通过perl脚本安装cpan模块？

Question

我想要一个运行perl脚本时会自动安装所有cpan模块的perl脚本。能帮上忙吗？

Answer 1

The CPAN client is just a Perl module which is wrapped by the command line tool. You therefore directly invoke it from a Perl script.

However, you may require system administrator priveleges to install new modules. One way to circumvent that is to use local::lib , or to ask the user for the necessary privileges. On Unixes, you could refuse to run your script if not run as root. However, that opens up many security issues and should be avoided if possible.

A fairly sane solution would be to require your users to install the cpanm client , and specify your dependencies in a cpanfile . Your users then just have to do cpanm --installdeps /dir/of/your/script .

But if we are already going through all that trouble, you might as well make a proper CPAN distribution. You don't have to upload it to CPAN, but you can distribute the tarball, and have your users install that. This has many advantages: Mature toolchains, automated testing, and wonderful helpers like Dist::Zilla that make creating a distribution a breeze.

Answer 2

从文档中使用CPAN :: Shell ：

CPAN::Shell->install("Acme::Meta");