[MacPorts] #53038: nvm @0.32.1: New port submission

[MacPorts]

#53038: nvm @0.32.1: New port submission
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 Reporter:  coditect    |      Owner:
     Type:  submission  |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  nvm
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 I have created a Portfile for NVM, a version manager for Node.  It differs
 from a normal install of NVM in the following ways:

 * NVM and NVM-managed version of Node are stored in `$prefix/lib/nvm`
 instead of `~/.nvm`
 * NVM does not need to be initialized in `~/.profile`.  Instead, a script
 stored at `$prefix/bin/nvm` intercepts calls to `nvm`, and runs `nvm.sh`
 before passing control to the `nvm()` shell function.  This process is
 less efficient, but greatly simplifies the use of NVM with `sudo` and
 multiple user accounts.

 Suggestions and criticisms are greatly appreciated!

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Ticket URL: <https://trac.macports.org/ticket/53038>
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