Is it possible to format the cache json when it's written to disk

[zyxue]

What's the problem this feature will solve?

I'm considering committing the cache json (e.g. depcache-cp3.8.json) via git in a monorepo environment, so that everyone has the same cache.

People may have diff legacy caches e.g. due to bug like #1511.

Formatted json instead of putting everything in a single line makes it easier to read the diff, is that possible currently?

[zyxue]

given

pip-tools/piptools/cache.py

Lines 111 to 112 in 88daf21

	with open(self._cache_file, "w", encoding="utf-8") as f:
	json.dump(doc, f, sort_keys=True)

, probably not supported currently

[atugushev]

The dependency cache used by the legacy resolver will be deprecated and removed soon. I'd suggest using pip-compile --backtracking resolver instead. See #1659.

[zyxue]

@atugushev you mean --resolver backtracking right?

I tried it out, and appears to be significantly slower, and it doesn't update the cache, does it mean backtracking doesn't use cache anymore?

[atugushev]

@zyxue

The dependency cache (piptools/cache.py) is the implementation details of the legacy resolver written in pip-tools. The backtracking resolver is a wrapper around pip's backtracking resolver so everything now works under the hood of pip (resolving/caching/etc).