lock: use relativate paths for directories

Author: sbidoul

Diff for: src/pip/_internal/commands/lock.py

@@ -1,5 +1,6 @@
 import sys
 from optparse import Values
+from pathlib import Path
 from typing import List
 
 from pip._internal.cache import WheelCache
@@ -131,7 +132,7 @@ def run(self, options: Values, args: List[str]) -> int:
         requirement_set = resolver.resolve(reqs, check_supported_wheels=True)
 
         pyproject_lock = Pylock.from_install_requirements(
-            requirement_set.requirements.values()
+            requirement_set.requirements.values(), base_dir=Path.cwd()
         )
         sys.stdout.write(pyproject_lock.as_toml())
 

Diff for: src/pip/_internal/models/pylock.py

@@ -1,5 +1,6 @@
 import dataclasses
 from dataclasses import dataclass
+from pathlib import Path
 from typing import Any, Dict, Iterable, List, Literal, Optional, Tuple
 
 import tomli_w
@@ -80,7 +81,7 @@ class Package:
     # (not supported) tool
 
     @classmethod
-    def from_install_requirement(cls, ireq: InstallRequirement) -> Self:
+    def from_install_requirement(cls, ireq: InstallRequirement, base_dir: Path) -> Self:
         assert ireq.name
         dist = ireq.get_dist()
         download_info = ireq.download_info
@@ -98,7 +99,11 @@ def from_install_requirement(cls, ireq: InstallRequirement) -> Self:
                 )
             elif isinstance(download_info.info, DirInfo):
                 package.directory = PackageDirectory(
-                    path=url_to_path(download_info.url),
+                    path=(
+                        Path(url_to_path(download_info.url))
+                        .relative_to(base_dir, walk_up=True)
+                        .as_posix()
+                    ),
                     editable=(
                         download_info.info.editable
                         if download_info.info.editable
@@ -157,12 +162,12 @@ def as_toml(self) -> str:
 
     @classmethod
     def from_install_requirements(
-        cls, install_requirements: Iterable[InstallRequirement]
+        cls, install_requirements: Iterable[InstallRequirement], base_dir: Path
     ) -> Self:
         return cls(
             packages=sorted(
                 (
-                    Package.from_install_requirement(ireq)
+                    Package.from_install_requirement(ireq, base_dir)
                     for ireq in install_requirements
                 ),
                 key=lambda p: p.name,