Docomo

Docomo is a node script for installing python packages/dependencies with a single command. Accepts file name (.json) as a command-line argument, and installs all the dependencies with their versions mentioned in the file. Additionally, installations are timed, if any dependency is taking time beyond max_limit its child process is aborted.

Environment Setup

Creating the virtual environment isolated from system site directories. This is an optional step but highly suggested to follow before running the script.

# Create a virtual environment
python3 -m venv env

# Activate environment
source env/bin/activate

Usage

# All dependencies installed successfully
> node docomo.js example1.json

Installing beautifulsoup4==4.4.1.......
Installing boto==2.48.0.......
Installing bz2file==0.98.......
Installing requests==2.18.3.......
Installation of boto succeded
Installation of beautifulsoup4 succeded
Installation of bz2file succeded
Installation of requests succeded

Successfully installed all dependencies

_______________________________________________________________________________________________

# Installation fails for one of the dependencies.
> node docomo.js example2.json

Installing request==2.18.3.......
Installing beautifulsoup4==4.4.1.......
Installing boto==2.48.0.......
Installing bz2file==0.98.......
Installing numpy==1.13.1.......
Installation of bz2file succeded
Installation of boto succeded
Installation of beautifulsoup4 succeded
Installation of request failed
Time exceeded for numpy

Failed to install: request, numpy

_______________________________________________________________________________________________

# Timeout for one of the dependencies.
> node docomo.js example3.json

Installing beautifulsoup4==4.4.1.......
Installing boto==2.48.0.......
Installing bz2file==0.98.......
Installing numpy==1.13.1.......
Installing requests==2.18.3.......
Installation of beautifulsoup4 succeded
Installation of bz2file succeded
Installation of boto succeded
Installation of requests succeded
Time exceeded for numpy

Failed to install: numpy

Examples

# example1.json

{
  "Dependencies": {
    "beautifulsoup4": "4.4.1",
    "boto": "2.48.0",
    "bz2file": "0.98",
    "requests": "2.18.3"
  }
}

_______________________________________________________________________________________________

# example2.json

{
  "Dependencies": {
    "request": "2.18.3",
    "beautifulsoup4": "4.4.1",
    "boto": "2.48.0",
    "bz2file": "0.98",
    "numpy": "1.13.1"
  }
}

_______________________________________________________________________________________________

# example3.json

{
  "Dependencies": {
    "beautifulsoup4": "4.4.1",
    "boto": "2.48.0",
    "bz2file": "0.98",
    "numpy": "1.13.1",
    "requests": "2.18.3"
  }
}

Contribution

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Author