tox: use uv for faster build pipeline

.ci/end2end/scripts/build_and_run_tests.sh

@@ -12,4 +12,6 @@ cp -R -T /promnesia_source /promnesia
 extension/.ci/build
 
 git init  # todo ??? otherwise setuptools-scm fails to detect the version...
-python3 -m tox -e end2end -- "$@"
+
+pip install uv
+python3 -m uv tool run --with=tox-uv tox -e end2end -- "$@"

.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 "${CI-}" ]; then
     # install OS specific stuff here
     # TODO: pyjq is not necessary anymore? will keep CI deps just in case I guess
@@ -25,7 +27,8 @@ if [ -n "${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?
@@ -44,5 +47,9 @@ 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 "$@"
+
+# TODO hmm for some reason installing uv with pip and then running
+# "$PY_BIN" -m uv tool fails with missing setuptools error??
+# just uvx directly works, but it's not present in PATH...
+"$PY_BIN" -m pip install --user pipx
+"$PY_BIN" -m pipx run uv tool run --with=tox-uv tox $tox_cmd "$@"

tox.ini

@@ -25,10 +25,9 @@ passenv =
     # but we want them on CI, so we allow to pass through the variable when we do want to run them
     WITH_BROWSER_TESTS
     # todo ugh this is all so confusing... need to simplify
-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}
+setenv =
+    HPI_MODULE_INSTALL_USE_UV=true
+uv_seed = true  # seems necessary so uv creates separate venvs per tox env?
 
 
 [testenv:ruff]
@@ -54,6 +53,7 @@ commands =
 [testenv:tests-all]
 deps =
     -e .[testing,all,HPI,org]
+    uv  # for hpi module install
 commands =
     # used in some tests
     {envpython} -m my.core module install \
@@ -70,6 +70,7 @@ setenv =
     PYTEST_TIMEOUT=120
 deps =
     -e .[testing,HPI]
+    uv  # for hpi module install
 commands =
     {envpython} -m my.core module install my.hypothesis
     {envpython} -m pytest     \
@@ -83,6 +84,7 @@ commands =
 [testenv:mypy-core]
 deps =
     -e .[testing]
+    uv  # for hpi module install
 commands =
     {envpython} -m mypy --install-types --non-interactive \
         # note: sources are tested separately, below