#!/bin/sh
# $Id$
# Public domain.  Originally written 2003, Karl Berry.
# 
# Deal with files that are automatically updated in one way or another.
# New files need to be added manually, doesn't happen often enough.

PATH=/usr/local/gnu/bin:/usr/local/bin:$PATH; export PATH
umask 0

chicken=echo
chicken=
#
verbose=echo
verbose=false
#
cp="cp -fv"
mv="mv -fv"
diff="diff -U 2"

# maybe someday we'll make real options.
config_scripts_only=false

mydir=`cd \`dirname $0\` && /bin/pwd`
Master=`cd $mydir/../.. && /bin/pwd`
cd $Master || exit 1

temp=/tmp/ua$$
trap "rm -f $temp*" 0 1 2 15

update_list=
svn_add_list=

#  autogenerate README.EN from readme.html.
# 
if $config_scripts_only; then :; else
$mydir/htmltext <readme-html.dir/readme.en.html >$temp
if $diff readme-txt.dir/README.EN $temp >$temp.en.diff; then
  $verbose "  README.EN ok."
else
  $chicken $cp $temp readme-txt.dir/README.EN
  update_list="$update_list readme-txt.dir/README.EN"
fi
fi

#  modes.mf from elsewhere on tug.org.
#
if $config_scripts_only; then :; else
modesmaster=/home/ftp/tex/modes.mf
modesslave=texmf-dist/metafont/misc/modes.mf
#
if $diff $modesslave $modesmaster >$temp.modes.diff; then
  $verbose "  $modesslave ok."
else
  $chicken $cp $modesmaster $modesslave
  update_list="$update_list $modesslave"
fi
fi

#  texinfo.tex from elsewhere on tug.org.
#
if $config_scripts_only; then :; else
tximaster=/home/ftp/tex/texinfo.tex
txislave=texmf-dist/tex/texinfo/texinfo.tex
#
if $diff $txislave $tximaster >$temp.txi.diff; then
  $verbose "  $txislave ok."
else
  $chicken $cp $tximaster $txislave
  update_list="$update_list $txislave"
fi
fi

#  fontname from elsewhere on tug.org.
#
if $config_scripts_only; then :; else
fontnamemaster=/home/httpd/html/fontname
fontnamedocslave=texmf-dist/doc/fonts/fontname
#
for basef in ChangeLog Makefile bitstrea.aka \
             fontname.pdf fontname.html fontname.texi; do
  fontnameslavef=$fontnamedocslave/$basef
  if $diff $fontnamemaster/$basef $fontnameslavef >$temp.$basef.diff; then
    $verbose "   $fontnameslavef ok."
  else
    $chicken $cp $fontnamemaster/$basef $fontnameslavef
    update_list="$update_list $fontnameslavef"
  fi
done

# fontname runtime files.
#
fontnamemapslave=texmf-dist/fonts/map/fontname
#
files=`cd $fontnamemaster && ls *.map`
for basef in $files; do
  test $basef = wolfram.map && continue   # obsolete for TL
  fontnamemapslavef=$fontnamemapslave/$basef
  if $diff $fontnamemaster/$basef $fontnamemapslavef >$temp.$basef.diff; then
    $verbose "   $fontnamemapslavef ok."
  else
    $chicken $cp $fontnamemaster/$basef $fontnamemapslavef
    update_list="$update_list $fontnamemapslavef"
  fi
done

fontnameencslave=texmf-dist/fonts/enc/dvips/base
#
files=`cd $fontnamemaster && ls *.enc | egrep -vw '(groff|t5).enc'`
for basef in $files; do
  fontnameencslavef=$fontnameencslave/$basef
  if $diff $fontnameencslavef $fontnamemaster/$basef >$temp.$basef.diff; then
    $verbose "   $fontnameencslavef ok."
  else
    $chicken $cp $fontnamemaster/$basef $fontnameencslavef
    update_list="$update_list $fontnameencslavef"
  fi
done
fi 

#  config.guess/sub/etc. from elsewhere on tug.org, mirrored from GNU.
# 
config_masterdir=/home/ftp/dist/build-aux
#
for gnuconf in config.guess config.sub depcomp install-sh missing \
               mkinstalldirs; do 
  master_conffile=$config_masterdir/$gnuconf
  local_conffile=../Build/source/build-aux/$gnuconf
  #
  if $diff $local_conffile $master_conffile >$temp.$gnuconf.diff; then
    $verbose "  $gnuconf ok."
    rm -f $temp
  else
    # updated needed. find all copies in source.
    # Build/source/utils/asymptote/gc* is not checked in (since it's not
    # unpacked in the original release), therefore we cannot commit to it.
    alldev="`find ../Build/source -name $gnuconf | grep -v asymptote/gc`"
    for f in $alldev; do
      $chicken $cp $master_conffile $f
    done
    update_list="$update_list $alldev"
    
    # in the case of config.guess, but nothing else, we also need it in
    # the installer.
    if test $gnuconf = config.guess; then
      installer_config_guess=tlpkg/installer/$gnuconf
      $chicken $cp $master_conffile $installer_config_guess
      update_list="$update_list $installer_config_guess"
    fi
  fi
done


#  tlmgr and install-tl man pages autogenerated.
# Arrange to ignore date differences.
# 
if $config_scripts_only; then :; else

# return 0 if files $1 and $2 are the same except for the first lines.
# (we need to ignore the timestamps in the generation lines.)
same_except_for_th ()
{
  rm -f /tmp/seft1 /tmp/seft2
  sed '/^\.TH/d' <"$1" >/tmp/seft1
  sed '/^\.TH/d' <"$2" >/tmp/seft2
  cmp -s /tmp/seft1 /tmp/seft2
}

mandir=texmf/doc/man
webdir=/home/httpd/html/texlive/doc
man_update=false

for script in texmf/scripts/texlive/tlmgr.pl install-tl; do
  pod2man $script >$temp

  basescript=`basename $script .pl`
  manfile=$mandir/man1/$basescript.1

  if same_except_for_th $manfile $temp; then
    $verbose "    `basename $manfile` ok."
    rm -f $manfile.new
  else
    $chicken $mv $temp $manfile
    man_update=true

    # Update the version on the web site; since these aren't checked in, we
    # can do it unconditionally.
    # 
    pod2html="$chicken pod2html --cachedir=/tmp"
    $pod2html $script >$webdir/$basescript.html
  fi
done

if test -z "$chicken" && $man_update; then
  (cd $mandir && make)  # remake pdfs, should do always but it's something
  new_manpages=`svn status $mandir | sed -n 's/^? *//p'`
  svn_add_list="$svn_addlist $new_manpages"
  update_list="$update_list $mandir"
fi

fi # config_scripts_only


#  doc.html.
#
if $config_scripts_only; then :; else
$mydir/tl-update-docindex | tee $temp.doc \
| grep -v '<small>Generated' >$temp.doc.new
cp $temp.doc.new /tmp/x

#
grep -v '<small>Generated' doc.html >$temp.doc.cur
if $diff $temp.doc.cur $temp.doc.new >$temp.doc.diff; then
  $verbose "  doc.html ok."
else
  $chicken $cp $temp.doc.new doc.html
  update_list="$update_list doc.html"
fi
fi

status=0
if test -z "$update_list"; then
  echo "$0: nothing to update."
else
  if test -z "$svn_add_list"; then :; else
    test x"$chicken" = xecho || echo "$0: svn adding $svn_add_list"
    $chicken svn add $svn_add_list
  fi
  test x"$chicken" = xecho || echo "$0: committing $update_list"
  $chicken svn commit --force-log -m$0 $update_list
  status=$?
  test $status -ne 0 && echo "$0: *** svn commit failed, fix me." >&2    
fi

echo "$0: done `date`."
exit $status