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#!/bin/sh -e
# $Id$
# Public domain.  Originally written 2008, Karl Berry.
# Update the tlcritical mini-repository on tug with the critical
# packages.  Also listed in tl-update-containers, unfortunately.
# Run from cron.tl once a month, or whenever specified.

tlcrit=/home/ftp/texlive/tlcritical
recreate=

while test $# -gt 0; do
  case $1 in
  --tlcrit)         shift; tlcrit=$1;;
  --recreate)       recreate=--recreate;;
  --help)           echo "Please read the script, sorry."; exit 0;;
  --*) echo "$0: unrecognized option: $1" >&2; exit 1;;
    *) echo "$0: too many arguments: $1" >&2; exit 1;;
  esac
  shift
done

if test -d "$tlcrit"; then :; else
  echo "$0: tlcrit directory must exist: $tlcrit" >&2
  exit 1
fi

mydir=`cd \`dirname $0\` && pwd`
PATH=$mydir:/usr/local/gnu/bin:/usr/local/bin:$PATH # sha*sum+makensis on tug
master=`cd $mydir/../.. && pwd`

TMPDIR=${TMPDIR-/tmp}
cd $TMPDIR

# function to update one of recovery scripts (sh or exe) in tlcritical.
# 
do_updater ()
{
  type=$1  # sh or exe
  newfile=`ls update-*.$type`
  if test -z "$newfile"; then
    echo "$0: no new file update-*.$type in `pwd`" >&2
    exit 1
  fi
  rm -f $tlcrit/update-*.$type*  # rm old file and checksum
  mv $newfile $tlcrit            # move new file
  #
  # do rest in $tlcrit so we don't just exit from a subshell on failure.
  origdir=`pwd`
  cd $tlcrit
  #
  # make checksum for new file:
  sha512sum $newfile >$newfile.sha512
  # sign it:
  $master/tlpkg/bin/tl-sign-file $newfile.sha512 || exit 1
  #
  # create the generic names as symlinks.  target files must be nonempty.
  test -s $newfile \
    && ln -s $newfile update-tlmgr-latest.$type
  #
  test -s $newfile.sha512 \
    && ln -s $newfile.sha512 update-tlmgr-latest.$type.sha512
  #
  test -s $newfile.sha512.asc \
    && ln -s $newfile.sha512.asc update-tlmgr-latest.$type.sha512.asc
  #
  cd $origdir
}

# additionally disabled packages
moredis=`grep -v '^\s*#' $master/tlpkg/dev/tlnet-disabled-packages.txt \
         | sed -e 's/\s*$//'`
echo "$0: additional packages from via tlnet-disabled-packages.txt: $moredis"

if test -n "$recreate"; then
  echo "$0: $recreate, so cleaning $tlcrit..."
  rm -rf $tlcrit/[^R]* # except README
fi

# update normal containers.
echo "$0: running tl-update-containers (for critical packages)..."
tl-update-containers -location $tlcrit $recreate -all \
  00texlive.installation 00texlive.config texlive.infra tlperl.win32 \
  $moredis

# update Unix disaster recovery.
echo "$0: running tl-makeself-from-tlnet..."
tl-makeself-from-tlnet $tlcrit
do_updater sh

# update the Windows updater executable.
echo "$0: running tl-update-nsis... (logfile: $TMPDIR/makensis.log)"
tl-update-nsis >$TMPDIR/updater.nsi
makensis $TMPDIR/updater.nsi >$TMPDIR/makensis.log
rm -f $TMPDIR/updater.nsi
do_updater exe

ls -lt $tlcrit