uv: use for CI and releasing main package

.ci/run

@@ -11,6 +11,8 @@ if ! command -v sudo; then
     }
 fi
 
+# --parallel-live to show outputs while it's running
+tox_cmd='run-parallel --parallel-live'
 if [ -n "${CI-}" ]; then
     # install OS specific stuff here
     case "$OSTYPE" in
@@ -20,7 +22,8 @@ if [ -n "${CI-}" ]; then
         ;;
     cygwin* | msys* | win*)
         # windows
-        :
+        # ugh. parallel stuff seems super flaky under windows, some random failures, "file used by other process" and crap like that
+        tox_cmd='run'
         ;;
     *)
         # must be linux?
@@ -29,12 +32,5 @@ if [ -n "${CI-}" ]; then
     esac
 fi
 
-
-PY_BIN="python3"
-# some systems might have python pointing to python3
-if ! command -v python3 &> /dev/null; then
-    PY_BIN="python"
-fi
-
-"$PY_BIN" -m pip install --user tox
-"$PY_BIN" -m tox --parallel --parallel-live "$@"
+# NOTE: expects uv installed
+uv tool run --with tox-uv tox $tox_cmd "$@"

.github/workflows/main.yml

@@ -38,6 +38,8 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+
+    - uses: astral-sh/setup-uv@v5
 
     - uses: actions/checkout@v4
       with:
@@ -87,6 +89,4 @@ jobs:
       # always deploy tags to release pypi
       # NOTE: release tags are guarded by on: push: tags on the top
       if: github.event_name != 'pull_request' && startsWith(github.event.ref, 'refs/tags')
-      env:
-        TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
-      run: pip3 install --user --upgrade build twine && .ci/release
+      run: .ci/release-uv

tox.ini

@@ -18,9 +18,7 @@ passenv =
     MYPY_CACHE_DIR
     RUFF_CACHE_DIR
 usedevelop = true  # for some reason tox seems to ignore "-e ." in deps section??
-# note: --use-pep517 here is necessary for tox --parallel flag to work properly
-# otherwise it seems that it tries to modify .eggs dir in parallel and it fails
-install_command = {envpython} -m pip install --use-pep517 {opts} {packages}
+uv_seed = true  # seems necessary so uv creates separate venvs per tox env?
 
 
 [testenv:ruff]