Add repodata.json.zst

[jonashaag]

Conda recently added a zstd compression version of repodata.json: conda/infrastructure#648

Would be great to have it here as well!

[simonbohnen]

I might look into this! Compression seems to be tested here for quetz:

quetz/quetz/tests/test_indexing.py

Line 16 in 6cdf96e

pkgstore = config.get_package_store()

And creation of the repodata files happens here:

quetz/quetz/tasks/indexing.py

Line 211 in 6cdf96e

logger.debug(f"creating indexes for subdir {sdir} of channel {channel_name}")

And this uses the following function to actually write the file, including encrypted versions. Adding zst should probably happen here?

quetz/quetz/utils.py

Line 61 in 6cdf96e

def add_temp_static_file(

[wolfv]

yep, that sounds correct! :)

[iklues17]

I am using version 0.9.2. In proxy mode, the repodata.json.zst file is not updated after initial creation.

[beenje]

I am using version 0.9.2. In proxy mode, the repodata.json.zst file is not updated after initial creation.

Just found the same issue. This is a problem as mamba is using that file by default.

[nicoddemus]

Same problem here.

In proxy mode, the repodata.json.zst file is not updated after initial creation.

Is there any known workaround so that we can tell conda/mamba to ignore the zst repodata file?

[nicoddemus]

@tadeu found a workaround for those interested:

CONDA_REPODATA_USE_ZST=false
CONDA_EXPERIMENTAL=lock