Vertex
Takes as input the name of a CSV key and a list of CSV files sharing this key. Outputs to stdout a CSV file merging all values in files along the provided key.
NOTE: This utility makes many assumptions about input and output.
- No validation is done on input files (i.e. - they are not checked for existence or well-formed-ness)
- When no value is found for a particular CSV key, the empty string "" is used
- CSV keys and values are not validated in any way
- CSV keys are assumed to single words, underscore-delimited, and/or all lowercase
Installation
Since this gem is not published, you can install locally:
$ git clone http://github.com/sr-ix/vertex vertex
$ cd vertex
$ #rvm gemset create vertex #optional
$ #rvm gemset use vertex #optional
$ bundle install
$ rake install
To verify installation:
$ which vertex
Usage
Check out the help text:
$ vertex --help
Sample usage:
$ #assuming you are in the vertex repo directory
$ vertex --key product_id --files ./examples/products.csv ./examples/ratings.csv ./examples/colors.csv ./examples/flavors.csv > ./examples/all.csv