uv lock collapses relative paths to editable builds in monorepo, breaks uv sync

[leddy231]

Hi there! Excited to move our monorepo from poetry to uv.

There seems to be an issue with relative paths for editable installs in the lockfiles.
Using the following demo structure:

root
├-libs
│  ├-liba
│  └-libb
└-projects
   └-projecta

liba, libb, and projecta created with uv init

libb depends on liba with an editable install

dependencies = [
    "liba"
]

[tool.uv.sources]
liba = { path = "../../libs/liba", editable = true }

When locking libb with uv lock the path is resolved correctly, but also collapsed in the lockfile

[[package]]
name = "liba"
version = "0.1.0"
source = { editable = "../liba" }

This works fine since the path it correct.

However this does not work for projecta, which depends on libb:

dependencies = [
    "libb"
]

[tool.uv.sources]
libb = { path = "../../libs/libb", editable = true }

uv lock produces this lockfile:

version = 1
requires-python = ">=3.12"

[[package]]
name = "liba"
version = "0.1.0"
source = { editable = "../liba" }

[[package]]
name = "libb"
version = "0.1.0"
source = { editable = "../../libs/libb" }
dependencies = [
    { name = "liba" },
]

[package.metadata]
requires-dist = [{ name = "liba", editable = "../liba" }]

[[package]]
name = "projecta"
version = "0.1.0"
source = { editable = "." }
dependencies = [
    { name = "libb" },
]

[package.metadata]
requires-dist = [{ name = "libb", editable = "../../libs/libb" }]

Where the collapsed relative path is still used for liba, which no longer works.
This makes uv sync fail:

error: Failed to determine installation plan
  Caused by: Distribution not found at: file:///home/martin/uv_monorepo_bug/projects/liba

[charliermarsh]

Thanks, I'll take a look!

[charliermarsh]

Agree this is a bug, just reproduced.

[charliermarsh]

@konstin -- Do you mind taking a look at this in the morning?