#!/bin/sh

progname=`echo "$0" | sed 's%^.*/%%'`

PROGRAM=gtkdocize
PACKAGE=gtk-doc
VERSION=1.24

prefix=/usr
datarootdir=${prefix}/share
datadir=${datarootdir}

# options
copy=no
makefile=gtk-doc.make
flavour=no-tmpl

# mini help
usage="\
usage: $progname [ --copy ] [ --docdir DIR ] [ --flavour {legacy|legacy-flat|no-tmpl|no-tmpl-flat} ] [ --srcdir DIR ]"

# Find the srcdir early (and ignore a srcdir set in configure).
# https://bugzilla.gnome.org/show_bug.cgi?id=707426
args="$*"
while test $# -gt 0; do
  case "$1" in
  --srcdir)
    shift
    srcdir="$1"
    shift ;;
  --srcdir=*)
    srcdir=`expr "X$1" : '[^=]*=\(.*\)'`
    shift ;;
  *)
    shift ;;
  esac
done
set - $args

# assume working directory if srcdir is not set
test "$srcdir" || srcdir=.
test "$docdir" || docdir="$srcdir"

# detect configure script
no_configure_found=0
if test -f "$srcdir"/configure.ac; then
  configure="$srcdir"/configure.ac
elif test -f "$srcdir"/configure.in; then
  configure="$srcdir"/configure.in
else
  no_configure_found=1
fi

# check configure script for GTK_DOC_CHECK macro
no_gtk_doc_check_found=0
if test $no_configure_found -eq 0; then
  macro=`grep '^GTK_DOC_CHECK' $configure 2>/dev/null`
  if test $? -eq 0; then
    # GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
    params=`echo $macro | sed -e 's/^GTK_DOC_CHECK(\ *\(.*\))/\1/'`
    if echo $params | grep -q '^.*\,\ *\[\{0,1\}'; then
      extra_options=`echo $params | sed -e 's/^.*\,\ *\[\{0,1\}\([^]]*\)\]\{0,1\}\ *$/\1/'`
      #echo >&2 "DEBUG: adding extra options [$extra_options] to [$*]"
      set - $* $GTKDOCIZE_FLAGS $extra_options
    else
      set - $* $GTKDOCIZE_FLAGS
    fi
  else
    no_gtk_doc_check_found=1;
  fi
fi

while test $# -gt 0; do
  #echo >&2 "DEBUG: parsing args [$1]";
  case "$1" in
  --help)
    echo "$usage"
    exit 0 ;;
  --version)
    echo "$PROGRAM ($PACKAGE) $VERSION"
    exit 0 ;;
  --copy)
    copy=yes
    shift ;;
  --docdir)
    shift
    docdir="$1"
    shift ;;
  --docdir=*)
    docdir=`expr "X$1" : '[^=]*=\(.*\)'`
    shift ;;
  --flavour)
    shift
    flavour="$1"
    shift ;;
  --flavour=*)
    flavour=`expr "X$1" : '[^=]*=\(.*\)'`
    shift ;;
  --srcdir)
    shift
    # srcdir was set earlier.
    shift ;;
  --srcdir=*)
    # srcdir was set earlier.
    shift ;;
  -*)
    echo "$progname: unrecognised option '$1'" 1>&2
    echo "$usage" 1>&2
    exit 1 ;;
  *)
    echo "$progname: too many arguments" 1>&2
    echo "$usage" 1>&2
    exit 1 ;;
  esac
done

case "$flavour" in
  legacy*)
    ;;
  legacy-flat*)
    makefile=gtk-doc.flat.make
    ;;
  no-tmpl*)
    makefile=gtk-doc.notmpl.make
    ;;
  no-tmpl-flat*)
    makefile=gtk-doc.notmpl-flat.make
    ;;
  *)
    echo "$progname: invalid value for --flavour" 1>&2
    echo "$usage" 1>&2
    exit 1 ;;
esac

if test $no_configure_found -eq 1; then
  echo "$progname: neither configure.ac nor configure.in exist" 1>&2
  exit 1
fi
if test $no_gtk_doc_check_found -eq 1; then
  echo "$progname: GTK_DOC_CHECK not called in $configure" 1>&2
  exit 1
fi

# If the AC_CONFIG_MACRO_DIR() macro is used, copy gtk-doc.m4 from our
# prefix to that directory.  This makes sure that the M4 macro used
# matches the the automake fragment.
# If AC_CONFIG_MACRO_DIR is not used, the macro won't be copied, and
# the correct flags must be passed to aclocal for it to find the macro.
m4dir="$srcdir"/`autoconf 2>/dev/null --trace 'AC_CONFIG_MACRO_DIR:$1' "$configure"`
if test -n "$m4dir"; then
  rm -f $m4dir/gtk-doc.m4
  if test "$copy" = yes; then
    cp -f $datadir/aclocal/gtk-doc.m4 $m4dir/ ||
      exit 1
  else
    ln -sf $datadir/aclocal/gtk-doc.m4 $m4dir/ ||
      cp -f $datadir/aclocal/gtk-doc.m4 $m4dir/ ||
      exit 1
  fi
fi

rm -f $docdir/gtk-doc.make
if test "$copy" = yes; then
  cp -f $datadir/gtk-doc/data/$makefile $docdir/gtk-doc.make ||
    exit 1
else
  ln -sf $datadir/gtk-doc/data/$makefile $docdir/gtk-doc.make ||
    cp -f $datadir/gtk-doc/data/$makefile $docdir/gtk-doc.make ||
    exit 1
fi
