python installer

Author: Pzixel

.gitignore

@@ -7,6 +7,7 @@ __pycache__/
 .tmp_spawningtool/
 drop-log.txt
 install-log.txt
+python-3.12.10-amd64.exe
 *.egg-info/
 dist/
 build/

Install once.bat

@@ -2,18 +2,36 @@
 setlocal
 set "ROOT=%~dp0"
 set "LOG=%ROOT%install-log.txt"
+set "PYTHON_URL=https://www.python.org/ftp/python/3.12.10/python-3.12.10-amd64.exe"
+set "PYTHON_INSTALLER=%ROOT%python-3.12.10-amd64.exe"
 
 echo Setting up sc2-replay-salt...
 echo Setup log for sc2-replay-salt>"%LOG%"
 echo.>>"%LOG%"
 
-where py >nul 2>nul
-if %ERRORLEVEL%==0 (
-    set "PY=py -3"
-) else (
-    set "PY=python"
+set "PY="
+if exist "%ROOT%.venv\Scripts\python.exe" (
+    set "PY=%ROOT%.venv\Scripts\python.exe"
+)
+
+if not defined PY (
+    where py >nul 2>nul
+    if not errorlevel 1 (
+        set "PY=py -3"
+    )
+)
+
+if not defined PY (
+    where python >nul 2>nul
+    if not errorlevel 1 (
+        set "PY=python"
+    )
 )
 
+if not defined PY (
+    call :install_python
+    if errorlevel 1 goto failed
+)
 if not exist "%ROOT%.venv\Scripts\python.exe" (
     echo Creating the private Python environment...
     %PY% -m venv "%ROOT%.venv" >>"%LOG%" 2>>&1
@@ -34,10 +52,39 @@ echo.
 pause
 exit /b 0
 
+:install_python
+echo Python was not found. Installing Python 3.12...
+echo Python was not found. Downloading %PYTHON_URL%>>"%LOG%"
+"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri '%PYTHON_URL%' -OutFile '%PYTHON_INSTALLER%'" >>"%LOG%" 2>>&1
+if errorlevel 1 exit /b 1
+
+echo Running the Python installer...>>"%LOG%"
+"%PYTHON_INSTALLER%" /quiet InstallAllUsers=0 PrependPath=1 Include_launcher=1 Include_pip=1 Include_test=0 SimpleInstall=1 >>"%LOG%" 2>>&1
+if errorlevel 1 exit /b 1
+
+if exist "%LocalAppData%\Programs\Python\Python312\python.exe" (
+    set "PY=%LocalAppData%\Programs\Python\Python312\python.exe"
+    exit /b 0
+)
+
+where py >nul 2>nul
+if not errorlevel 1 (
+    set "PY=py -3.12"
+    exit /b 0
+)
+
+where python >nul 2>nul
+if not errorlevel 1 (
+    set "PY=python"
+    exit /b 0
+)
+
+exit /b 1
+
 :failed
 echo.
 echo Setup failed, but the details were saved to install-log.txt.
-echo Make sure Python 3.10 or newer is installed, then run this file again.
+echo Close this window and run "Install once.bat" again. If it still fails, send install-log.txt.
 echo.
 pause
 exit /b 1

README.md

@@ -6,7 +6,7 @@ Decode StarCraft II replay files and print a readable build order for a selected
 
 For a normal Windows workflow:
 
-1. Double-click `Install once.bat`.
+1. Double-click `Install once.bat`. If Python is missing, it downloads and installs Python 3.12 from python.org first.
 2. Drag one or more `.SC2Replay` files onto `Drop replays here.bat`.
 3. Open the `build order.txt` file created next to each replay.