@echo off

setlocal EnableDelayedExpansion
set "_errorlevel=0"

set "VCS_GIT=git@exe@"
set "VCS_HG="
set "VCS_SVN="

set "VCS_TAR=tar@exe@"

goto :select_operation


:vcs_type

if not defined VCS_GIT goto :vcs_type_not_git
if not exist "%1\.git" goto :vcs_type_not_git
set "_type=git"
exit /b 0
:vcs_type_not_git

if not defined VCS_HG goto :vcs_type_not_hg
if not exist "%1\.hg" goto :vcs_type_not_hg
set "_type=hg"
exit /b 0
:vcs_type_not_hg

if not defined VCS_SVN goto :vcs_type_not_svn
if not exist "%1\.svn" goto :vcs_type_not_svn
set "_type=svn"
exit /b 0
:vcs_type_not_svn

set "_type=unknown"
exit /b 0


:vcs_clone

if not defined VCS_GIT goto :vcs_clone_not_git
"%VCS_GIT%" clone "%1" "%2"
if not ERRORLEVEL 1 goto :vcs_clone_success
:vcs_clone_not_git

if not defined VCS_HG goto :vcs_clone_not_hg
"%VCS_HG%" clone "%1" "%2"
if not ERRORLEVEL 1 goto :vcs_clone_success
:vcs_clone_not_hg

if not defined VCS_SVN goto :vcs_clone_not_svn
"%VCS_SVN%" checkout "%1" "%2"
if not ERRORLEVEL 1 goto :vcs_clone_success
:vcs_clone_not_svn

echo.gambvcs could not clone %1
exit /b 1

:vcs_clone_success
exit /b 0


:vcs_update

call :vcs_type "%1"

if not "%_type%" == "git" goto :vcs_update_not_git

cd "%1" && "%VCS_GIT%" pull

if ERRORLEVEL 1 goto :vcs_update_failure
exit /b 0
:vcs_update_not_git

if not "%_type%" == "hg" goto :vcs_update_not_hg

"%VCS_HG%" -R "%1" -u

if ERRORLEVEL 1 goto :vcs_update_failure
exit /b 0
:vcs_update_not_hg

if not "%_type%" == "svn" goto :vcs_update_not_svn

cd "%1" && "%VCS_SVN%" update

if ERRORLEVEL 1 goto :vcs_update_failure
exit /b 0
:vcs_update_not_svn

:vcs_update_failure
exit /b 1


:vcs_copy

call :vcs_type "%1"

if not "%_type%" == "git" goto :vcs_copy_not_git

if "%2" == "" (
  cd "%1" && "%VCS_GIT%" archive HEAD | "%VCS_TAR%" xf - -C "%3"
) else (
  cd "%1" && "%VCS_GIT%" archive "tags/%2" | "%VCS_TAR%" xf - -C "%3"
)

if ERRORLEVEL 1 goto :vcs_copy_failure
exit /b 0
:vcs_copy_not_git

if not "%_type%" == "hg" goto :vcs_copy_not_hg

if "%2" == "" (
  "%VCS_HG%" archive -R "%1" "%3"
) else (
  "%VCS_HG%" archive -R "%1" -r "%2" "%3"
)

if ERRORLEVEL 1 goto :vcs_copy_failure
exit /b 0
:vcs_copy_not_hg

if not "%_type%" == "svn" goto :vcs_copy_not_svn

if "%2" == "" (
  xcopy@exe@ "%1\trunk" "%3" /s
) else (
  xcopy@exe@ "%1\tags\%2" "%3" /s
)

if ERRORLEVEL 1 goto :vcs_copy_failure
exit /b 0
:vcs_copy_not_svn

:vcs_copy_failure
exit /b 1


:select_operation

if "%1" == "type" goto type
if not "%1" == ""type"" goto not_type
:type

call :vcs_type "%VCS_TYPE_DIR_PARAM%"

echo %_type%

set "_errorlevel=%ERRORLEVEL%"

goto end
:not_type

if "%1" == "clone" goto clone
if not "%1" == ""clone"" goto not_clone
:clone

call :vcs_clone "%VCS_CLONE_REPO_PARAM%" "%VCS_CLONE_DIR_PARAM%"

set "_errorlevel=%ERRORLEVEL%"

goto end
:not_clone

if "%1" == "update" goto update
if not "%1" == ""update"" goto not_update
:update

call :vcs_update "%VCS_UPDATE_REPO_PARAM%"

set "_errorlevel=%ERRORLEVEL%"

goto end
:not_update

if "%1" == "copy" goto copy
if not "%1" == ""copy"" goto not_copy
:copy

call :vcs_copy "%VCS_COPY_REPO_PARAM%" "%VCS_COPY_TAG_PARAM%" "%VCS_COPY_DIR_PARAM%"

set "_errorlevel=%ERRORLEVEL%"

goto end
:not_copy

echo.gambvcs.bat unknown operation "%1"
exit /b 1

:end
exit /b %_errorlevel%