## Summary
There are a few behavior changes in here:
- We now enforce `--require-hashes` for editables, like pip. So if you
use `--require-hashes` with an editable requirement, we'll reject it. I
could change this if it seems off.
- We now treat source tree requirements, editable or not (e.g., both `-e
./black` and `./black`) as if `--refresh` is always enabled. This
doesn't mean that we _always_ rebuild them; but if you pass
`--reinstall`, then yes, we always rebuild them. I think this is an
improvement and is close to how editables work today.
Closes#3844.
Closes#2695.
## Summary
We actually _already_ ignore these (preferences only apply to versions,
not URLs), it just happens later on. This PR thus just avoids crashing.
The behavior is unchanged.
Closes#3822.
## Summary
Related to https://github.com/astral-sh/uv/issues/3818. We should
_always_ include the package name if we know it's not a file path, even
if it starts with an environment variable.
## Summary
We now show yanks as part of the resolution diagnostics, so they now
appear for `sync`, `install`, `compile`, and any other operations.
Further, they'll also appear for cached packages (but not packages that
are _already_ installed).
Closes https://github.com/astral-sh/uv/issues/3768.
Closes#3766.
## Summary
This PR falls back to writing an unnamed requirement if it appears to be
a relative URL. pip is way more flexible when providing an unnamed
requirement than when providing a PEP 508 requirement. For example,
_only_ this works:
```
black @ file:///Users/crmarsh/workspace/uv/scripts/packages/black_editable
```
Any other form will fail.
Meanwhile, _all_ of these work:
```
file:///Users/crmarsh/workspace/uv/scripts/packages/black_editable
scripts/packages/black_editable
./scripts/packages/black_editable
file:./scripts/packages/black_editable
file:scripts/packages/black_editable
```
Closes https://github.com/astral-sh/uv/issues/3180.