@echo off

rem file      : build-mingw.bat
rem copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
rem license   : MIT; see accompanying LICENSE file

setlocal EnableDelayedExpansion
goto start

:usage
echo.
echo Usage: %0 [/?] [^<options^>] ^<c++-compiler^>
echo Options:
echo   --install-dir ^<dir^>  Alternative installation directory.
echo   --repo ^<loc^>         Alternative package repository location.
echo   --trust ^<fp^>         Repository certificate fingerprint to trust.
echo   --timeout ^<sec^>      Network operations timeout in seconds.
echo   --make ^<arg^>         Bootstrap using GNU make instead of batch file.
echo   --verbose ^<level^>    Diagnostics verbosity level between 0 and 6.
echo.
echo By default the batch file will install into C:\build2. It also expects
echo to find the base utilities in the bin\ subdirectory of the installation
echo directory ^(C:\build2\bin\ by default^).
echo.
echo The --trust option recognizes two special values: 'yes' ^(trust everything^)
echo and 'no' (trust nothing).
echo.
echo The --make option can be used to bootstrap using GNU make. The first
echo --make value should specify the make executable optionally followed by
echo additional make options, for example:
echo.
echo %0 --make mingw32-make --make -j8 g++
echo.
echo See the BOOTSTRAP-MINGW file for details.
echo.
goto end

:start

set "owd=%CD%"

rem Package repository URL (or path).
rem
if "_%BUILD2_REPO%_" == "__" (
rem set "BUILD2_REPO=https://stage.build2.org/1"
rem set "BUILD2_REPO=https://pkg.cppget.org/1/queue/alpha"
    set "BUILD2_REPO=https://pkg.cppget.org/1/alpha"
)

rem The bpkg configuration directory.
rem
set "cver=0.10"
set "cdir=build2-toolchain-%cver%"

rem Parse options.
rem
set "idir=C:\build2"
set "trust="
set "timeout="
set "make="
set "verbose="

:options
if "_%~1_" == "_/?_"     goto usage
if "_%~1_" == "_-h_"     goto usage
if "_%~1_" == "_--help_" goto usage

if "_%~1_" == "_--install-dir_" (
  if "_%~2_" == "__" (
    echo error: installation directory expected after --install-dir
    goto error
  )
  set "idir=%~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--trust_" (
  if "_%~2_" == "__" (
    echo error: certificate fingerprint expected after --trust
    goto error
  )
  set "trust=%~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--repo_" (
  if "_%~2_" == "__" (
    echo error: repository location expected after --repo
    goto error
  )
  set "BUILD2_REPO=%~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--timeout_" (
  if "_%~2_" == "__" (
    echo error: value in seconds expected after --timeout
    goto error
  )
  set "timeout=%~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--make_" (
  if "_%~2_" == "__" (
    echo error: argument expected after --make
    goto error
  )
  set "make=%make% %~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--verbose_" (
  if "_%~2_" == "__" (
    echo error: diagnostics level between 0 and 6 expected after --verbose
    goto error
  )
  set "verbose=%~2"
  shift
  shift
  goto options
)

if "_%~1_" == "_--_" shift

rem Validate options and arguments.
rem

rem Compiler.
rem
if "_%1_" == "__" (
  echo error: compiler executable expected, run %0 /? for details
  goto error
) else (
  set "cxx=%1"
)

rem @@ Temporarily retained for backwards compatibility.
rem
if not "_%2_" == "__" (
  set "idir=%2"
)
if not "_%3_" == "__" (
  set "trust=%3"
)

rem Certificate to trust.
rem
if not "_%trust%_" == "__" (
  if "_%trust%_" == "_yes_" (
    set "trust=--trust-yes"
  ) else (
    if "_%trust%_" == "_no_" (
      set "trust=--trust-no"
    ) else (
      set "trust=--trust %trust%"
    )
  )
)

rem Network timeout.
rem
if not "_%timeout%_" == "__" (
  set "timeout=--fetch-timeout %timeout%"
)

rem Diagnostics verbosity.
rem
if not "_%verbose%_" == "__" (
  set "verbose=--verbose %verbose%"
)

if not exist %idir%\bin\ (
  echo error: %idir%\bin\ does not exist
  goto error
)

if exist build\config.build (
  echo error: current directory already configured, start with clean source
  goto error
)

if exist ..\%cdir%\ (
  echo error: ..\%cdir%\ bpkg configuration directory already exists, remove it
  goto error
)

set "PATH=%idir%\bin;%PATH%"

rem Show the steps we are performing.
rem
@echo on

@rem Verify the compiler works.
@rem
%cxx% --version
@if errorlevel 1 goto error

@rem Bootstrap.
@rem
cd build2

@if "_%make%_" == "__" (
  goto batchfile
) else (
  goto makefile
)

:batchfile
@rem Execute in a separate cmd.exe to preserve the echo mode.
@rem
cmd /C bootstrap-mingw.bat %cxx% -static
@if errorlevel 1 goto error
@goto endfile

:makefile
%make% -f bootstrap.gmake CXX=%cxx% LDFLAGS=-static
@if errorlevel 1 goto error
@goto endfile

:endfile
build2\b-boot --version
@if errorlevel 1 goto error

build2\b-boot %verbose% config.cxx=%cxx% config.bin.lib=static build2\exe{b}
@if errorlevel 1 goto error

move /y build2\b.exe build2\b-boot.exe
@if errorlevel 1 goto error

build2\b-boot --version
@if errorlevel 1 goto error

@rem Build and stage the build system and the package manager.
@rem
cd ..

build2\build2\b-boot %verbose% configure^
 config.cxx=%cxx%^
 config.bin.suffix=-stage^
 config.install.root=%idir%^
 config.install.data_root=root\stage
@if errorlevel 1 goto error

build2\build2\b-boot %verbose% install: build2\ bpkg\
@if errorlevel 1 goto error

@rem The where command is not available on XP without the resource kit.
@rem
where b-stage
@rem @if errorlevel 1 goto error

where bpkg-stage
@rem @if errorlevel 1 goto error

b-stage --version
@if errorlevel 1 goto error

bpkg-stage --version
@if errorlevel 1 goto error

@rem Build the entire toolchain from packages.
@rem
cd ..

md %cdir%
@if errorlevel 1 goto error

cd %cdir%

@rem Save full path for later.
@rem
@set "cdir=%CD%"

bpkg-stage %verbose% create^
 cc^
 config.cxx=%cxx%^
 config.cc.coptions=-O3^
 config.install.root=%idir%
@if errorlevel 1 goto error

bpkg-stage %verbose% add %BUILD2_REPO%
@if errorlevel 1 goto error

bpkg-stage %verbose% %timeout% %trust% fetch
@if errorlevel 1 goto error

bpkg-stage %verbose% %timeout% build --for install --yes --plan= build2 bpkg bdep
@if errorlevel 1 goto error

bpkg-stage %verbose% install build2 bpkg bdep
@if errorlevel 1 goto error

where b
@rem @if errorlevel 1 goto error

where bpkg
@rem @if errorlevel 1 goto error

where bdep
@rem @if errorlevel 1 goto error

b --version
@if errorlevel 1 goto error

bpkg --version
@if errorlevel 1 goto error

bdep --version
@if errorlevel 1 goto error

@rem Clean up stage.
@rem
cd %owd%
b %verbose% uninstall: build2\ bpkg\
@if errorlevel 1 goto error

@echo off

echo.
echo Toolchain installation: %idir%\bin
echo Upgrade configuration:  %cdir%
echo.

goto end

:error
@echo off
cd %owd%
endlocal
exit /b 1

:end
endlocal