# Copyright (c) 2002-2008, Gerardo Santana Gómez Garrido <gerardo.santana@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
 
# ================================================================ VARIABLES
# Architecture we are building on/for
ARCH=${MACHINE_ARCH}
 
# You'll need to copy your kernel configuration file into
# ${WRKDIR}/sys/arch/${ARCH}/conf/ if you want to compile it.
# Defaults to GENERIC kernel
KERNEL?=GENERIC
 
DISTNAME?=binpatch-${OSREV}
PKGNAME?=${DISTNAME}
FLAVOR_EXT:=-${ARCH}-${PATCH}
FULLPKGNAME?=${DISTNAME}${FLAVOR_EXT}
 
# The directory where the OpenBSD installation files
# and source are stored
DISTDIR?=${.CURDIR}/distfiles
 
# Where patches are stored
PATCHDIR?=${.CURDIR}/patches
 
# The OpenBSD installation files should be in a subdirectory.
# Defaults to $ARCH
DISTSUBDIR?=${ARCH}
 
# FETCH program
FETCH=ftp
 
# The OpenBSD Master Site
MASTER_SITE_OPENBSD?=ftp://ftp.openbsd.org/pub
MASTER_SITE_SUBDIR?=OpenBSD/patches/${OSREV}
 
# The working directories. All of them will be created, and removed.
WRKDIR?=${.CURDIR}/work-${DISTNAME}
WRKSRC?=${WRKDIR}/src
WRKOBJ?=${WRKDIR}/obj
WRKINST?=${WRKDIR}/fake
PACKAGEDIR?=${.CURDIR}/packages
PKGDIR?=${.CURDIR}/pkg
 
# Variables needed for making the sources (after patching)
DESTDIR:=${WRKINST}
BSDOBJDIR=${WRKOBJ}
BSDSRCDIR:=${WRKSRC}
MAKE_ENV:= env DESTDIR=${DESTDIR} BSDOBJDIR=${BSDOBJDIR} BSDSRCDIR=${BSDSRCDIR} INSTALL_COPY=-C
 
# Signing variables
SIGNKEY?=NO
.if defined(SIGNPASS) && exists(${SIGNPASS})
SIGNCMD := -f ${SIGNPASS} ${SIGNKEY}
.else
SIGNCMD := ${SIGNKEY}
.endif
 
# ============================================== SPECIAL TARGETS & SHORTCUTS
# Subroutine to include for building a kernel patch
_kernel: .USE
.for _kern in ${KERNEL}
  cd ${WRKSRC}/sys/arch/${ARCH}/conf && \
  config ./${_kern} && \
  cd ../compile/${_kern} && \
  ${MAKE_ENV} make depend && \
  ${MAKE_ENV} make && \
  if [ ${_kern} = "GENERIC" ]; then \
  cp -p bsd ${WRKINST}; \
  elif [ ${_kern} = "GENERIC.MP" ]; then \
  cp -p bsd ${WRKINST}/bsd.mp; \
  else \
  cp -p bsd ${WRKINST}/bsd.${_kern}; \
  fi
.endfor
 
# Shortcuts
_obj=${MAKE_ENV} make obj
_cleandir=${MAKE_ENV} make cleandir
_depend=${MAKE_ENV} make depend
_includes=${MAKE_ENV} make includes
_build=${MAKE_ENV} make && ${_install} 
_install=${MAKE_ENV} make install
 
_obj_wrp=${MAKE_ENV} make -f Makefile.bsd-wrapper obj
_cleandir_wrp=${MAKE_ENV} make -f Makefile.bsd-wrapper cleandir
_depend_wrp=${MAKE_ENV} make -f Makefile.bsd-wrapper depend
_build_wrp=${MAKE_ENV} make -f Makefile.bsd-wrapper && ${_install_wrp}
_install_wrp=${MAKE_ENV} make -f Makefile.bsd-wrapper install
 
# ================================================================== COOKIES
COOKIE:=${WRKDIR}/.cookie
INIT_COOKIE:=${WRKINST}/.init-done
EXTRACT_COOKIE:=${WRKDIR}/.extract-done
 
PATCH_FILES= 
PATCH_COOKIES=
BUILD_COOKIES=
 
# ============================================== PATCHING & BUILDING TARGETS
# Create targets and define variables only for our ${ARCH}
PATCH_LIST:=${PATCH_${ARCH:U}} ${PATCH_COMMON}
 
.for _patch in ${PATCH_LIST}
 
# _number holds the patch number, that's enough
# to identify a patch file
_number:=${_patch:C/_.*//}
 
dummy:=${PATCH_${ARCH:U}:M${_patch}*}
.if !empty(dummy)
_file  :=${ARCH}/${_patch}.patch
.else
_file :=common/${_patch}.patch
.endif
 
# List of patch files
PATCH_FILE_${_number}:= ${PATCHDIR}/${_file}
PATCH_FILES:= ${PATCH_FILES} ${PATCH_FILE_${_number}}
 
# Fetches the patch file
${PATCH_FILE_${_number}}:
  @echo ">> ${.TARGET:T} doesn't seem to exist on this system."
  @mkdir -p ${.TARGET:H}
  @cd  ${.TARGET:H} && \
  for site in ${MASTER_SITE_OPENBSD}; do \
  echo ">> Attempting to fetch ${.TARGET} from $${site}/${MASTER_SITE_SUBDIR}/"; \
  if ${FETCH} $${site}/${MASTER_SITE_SUBDIR}/${.TARGET:S@${PATCHDIR}/@@}; then \
    exit 0; \
  fi; \
  done; exit 1
 
PATCH_COOKIE_${_number}:=${WRKDIR}/.${_patch}-applied
 
# Patches the source tree
${PATCH_COOKIE_${_number}}: ${PATCH_FILE_${_number}}
  @cd  ${WRKSRC} && \
  patch -p0 < ${PATCH_FILE_${.TARGET:E:C/_.*//}}
  @touch -f ${.TARGET}
 
COOKIE_${_number}:=${WRKDIR}/.${_patch}-build-start
 
BUILD_COOKIE_${_number}:=${WRKDIR}/.${_patch}-built
 
# Builds the patch applied
${BUILD_COOKIE_${_number}}:
  @touch -f ${COOKIE_${.TARGET:E:C/_.*//}}
  @env PATCH="${PATCH}" ${MAKE_ENV} make ${.TARGET:E:C/-built//}
  @touch -f ${.TARGET}
.endfor
 
.for _p in ${PATCH}
PATCH_COOKIES  += ${PATCH_COOKIE_${_p}}
BUILD_COOKIES  += ${BUILD_COOKIE_${_p}}
.endfor
 
# ============================================================= MAIN TARGETS
# Extracts sources
extract: ${EXTRACT_COOKIE}
 
${EXTRACT_COOKIE}:
.if defined(CDSRC)
  @if [ ! -f ${DISTDIR}/src.tar.gz ]; then \
  echo "+------------------------";\
  echo "|"; \
  echo "| Error: copy src.tar.gz from CD3 to ${DISTDIR}"; \
  echo "|"; \
  echo "+------------------------";\
  exit 1; \
  fi
.else
  @if [ ! -f ${DISTDIR}/src.tar.gz -o ! -f ${DISTDIR}/sys.tar.gz ]; then \
  echo "+------------------------";\
  echo "|"; \
  echo "| Error: download src.tar.gz and sys.tar.gz from an FTP server and"; \
  echo "| put them in ${DISTDIR}"; \
  echo "|"; \
  echo "+------------------------";\
  exit 1; \
  fi
.endif
  @echo "===>   Extracting sources"
  rm -rf ${WRKOBJ} ${WRKSRC}
  mkdir -p ${WRKOBJ}
  mkdir -p ${WRKSRC}
  tar xzpf ${DISTDIR}/src.tar.gz -C ${WRKSRC}
.if ! defined(CDSRC)
  tar xzpf ${DISTDIR}/sys.tar.gz -C ${WRKSRC}
.endif
  touch -f ${.TARGET}
 
# Extracts the OpenBSD installation files
init: ${INIT_COOKIE}
 
${INIT_COOKIE}:
  @echo "===>   Creating fake install tree"
  rm -rf ${WRKINST}
  mkdir -p ${WRKINST}
.for _pkg in base comp etc game man misc
  tar xzpf ${DISTDIR}/${ARCH}/${_pkg}${OSrev}.tgz -C ${WRKINST}
.endfor
  cp -p ${DISTDIR}/${ARCH}/bsd ${WRKINST} && \
  touch -f ${.TARGET}
 
# Applies patches
patch: extract ${PATCH_COOKIES}
 
# The cookie for detecting a change in the timestamp
${COOKIE}!
  @touch -f ${.TARGET}
 
# Builds the patch applied
build: init patch ${COOKIE} ${BUILD_COOKIES}
 
# Packages the modified files
plist: build
  @echo "===>   Finding changed binaries"
  @mkdir -p ${PKGDIR}
  @cd ${WRKINST} && \
  find . -newer ${COOKIE_${PATCH}} -a ! -newer ${BUILD_COOKIE_${PATCH}} -type f > ${PKGDIR}/PLIST${FLAVOR_EXT}
 
package: build
  @mkdir -p ${PACKAGEDIR}
  @echo "===>  Building package for ${FULLPKGNAME} in ${PACKAGEDIR}";
  @cat ${PKGDIR}/PLIST-${ARCH}-$${PATCH} | \
  (cd ${WRKINST} && xargs tar czpf ${PACKAGEDIR}/${FULLPKGNAME}.tgz) 
  @if [ "${SIGNKEY}" != "NO" ]; then \
      if [ ! -f "${SIGNKEY}" ]; then \
          echo "+-------------------------"; \
          echo "|"; \
          echo "| Key file (${SIGNKEY}) not found."; \
          echo "| Package will not be signed."; \
          echo "|"; \
          echo "+-------------------------"; \
      else \
          echo "===>  Signing package with ${SIGNKEY}"; \
          gzsig sign ${SIGNCMD} ${PACKAGEDIR}/${FULLPKGNAME}.tgz; \
          if [ -f "${SIGNKEY}.pub" ]; then \
            echo "===>  Verifying package with ${SIGNKEY}.pub"; \
            gzsig verify ${SIGNKEY}.pub ${PACKAGEDIR}/${FULLPKGNAME}.tgz;\
          fi; \
      fi; \
  fi
  @echo "+-------------------------"
  @echo "|"
  @echo "| The binary patch has been created in"
  @echo "| ${PACKAGEDIR}"
  @echo "|"
  @echo "| To install it run make install or:"
  @echo "|"
  @echo "| # cd ${PACKAGEDIR}"
  @echo "| # tar xzpf ${FULLPKGNAME}.tgz -C /"
  @echo "|"
  @echo "+-------------------------"
 
# Installs the binary patch
install:
  tar xzpf ${PACKAGEDIR}/${FULLPKGNAME}.tgz -C /
 
# Cleans the working directory
clean:
  @echo "===>  Cleaning working directory"
  rm -rf ${WRKDIR}
 
# Removes the directories and cookie created by extract
clean-extract:
  rm -rf ${WRKSRC} ${WRKOBJ} ${EXTRACT_COOKIE}
 
# Removes fake directory
clean-init:
  rm -rf ${WRKINST}
 
.if defined(show)
.MAIN: show
show:
.  for _s in ${show}
    @echo ${${_s}:Q}
.  endfor
.else
.MAIN: build
.endif
 
.include <bsd.own.mk>