| Title | Hosting repodata.json and packages separately by adding a base_url property. |
| Status | Draft |
| Author(s) | Daniel Holth <dholth@anaconda.com> |
| Created | Aug 24, 2023 |
| Updated | Jan 22, 2024 |
| Discussion | #61 |
| Implementation |
Conda packages need to be stored in the same directory as repodata.json.
This can be inconvenient especially when using alternative repodata.json for
the same set of packages. For example, a user might be interested in installing
packages based on an older snapshot of the index data that points to packages
from the original index. Or a user might want to subset repodata.json based on
policy.
A minimal repodata.json looks like this.
{"info": {"subdir": "linux-64"},
"packages": {},
"packages.conda": {"some-package-filename.conda":{...}},
"removed": [],
"repodata_version": 1}
Add base_url to the info object. Increment repodata_version.
{"info": {"subdir": "...", "base_url":"https://repo.anaconda.com/repo/main/linux-64/"},
"packages": {},
"packages.conda": {"some-package-filename.conda":{...}},
"removed": [],
"repodata_version": 2}
Prepend base_url to the package filename when composing a download URL for a package.
For the example above the resulting download URL would be https://repo.anaconda.com/repo/main/linux-64/some-package.conda.
base_url can be an absolute or a relative URL.
In the absence of base_url, packages are loaded relative to the
repodata.json. Index data without the new base_url will continue to have
"repodata_version": 1, but index data including base_url will have
"repodata_version": 2.
All CEPs are explicitly CC0 1.0 Universal.