diff options
Diffstat (limited to 'doc/manual')
| -rw-r--r-- | doc/manual/nix-env.xml | 200 |
1 files changed, 100 insertions, 100 deletions
diff --git a/doc/manual/nix-env.xml b/doc/manual/nix-env.xml index 403ab267827d..a6b596408642 100644 --- a/doc/manual/nix-env.xml +++ b/doc/manual/nix-env.xml @@ -2,7 +2,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude" xml:id="sec-nix-env"> - + <refmeta> <refentrytitle>nix-env</refentrytitle> <manvolnum>1</manvolnum> @@ -60,7 +60,7 @@ environments.</para> <para><command>nix-env</command> takes exactly one <emphasis>operation</emphasis> flag which indicates the subcommand to be performed. These are documented below.</para> - + </refsection> @@ -78,19 +78,19 @@ linkend="sec-common-options" />.</para> <varlistentry><term><option>--file</option></term> <term><option>-f</option></term> - + <listitem><para>Specifies the Nix expression (designated below as the <emphasis>active Nix expression</emphasis>) used by the <option>--install</option>, <option>--upgrade</option>, and <option>--query --available</option> operations to obtain derivations. The default is <filename>~/.nix-defexpr</filename>.</para></listitem> - + </varlistentry> - + <varlistentry><term><option>--profile</option></term> <term><option>-p</option></term> - + <listitem><para>Specifies the profile to be used by those operations that operate on a profile (designated below as the <emphasis>active profile</emphasis>). A profile is sequence of @@ -98,11 +98,11 @@ linkend="sec-common-options" />.</para> which is the <emphasis>current generation</emphasis>. The default profile is the target of the symbolic link <filename>~/.nix-profile</filename> (see below).</para></listitem> - + </varlistentry> - + <varlistentry><term><option>--dry-run</option></term> - + <listitem><para>For the <option>--install</option>, <option>--upgrade</option>, <option>--uninstall</option>, <option>--switch-generation</option> and @@ -117,23 +117,23 @@ linkend="sec-common-options" />.</para> substitute is available).</para></listitem> </varlistentry> - + <varlistentry><term><option>--system-filter</option> <replaceable>system</replaceable></term> - + <listitem><para>By default, operations such as <option>--query --available</option> only include derivations matching the current platform. This option allows you to use derivations for the specified platform <replaceable>system</replaceable>. The special value <literal>*</literal> causes derivations for any platform to be included.</para></listitem> - + </varlistentry> </variablelist> </refsection> - + <!--######################################################################--> @@ -170,25 +170,25 @@ linkend="sec-common-options" />.</para> this directory.</para> </listitem> - + </varlistentry> <varlistentry><term><filename>~/.nix-profile</filename></term> - + <listitem><para>A symbolic link to the user's current profile. By default, this symlink points to <filename><replaceable>prefix</replaceable>/var/nix/profiles/default</filename>. The <envar>PATH</envar> environment variable should include <filename>~/.nix-profile/bin</filename> for the user environment to be visible to the user.</para></listitem> - + </varlistentry> </variablelist> - + </refsection> - + <!--######################################################################--> @@ -214,7 +214,7 @@ linkend="sec-common-options" />.</para> <refsection><title>Description</title> - + <para>The install operation creates a new user environment, based on the current generation of the active profile, to which a set of store paths described by <replaceable>args</replaceable> is added. The @@ -306,20 +306,20 @@ number of possible ways: <varlistentry><term><option>--preserve-installed</option></term> <term><option>-P</option></term> - + <listitem><para>Do not remove derivations with a name matching one of the derivations being installed. Usually, trying to have two versions of the same package installed in the same generation of a profile will lead to an error in building the generation, due to file name clashes between the two versions. However, this is not the case for all packages.</para></listitem> - + </varlistentry> </variablelist> </refsection> - + <refsection xml:id='refsec-nix-env-install-examples'><title>Examples</title> @@ -327,7 +327,7 @@ number of possible ways: active Nix expression: <screen> -$ nix-env --install gcc-3.3.2 +$ nix-env --install gcc-3.3.2 installing `gcc-3.3.2' uninstalling `gcc-3.1'</screen> @@ -408,15 +408,15 @@ the following paths will be substituted: /nix/store/8zbipvm4gp9jfqh9nnk1n3bary1a37gs-perl-XML-Parser-2.34 /nix/store/b8a2bg7gnyvvvjjibp4axg9x1hzkw36c-mono-1.1.4 <replaceable>...</replaceable></screen> - + </para> </refsection> - + </refsection> - + <!--######################################################################--> <refsection xml:id="rsec-nix-env-upgrade"><title>Operation <option>--upgrade</option></title> @@ -442,7 +442,7 @@ the following paths will be substituted: </refsection> <refsection><title>Description</title> - + <para>The upgrade operation creates a new user environment, based on the current generation of the active profile, in which all store paths are replaced for which there are newer versions in the set of paths @@ -459,47 +459,47 @@ the same symbolic name, only the one with the highest version is installed.</para> </refsection> - + <refsection><title>Flags</title> <variablelist> <varlistentry><term><option>--lt</option></term> - + <listitem><para>Only upgrade a derivation to newer versions. This is the default.</para></listitem> - + </varlistentry> <varlistentry><term><option>--leq</option></term> - + <listitem><para>In addition to upgrading to newer versions, also “upgrade” to derivations that have the same version. Version are not a unique identification of a derivation, so there may be many derivations that have the same version. This flag may be useful to force “synchronisation” between the installed and available derivations.</para></listitem> - + </varlistentry> <varlistentry><term><option>--eq</option></term> - + <listitem><para><emphasis>Only</emphasis> “upgrade” to derivations that have the same version. This may not seem very useful, but it actually is, e.g., when there is a new release of Nixpkgs and you want to replace installed applications with the same versions built against newer dependencies (to reduce the number of dependencies floating around on your system).</para></listitem> - + </varlistentry> <varlistentry><term><option>--always</option></term> - + <listitem><para>In addition to upgrading to newer versions, also “upgrade” to derivations that have the same or a lower version. I.e., derivations may actually be downgraded depending on what is available in the active Nix expression.</para></listitem> - + </varlistentry> </variablelist> @@ -523,10 +523,10 @@ $ nix-env --upgrade pan $ nix-env -u '*' <lineannotation>(try to upgrade everything)</lineannotation> upgrading `hello-2.1.2' to `hello-2.1.3' -upgrading `mozilla-1.2' to `mozilla-1.4'</screen> +upgrading `mozilla-1.2' to `mozilla-1.4'</screen> </refsection> - + <refsection xml:id="ssec-version-comparisons"><title>Versions</title> <para>The upgrade operation determines whether a derivation @@ -570,14 +570,14 @@ lexicographically (i.e., using case-sensitive string comparison).</para> 2.3a < 2.3c 2.3pre1 < 2.3c 2.3pre1 < 2.3q</screen> - + </para> </refsection> - + </refsection> - + <!--######################################################################--> @@ -596,14 +596,14 @@ lexicographically (i.e., using case-sensitive string comparison).</para> </refsection> <refsection><title>Description</title> - + <para>The uninstall operation creates a new user environment, based on the current generation of the active profile, from which the store paths designated by the symbolic names <replaceable>names</replaceable> are removed.</para> </refsection> - + <refsection><title>Examples</title> <screen> @@ -611,11 +611,11 @@ $ nix-env --uninstall gcc $ nix-env -e '*' <lineannotation>(remove everything)</lineannotation></screen> </refsection> - + </refsection> - + <!--######################################################################--> <refsection xml:id="rsec-nix-env-set-flag"><title>Operation <option>--set-flag</option></title> @@ -632,7 +632,7 @@ $ nix-env -e '*' <lineannotation>(remove everything)</lineannotation></screen> </refsection> <refsection><title>Description</title> - + <para>The <option>--set-flag</option> operation allows meta attributes of installed packages to be modified. There are several attributes that can be usefully modified, because they affect the behaviour of @@ -670,7 +670,7 @@ script: </para> </refsection> - + <refsection><title>Examples</title> <para>To prevent the currently installed Firefox from being upgraded: @@ -716,13 +716,13 @@ $ nix-env --set-flag priority 10 gcc</screen> </para> </refsection> - + </refsection> - + <!--######################################################################--> - + <refsection><title>Operation <option>--query</option></title> <refsection><title>Synopsis</title> @@ -738,9 +738,9 @@ $ nix-env --set-flag priority 10 gcc</screen> <arg choice='plain'><option>--available</option></arg> <arg choice='plain'><option>-a</option></arg> </group> - + <sbr /> - + <arg> <group choice='req'> <arg choice='plain'><option>--status</option></arg> @@ -785,7 +785,7 @@ $ nix-env --set-flag priority 10 gcc</screen> </arg> <sbr /> - + <arg choice='plain' rep='repeat'><replaceable>names</replaceable></arg> </cmdsynopsis> @@ -793,7 +793,7 @@ $ nix-env --set-flag priority 10 gcc</screen> <refsection><title>Description</title> - + <para>The query operation displays information about either the store paths that are installed in the current generation of the active profile (<option>--installed</option>), or the derivations that are @@ -817,23 +817,23 @@ operates.</para> <variablelist> <varlistentry><term><option>--installed</option></term> - + <listitem><para>The query operates on the store paths that are installed in the current generation of the active profile. This is the default.</para></listitem> - + </varlistentry> <varlistentry><term><option>--available</option></term> <term><option>-a</option></term> - + <listitem><para>The query operates on the derivations that are available in the active Nix expression.</para></listitem> - + </varlistentry> </variablelist> - + </refsection> @@ -874,7 +874,7 @@ user environment elements, etc. --> <varlistentry><term><option>--status</option></term> <term><option>-s</option></term> - + <listitem><para>Print the <emphasis>status</emphasis> of the derivation. The status consists of three characters. The first is <literal>I</literal> or <literal>-</literal>, indicating @@ -888,7 +888,7 @@ user environment elements, etc. --> third is <literal>S</literal> or <literal>-</literal>, indicating whether a substitute is available for the derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--attr-path</option></term> @@ -901,17 +901,17 @@ user environment elements, etc. --> <literal>nix-env --install</literal>.</para></listitem> </varlistentry> - + <varlistentry><term><option>--no-name</option></term> - + <listitem><para>Suppress printing of the <literal>name</literal> attribute of each derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--compare-versions</option> / <option>-c</option></term> - + <listitem><para>Compare installed versions to available versions, or vice versa (if <option>--available</option> is given). This is useful for quickly seeing whether upgrades for installed @@ -926,21 +926,21 @@ user environment elements, etc. --> or installed.</para></listitem> </varlistentry> - + <varlistentry><term><literal>=</literal> <replaceable>version</replaceable></term> <listitem><para>At most the same version of the package is available or installed.</para></listitem> </varlistentry> - + <varlistentry><term><literal>></literal> <replaceable>version</replaceable></term> <listitem><para>Only older versions of the package are available or installed.</para></listitem> </varlistentry> - + <varlistentry><term><literal>- ?</literal></term> <listitem><para>No version of the package is available or @@ -951,45 +951,45 @@ user environment elements, etc. --> </variablelist> </para></listitem> - + </varlistentry> <varlistentry><term><option>--system</option></term> - + <listitem><para>Print the <literal>system</literal> attribute of the derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--drv-path</option></term> - + <listitem><para>Print the path of the store derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--out-path</option></term> - + <listitem><para>Print the output path of the derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--description</option></term> - + <listitem><para>Print a short (one-line) description of the derivation, if available. The description is taken from the <literal>meta.description</literal> attribute of the derivation.</para></listitem> - + </varlistentry> <varlistentry><term><option>--meta</option></term> - + <listitem><para>Print all of the meta-attributes of the derivation. This option is only available with <option>--xml</option>.</para></listitem> - + </varlistentry> </variablelist> @@ -1023,7 +1023,7 @@ IP- ORBit2-2.8.3 <lineannotation>(installed and by definition present)</linea ... <lineannotation>(show available derivations in the Nix expression <!-- !!! <filename>-->foo.nix<!-- </filename> -->)</lineannotation> -$ nix-env -f ./foo.nix -qa '*' +$ nix-env -f ./foo.nix -qa '*' foo-1.2.3 $ nix-env -qc '*' <lineannotation>(compare installed versions to what’s available)</lineannotation> @@ -1034,7 +1034,7 @@ firefox-1.0.4 < 1.0.7 <lineannotation>(a more recent version is availab <replaceable>...</replaceable> <lineannotation>(show info about a specific package, in XML)</lineannotation> -$ nix-env -qa --xml --description firefox +$ nix-env -qa --xml --description firefox <![CDATA[<?xml version='1.0' encoding='utf-8'?> <items> <item attrPath="0.0.firefoxWrapper" @@ -1045,8 +1045,8 @@ $ nix-env -qa --xml --description firefox </refsection> </refsection> - - + + <!--######################################################################--> @@ -1067,25 +1067,25 @@ $ nix-env -qa --xml --description firefox <refsection><title>Description</title> - + <para>This operation makes <replaceable>path</replaceable> the current profile for the user. That is, the symlink <filename>~/.nix-profile</filename> is made to point to <replaceable>path</replaceable>.</para> </refsection> - + <refsection><title>Examples</title> <screen> $ nix-env -S ~/my-profile</screen> </refsection> - + </refsection> - + <!--######################################################################--> <refsection><title>Operation <option>--list-generations</option></title> @@ -1101,7 +1101,7 @@ $ nix-env -S ~/my-profile</screen> <refsection><title>Description</title> - + <para>This operation print a list of all the currently existing generations for the active profile. These may be switched to using the <option>--switch-generation</option> operation. It also prints @@ -1121,11 +1121,11 @@ $ nix-env --list-generations 98 2004-02-06 16:24:33 (current)</screen> </refsection> - + </refsection> - + <!--######################################################################--> <refsection><title>Operation <option>--delete-generations</option></title> @@ -1142,7 +1142,7 @@ $ nix-env --list-generations <refsection><title>Description</title> - + <para>This operation deletes the specified generations of the current profile. The generations can be a list of generation numbers, or the special value <literal>old</literal> to delete all non-current @@ -1150,7 +1150,7 @@ generations. Periodically deleting old generations is important to make garbage collection effective.</para> </refsection> - + <refsection><title>Examples</title> <screen> @@ -1159,11 +1159,11 @@ $ nix-env --delete-generations 3 4 8 $ nix-env -p other_profile --delete-generations old</screen> </refsection> - + </refsection> - + <!--######################################################################--> <refsection><title>Operation <option>--switch-generation</option></title> @@ -1183,7 +1183,7 @@ $ nix-env -p other_profile --delete-generations old</screen> <refsection><title>Description</title> - + <para>This operation makes generation number <replaceable>generation</replaceable> the current generation of the active profile. That is, if the @@ -1207,11 +1207,11 @@ $ nix-env -G 42 switching from generation 50 to 42</screen> </refsection> - + </refsection> - + <!--######################################################################--> <refsection><title>Operation <option>--rollback</option></title> @@ -1226,7 +1226,7 @@ switching from generation 50 to 42</screen> </refsection> <refsection><title>Description</title> - + <para>This operation switches to the “previous” generation of the active profile, that is, the highest numbered generation lower than the current generation, if it exists. It is just a convenience @@ -1246,9 +1246,9 @@ $ nix-env --rolback error: no generation older than the current (91) exists</screen> </refsection> - + </refsection> - + </refentry> |