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| author | Eelco Dolstra <edolstra@gmail.com> | 2018-09-19T18·08+0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-09-19T18·08+0200 |
| commit | 43b7eebfabe9bf1b0680391c0a311676c4cdb2b9 (patch) | |
| tree | a98acae0d3b0662a1e4acf3482590f0e09e58d0d | |
| parent | 2ca6ef0fec150209994814fada3533fbd0f9f764 (diff) | |
| parent | be9e356e614a95e7ab839584c9d95838be1d0002 (diff) | |
Merge pull request #2433 from grahamc/doc-shebang-quotes
Document that nix-shell's shebang requires double quotes for expressions
| -rw-r--r-- | doc/manual/command-ref/nix-shell.xml | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/doc/manual/command-ref/nix-shell.xml b/doc/manual/command-ref/nix-shell.xml index 5c44c4a8f446..cb443c888d3d 100644 --- a/doc/manual/command-ref/nix-shell.xml +++ b/doc/manual/command-ref/nix-shell.xml @@ -317,13 +317,28 @@ while (my $token = $p->get_tag("a")) { </para> -<para>Finally, the following Haskell script uses a specific branch of -Nixpkgs/NixOS (the 14.12 stable branch): +<para>Sometimes you need to pass a simple Nix expression to customize +a package like Terraform: + +<programlisting><![CDATA[ +#! /usr/bin/env nix-shell +#! nix-shell -i bash -p "terraform.withPlugins (plugins: [ plugins.openstack ])" + +terraform apply +]]></programlisting> + +<note><para>You must use double quotes (<literal>"</literal>) when +passing a simple Nix expression in a nix-shell shebang.</para></note> +</para> + +<para>Finally, using the merging of multiple nix-shell shebangs the +following Haskell script uses a specific branch of Nixpkgs/NixOS (the +18.03 stable branch): <programlisting><![CDATA[ #! /usr/bin/env nix-shell #! nix-shell -i runghc -p haskellPackages.ghc haskellPackages.HTTP haskellPackages.tagsoup -#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixos-14.12.tar.gz +#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixos-18.03.tar.gz import Network.HTTP import Text.HTML.TagSoup |