Command-line program to union yaml-files

The command-line program yaml-union unions yaml-files recursively. When a key appears in multiple files, the values will be overridden with the order given on the command-line. If both values are hashes, the overrides will be done recursively.

The program could be useful in conjunction with pandoc when passing in meta-data from external files.

e.g.

yaml-union -d meta1.yaml meta2.yaml | pandoc text.md --template tmpl.html

Installation

git clone https://github.com/michelk/yaml-union.hs
cd yaml-unions.hs
stack install

Todo

• Optional define yaml-entries on the command-line eg yaml-union -V blue=blau col.yaml