Perl: Difference between revisions
imported>Nix →Invoking nix-shell on command-line: fix nix-shell commandline example |
Tomodachi94 (talk | contribs) m ryantm link -> canonical Nixpkgs manual |
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==Adding something from CPAN to nixpkgs== | ==Adding something from CPAN to nixpkgs== | ||
# Enter a <tt>nix-shell</tt> that provides the necessary dependencies: <syntaxHighlight lang=shell>nix-shell -p perl perlPackages.CPANPLUS perlPackages.GetoptLongDescriptive perlPackages.LogLog4perl perlPackages.Readonly</syntaxHighlight>. | |||
# Use the <tt>nix-generate-from-cpan.pl</tt> script (see <tt>nixpkgs/maintainers/scripts/</tt>) to generate something appropriate.<br/>Example usage: <syntaxHighlight lang=shell>nix-generate-from-cpan.pl Devel::REPL</syntaxHighlight> | |||
# After reviewing the result from the previous step and making appropriate modifications, add it to <code>pkgs/top-level/perl-packages.nix</code>. Note that some things use <code>buildPerlPackage</code> while some use <code>buildPerlModule</code>. Also note the mostly-followed naming convention as well as the mostly-followed alphabetical ordering. There are plenty of examples in <tt>perl-packages.nix</tt> — use the source, Luke! | |||
# Build and test. | |||
==Wrappers for installed programs== | ==Wrappers for installed programs== | ||
To make perl modules available to a program in your derivation: | To make perl modules available to a program in your derivation: | ||
# Add <code>makeWrapper</code> to <code>nativeBuildInputs</code> | |||
# Add <syntaxhighlight lang="nix"> | |||
postFixup = '' | postFixup = '' | ||
wrapProgram $out/bin/something \ | wrapProgram $out/bin/something \ | ||
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''; | ''; | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Also keep in mind that <code>makePerlPath</code> would not resolve transitive dependencies of Perl packages. Hence if you want to just reference top-level packages, then use <code>makeFullPerlPath</code> which would recursively resolve dependency graph for you. | |||
== See also == | == See also == | ||
* [https://nixos.org/manual/nixpkgs/ | * [https://nixos.org/manual/nixpkgs/stable/#sec-language-perl Nixpkgs Manual - Perl section] | ||
* [https://blog.stigok.com/2020/04/ | * [https://blog.stigok.com/2020/04/16/building-a-custom-perl-package-for-nixos.html Overriding an existing Perl package in NixOS] | ||
[[Category:Languages]] | [[Category:Languages]] | ||