install.cmd

@echo off
setlocal
rem  install.cmd -- enable `git word` on Windows via a global git alias.
rem
rem    install.cmd              auto: Python (full) if present, else Perl (consumer)
rem    install.cmd --python     force the Python build (mint / resolve / --vibe)
rem    install.cmd --perl       force the Perl consumer build (resolve + pass-through)
rem    install.cmd --sep[=_]    git word mints dashed (or _) by default (git config)
rem    install.cmd --uninstall  remove the `git word` alias
rem
rem  Uses a git ALIAS rather than a PATH entry: a "!"-alias runs through Git's
rem  bundled sh, which is the reliable way to hook a script-based subcommand on
rem  Windows (no .exe wrapper or PATHEXT/shebang games). An explicit COMMITWORD_LLM_*
rem  env var, or `git config --global commitword.llm.*`, configures --vibe.

rem  This repo's directory: forward-slashed for Git's sh, trailing slash trimmed.
set "REPO=%~dp0"
set "REPO=%REPO:\=/%"
if "%REPO:~-1%"=="/" set "REPO=%REPO:~0,-1%"

where git >nul 2>nul || (echo install.cmd: git is not on PATH & exit /b 1)

set "MODE=auto"
set "SEP="
set "UNINSTALL="

:parse
if "%~1"=="" goto parsed
if /I "%~1"=="--python"    (set "MODE=python"  & shift & goto parse)
if /I "%~1"=="--perl"      (set "MODE=perl"    & shift & goto parse)
if /I "%~1"=="--uninstall" (set "UNINSTALL=1"  & shift & goto parse)
if /I "%~1"=="--sep"       (set "SEP=-"        & shift & goto parse)
if /I "%~1"=="--sep=-"     (set "SEP=-"        & shift & goto parse)
if /I "%~1"=="--sep=_"     (set "SEP=_"        & shift & goto parse)
echo install.cmd: unknown option %~1 & exit /b 1
:parsed

if defined UNINSTALL goto uninstall

if "%MODE%"=="auto" ( where python >nul 2>nul && set "MODE=python" )
if "%MODE%"=="auto" ( where perl   >nul 2>nul && set "MODE=perl" )
if "%MODE%"=="auto" (
    echo install.cmd: neither python nor perl found on PATH ^(Git for Windows bundles Perl^).
    exit /b 1
)

if "%MODE%"=="python" ( where python >nul 2>nul || (echo install.cmd: python not on PATH & exit /b 1) )
if "%MODE%"=="perl"   ( where perl   >nul 2>nul || (echo install.cmd: perl not on PATH   & exit /b 1) )

if "%MODE%"=="python" (
    set "CMD=!python '%REPO%/git-word'"
    set "CAP=full: mint / resolve / --vibe"
) else (
    set "CMD=!perl '%REPO%/git-word.pl'"
    set "CAP=consumer: resolve + pass-through, no mint"
)

git config --global alias.word "%CMD%" || (echo install.cmd: failed to set git alias & exit /b 1)
echo installed:  git word  -^>  %CMD%
echo backend:    %MODE%  [%CAP%]

if defined SEP (
    git config --global commitword.sep "%SEP%"
    echo config:     commitword.sep = %SEP%   ^(git word mints with this separator^)
    if not "%MODE%"=="python" echo note:       separators only affect minting; the %MODE% build doesn't mint
)

echo try:        git word HEAD        and        git word ^<commitword^>
exit /b 0

:uninstall
git config --global --unset alias.word 2>nul
echo removed:  git alias "word"
exit /b 0