# Maintainer: cygSimple <cygsimple@users.sourceforge.net>

# Cross build requires specifying --host, --build and sometimes --target.
# The --build is always $CHOST as specified in /etc/makepkg.conf
# The --host will be $CHOST if --target is also specified otherwise $THOST
# The --target is specified if the binary runs as a cross tool
if [ -z "${THOST}" ]; then
  THOST=${CHOST}
fi

# The pkgbase is the controller of the templated actions
_pkgbase=autoconf

# The pkgver comes from the upstream source distribution.
pkgver=2.13

pkgbase=${_pkgbase}${pkgver}

# The pkgrel is the count of number of issues of the same pkgver.
pkgrel=1

# The pkgdesc here comes from an upstream description of the package source.
pkgdesc="A GNU tool for automatically configuring source code"

# cygSimple is only providing x86_64
arch=('any')

# The license comes from the upstream package source.
license=('GPL2' 'GPL3' 'custom')

# The URL describing the package.
url=https://www.gnu.org/software/autoconf

# Can we cross build this package, if not set _allow_cross=false.
_allow_cross=true
if test ! ${THOST} = ${CHOST} && test $_allow_cross = false; then
  error "The ${pkgbase} package cannot be cross compiled."
  exit 1
fi

# The `eval'uated parts below require srcdir and pkgdir be set; but PKGBUILD
# is sourced before these are set so we must do it explicitly here.
srcdir=`pwd`/src
pkgdir=`pwd`/pkg

# Identify the package type to split the packages into.
pkgtypes=(
	'exe'
	#'dll'
	#'lib-headers'
	#'lib-static'
	#'lib-shared'
	#'lib-pkgconfig'
	#'aclocal'
	'doc-info'
	#'doc-man'
	#'doc-html'
	#'doc-text'
	#'doc-pdf'
	#'locale'
	'data'
	'license'
	#'extra'
)

# If we are cross building then we cannot `make check`
# instead we create a -testing.pkg.tar with a -testing.install
# to execute the testing on the target host.
# pacman -U PACKAGE-testing.pkg.tar.xz will execute the `make check`
# after installing the /usr/src/testing/PACKAGE-PKGVER-PKGREL.
if test ! $CHOST = $THOST; then
  pkgtypes+=('testing')
  touch ${pkgbase}-testing.install
  cat <<'  EOD'>${pkgbase}-testing.install.in
post_install() {
  cd /usr/src/testing/@PKGBASE@-@PKGVER@-@PKGREL@/@PKGBLDDIR@
  make check
}

post_upgrade() {
  post_install
}

post_remove() {
  rm -rf /usr/src/testing/@PKGBASE@-@PKGVER@-@PKGREL@
}
  EOD
fi

# Then pkgname becomes an array of the concantenation of the pkgbase and the
# individual pkgtypes.
pkgname=()
for T in "${pkgtypes[@]}"; do
  pkgname+=("${pkgbase}-${T}")
  case ${T} in
    doc-info)
      touch ${pkgbase}-doc-info.install
      cat <<'      EOD'>${pkgbase}-doc-info.install.in
infodir=usr/share/info
filelist=@PKGBASE@.info.gz

post_install() {
  [ -x usr/bin/install-info ] || return 0
  for file in ${filelist}; do
    usr/bin/install-info $infodir/$file $infodir/dir 2> /dev/null
  done
}

post_upgrade() {
  post_install $1
}

pre_remove() {
  [ -x usr/bin/install-info ] || return 0
  for file in ${filelist}; do
    usr/bin/install-info --delete $infodir/$file $infodir/dir 2> /dev/null
  done
}
      EOD
      ;;
    *) ;;
  esac
done

# The extra binaries should be declared here.
pkgexealsoprovides=(
	autoheader-2.13
	autoreconf-2.13
	autoscan-2.13
	autoupdate-2.13
	ifnames-2.13
)

# The extra DLL should be declared here.
pkgdllalsoprovides=(
	#@PKGDLLALSOPROVIDES@
)

# The extra static libraries should be declared here.
pkglibstaalsoprovides=(
	#@PKGLIBSTAALSOPROVIDES@
)

# The extra shared libraries should be declared here.
pkglibshralsoprovides=(
	#@PKGLIBSHRALSOPROVIDES@
)

# The source files both virtual and physical
source=(
	https://ftp.gnu.org/pub/gnu/${_pkgbase}/${_pkgbase}-${pkgver}.tar.gz
)

# The sha256sums array is in the same order as the source array, use 'SKIP'
# if the source file doesn't or shouldn't have one.
sha256sums=(
	'f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e'
)

# The validpgpkeys for the upstream source packages if there are any.
# You need these keys in your keystore.
validpgpkeys=(
	#'@VALIDPGPKEYS@'
)

# The pkgmake is used to identify the make program to use
# Not everyone likes GNU make
pkgmake=/usr/bin/make

# The pkgdestdir identifies deposition directory for creating packages.
pkgdestdir="${srcdir}/dest"

# The pkgmakeinstall is used to identify the method to use for installing
pkgmakeinstall="${pkgmake} prefix=${pkgdestdir}/usr install"

# The pkgmakecheck is used to identify the method for testing the package.
pkgmakecheck="${pkgmake} check"

# The pkgsrcdir identifies the source directory of the package.
pkgsrcdir="${srcdir}/${_pkgbase}-${pkgver}"

# The pkgblddir identifies the build directory for the source.
pkgblddir="${srcdir}/build"

# The pkgconfigure is used to identify the name of the configure script.
# Not everyone uses autoconf tools.
pkgconfigure="${pkgsrcdir}/configure"

# The pkgconfigoptions is used to add configure options that aren't standard.
# When specifying --target --host must be $CHOST.
pkgconfigoptions=(
	'--prefix=/usr'
	"--host=${THOST}"
	#"--host=${CHOST}"
	"--build=${CHOST}"
	#"--target=${THOST}"
	'--sysconfdir=/etc'
	'--sharedstatedir=/var'
	'--localstatedir=/var'
	'--disable-shared'
	'--enable-static'
	"--program-suffix=-${pkgver}"
)

# The make process depends on packages listed here.
makedepends=(
	#@MAKEDEPENDS@
)

# The unit testing process depends on packages listed here.
checkdepends=(
	#@CHECKDEPENDS@
)

# ####################### #
#      Helper macros      #
# ####################### #

##
 # Apply patch with a message giving the name of the patch file
 #
 # @param mixed
 #   - integer identifying the -p number (defaults to 1) or
 #   - array of the names of the patch files
 # @param optional but required if Param 1 is an integer
 #   - array of the names of the patch files
 # @return the exit status of the patch operation
 #
 # @example
 #  apply_patch_with_msg some_file.patch
 #  apply_patch_with_msg 3 some_file.patch some_file2.patch
 #
 # @note
 #  The patch file must reside in ${srcdir}.
 ##
apply_patch_with_msg() {
  local plvl
  if [[ $1 == +([0-9]) ]]; then
    plvl=$1
    shift
  else
    plvl=1
  fi
  for F in "$@"
  do
    msg2 "Applying patch file $F"
    patch -Nbp${plvl} -i "${srcdir}/${F}"
  done
}

##
 # Delete a file, link or directory if it exists
 #
 # @param An array of files, links and/or directories
 # @return the exit status of the last rm operation or unchanged exit status
 ##
del_file_exists() {
  local _f
  for _f in "$@"
  do
    if [ -l $_f ] || [ -f $_f ]; then
      rm -f $_f
    fi
    if [ -d $_f ]; then
      rm -rf $_f
    fi
  done
}

##
 # Does function exist?
 #
 # @param A string identifying the name of a function
 # @return boolean true or false
 #
 # @example
 #  fn_exists fn_exists && this || that
 #
 #  if fn_exhsts fn_exists; then
 #    this
 #  else
 #    that
 #  fi
 ##
fn_exists() {
  test x$(type -t $1) = xfunction
}

##
 # Does NEEDLE exists in the values of HAYSTACK
 #
 # @param needle - the item to search for
 # @param haystack - the array containing items
 # @return boolean true or false
 #
 # @example
 #  in_array 'needle' "${haystack[@]}" && this || that
 #
 #  if in_array 'needle' "${haystac[@]}"; then
 #    this
 #  else
 #    that
 #  fi
 ##
in_array() {
  local needle haystack
  printf -v needle -- ',,%q' "$1"
  shift
  printf -v haystack -- ',,%q' "$@"
  [[ "${haystack},," =~ "${needle},," ]]
}

# ####################### #
#         Hooks           #
# ####################### #
# prefix pre_ or post_ to #
#  any of the standard    #
#  functions (prepare,    #
#  build, check) to add   #
#  operations for each    #
#  step.                  #
# Create auto_conf() if   #
#  some configuration     #
#  script needs to exe-   #
#  cute to create the     #
#  configure scripts.     #
#  E.G. autoreconf -vfi   #
#                         #
# @see gettext/PKGBUILD   #
#  for examples of use.   #
# ####################### #

# Change or remove auto_conf as necessary
# autoreconf is the more common option so included for convenience
# @see gettext/PKGBUILD:auto_conf() for another example

# ####################### #
#     Required macros     #
# ####################### #
prepare() {
  fn_exists pre_prepare && pre_prepare || true
  # Patches are always listed in the source array.  This scheme will force the
  # patch to be at level 1 deep and the file name to end in .patch
  cd ${pkgsrcdir}
  for F in ${source[@]}; do
    if test "${F##*.}" = 'patch'; then
      apply_patch_with_msg $F
    fi
  done
  fn_exists auto_conf && auto_conf || true
  fn_exists post_prepare && post_prepare || true
}

build() {
  fn_exists pre_build && pre_build || true
  mkdir -p ${pkgblddir}
  cd ${pkgblddir}
  $pkgconfigure \
	${pkgconfigoptions[@]}
  ${pkgmake}
  ${pkgmakeinstall}
  fn_exists post_build && post_build || true
}

check() {
  fn_exists pre_check && pre_check || true
  if test "${THOST}" = "${CHOST}"; then
    cd ${pkgblddir}
    ${pkgmakecheck} || true
    msg2 "There are 4 known unexpected failures; 3 regarding F77 and 1 regarding loadavg"
  else
    msg2 "NOTE: The make check function is disabled when cross compiling."
  fi
  fn_exists post_check && post_check || true
}

# ####################### #
#      Package macros     #
# ####################### #

# Use SQ and DQ to aid in the `eval`uated strings below.
SQ="'"
DQ='"'

# Caution you must make sure the executables are not dependent on the dll package
# Or add the dll package as a dependency.
in_array 'exe' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-exe() {
  pkgdesc='${pkgbase^^} executable files'
  provides=('${pkgbase}=${pkgver}' ${pkgexealsoprovides[@]})
  groups=('executables' '${pkgbase}=${pkgver}')
  depends=('awk' 'm4' 'diffutils' 'bash')
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr
  cp -a ${pkgdestdir}/usr/bin \${pkgdir}/usr/
}"

in_array 'dll' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-dll() {
  pkgdesc='${pkgbase^^} DLL shared libraries'
  provides=(${pkgdllalsoprovides[@]})
  groups=('dlls' '${pkgbase}=${pkgver}')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/bin
  cp -a ${pkgdestdir}/usr/{bin,lib}/*.dll \${pkgdir}/usr/bin/ 2>/dev/null || true
}"

in_array 'lib-headers' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-lib-headers() {
  pkgdesc='${pkgbase^^} library headers'
  provides=('${pkgbase}-headers=${pkgver}')
  groups=('libraries' 'headers' '${pkgbase}=${pkgver}')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr
  cp -a ${pkgdestdir}/usr/include \${pkgdir}/usr/
}"

in_array 'aclocal' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-aclocal() {
  pkgdesc='${pkgbase^^} aclocal m4 macros'
  groups=('libraries' 'aclocal' '${pkgbase}=${pkgver}')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share
  cp -a ${pkgdestdir}/usr/share/aclocal \${pkgdir}/usr/share/
}"

in_array 'lib-pkgconfig' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-lib-pkgconfig() {
  pkgdesc='${pkgbase^^} pkgconfig files'
  provides=('${pkgbase}-pkgconfig=${pkgver}')
  groups=('libraries' 'pkgconfig' '${pkgbase}=${pkgver}')
  depends=('${pkgbase}-lib=${pkgver}')
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/lib
  cp -a ${pkgdestdir}/usr/lib/pkgconfig \${pkgdir}/usr/lib/
}"

in_array 'lib-static' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-lib-static() {
  pkgdesc='${pkgbase^^} headers and static libraries'
  provides=('${pkgbase}-static=${pkgver}' '${pkgbase}-lib=${pkgver}' '${pkgbase}-devel=${pkgver}' ${pkglibstaalsoprovides[@]})
  groups=('libraries' 'libstatic' '${pkgbase}=${pkgver}')
  depends=('${pkgbase}-lib-headers=${pkgver}')
  in_array 'aclocal' '${pkgtypes[@]}' && depends+=('${pkgbase}-aclocal=${pkgver}') || true
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true
  in_array 'lib-pkgconfig' '${pkgtypes[@]}' && depends+=('${pkgbase}-lib-pkgconfig=${pkgver}') || true

  mkdir -p \${pkgdir}/usr
  cp -a ${pkgdestdir}/usr/lib \${pkgdir}/usr/
  rm -f \${pkgdir}/usr/lib/*.dll.a
}"

in_array 'lib-shared' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-lib-shared() {
  pkgdesc='${pkgbase^^} shared libraries'
  provides=('${pkgbase}-shared=${pkgver}' '${pkgbase}-lib=${pkgver}' '${pkgbase}-devel=${pkgver}' ${pkglibshralsoprovides[@]})
  groups=('libraries' 'libshared' '${pkgbase}=${pkgver}')
  depends=('${pkgbase}-lib-headers=${pkgver}')
  in_array 'dll' '${pkgtypes[@]}' && depends+=('${pkgbase}-dll=${pkgver}') || true
  in_array 'aclocal' '${pkgtypes[@]}' && depends+=('${pkgbase}-aclocal=${pkgver}') || true
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true
  in_array 'lib-pkgconfig' '${pkgtypes[@]}' && depends+=('${pkgbase}-lib-pkgconfig=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/lib
  cp -a ${pkgdestdir}/usr/lib/*.dll.a \${pkgdir}/usr/lib/
}"

in_array 'doc-info' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-doc-info() {
  pkgdesc='${pkgbase^^} info documentation'
  groups=('documentation' 'doc-info' '${pkgbase}-doc' '${pkgbase}=${pkgver}')
  depends=('info-exe')
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true
  options=('!strip')

  cat ${startdir}/${pkgbase}-doc-info.install.in | \
    sed -e 's/@PKGBASE@/${pkgbase}/' \
        -e 's/@PKGVER@/${pkgver}/' \
        -e 's/@PKGREL@/${pkgrel}/' \
        -e 's~@PKGBLDDIR@~`basename ${pkgblddir}`~' > \
	  ${startdir}/${pkgbase}-doc-info.install
  install=${pkgbase}-doc-info.install

  mkdir -p \${pkgdir}/usr/share/info
  cp -a ${pkgdestdir}/usr/info/${_pkgbase}.info \${pkgdir}/usr/share/info/${pkgbase}.info
}"

in_array 'doc-man' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-doc-man() {
  pkgdesc='${pkgbase^^} man documentation'
  groups=('documentation' 'doc-man' '${pkgbase}-doc' '${pkgbase}=${pkgver}')
  depends=('man-exe')
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true
  options=('!strip')

  mkdir -p \${pkgdir}/usr/share
  cp -a ${pkgdestdir}/usr/share/man \${pkgdir}/usr/share/
}"

in_array 'doc-html' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-doc-html() {
  pkgdesc='${pkgbase^^} html documentation'
  groups=('documentation' 'doc-html' '${pkgbase}-doc' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share/doc/html/${pkgbase}
  cp -a ${pkgdestdir}/usr/share/doc/${pkgbase}/*.html \${pkgdir}/usr/share/doc/html/${pkgbase}/
}"

in_array 'doc-text' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-doc-text() {
  pkgdesc='${pkgbase^^} text documentation'
  groups=('documentation' 'doc-text' '${pkgbase}-doc' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share/doc/text/${pkgbase}
  cp -a ${pkgdestdir}/usr/share/doc/${pkgbase}/* \${pkgdir}/usr/share/doc/text/${pkgbase}/
  rm -f \${pkgdir}/usr/share/doc/text/${pkgbase}/*.html
}"

in_array 'doc-pdf' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-doc-pdf() {
  pkgdesc='${pkgbase^^} pdf documentation'
  groups=('documentation' 'doc-pdf' '${pkgbase}-doc' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share/doc/pdf/${pkgbase}
  cp -a ${pkgdestdir}/usr/share/doc/${pkgbase}/*.pdf \${pkgdir}/usr/share/doc/pdf/${pkgbase}/
}"

in_array 'locale' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-locale() {
  pkgdesc='${pkgbase^^} locale message database files'
  groups=('locale' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share
  cp -a ${pkgdestdir}/usr/share/locale \${pkgdir}/usr/share/
}"

in_array 'data' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-data() {
  pkgdesc='${pkgbase^^} data files'
  groups=('data' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  mkdir -p \${pkgdir}/usr/share
  cp -a ${pkgdestdir}/usr/share/${_pkgbase} \${pkgdir}/usr/share/
}"

in_array 'license' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-license() {
  pkgdesc='${pkgbase^^} custom license file'
  groups=('license' '${pkgbase}=${pkgver}')
  options=('!strip')

  mkdir -p \${pkgdir}/usr/share/licenses/${pkgbase}
  cp -f ${pkgsrcdir}/COPYING \${pkgdir}/usr/share/licenses/${pkgbase}/
}"

in_array 'extra' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-extra() {
  pkgdesc='${pkgbase^^} extra files'
  groups=('extra' '${pkgbase}=${pkgver}')
  options=('!strip')
  depends=()
  in_array 'license' '${pkgtypes[@]}' && depends+=('${pkgbase}-license=${pkgver}') || true

  # create what you need in \${pkgdir}/
}"

in_array 'testing' "${pkgtypes[@]}" && \
eval "package_${pkgbase}-testing() {
  pkgdesc='${pkgbase^^} preconfigured and built files to be used for native host testing'
  groups=('testing')
  provides=('${pkgbase}-testing=${pkgver}')
  options=('staticlibs' '!strip' 'libtool')
  install='${pkgbase}-testing.install'

  cat ${startdir}/${pkgbase}-testing.install.in | \
    sed -e 's/@PKGBASE@/${pkgbase}/' \
        -e 's/@PKGVER@/${pkgver}/' \
        -e 's/@PKGREL@/${pkgrel}/' \
        -e 's~@PKGBLDDIR@~`basename ${pkgblddir}`~' > \
	  ${startdir}/${pkgbase}-testing.install
  mkdir -p \${pkgdir}/usr/src/testing/${pkgbase}-${pkgver}-${pkgrel}
  cp -a ${pkgsrcdir} \${pkgdir}/usr/src/testing/${pkgbase}-${pkgver}-${pkgrel}/
  if test ! '$pkgblddir' = '$pkgsrcdir'; then
    cp -a ${pkgblddir} \${pkgdir}/usr/src/testing/${pkgbase}-${pkgver}-${pkgrel}/
  fi
  find \${pkgdir}/usr/src/testing -type d -name autom4te.cache -prune -exec rm -rf {} \;
  for I in \`grep -rl ${srcdir}/ \${pkgdir}/usr/src/testing/\`
  do
    sed -e 's~${srcdir}/~/usr/src/testing/${pkgbase}-${pkgver}-${pkgrel}/~g' \$I > \${I}.new
    mv -f \${I}.new \${I}
  done
}"

# Need to reset the exit status due to the use of in_array.
true
