conda-repodata

Ever wanted to modify the repodata.json (or even just look at it) before downloading the packages? This is the tool for you!

Conda-repodata adds the ability to apply transformations to any repodata.json file before downloading the packages. This is useful for things like:

• debugging repodata.json issues
• testing hotfix patches to repodata.json
• any other repodata.json manipulation you can think of!

Installation

Warning

This relies on an unreleased version of conda.

conda install kenodegard::conda-repodata

Usage

View repodata.json

conda repodata --channel pkgs/main --subdir linux-64

Write repodata.json to a file

conda repodata --channel pkgs/main --subdir linux-64 --output path/to/repodata.json

Transform repodata.json

To apply a transformation to the repodata.json file, set the CONDA_TRANSFORMATIONS environment variable to a Python script containing a function called transformation that accepts the parsed repodata object and returns the patched object.

# transformation.py
def transformation(repodata):
    # do something to repodata
    return repodata

CONDA_TRANSFORMATIONS=tranfromation.py conda repodata ...

See example_transformations for additional inspiration.