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Bo-Yi Wu e44f849dcc Add execute npm arg if node.js version greater than or equal 0.6.3

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

2011-11-29 13:04:59 +08:00

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My own flavour of node binary management, no subshells, no profile setup, no convoluted api, just simple.

Installation

$ npm install -g n

$ make install

Installing Binaries

Install a few nodes ("v" is optional), the version given becomes the active node binary once installation is complete.

$ n 0.2.6
$ n v0.3.3

List installed binaries:

$ n

  0.2.5
ο 0.2.6
  0.3.3

Pass some config flags to ./configure:

$ n 0.2.6 --debug

List installed binaries, config flags are shown:

  0.2.3
ο 0.2.6 --debug
  0.3.4
  0.3.5

Use or install the latest official release:

$ n latest

Removing Binaries

Remove some versions:

$ n rm 0.2.4 v0.3.0

Instead of using rm we can simply use -:

$ n - 0.2.4

Binary Usage

When running multiple versions of node, we can target them directly by asking n for the binary path:

$ n bin 0.3.3
/usr/local/n/versions/0.3.3/bin/node

Execute a script with 0.3.3 regardless of the active version:

$ n use 0.3.3 some.js

with flags:

$ n as 0.3.3 --debug some.js

Execute npm with 0.6.3 regardless of the active version:

$ n npm 0.6.3 install coffee-script
$ n npm 0.6.3 list

Usage

Output from n --help:

 Usage: n [options] [COMMAND] [config]

 Commands:

   n                           Output versions installed
   n latest [config ...]       Install or activate the latest node release
   n <version> [config ...]    Install and/or use node <version>
   n use <version> [args ...]  Execute node <version> with [args ...]
   n npm <version> [args ...]  Execute npm <version> with [args ...]
   n bin <version>             Output bin path for <version>
   n rm <version ...>          Remove the given version(s)
   n --latest                  Output the latest node version available
   n ls                        Output the versions of node available

 Options:

   -V, --version   Output current version of n
   -h, --help      Display help information

 Aliases:

   -       rm
   which   bin
   use     as

Details

n by default installs node to /usr/local/n/versions, from which it can see what you have currently installed, and activate previously installed versions of node when n <version> is invoked again.

Activated nodes are then installed to the prefix /usr/local, which of course may be altered via the N_PREFIX environment variable.

To alter where n operates simply export N_PREFIX to whatever you prefer.

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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