nodejs_available

Usage:

 nodejs_available(%args) -> [status, msg, result, meta]

Check the availability of Node.js.

This is a more advanced alternative to nodejs_path(). Will check for "node" or "nodejs" in the PATH, like nodejs_path(). But you can also specify minimum version (and other options in the future). And it will return more details.

Will return status 200 if everything is okay. Actual result will return the path to executable, and result metadata will contain extra result like detected version in "func.version".

Will return satus 412 if something is wrong. The return message will tell the reason.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

• all => bool

  Find all node.js instead of the first found.

  If this option is set to true, will return an array of paths intead of path.

• min_version => str
• path => str

  Search this instead of PATH environment variable.

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

Return value: (any)

nodejs_path

Usage:

 nodejs_path(%args) -> any

Check the availability of Node.js executable in PATH.

Return the path to executable or undef if none is available. Node.js is usually installed as 'node' or 'nodejs'.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

•

all => bool

Find all node.js instead of the first found.

If this option is set to true, will return an array of paths intead of path.

Return value: (any)

system_nodejs

Usage:

 system_nodejs([ \%opts ], @argv)

Will call IPC::System::Options's system(), but with node.js binary as the first argument. Known options:

• harmony_scoping => bool

  If set to 1, will attempt to enable block scoping. This means at least node.js v0.5.10 (where "--harmony_scoping" is first recognized). But "--harmony_scoping" is no longer needed after v2.0.0 and no longer recognized in later versions.

• path => str

  Will be passed to nodejs_available().

Other options will be passed to "IPC::System::Options"'s system().

nodejs_module_path

Usage:

 nodejs_module_path([ \%opts, ] $module) => str|array

Search module in filesystem according to Node.js rule described in <https://nodejs.org/api/modules.html>. $module can be either a relative/absolute path (e.g. "./bip39.js", "../bip39.js", or "/home/foo/bip39.js"), a filename (e.g. "bip39.js"), or a filename with the ".js" removed (e.g. "bip39").

Will return undef if no module is found, or string containing the found path.

Known options:

• parse_package_json => bool (default: 0)

  Not yet implemented.

• cwd => str

  Use this directory instead of using Cwd::get_cwd().

• all => bool

  If set to true, will return an array of all found paths instead of string containing the first found path.