PYTHON-5862 Remove usage of uv lock file

.evergreen/combine-coverage.sh

@@ -5,6 +5,10 @@
 
 set -eu
 
+# Export before sourcing so that any uv sync inside setup-dev-env.sh uses them.
+export UV_NO_LOCK=1
+export UV_EXCLUDE_NEWER="${UV_EXCLUDE_NEWER:-$(python3 -c 'from datetime import datetime, timedelta, timezone; print((datetime.now(timezone.utc) - timedelta(days=7)).strftime("%Y-%m-%dT%H:%M:%SZ"))')}"
+
 # Set up the virtual env.
 . .evergreen/scripts/setup-dev-env.sh
 uv sync --group coverage

.evergreen/run-tests.sh

@@ -27,10 +27,6 @@ else
 fi
 
 cleanup_tests() {
-  # Avoid leaving the lock file in a changed state when we change the resolution type.
-  if [ -n "${TEST_MIN_DEPS:-}" ]; then
-    git checkout uv.lock || true
-  fi
   cd $PREV_DIR
 }
 

.evergreen/scripts/setup-dev-env.sh

@@ -22,6 +22,9 @@ fi
 # Ensure dependencies are installed.
 bash $HERE/install-dependencies.sh
 
+# Never create or update uv.lock, in CI or locally.
+export UV_NO_LOCK=1
+
 # Only run the next part if not running on CI.
 if [ -z "${CI:-}" ]; then
   # Add the default install path to the path if needed.

.evergreen/scripts/setup_tests.py

@@ -5,6 +5,7 @@
 import platform
 import shutil
 import stat
+from datetime import datetime, timedelta, timezone
 from pathlib import Path
 from urllib import request
 
@@ -169,6 +170,11 @@ def handle_test_env() -> None:
 
     write_env("PIP_QUIET")  # Quiet by default.
     write_env("PIP_PREFER_BINARY")  # Prefer binary dists by default.
+    write_env("UV_NO_LOCK", "1")
+    exclude_newer = os.environ.get("UV_EXCLUDE_NEWER") or (
+        datetime.now(timezone.utc) - timedelta(days=7)
+    ).strftime("%Y-%m-%dT%H:%M:%SZ")
+    write_env("UV_EXCLUDE_NEWER", exclude_newer)
 
     # Set an environment variable for the test name and sub test name.
     write_env(f"TEST_{test_name.upper()}")

.github/workflows/test-python.yml

@@ -14,6 +14,9 @@ defaults:
   run:
     shell: bash -eux {0}
 
+env:
+  UV_NO_LOCK: "1"
+
 permissions:
   contents: read
 
@@ -30,6 +33,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - name: Install Python dependencies
@@ -72,6 +77,8 @@ jobs:
         with:
           enable-cache: true
           python-version: ${{ matrix.python-version }}
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - id: setup-mongodb
         uses: mongodb-labs/drivers-evergreen-tools@master
         with:
@@ -94,6 +101,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - id: setup-mongodb
         uses: mongodb-labs/drivers-evergreen-tools@master
         with:
@@ -122,6 +131,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - id: setup-mongodb
@@ -147,6 +158,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - name: Install dependencies
@@ -166,6 +179,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - name: Install dependencies
@@ -190,6 +205,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "${{matrix.python}}"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - name: Install dependencies
@@ -211,6 +228,8 @@ jobs:
         with:
           enable-cache: true
           python-version: "3.10"
+      - name: Set UV_EXCLUDE_NEWER
+        run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
       - name: Install just
         run: uv tool install rust-just
       - name: Install dependencies
@@ -300,6 +319,8 @@ jobs:
           uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
           with:
             python-version: "3.9"
+        - name: Set UV_EXCLUDE_NEWER
+          run: echo "UV_EXCLUDE_NEWER=${UV_EXCLUDE_NEWER:-$(date -u -d '7 days ago' '+%Y-%m-%dT%H:%M:%SZ')}" >> $GITHUB_ENV
         - id: setup-mongodb
           uses: mongodb-labs/drivers-evergreen-tools@master
           with:

.gitignore

@@ -44,3 +44,4 @@ xunit-results/
 coverage.xml
 server.log
 .coverage
+uv.lock

.pre-commit-config.yaml

@@ -122,14 +122,3 @@ repos:
     language: python
     require_serial: true
     additional_dependencies: ["shrub.py>=3.10.0", "pyyaml>=6.0.2"]
-
-  - id: uv-lock
-    name: uv-lock
-    entry: uv lock
-    language: python
-    require_serial: true
-    files: ^(uv\.lock|pyproject\.toml|requirements.txt|requirements/.*\.txt)$
-    pass_filenames: false
-    fail_fast: true
-    additional_dependencies:
-      - "uv>=0.8.4"

CONTRIBUTING.md

@@ -574,7 +574,9 @@ From the spawn host or Ubuntu image, do the following:
 ## Dependabot updates
 
 Dependabot will raise PRs at most once per week, grouped by GitHub Actions updates and Python requirement
-file updates.  We have a pre-commit hook that will update the `uv.lock` file when requirements change.
-To update the lock file on a failing PR, you can use a method like `gh pr checkout <pr number>`, then run
-`just lint uv-lock` to update the lock file, and then push the changes.  If a typing dependency has changed,
-also run `just typing` and handle any new findings.
+file updates.  To handle a failing Dependabot PR:
+
+1. Check out the PR: `gh pr checkout <pr number>`
+2. Re-run the linters to pick up any formatting changes: `just lint`
+3. If a typing dependency changed, run `just typing` and fix any new errors.
+4. Commit the changes and push: `git add -u && git commit -m "Address linter/typing issues" && git push`