Start: Add check for uv

Uv is the definitive package installation tool for Python, so add
support to check for it via the start script.

Signed-off-by: kingbri <8082010+kingbri1@users.noreply.github.com>

start.bat

@@ -5,13 +5,27 @@
 
 cd "%~dp0"
 
+where uv >nul 2>&1
+if %errorlevel% equ 0 (
+    echo "HAS UV"
+    set HAS_UV=1
+) else (
+    set HAS_UV=0
+)
+
 :: Don't create a venv if a conda environment is active
 if exist "%CONDA_PREFIX%" (
     echo It looks like you're in a conda environment. Skipping venv check.
 ) else (
     if not exist "venv\" (
         echo Venv doesn't exist! Creating one for you.
-        python -m venv venv
+
+        if %HAS_UV% equ 1 (
+            echo "It looks like you're using uv. Running appropriate commands."
+            uv venv venv -p 3.12
+        ) else (
+            python -m venv venv
+        )
 
         if exist "start_options.json" (
             echo Removing old start_options.json

start.py

@@ -9,7 +9,13 @@ import subprocess
 import sys
 import traceback
 from shutil import copyfile
+from typing import List
 
+has_uv = subprocess.run(
+    ["uv", "--version"],
+    stdout=subprocess.DEVNULL,
+    stderr=subprocess.DEVNULL
+).returncode == 0
 
 start_options = {}
 
@@ -151,8 +157,14 @@ def migrate_start_options(start_options: dict):
     return migrated
 
 
+def run_pip(command: List[str]):
+    if has_uv:
+        command.insert(0, "uv")
+
+    subprocess.run(command)
+
+
 if __name__ == "__main__":
-    subprocess.run(["pip", "-V"])
 
     # Create an argparser and add extra startup script args
     # Try creating a full argparser if pydantic is installed
@@ -174,6 +186,10 @@ if __name__ == "__main__":
 
     add_start_args(parser)
     args, _ = parser.parse_known_args()
+
+    # Log pip version
+    run_pip(["pip", "-V"])
+
     script_ext = "bat" if platform.system() == "Windows" else "sh"
     do_start_options_write = False
 
@@ -224,7 +240,7 @@ if __name__ == "__main__":
 
         # pip install .[features]
         print(f"Running install command: {' '.join(install_command)}")
-        subprocess.run(install_command)
+        run_pip(install_command)
         print()
 
         if first_run:

start.sh

@@ -2,12 +2,24 @@
 
 cd "$(dirname "$0")" || exit
 
+if command -v uv >/dev/null 2>&1; then
+    HAS_UV=1
+else
+    HAS_UV=0
+fi
+
 if [ -n "$CONDA_PREFIX" ]; then
     echo "It looks like you're in a conda environment. Skipping venv check."
 else
     if [ ! -d "venv" ]; then
         echo "Venv doesn't exist! Creating one for you."
-        python3 -m venv venv
+
+        if [ "$HAS_UV" -eq 1 ]; then
+            echo "It looks like you're using uv. Running appropriate commands."
+            uv venv venv -p 3.12
+        else
+            python3 -m venv venv
+        fi
 
         if [ -f "start_options.json" ]; then
             echo "Removing old start_options.json"