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Diffstat (limited to 'doc/manual/nix-shell.xml')
| -rw-r--r-- | doc/manual/nix-shell.xml | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/manual/nix-shell.xml b/doc/manual/nix-shell.xml index e57c726f5394..4b369662e2af 100644 --- a/doc/manual/nix-shell.xml +++ b/doc/manual/nix-shell.xml @@ -51,6 +51,22 @@ derivation for development.</para> <filename>shell.nix</filename> if it exists, and <filename>default.nix</filename> otherwise.</para> +<para>If the derivation defines the variable +<varname>shellHook</varname>, it will be evaluated after +<literal>$stdenv/setup</literal> has been sourced. Since this hook is +not executed by regular Nix builds, it allows you to perform +initialisation specific to <command>nix-shell</command>. For example, +the derivation attribute + +<programlisting> +shellHook = + '' + echo "Hello shell!" + ''; +</programlisting> + +will cause <command>nix-shell</command> to print <literal>Hello shell!</literal>.</para> + </refsection> |