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authorzimbatm <zimbatm@zimbatm.com>2020-03-30 15:31:14 +0200
committerzimbatm <zimbatm@zimbatm.com>2020-04-14 18:45:06 +0200
commit895516cadf0739dd8359a38d503e0aaf5068dc4b (patch)
tree7ba6876161f27c1dae6cca0922a8b9c0d6b11144 /doc/manual/command-ref/conf-file.xml
parent3abf6d03c611417b309fdedf4323c08e6afbcd9c (diff)
add NIX_USER_CONF_FILES
Motivation: maintain project-level configuration files. Document the whole situation a bit better so that it corresponds to the implementation, and add NIX_USER_CONF_FILES that allows overriding which user files Nix will load during startup.
Diffstat (limited to 'doc/manual/command-ref/conf-file.xml')
-rw-r--r--doc/manual/command-ref/conf-file.xml36
1 files changed, 20 insertions, 16 deletions
diff --git a/doc/manual/command-ref/conf-file.xml b/doc/manual/command-ref/conf-file.xml
index 48dce7c95..1820598e5 100644
--- a/doc/manual/command-ref/conf-file.xml
+++ b/doc/manual/command-ref/conf-file.xml
@@ -19,26 +19,30 @@
<refsection><title>Description</title>
-<para>Nix reads settings from two configuration files:</para>
+<para>By default Nix reads settings from the following places:</para>
+
+<para>The system-wide configuration file
+<filename><replaceable>sysconfdir</replaceable>/nix/nix.conf</filename>
+(i.e. <filename>/etc/nix/nix.conf</filename> on most systems), or
+<filename>$NIX_CONF_DIR/nix.conf</filename> if
+<envar>NIX_CONF_DIR</envar> is set. Values loaded in this file are not forwarded to the Nix daemon. The
+client assumes that the daemon has already loaded them.
+</para>
-<itemizedlist>
+<para>User-specific configuration files:</para>
- <listitem>
- <para>The system-wide configuration file
- <filename><replaceable>sysconfdir</replaceable>/nix/nix.conf</filename>
- (i.e. <filename>/etc/nix/nix.conf</filename> on most systems), or
- <filename>$NIX_CONF_DIR/nix.conf</filename> if
- <envar>NIX_CONF_DIR</envar> is set.</para>
- </listitem>
+<para>
+ If <envar>NIX_USER_CONF_FILES</envar> is set, then each path separated by
+ <literal>:</literal> will be loaded in reverse order.
+</para>
- <listitem>
- <para>The user configuration file
- <filename>$XDG_CONFIG_HOME/nix/nix.conf</filename>, or
- <filename>~/.config/nix/nix.conf</filename> if
- <envar>XDG_CONFIG_HOME</envar> is not set.</para>
- </listitem>
+<para>
+ Otherwise it will look for <filename>nix/nix.conf</filename> files in
+ <envar>XDG_CONFIG_DIRS</envar> and <envar>XDG_CONFIG_HOME</envar>.
-</itemizedlist>
+ The default location is <filename>$HOME/.config/nix.conf</filename> if
+ those environment variables are unset.
+</para>
<para>The configuration files consist of
<literal><replaceable>name</replaceable> =