cpanminus
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| cpanminus | |
|---|---|
| Name | cpanminus |
| Author | App::cpanminus (Rickard "rjbs" Schermer etc.) |
| Released | 2010 |
| Programming language | Perl |
| Operating system | Cross-platform |
| License | Artistic License 2.0 |
cpanminus
cpanminus is a lightweight command-line client for the Comprehensive Perl Archive Network, created to simplify installation of Perl modules and distributions. It was developed as an alternative to heavier tools, aiming for minimal dependencies and straightforward automation on environments ranging from workstations to continuous integration servers. The project intersects with multiple nodes of the Perl ecosystem, including CPAN Testers, Perl 5, MetaCPAN, and distributions used by organizations like Debian, Fedora, Red Hat, SUSE, and FreeBSD.
Overview
cpanminus targets streamlined module installation for Perl 5 programmers, system administrators, and DevOps engineers who otherwise might use CPAN, CPANPLUS, or PAUSE. It is connected through the Perl community to authors such as Larry Wall, Damian Conway, and Randal L. Schwartz, and projects like Perlbrew, Plack, Mojolicious, Catalyst, Dancer, DBIx::Class, Moose, and POE. The client interacts with package ecosystems represented by ActiveState, CPAN Testers, MetaCPAN, GitHub, GitLab, Bitbucket, and CPAN mirrors hosted by CPAN::Mini, Mirror::CPAN, and organizations like Amazon Web Services, Google Cloud Platform, Microsoft Azure, and DigitalOcean.
Features and Design
cpanminus emphasizes minimalism, non-interactive operation, and dependency resolution compatible with tools such as Carton, Dist::Zilla, Module::Build, ExtUtils::MakeMaker, Test::Harness, and TAP::Harness. Its design choices echo principles used in projects like BusyBox, Docker, Vagrant, Ansible, Puppet, Chef, SaltStack, and systemd: small footprint, scriptability, and composability. Integration points include Build.PL and Makefile.PL handling, CPAN::Meta, META.json, META.yml, and manifest formats used by PAUSE and CPAN::DistnameInfo. It supports installation into local::lib trees, App::pmuninstall-style workflows, and works alongside Perl installation managers such as perlbrew and plenv.
Installation and Usage
Typical bootstrap methods mirror techniques used by curl|wget installers for projects like Node.js, RubyGems, and Composer: single-file bootstraps, piping to perl, and installation in user space without root via local::lib. Common invocation patterns coexist with toolchains like Git, Subversion, Mercurial, Make, ccache, and Continuous Integration platforms such as Travis CI, Jenkins, GitHub Actions, GitLab CI/CD, CircleCI, and Azure Pipelines. Command-line flags and environment variables are designed to play well with POSIX shells, Bash, Zsh, Dash, PowerShell on Windows, and OpenBSD ksh, enabling use in environments administered by administrators from companies such as IBM, Oracle, Microsoft, and organizations like CERN, NASA, and the Wikimedia Foundation.
Comparison with Other CPAN Clients
Compared to CPAN and CPANPLUS, cpanminus reduces bootstrapping friction similarly to how projects like pip and npm simplified Python and Node.js dependency handling, while differing from package managers like apt, yum, dnf, pacman, and zypper that operate on binary system packages maintained by Debian, Ubuntu, Red Hat, and Arch Linux. Its philosophy is akin to Composer for PHP, Bundler for Ruby, and Cargo for Rust, focusing on developer workflows rather than system package policy used by Fedora, SUSE, Gentoo, and FreeBSD ports. In large organizations such as Google, Facebook, Amazon, Twitter, and LinkedIn, lightweight installers are preferred in build systems alongside Bazel, Buck, CMake, Meson, and Ninja.
Development and Maintenance
Development has been community-driven with contributions and issue tracking patterns familiar from GitHub, GitLab, CPAN RT, and Bugzilla projects maintained by the Perl Foundation, the Perl 5 Porters, and volunteers including authors active in conferences like YAPC, The Perl Conference, OSCON, FOSDEM, DebConf, and LISA. Maintenance practices reflect continuous integration and release strategies used by projects like Perl 5, CPAN Testers, CPAN Minus distributions, and tools such as Dist::Zilla and Module::Install. Stakeholders include maintainers from enterprise distributions—Debian Perl Group, Fedora Perl SIG, OpenSUSE Perl Team—and community bodies like The Perl Foundation, O’Reilly authors, and academic groups at MIT, Stanford, and ETH Zurich.
Reception and Adoption
cpanminus has seen adoption among individual developers, open-source projects, and infrastructure teams at organizations such as Mozilla, Wikimedia, Canonical, Red Hat, and SUSE, mirroring acceptance trajectories of tooling like Git, Docker, Vagrant, and Ansible. It is recommended in tutorials, books, and conference talks alongside resources by O’Reilly, Apress, No Starch Press authors, and educators at universities such as Harvard, UC Berkeley, and Carnegie Mellon. Adoption metrics intersect with CPAN download statistics, MetaCPAN analytics, and CI usage reports from Travis CI, GitHub Actions, and GitLab, reflecting continued relevance within the Perl ecosystem despite competition from system package managers and language-specific tooling.