csvdiff

csvdiff is a command line tool that compares two csv files and reports the comparison summary in stderr and the writes the comparison details to a file.

Running from Nix Development Shell

If you have nix flakes enabled, run:

$ git clone https://github.com/tiiuae/ci-public/
$ cd ci-public/csvdiff
$ nix develop

You can also use nix-shell to enter the development shell:

$ git clone https://github.com/tiiuae/ci-public/
$ cd ci-public/csvdiff
$ nix-shell

From the development shell, you can run csvdiff as follows:

$ csvdiff --help

Running as Nix Flake

csvdiff can be run as a Nix flake from the tiiuae/ci-public repository:

# '--' signifies the end of argument list for `nix`.
# '--help' is the first argument to `csvdiff`
$ nix run github:tiiuae/ci-public?dir=csvdiff#csvdiff -- --help

or from a local repository:

$ git clone https://github.com/tiiuae/ci-public
$ cd ci-public/csvdiff
$ nix run .#csvdiff -- --help

Example Usage

Below example compares left.csv and right.csv example targets:

$ csvdiff tests/resources/left.csv tests/resources/right.csv 
INFO     Comparing 'LEFT_CSV=tests/resources/left.csv' 'RIGHT_CSV=tests/resources/right.csv'
INFO     Number of common rows: 5
WARNING  Number of LEFT_ONLY rows: 1
WARNING  Number of RIGHT_ONLY rows: 1
INFO     Wrote: csvdiff.csv