#! /bin/sh
#
# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

# This program is meant for authors or maintainers which want to import
# modules from gnulib into their packages.

progname=$0
package=gnulib
cvsdatestamp='$Date: 2003-01-21 13:21:17 $'
last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'`
version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'`

# You can set AUTOCONFPATH to empty if autoconf 2.57 is already in your PATH.
AUTOCONFPATH=
case $USER in
  bruno )
    AUTOCONFBINDIR=/packages/gnu-inst-autoconf/2.57/bin
    AUTOCONFPATH="eval env PATH=${AUTOCONFBINDIR}:\$PATH "
    ;;
esac

AUTOCONF="${AUTOCONFPATH}autoconf"
AUTOHEADER="${AUTOCONFPATH}autoheader"
AUTOMAKE="${AUTOCONFPATH}automake-1.7"
ACLOCAL="aclocal-1.7"

# func_usage
# outputs to stdout the --help usage message.
func_usage ()
{
  echo "\
Usage: gnulib-tool --list
       gnulib-tool --import module1 ... moduleN
       gnulib-tool --create-testdir --dir=directory module1 ... moduleN
       gnulib-tool --create-megatestdir --dir=directory [module1 ... moduleN]
       gnulib-tool --test --dir=directory module1 ... moduleN
       gnulib-tool --megatest --dir=directory [module1 ... moduleN]
       gnulib-tool --extract-description module
       gnulib-tool --extract-filelist module
       gnulib-tool --extract-dependencies module
       gnulib-tool --extract-autoconf-snippet module
       gnulib-tool --extract-automake-snippet module
       gnulib-tool --extract-include-directive module
       gnulib-tool --extract-maintainer module

Operation modes:
      --list                print the available module names
      --import              import the given modules into the current package
      --create-testdir      create a scratch package with the given modules
      --create-megatestdir  create a mega scratch package with the given modules
                            one by one and all together
      --test                test the combination of the given modules
                            (recommended to use CC=\"gcc -Wall\" here)
      --megatest            test the given modules one by one and all together
                            (recommended to use CC=\"gcc -Wall\" here)
      --extract-description        extract the description
      --extract-filelist           extract the list of files
      --extract-dependencies       extract the dependencies
      --extract-autoconf-snippet   extract the snippet for configure.ac
      --extract-automake-snippet   extract the snippet for lib/Makefile.am
      --extract-include-directive  extract the #include directive
      --extract-maintainer         report the maintainer(s) inside gnulib

Options:
      --dir=DIRECTORY       specify the target directory
      --lib=libRARY         specify the library name
      --no-changelog        don't update or create ChangeLog files

Report bugs to <bug-gnulib@gnu.org>."
}

# func_version
# outputs to stdout the --version message.
func_version ()
{
  echo "$progname (GNU $package) $version"
  echo "Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
  echo "Written by" "Bruno Haible"
}

# func_fatal_error message
# outputs to stderr a fatal error message, and terminates the program.
func_fatal_error ()
{
  echo "gnulib-tool: *** $1" 1>&2
  echo "gnulib-tool: *** Stop." 1>&2
  exit 1
}

# Command-line option processing.
# Removes the OPTIONS from the arguments. Sets the variables:
# - mode            list or import or create-testdir or create-megatestdir
# - destdir         from --dir
# - libname         from --lib
# - do_changelog    false if --no-changelog was given, : otherwise
{
  mode=
  destdir=
  libname=libfoo
  do_changelog=:

  while test $# -gt 0; do
    case "$1" in
      --list | --lis )
        mode=list
        shift ;;
      --import | --impor | --impo | --imp | --im | --i )
        mode=import
        shift ;;
      --create-testdir | --create-testdi | --create-testd | --create-test | --create-tes | --create-te | --create-t )
        mode=create-testdir
        shift ;;
      --create-megatestdir | --create-megatestdi | --create-megatestd | --create-megatest | --create-megates | --create-megate | --create-megat | --create-mega | --create-meg | --create-me | --create-m )
        mode=create-megatestdir
        shift ;;
      --test | --tes | --te | --t )
        mode=test
        shift ;;
      --megatest | --megates | --megate | --megat | --mega | --meg | --me | --m )
        mode=megatest
        shift ;;
      --extract-* )
        mode=`echo "X$1" | sed -e 's/^X--//'`
        shift ;;
      --dir )
        shift
        if test $# = 0; then
          func_fatal_error "missing argument for --dir"
        fi
        destdir=$1
        shift ;;
      --dir=* )
        destdir=`echo "X$1" | sed -e 's/^X--dir=//'`
        shift ;;
      --lib )
        shift
        if test $# = 0; then
          func_fatal_error "missing argument for --lib"
        fi
        libname=$1
        shift ;;
      --lib=* )
        libname=`echo "X$1" | sed -e 's/^X--lib=//'`
        shift ;;
      --no-changelog | --no-changelo | --no-changel | --no-change | --no-chang | --no-chan | --no-cha | --no-ch | --no-c )
        do_changelog=false
        shift ;;
      --help | --hel | --he | --h )
        func_usage
        exit 0 ;;
      --version | --versio | --versi | --vers | --ver | --ve | --v )
        func_version
        exit 0 ;;
      -- )
        # Stop option prcessing
        shift
        break ;;
      -* )
        echo "gnulib-tool: unknown option $1" 1>&2
        echo "Try 'gnulib-tool --help' for more information." 1>&2
        exit 1 ;;
      * )
        break ;;
    esac
  done
}

case "$0" in
  /*) self_abspathname="$0" ;;
  */*) self_abspathname=`pwd`/"$0" ;;
  *) for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'`; do
       if test -x "$d/$0" && test ! -d "$d/$0"; then
         self_abspathname="$d/$0"
         break
       fi
     done
     if test -z "$self_abspathname"; then
       func_fatal_error "could not locate the gnulib-tool program - how did you invoke it?"
     fi
     ;;
esac
while test -L "$self_abspathname"; do
  # Resolve symbolic link.
  sedexpr1='s, -> ,#%%#,'
  sedexpr2='s,^.*#%%#\(.*\)$,\1,p'
  linkval=`LC_ALL=C ls -l "$self_abspathname" | sed -e "$sedexpr1" | sed -n -e "$sedexpr2"`
  test -n "$linkval" || break
  case "$linkval" in
    /* ) self_abspathname="$linkval" ;;
    * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
  esac
done
gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`

# func_all_modules
func_all_modules ()
{
  (cd "$gnulib_dir/modules" && ls -1) \
      | sed -e '/^CVS$/d' -e '/^ChangeLog$/d' -e '/^TEMPLATE$/d' -e '/~$/d' \
      | sort
}

# func_verify_module
# verifies a module name
func_verify_module ()
{
  if test ! -f "$gnulib_dir/modules/$module" \
     || test "CVS" = "$module" \
     || test "ChangeLog" = "$module" \
     || test "TEMPLATE" = "$module"; then
    echo "gnulib-tool: module $module doesn't exist" 1>&2
    module=
  fi
}

tags_regexp='\(Description\|Files\|Depends-on\|configure\.ac\|Makefile\.am\|Include\|Maintainer\)'
sed_extract_prog=':[ 	]*$/ {
  :a
    n
    s/^'"$tags_regexp"':[ 	]*$//
    tb
    p
    ba
  :b
}'

# func_get_description module
func_get_description ()
{
  sed -n -e "/^Description$sed_extract_prog" < "$gnulib_dir/modules/$1"
}

# func_get_filelist module
func_get_filelist ()
{
  sed -n -e "/^Files$sed_extract_prog" < "$gnulib_dir/modules/$1"
  #echo m4/onceonly.m4
  echo m4/onceonly_2_57.m4
}

# func_get_dependencies module
func_get_dependencies ()
{
  sed -n -e "/^Depends-on$sed_extract_prog" < "$gnulib_dir/modules/$1"
}

# func_get_autoconf_snippet module
func_get_autoconf_snippet ()
{
  sed -n -e "/^configure\.ac$sed_extract_prog" < "$gnulib_dir/modules/$1"
}

# func_get_automake_snippet module
func_get_automake_snippet ()
{
  sed -n -e "/^Makefile\.am$sed_extract_prog" < "$gnulib_dir/modules/$1"
}

# func_get_include_directive module
func_get_include_directive ()
{
  sed -n -e "/^Include$sed_extract_prog" < "$gnulib_dir/modules/$1" | \
  sed -e 's/^\(["<]\)/#include \1/'
}

# func_get_maintainer module
func_get_maintainer ()
{
  sed -n -e "/^Maintainer$sed_extract_prog" < "$gnulib_dir/modules/$1"
}

# func_create_testdir testdir modules
func_create_testdir ()
{
  testdir="$1"
  modules="$2"
  modules=`for m in $modules; do echo $m; done | sort | uniq`

  # Determine final module list.
  while true; do
    xmodules=
    for module in $modules; do
      func_verify_module
      if test -n "$module"; then
        xmodules="$xmodules $module "`func_get_dependencies $module`
      fi
    done
    xmodules=`for m in $xmodules; do echo $m; done | sort | uniq`
    if test "$xmodules" = "$modules"; then
      break
    fi
    modules="$xmodules"
  done
  echo "Module list with included dependencies:"
  echo "$modules" | sed -e 's/^/  /'

  # Determine final file list.
  files=
  for module in $modules; do
    func_verify_module
    if test -n "$module"; then
      files="$files "`func_get_filelist $module`
    fi
  done
  files=`for f in $files; do echo $f; done | sort | uniq`
  echo "File list:"
  echo "$files" | sed -e 's/^/  /'

  # Create directories.
  for d in `echo "$files" | sed -n -e 's,^\(.*\)/[^/]*,\1,p'`; do
    if test "$d" != config; then
      mkdir -p "$testdir/$d"
    fi
  done

  # Copy files.
  for f in $files; do
    case "$f" in
      config/*) g=`echo "$f" | sed -e 's,^config/,,'` ;;
      *) g="$f" ;;
    esac
    ln "$gnulib_dir/$f" "$testdir/$g" 2>/dev/null ||
    cp -p "$gnulib_dir/$f" "$testdir/$g"
  done

  # Create lib/Makefile.am.
  mkdir -p "$testdir/lib"
  (echo "## Process this file with automake to produce Makefile.in."
   echo
   echo "AUTOMAKE_OPTIONS = 1.5 gnits no-dependencies"
   echo
   echo "noinst_LIBRARIES = $libname.a"
   echo
   echo "$libname"'_a_SOURCES ='
   echo "$libname"'_a_LIBADD = @LIBOBJS@'
   echo '#'"$libname"'_la_LIBADD = @LTLIBOBJS@'
   echo "EXTRA_DIST ="
   echo "BUILT_SOURCES ="
   echo "SUFFIXES ="
   echo "MOSTLYCLEANFILES ="
   echo "CLEANFILES ="
   echo "DISTCLEANFILES ="
   echo "MAINTAINERCLEANFILES ="
   for module in $modules; do
     func_verify_module
     if test -n "$module"; then
       func_get_automake_snippet "$module" | sed -e "s,lib_SOURCES,$libname"'_a_SOURCES,g' -e "s,lib_OBJECTS,$libname"'_a_OBJECTS,g'
       if test "$module" = 'alloca'; then
         echo "$libname"'_a_LIBADD += @ALLOCA@'
         echo '#'"$libname"'_la_LIBADD += @LTALLOCA@'
       fi
     fi
   done
  ) > "$testdir/lib/Makefile.am"

  # Create m4/Makefile.am.
  mkdir -p "$testdir/m4"
  (echo "## Process this file with automake to produce Makefile.in."
   echo
   echo "EXTRA_DIST ="
   for f in $files; do
     case "$f" in
       m4/* )
         echo "EXTRA_DIST += "`echo "$f" | sed -e 's,^m4/,,'` ;;
     esac
   done
  ) > "$testdir/m4/Makefile.am"

  subdirs="lib m4"

  if test -f "$testdir"/m4/gettext.m4; then
    # Avoid stupid error message from automake:
    # "AM_GNU_GETTEXT used but `po' not in SUBDIRS"
    mkdir -p "$testdir/po"
    (echo "## Process this file with automake to produce Makefile.in."
    ) > "$testdir/po/Makefile.am"
    subdirs="$subdirs po"
  fi

  # Create Makefile.am.
  (echo "## Process this file with automake to produce Makefile.in."
   echo
   echo "AUTOMAKE_OPTIONS = 1.5 foreign"
   echo
   echo "SUBDIRS = $subdirs"
   echo
   echo "ACLOCAL_AMFLAGS = -I m4"
  ) > "$testdir/Makefile.am"

  # Create configure.ac.
  (echo "# Process this file with autoconf to produce a configure script."
   echo "AC_INIT(dummy,0)"
   echo "AM_INIT_AUTOMAKE"
   echo
   echo "AM_CONFIG_HEADER(config.h)"
   echo
   echo "AC_PROG_CC"
   echo "AC_PROG_INSTALL"
   echo "AC_PROG_MAKE_SET"
   echo "AC_PROG_RANLIB"
   echo
   if grep AC_GNU_SOURCE "$testdir"/m4/*.m4 > /dev/null; then
     echo "AC_GNU_SOURCE"
     echo
   fi
   for module in $modules; do
     func_verify_module
     if test -n "$module"; then
       func_get_autoconf_snippet "$module"
     fi
   done
   echo
   makefiles="Makefile"
   for d in $subdirs; do
     makefiles="$makefiles $d/Makefile"
   done
   echo "AC_OUTPUT([$makefiles])"
  ) > "$testdir/configure.ac"

  # Create autogenerated files.
  (cd "$testdir"
   echo "executing ${ACLOCAL} -I m4"
   ${ACLOCAL} -I m4
   echo "executing ${AUTOHEADER}"
   ${AUTOHEADER}
   echo "executing ${AUTOCONF}"
   ${AUTOCONF}
   echo "executing ${AUTOMAKE} --add-missing --copy"
   ${AUTOMAKE} --add-missing --copy
  )
  if grep '^BUILT_SOURCES *+=' "$testdir/lib/Makefile.am" > /dev/null; then
    (cd "$testdir"
     ./configure
       cd lib
       built_sources=`grep '^BUILT_SOURCES *=' Makefile.in | sed -e 's/^BUILT_SOURCES *=//'`
       if test -n "$built_sources"; then
         make $built_sources
       fi
       cd ..
     make distclean
    )
  fi
}

# func_create_megatestdir megatestdir allmodules
func_create_megatestdir ()
{
  megatestdir="$1"
  allmodules="$2"
  if test -z "$allmodules"; then
    allmodules=`func_all_modules`
  fi

  megasubdirs=
  # First, all modules one by one.
  for onemodule in $allmodules; do
    func_create_testdir "$megatestdir/$onemodule" $onemodule
    megasubdirs="${megasubdirs}$onemodule "
  done
  # Then, all modules all together.
  # Except fnmatch-posix, which conflicts with fnmatch-gnu. FIXME.
  allmodules=`for m in $allmodules; do if test $m != fnmatch-posix; then echo $m; fi; done`
  func_create_testdir "$megatestdir/ALL" "$allmodules"
  megasubdirs="${megasubdirs}ALL"

  # Create Makefile.am.
  (echo "## Process this file with automake to produce Makefile.in."
   echo
   echo "AUTOMAKE_OPTIONS = 1.5 foreign"
   echo
   echo "SUBDIRS = $megasubdirs"
  ) > "$megatestdir/Makefile.am"

  # Create configure.ac.
  (echo "# Process this file with autoconf to produce a configure script."
   echo "AC_INIT(dummy,0)"
   echo "AM_INIT_AUTOMAKE"
   echo
   echo "AC_PROG_MAKE_SET"
   echo
   echo "AC_CONFIG_SUBDIRS([$megasubdirs])"
   echo "AC_OUTPUT([Makefile])"
  ) > "$megatestdir/configure.ac"

  # Create autogenerated files.
  (cd "$megatestdir"
   echo "executing ${ACLOCAL}"
   ${ACLOCAL}
   echo "executing ${AUTOCONF}"
   ${AUTOCONF}
   echo "executing ${AUTOMAKE} --add-missing --copy Makefile"
   ${AUTOMAKE} --add-missing --copy Makefile
  )
}

case $mode in
  "" )
    func_fatal_error "no mode specified" ;;

  list )
    func_all_modules
    ;;

  import )
    func_fatal_error "NYI" ;;

  create-testdir )
    if test -z "$destdir"; then
      func_fatal_error "please specify --dir option"
    fi
    mkdir "$destdir"
    test -d "$destdir" \
      || func_fatal_error "could not create destination directory"
    func_create_testdir "$destdir" "$*"
    ;;

  create-megatestdir )
    if test -z "$destdir"; then
      func_fatal_error "please specify --dir option"
    fi
    mkdir "$destdir" || func_fatal_error "could not create destination directory"
    func_create_megatestdir "$destdir" "$*"
    ;;

  test )
    test -n "$destdir" || destdir=testdir$$
    mkdir "$destdir" || func_fatal_error "could not create destination directory"
    func_create_testdir "$destdir" "$*"
    cd "$destdir"
      mkdir build
      cd build
        ../configure
        make
        make check
        make distclean
        remaining=`find . -type f -print`
        if test -n "$remaining"; then
          echo "Remaining files:" $remaining 1>&2
          echo "gnulib-tool: *** Stop." 1>&2
          exit 1
        fi
      cd ..
    cd ..
    rm -rf "$destdir"
    ;;

  megatest )
    test -n "$destdir" || destdir=testdir$$
    mkdir "$destdir" || func_fatal_error "could not create destination directory"
    func_create_megatestdir "$destdir" "$*"
    cd "$destdir"
      mkdir build
      cd build
        ../configure
        make
        make check
        make distclean
        remaining=`find . -type f -print`
        if test -n "$remaining"; then
          echo "Remaining files:" $remaining 1>&2
          echo "gnulib-tool: *** Stop." 1>&2
          exit 1
        fi
      cd ..
    cd ..
    rm -rf "$destdir"
    ;;

  extract-description )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_description "$module"
      fi
    done
    ;;

  extract-filelist )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_filelist "$module"
      fi
    done
    ;;

  extract-dependencies )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_dependencies "$module"
      fi
    done
    ;;

  extract-autoconf-snippet )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_autoconf_snippet "$module"
      fi
    done
    ;;

  extract-automake-snippet )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_automake_snippet "$module"
      fi
    done
    ;;

  extract-include-directive )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_include_directive "$module"
      fi
    done
    ;;

  extract-maintainer )
    for module
    do
      func_verify_module
      if test -n "$module"; then
        func_get_maintainer "$module"
      fi
    done
    ;;

  * )
    func_fatal_error "unknown operation mode --$mode" ;;
esac

exit 0