#!/bin/sh
# Port of Slackware's emacs.build
#
# Copyright 2006  Lasse Collin (aka Larzhu)
# Copyright 2007  Carlos Corbacho
#
# Build and install GNU emacs for Slackware.
# Before starting, you might want to reduce dependancies in the
# .tgz packages by doing this (no, you really don't want to do this):
#                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#removepkg xaw3d
#rm /usr/lib/libjpeg.so
#rm /usr/lib/libpng.so
#rm /usr/lib/libtiff.so
#rm /usr/lib/libungif.so
# and then replace these things after the build.

PKGNAM=emacs
VERSION=${VERSION:-22.1}
BUILD=${BUILD:-1}

. /etc/pkghelpers
pkghelpers_env

export CFLAGS=$SLKCFLAGS
export LDFLAGS="-s"

# Emacs 22.1 permissions fix
export LOGNAME="root"

PKG=$TMP/package-$PKGNAM
PKG_INFO=$TMP/package-$PKGNAM-info
PKG_LEIM=$TMP/package-$PKGNAM-leim
PKG_LISP=$TMP/package-$PKGNAM-lisp
PKG_MISC=$TMP/package-$PKGNAM-misc
PKG_NOX=$TMP/package-$PKGNAM-nox
umask 0022
rm -rf $PKG $PKG_INFO $PKG_LEIM $PKG_LISP $PKG_MISC $PKG_NOX

cd $TMP
rm -rf $PKGNAM-$VERSION
tar xzvf $CWD/$PKGNAM-$VERSION.tar.gz
cd $PKGNAM-$VERSION

# Make sure ownerships and permissions are sane:
chown -R root:root .
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

# Save some docs:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a BUGS FTP INSTALL README $PKG/usr/doc/$PKGNAM-$VERSION
chmod 644 $PKG/usr/doc/$PKGNAM-$VERSION/*
( cd $PKG/usr/doc/$PKGNAM-$VERSION ; ln -sf /usr/share/$PKGNAM/$VERSION/etc . )

# Build a version of emacs that is not linked to the X11 libraries:
./configure \
  --prefix=/usr \
  --libdir=/usr/lib$LIBDIRSUFFIX \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --with-x=no \
  --with-pop \
  --build=$ARCH-$DISTRO-linux
make -j12 || exit 1
make install DESTDIR=$PKG || exit 1
( cd $PKG/usr/bin ; mv $PKGNAM-$VERSION $PKGNAM-$VERSION-no-x11 )

# OK, now we start over building the full X11 emacs:
./configure \
  --prefix=/usr \
  --libdir=/usr/lib$LIBDIRSUFFIX \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --with-x11 \
  --with-x-toolkit \
  --with-pop \
  --build=$ARCH-$DISTRO-linux
make -j12 || exit 1
make install DESTDIR=$PKG || exit 1
( cd $PKG/usr/bin ; mv $PKGNAM-$VERSION $PKGNAM-$VERSION-with-x11 ; rm -f $PKGNAM )

# This avoids a collision with Exuberant Ctags...
mv $PKG/usr/bin/ctags $PKG/usr/bin/ctags-emacs
mv $PKG/usr/man/man1/ctags.1 $PKG/usr/man/man1/ctags-emacs.1

######################################################################

# Split into separate packages:

# emacs-info:
mkdir -p $PKG_INFO/usr $PKG_INFO/install
mv $PKG/usr/info $PKG_INFO/usr
rm $PKG_INFO/usr/info/dir
cat $CWD/slack-desc.$PKGNAM-info > $PKG_INFO/install/slack-desc

# emacs-leim:
mkdir -p $PKG_LEIM/usr/share/$PKGNAM/$VERSION $PKG_LEIM/install
mv $PKG/usr/share/$PKGNAM/$VERSION/leim $PKG_LEIM/usr/share/$PKGNAM/$VERSION
cat $CWD/slack-desc.$PKGNAM-leim > $PKG_LEIM/install/slack-desc

# emacs-lisp
mkdir -p $PKG_LISP/usr/share/$PKGNAM/$VERSION $PKG_LISP/install
# We cp instead of mv and remove the rest of the duplicates later.
cp -a $PKG/usr/share/$PKGNAM/$VERSION/lisp $PKG_LISP/usr/share/$PKGNAM/$VERSION
find $PKG_LISP \! -type d \! -name "*.el.gz" | xargs rm -f
cat $CWD/slack-desc.$PKGNAM-lisp > $PKG_LISP/install/slack-desc

# emacs-misc:
mkdir -p $PKG_MISC/usr/share/$PKGNAM/$VERSION $PKG_MISC/install
mv $PKG/usr/share/$PKGNAM/$VERSION/etc $PKG_MISC/usr/share/$PKGNAM/$VERSION
mkdir -p $PKG/usr/share/$PKGNAM/$VERSION/etc
mv $PKG_MISC/usr/share/$PKGNAM/$VERSION/etc/DOC-$VERSION.* $PKG/usr/share/$PKGNAM/$VERSION/etc
cat $CWD/slack-desc.$PKGNAM-misc > $PKG_MISC/install/slack-desc

# emacs-nox:
mkdir -p $PKG_NOX/usr/bin $PKG_NOX/install
mv $PKG/usr/bin/$PKGNAM-$VERSION-no-x11 $PKG_NOX/usr/bin
ln -s $PKGNAM-$VERSION-no-x11 $PKG_NOX/usr/bin/$PKGNAM
mkdir -p $PKG_NOX/usr/share/$PKGNAM/$VERSION/etc/
mv $PKG/usr/share/$PKGNAM/$VERSION/etc/DOC-$VERSION.1 $PKG_NOX/usr/share/$PKGNAM/$VERSION/etc
cat $CWD/slack-desc.$PKGNAM-nox > $PKG_NOX/install/slack-desc

# emacs
mkdir -p $PKG/install
ln -s $PKGNAM-$VERSION-with-x11 $PKG/usr/bin/$PKGNAM
mkdir -p $PKG/usr/share/$PKGNAM/$VERSION/leim $PKG/install
cat $CWD/slack-desc.$PKGNAM > $PKG/install/slack-desc
# This will attempt to handle the Exuberant Ctags situation gracefully...
cat $CWD/doinst.sh-$PKGNAM > $PKG/install/doinst.sh

######################################################################
#
# From Slackware's find-el-orphans.sh
#
# This script emits a list of all the .el files for which
# there is no corresponding .elc file, as well as all the
# terminal related .el files, and other special .el files
# suggested by Emacs users over the years.
#
# These should always be installed.

( cd $PKG
  # Seems that all .el.gz files are now also as .elc so this
  # the for-loop below might be unneeded. --Larhzu
  for file in `find usr/share/$PKGNAM -name "*.el.gz"` ; do
    [ ! -e "`echo ${file} | sed s/".gz"//`c" ] && echo "$file"
  done
  # OK, now out with the term .el.gz files:
  find usr/share/$PKGNAM/$VERSION/lisp/term -name "*.el.gz"
  # Next, the user-supplied list:
  echo usr/share/$PKGNAM/$VERSION/lisp/abbrevlist.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/bindings.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/cdl.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/$PKGNAM-lisp/cl-specs.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/emulation/edt-lk201.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/emulation/edt-vt100.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/foldout.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/gnus/nnlistserv.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/international/iso-transl.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/mail/rmailmsc.el.gz
  #echo usr/share/$PKGNAM/$VERSION/lisp/mail/rnews.el.gz
  #echo usr/share/$PKGNAM/$VERSION/lisp/mail/sc.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/misc.el.gz
  echo usr/share/$PKGNAM/$VERSION/lisp/vt-control.el.gz
  #echo usr/share/$PKGNAM/$VERSION/lisp/x-apollo.el.gz
) | sort -u | ( cd $PKG_LISP ; xargs rm -f )

# Then remove the duplicates:
( cd $PKG_LISP ; find usr -type f > filelist.tmp )
( cd $PKG
  find usr -type f > filelist.tmp
  sort filelist.tmp $PKG_LISP/filelist.tmp | uniq -d | xargs rm -f
)
rm -r $PKG/filelist.tmp $PKG_LISP/filelist.tmp

######################################################################

# Make the packages:

cd $PKG
pkghelpers_fixup
pkghelpers_makepkg

cd $PKG_INFO
PKGNAM=emacs-info
pkghelpers_fixup
pkghelpers_makepkg

cd $PKG_LEIM
PKGNAM=emacs-leim
pkghelpers_fixup
pkghelpers_makepkg

cd $PKG_LISP
PKGNAM=emacs-lisp
pkghelpers_fixup
pkghelpers_makepkg

cd $PKG_MISC
PKGNAM=emacs-misc
pkghelpers_fixup
pkghelpers_makepkg

cd $PKG_NOX
PKGNAM=emacs-nox
pkghelpers_fixup
pkghelpers_makepkg