nodeenv 0.4.3

Node.js virtual environment builder

Node.js virtual environment

nodeenv (node.js virtual environment) is a tool to create isolated node.js environments.

It creates an environment that has its own installation directories, that doesn’t share libraries with other node.js virtual environments.

Install

You can install nodeenv with easy_install:

$ sudo easy_install nodeenv

or pip:

$ sudo pip install nodeenv

If you want to work with the latest version of the nodeenv you can install it from the github repository:

$ git clone https://github.com/ekalinin/nodeenv.git
$ ./nodeenv/nodeenv.py --help

Or you can just download raw nodeenv.py and use it:

$ wget https://raw.github.com/ekalinin/nodeenv/master/nodeenv.py
$ python nodeenv.py --version
0.4.0

Dependency

For nodeenv

• make

• curl

• egrep

• sort

• tail

• tar

For node.js

• python

• libssl-dev

Usage

Basic

Install new environment:

$ nodeenv env

Activate new environment:

$ . env/bin/activate

Chek versions of main packages:

(env) $ node -v
v0.4.6

(env) $ npm -v
0.3.18

Deactivate environment:

(env) $ deactivate_node

Advanced

Get available node.js versions:

$ nodeenv --list
0.0.1   0.0.2   0.0.3   0.0.4   0.0.5   0.0.6   0.1.0
0.1.2   0.1.3   0.1.4   0.1.5   0.1.6   0.1.7   0.1.8
0.1.10  0.1.11  0.1.12  0.1.13  0.1.14  0.1.15  0.1.16
0.1.18  0.1.19  0.1.20  0.1.21  0.1.22  0.1.23  0.1.24
0.1.26  0.1.27  0.1.28  0.1.29  0.1.30  0.1.31  0.1.32
0.1.90  0.1.91  0.1.92  0.1.93  0.1.94  0.1.95  0.1.96
0.1.98  0.1.99  0.1.100 0.1.101 0.1.102 0.1.103 0.1.104
0.2.1   0.2.2   0.2.3   0.2.4   0.2.5   0.2.6   0.3.0
0.3.2   0.3.3   0.3.4   0.3.5   0.3.6   0.3.7   0.3.8
0.4.1   0.4.2   0.4.3   0.4.4   0.4.5   0.4.6

Install node.js “0.4.3” without ssl support with 4 parallel commands for compilation and npm.js “0.3.17”:

$ nodeenv --without-ssl --node=0.4.3 --npm=0.3.17 --jobs=4 env-4.3

Saving into the file versions of all installed packages:

$ . env-4.3/bin/activate
(env-4.3)$ npm install express
(env-4.3)$ npm install jade
(env-4.3)$ freeze ../prod-requirements.txt

Create environment copy from requirement file:

$ nodeenv --requirement=../prod-requirements.txt --jobs=4 env-copy

Requirements files are plain text files that contain a list of packages to be installed. These text files allow you to create repeatable installations. Requirements file example:

$ cat ../prod-requirements.txt
connect@1.3.0
express@2.2.2
jade@0.10.4
mime@1.2.1
npm@0.3.17
qs@0.0.7

Alternatives

There are several alternatives that create isolated environments:

• nave - Virtual Environments for Node. Nave stores all environments in one directory ~/.nave. Thus it is not possible to create different environments for one version of node.js. Can not pass additional arguments into configure (for example –without-ssl)

• nvm - Node Version Manager. It is necessarily to do nvm sync for caching available node.js version. Can not pass additional arguments into configure (for example –without-ssl)

• virtualenv Virtual Python Environment builder. For python only.

Nodeenv changelog

Version 0.4.3

• Fixed metavar for --npm

• npm install -g used for npm >=1.0, not noly for latest

Version 0.4.2

• Added README.ru.rst

Version 0.4.1

• Fixed bug in print_node_versions. See pull # 11

• Added deps in README

Version 0.4.0

• Compatibility with virtualenv (renamed deactivate to deactivate_node). See pull # 9, issue # 6

Version 0.3.10

• Fixed bug in url detection for node.js download

Version 0.3.9

• Deleted notify method calls. See pull # 7

• Updated tar url for node.js > 0.5.0. See pull # 8

Version 0.3.8

• Added NODE_PATH variable export (for correct module search after installation via npm)

Version 0.3.7

• Shows command output when error occurs

• Excluded ‘npm’ from freeze list

• Fixed bug with ‘not only letter’ names in freeze list

• Added global installation for npm >= 1.0 (when install soft from requirement file)

Version 0.3.6

• Fixed freeze output command. See request # 5

• Diagnostic message fixed. See pull # 4

Version 0.3.5

• Added option --npm to install certain npm.js version. Request .

• Fixed freeze command for npm >= 1.0.x.

Version 0.3.4

• Fixed problem #2 with new npm installation script. Added --no-npm-clean option. The default to the npm 0.x cleanup.

Version 0.3.3

• Fixed problem #1 with installation from PyPI via easy_install. Added MANIFEST.in file.

Version 0.3.2

• Internal improvements

• Logging refactoring

Version 0.3.1

• Default environment promt is folder name

Version 0.3.0

• Renamed nve to nodeenv