You can use this extension without any dependency.
VS Code is only required.
Extension Settings
perl-insert-package.replaceRules
An array representing replace rules from file path to Perl package name.
Each rule consists of two or three parameters:
before
A regular expression of target Perl file path.
{{name}} is a placeholder of Perl file name that will be converted into package name.
eg: "^lib/{{name}}\\.pm"
after
A conversion destination from file path to package name.
{{package}} is a placeholder of package name, that is, {{name}} whose separators are replaced into ::.
eg: "{{package}}"
separator
A delimiter that is converted to ::. If omitted, default value / is used.
perl-insert-package.packageNameCompletion.enabled
Whether package name completion is enabled. Default value is false (disabled).
]