`mergyaml`

A command line tool to deep merge 1 to many yaml files and command line string representations of a dict. The merged result can be written to one of the input files or a new file.

Install

Requirement: Python 2.7

pip install git+https://github.com/erkolson/mergeyaml

Usage

Usage: mergeyaml [OPTIONS]

Options:
  --version              Show the version and exit.
  -i, --input FILENAME   An input yaml file to merge.
  -f, --file FILENAME    A file to merge, also used to write output.
  -o, --output FILENAME  An output file to use for writing merged yaml.
  --set TEXT             A string representation of a dict to merge.
  --help                 Show this message and exit.

Given test.yaml

web:
  replicas: 1
  image:
    tag: 1.0.3
    repository: erikolson/env-test

And test2.yaml

web:
  image:
    repository: erikolson/env-test-error

Update a single value

Read a file, merge in a single dict string, write back to same file.

mergeyaml --file test.yaml --set web.images.tag=1.0.4

test.yaml becomes:

web:
  replicas: 1
  image:
    tag: 1.0.4
    repository: erikolson/env-test

Merge from several sources

Example merging two files and a dict string, output to a different file.

mergeyaml --input test.yaml --input test2.yaml --set web.image.tag=1.0.4 --output=merged.yaml

Produces, merged.yaml:

web:
  replicas: 1
  image:
    tag: 1.0.4
    repository: erikolson/env-test-error