################-->
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<refsect1>
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<refsection>
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<title>Operation <option>--query</option></title>
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<title>Operation <option>--query</option></title>
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||||||
|
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<refsect2>
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<refsection>
|
||||||
<title>Synopsis</title>
|
<title>Synopsis</title>
|
||||||
<cmdsynopsis>
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<cmdsynopsis>
|
||||||
<command>nix</command>
|
<command>nix-store</command>
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||||||
<group>
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<group>
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||||||
<arg><option>--query</option></arg>
|
<arg><option>--query</option></arg>
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<arg><option>-q</option></arg>
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<arg><option>-q</option></arg>
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|
@ -244,34 +208,28 @@
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</group>
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</group>
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||||||
<group>
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<group>
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||||||
<arg><option>--requisites</option></arg>
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<arg><option>--requisites</option></arg>
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||||||
<arg><option>-r</option></arg>
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<arg><option>-R</option></arg>
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||||||
</group>
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</group>
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||||||
<group>
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<arg><option>--predecessors</option></arg>
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||||||
<arg><option>--expansion</option></arg>
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||||||
<arg><option>-e</option></arg>
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||||||
</group>
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||||||
<group>
|
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||||||
<arg><option>--graph</option></arg>
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<arg><option>--graph</option></arg>
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||||||
<arg><option>-g</option></arg>
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||||||
</group>
|
|
||||||
</group>
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</group>
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||||||
<arg choice='plain' rep='repeat'><replaceable>args</replaceable></arg>
|
<arg choice='plain' rep='repeat'><replaceable>args</replaceable></arg>
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||||||
</cmdsynopsis>
|
</cmdsynopsis>
|
||||||
</refsect2>
|
</refsection>
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||||||
|
|
||||||
<refsect2>
|
<refsection>
|
||||||
<title>Description</title>
|
<title>Description</title>
|
||||||
|
|
||||||
<para>
|
<para>
|
||||||
The operation <option>--query</option> displays various bits of
|
The operation <option>--query</option> displays various bits of
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||||||
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
|
are described in <xref linkend='nixref-queries' />. At most one query
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||||||
can be specified; the default query is <option>--list</option>.
|
can be specified. The default query is <option>--list</option>.
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||||||
</para>
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</para>
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||||||
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||||||
</refsect2>
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</refsection>
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||||||
|
|
||||||
<refsect2 id='nixref-queries'>
|
<refsection id='nixref-queries'>
|
||||||
<title>Queries</title>
|
<title>Queries</title>
|
||||||
|
|
||||||
<variablelist>
|
<variablelist>
|
||||||
|
|
@ -280,34 +238,15 @@
|
||||||
<term><option>--list</option></term>
|
<term><option>--list</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
Prints out the target paths of the Nix expressions indicated by
|
Prints out the <emphasis>output paths</emphasis> of the
|
||||||
the identifiers <replaceable>args</replaceable>. In the case of
|
store expressions indicated by the identifiers
|
||||||
a derivation expression, these are the paths that will be
|
<replaceable>args</replaceable>. In the case of a
|
||||||
produced by the builder of the expression. In the case of a
|
derivation expression, these are the paths that will be
|
||||||
slice expression, these are the root paths (which are generally
|
produced when the derivation is realised. In the case
|
||||||
the paths that were produced by the builder of the derivation
|
of a closure expression, these are the paths that were
|
||||||
expression of which the slice is a normal form).
|
produced the derivation expression of which the closure
|
||||||
|
expression is a successor.
|
||||||
</para>
|
</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>
|
</listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
||||||
|
|
@ -315,40 +254,42 @@
|
||||||
<term><option>--requisites</option></term>
|
<term><option>--requisites</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
Prints out the requisite paths of the Nix expressions indicated
|
Prints out the requisite paths of the store expressions
|
||||||
by the identifiers <replaceable>args</replaceable>. The
|
indicated by the identifiers
|
||||||
requisite paths of a Nix expression are the paths that need to be
|
<replaceable>args</replaceable>. The requisite paths of
|
||||||
present in the system to be able to realise the expression. That
|
a Nix expression are the paths that need to be present
|
||||||
is, they form the <emphasis>closure</emphasis> of the expression
|
in the system to be able to realise the expression.
|
||||||
in the file system (i.e., no path in the set of requisite paths
|
That is, they form the <emphasis>closure</emphasis> of
|
||||||
points to anything outside the set of requisite paths).
|
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>
|
||||||
|
|
||||||
<para>
|
<para>
|
||||||
The notion of requisite paths is very useful when one wants to
|
The notion of requisite paths is very useful when one
|
||||||
distribute Nix expressions. Since they form a closure, they are
|
wants to distribute store expressions. Since they form a
|
||||||
the only paths one needs to distribute to another system to be
|
closure, they are the only paths one needs to distribute
|
||||||
able to realise the expression on the other system.
|
to another system to be able to realise the expression
|
||||||
|
on the other system.
|
||||||
</para>
|
</para>
|
||||||
|
|
||||||
<para>
|
<para>
|
||||||
This query is generally used to implement various kinds of
|
This query is generally used to implement various kinds
|
||||||
distribution. A <emphasis>source distribution</emphasis> is
|
of deployment. A <emphasis>source deployment</emphasis>
|
||||||
obtained by distributing the requisite paths of a derivation
|
is obtained by distributing the requisite paths of a
|
||||||
expression. A <emphasis>binary distribution</emphasis> is
|
derivation expression. A <emphasis>binary
|
||||||
obtained by distributing the requisite paths of a slice
|
deployment</emphasis> is obtained by distributing the
|
||||||
expression (i.e., the normal form of a derivation expression; you
|
requisite paths of a closure expression. A
|
||||||
can directly specify the identifier of the slice expression, or
|
<emphasis>cache deployment</emphasis> is obtained by
|
||||||
use <option>--normalise</option> and specify the identifier of a
|
distributing the requisite paths of a derivation
|
||||||
derivation expression). A <emphasis>cache
|
expression and specifying the option
|
||||||
distribution</emphasis> is obtained by distributing the
|
<option>--include-successors</option>. This will
|
||||||
requisite paths of a derivation expression and specifying the
|
include not just the paths of a source and binary
|
||||||
option <option>--include-successors</option>. This will include
|
deployment, but also all expressions and paths of
|
||||||
not just the paths of a source and binary distribution, but also
|
subterms of the source. This is useful if one wants to
|
||||||
all expressions and paths of subterms of the source. This is
|
realise on the target system a Nix expression that is
|
||||||
useful if one wants to realise on the target system a Nix
|
similar but not quite the same as the one being
|
||||||
expression that is similar but not quite the same as the one
|
distributed, since any common subterms will be reused.
|
||||||
being distributed, since any common subterms will be reused.
|
|
||||||
</para>
|
</para>
|
||||||
|
|
||||||
<para>
|
<para>
|
||||||
|
|
@ -361,9 +302,10 @@
|
||||||
<term><option>--normalise</option></term>
|
<term><option>--normalise</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
Causes the requisite paths of the <emphasis>normal
|
Causes the requisite paths of the
|
||||||
forms</emphasis> of the expressions to be printed, rather
|
<emphasis>successor</emphasis> of the given store
|
||||||
than the requisite paths of the expressions themselves.
|
expressions to be printed, rather than the
|
||||||
|
requisite paths of the expressions themselves.
|
||||||
</para>
|
</para>
|
||||||
</listitem>
|
</listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
@ -372,9 +314,10 @@
|
||||||
<term><option>--exclude-exprs</option></term>
|
<term><option>--exclude-exprs</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
Excludes the paths of Nix expressions. This causes the
|
Excludes the paths of store expressions. This
|
||||||
closure property to be lost, that is, the resulting set of
|
causes the closure property to be lost, that is,
|
||||||
paths is not enough to ensure realisibility.
|
the resulting set of paths is not enough to ensure
|
||||||
|
realisibility.
|
||||||
</para>
|
</para>
|
||||||
</listitem>
|
</listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
@ -406,12 +349,16 @@
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
||||||
<varlistentry>
|
<varlistentry>
|
||||||
<term><option>--expansion</option></term>
|
<term><option>--predecessors</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
For each identifier in <replaceable>args</replaceable>, prints
|
For each store expression stored at paths
|
||||||
all expansions of that identifier, that is, all paths whose
|
<replaceable>args</replaceable>, prints its
|
||||||
current content matches the identifier.
|
<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>
|
</para>
|
||||||
</listitem>
|
</listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
@ -420,18 +367,121 @@
|
||||||
<term><option>--graph</option></term>
|
<term><option>--graph</option></term>
|
||||||
<listitem>
|
<listitem>
|
||||||
<para>
|
<para>
|
||||||
Prints a graph of the closure of the expressions identified by
|
Prints a graph of the closure of the store expressions
|
||||||
<replaceable>args</replaceable> in the format of the
|
identified by <replaceable>args</replaceable> in the
|
||||||
<command>dot</command> tool of AT&T's GraphViz package.
|
format of the <command>dot</command> tool of AT&T's
|
||||||
|
GraphViz package.
|
||||||
</para>
|
</para>
|
||||||
</listitem>
|
</listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
||||||
</variablelist>
|
</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>
|
</refentry>
|
||||||
|
|
|
||||||
73
doc/manual/opt-verbose.xml
Normal file
73
doc/manual/opt-verbose.xml
Normal file
|
|
@ -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>
|
||||||
|
|
@ -1,23 +1,10 @@
|
||||||
<appendix>
|
<appendix>
|
||||||
<title>Troubleshooting</title>
|
<title>Troubleshooting</title>
|
||||||
|
|
||||||
<sect1>
|
|
||||||
<title>Database logfile removal</title>
|
|
||||||
|
|
||||||
<para>
|
<para>
|
||||||
Every time a Nix database transaction takes place, Nix writes a record of
|
(Nothing.)
|
||||||
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>
|
</para>
|
||||||
|
|
||||||
<screen>
|
|
||||||
$ rm `db_archive -a -h <replaceable>prefix</replaceable>/var/nix/db`</screen>
|
|
||||||
|
|
||||||
</sect1>
|
|
||||||
|
|
||||||
</appendix>
|
</appendix>
|
||||||
|
|
||||||
<!--
|
<!--
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue