#!/bin/sh
#
# In order to not ship broken symlinks, every manpage needs
# to be checked for a link. If there is a link, ensure
# that the destination file exists in the Debian
# package. See bug #876047 for an example.

# Ensure that the given file is alread handled.
# After the necessery Breaks/Replaces are added
# to debian/control, the file needs to be added
# manually to the list of known files.
check_breaks_replaces () {
  known_files="
    man3/queue.3
    man3/stpecpy.3
    man3/stpecpyx.3
    man3/ustpcpy.3
    man3/ustr2stp.3
    man3/zustr2stp.3
    man3/zustr2ustp.3
    man4/console_ioctl.4
    man4/tty_ioctl.4
    man3type/epoll_data.3type
    man3type/epoll_data_t.3type
    man3type/sigset_t.3type
    man3type/sigevent.3type
    man3type/sigval.3type
    man3type/siginfo_t.3type
    man3/const/EXIT_FAILURE.3const"
  file_is_known="no"
  for file in $known_files; do
    if [ "x$1" = "x$file" ]; then
     file_is_known="yes"
    fi
  done
  if [ $file_is_known = "no" ]; then
    echo
    echo "Error: The file $1 is not in the list of known files."
    echo "Probably you need to add Breaks/Replaces for the packages."
    echo "Afterwards, please add the file to the list of known files."
    echo
    exit 1
  fi
}

for src_section in man*; do
	#echo "$orig_section **********************************************************************************************************************"
	src_section_strip=$(echo $src_section | cut -c 1-4)
  for file in $src_section/*; do
    destination=`grep "^\.so " $file`
    file_strip=$(echo $file | xargs basename)
    if [ -n "$destination" ]; then
      dest_section=`echo "$destination" | sed -e "s/.*\(man.\).*/\1/"`
      if [ "$dest_section" != "$src_section" ]; then
	# The destination is in the package manpages
        if [ "$dest_section" != "man2" -a "$dest_section" != "man3" -a "$dest_section" != "man3type" -a "$dest_section" != "man3const" -a "$dest_section" != "man3head" ]; then
          # Ensure the source link is not in package manpages-dev
          if [ "$src_section" = "man2" -o "$src_section" = "man3" -o "$src_section" = "man3type" -o "$src_section" = "man3const" -o "$src_section" = "man3head" ]; then
            echo "Moving $file to package manpages."
            mkdir -p "debian/manpages/usr/share/man/$src_section_strip"
            mv "debian/manpages-dev/usr/share/man/$src_section_strip/$file_strip" "debian/manpages/usr/share/man/$src_section_strip/$file_strip"
            check_breaks_replaces "$file"
          fi
        else
          # The destination is in the package manpages-dev
          # Ensure the source link is not in package manpages
          if [ "$src_section" != "man2" -a "$src_section" != "man3" -a "$src_section" != "man3type" -a "$src_section" != "man3const" -a "$src_section" != "man3head" ]; then
            echo "Moving $file to package manpages-dev."
            mkdir -p "debian/manpages-dev/usr/share/man/$src_section_strip"
            mv "debian/manpages/usr/share/man/$src_section_strip/$file_strip" "debian/manpages-dev/usr/share/man/$src_section_strip/$file_strip"
            check_breaks_replaces "$file"
          fi
        fi
      fi
    fi
  done
done