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-#!/bin/sh
-# $Id: texlinks 18035 2010-04-28 17:41:52Z mpg $
-
-# Thomas Esser, 1999, 2002, 2003. public domain.
-
-# texlinks: script to maintain symlinks from format to engine. Interprets
-# the lines given in fmtutil.cnf.
-
-# History:
-# (Further changes in ChangeLog.)
-# Tue Oct 9 14:23:01 BST 2007
-# Added unlink option (-u) to aid OpenBSD package uninstall
-# Edd Barrett <vext01@gmail.com>
-# Sun Aug 28 21:41:06 CEST 2005
-# remove special cases for csplain,cslatex,pdfcslatex,pdfcsplain
-# Fr Apr 8 19:15:05 CEST 2005
-# cleanup now has an argument for the return code
-# So Mar 27 18:52:06 CEST 2005
-# honor $TMPDIR, $TEMP and $TMP, not just $TMP
-# Mon May 10 20:52:48 CEST 2004
-# kpseaccess instead of access
-# Thu Dec 25 22:11:53 CET 2003, te:
-# add version string
-# Tue Apr 9 22:46:34 CEST 2002, te:
-# do not create symlinks for cont-??, metafun and mptopdf
-
-test -f /bin/sh5 && test -z "$RUNNING_SH5" \
- && { UNAMES=`uname -s`; test "x$UNAMES" = xULTRIX; } 2>/dev/null \
- && { RUNNING_SH5=true; export RUNNING_SH5; exec /bin/sh5 $0 ${1+"$@"}; }
-unset RUNNING_SH5
-
-test -f /bin/bsh && test -z "$RUNNING_BSH" \
- && { UNAMES=`uname -s`; test "x$UNAMES" = xAIX; } 2>/dev/null \
- && { RUNNING_BSH=true; export RUNNING_BSH; exec /bin/bsh $0 ${1+"$@"}; }
-unset RUNNING_BSH
-
-export PATH
-
-# hack around a bug in zsh:
-test -n "${ZSH_VERSION+set}" && alias -g '${1+"$@"}'='"$@"'
-
-version='$Id: texlinks 18035 2010-04-28 17:41:52Z mpg $'
-progname=texlinks
-cnf=fmtutil.cnf # name of the config file
-
-usage='Usage: texlinks [OPTION]... [DIRECTORY]...
-
-Create symbolic links format -> engine according to fmtutil setup.
-
-Mandatory arguments to long options are mandatory for short options too.
- -e, --exeext EXT append EXT to symlink targets (default: none)
- -f, --cnffile FILE use FILE as config file (default: fmtutil.cnf)
- -m, --multiplatform operate in all platform specific directories
- (default: operate only in directory for this platform)
- -q, --quiet silently skip existing scripts / binaries
- (default: issue warning)
- -s, --silent same as -q
- -u, --unlink remove symlinks created by texlinks
- -v, --verbose enable verbose messages (default: off)
- -h, --help show this help text
- --version show version string
-
-The DIRECTORY arguments are an optional list of directories in which to
-operate. If no directories are specified and --multiplatform is
-likewise not specified, the directory of this script itself is used.
-With --multiplatform, all child dirs of an upper-level bin/ dir are used.
-
-Report bugs to: tex-k@tug.org
-TeX Live home page: <http://tug.org/texlive/>
-'
-
-###############################################################################
-# abort(errmsg)
-# print `errmsg' to stderr and exit with error code 1
-###############################################################################
-abort() { errmsg "texlinks: $1."; cleanup 1; }
-
-# error message to stderr:
-errmsg() { echo "$@" >&2; }
-
-# give message to stderr only if "verbose" mode is on:
-verbose_echo() { $verbose && errmsg "$@"; }
-
-# in verbose mode: show command that is executed:
-verbose_do() { verbose_echo "$@"; "$@"; }
-
-###############################################################################
-# cleanup()
-# clean up the temp area and exit with proper exit status
-###############################################################################
-cleanup()
-{
- rc=$1
- $needsCleanup && test -n "$tmpdir" && test -d "$tmpdir" \
- && { rm -f "$tmpdir"/*; cd /; rmdir "$tmpdir"; }
- exit $rc
-}
-
-###############################################################################
-# setupTmpDir()
-# set up a temp directory and a trap to remove it
-###############################################################################
-setupTmpDir()
-{
- $needsCleanup && return
-
- trap 'cleanup 1' 1 2 3 7 13 15
- needsCleanup=true
- (umask 077; mkdir "$tmpdir") \
- || abort "could not create directory \`$tmpdir'"
-}
-
-
-# search a binary along $PATH:
-check_for_binary()
-{
- testbin=$1
- set x `echo "$PATH" | sed 's/^:/.:/; s/:$/:./; s/::/:.:/g; s/:/ /g'`; shift
- for i
- do
- if [ -x "$i/$testbin" ]; then
- echo "$i/$testbin"
- return 0
- fi
- done
- return 1
-}
-
-
-###############################################################################
-# install_link(dest src)
-# create a symlink like ln -s dest src, but make sure that src is not
-# an existing binary, possibly adding the executable extension if
-# passed on the command.
-###############################################################################
-install_link()
-{
- # make symlink src -> dest
- dest=$1; src=$2
-
- case $src in
- */mf)
- if test "$dest" = mf-nowin; then
- if test -f $selfautoloc/mfw; then
- dest=mfw # name for windows-enabled mf, once upon a time
- verbose_echo "both mfw and mf-nowin exists, $src linked to $dest"
- fi
- if test -f $selfautoloc/mf && test -f $selfautoloc/mf-nowin; then
- # have both mf and mf-nowin binaries. no link.
- verbose_echo "skipped metafont symlink $src -> $dest (special case)"
- return
- fi
- fi
- ;;
- esac
-
- # append .exe if supplied (for cygwin).
- test -n "$exeext" && dest="$dest$exeext"
-
- case $src in
- */cont-??|*/mptopdf)
- # context includes wrapper scripts that create/run these.
- verbose_echo "skipped ConTeXtish symlink $src -> $dest (special case)"
- ;;
- *)
- test "x$src" != "x`(ls -ld $src | awk '{print $NF}') 2>/dev/null`" &&
- rm -f "$src"
-
- if test -f "$src"; then
- case $silent in
- true)
- ;;
- *)
- errmsg "install_link $src -> $dest failed: file already exists."
- ;;
- esac
- else
- verbose_do ln -s "$dest" "$src"
- fi
- ;;
- esac
-}
-
-###############################################################################
-# search_symlinkdir()
-# look if $PATH has only symlinks to the real binaries and find that
-# directory. Also check if this directory is writable.
-###############################################################################
-search_symlinkdir()
-{
- kpsewhich=`check_for_binary kpsewhich`
- test -z "$kpsewhich" && return 1
- symlinkdir=`echo $kpsewhich | sed 's@/*kpsewhich$@@'`
- kpseaccess -w "$symlinkdir" || return 1
- touch "$symlinkdir/tl$$"
- if test -f "$selfautoloc/tl$$"; then
- rm -f "$symlinkdir/tl$$"
- return 1
- else
- rm -f "$symlinkdir/tl$$"
- return 0
- fi
-}
-
-###############################################################################
-# upd_symlinkdir()
-# if $PATH has only symlinks to the real binaries, update that directory
-# that holds the symlinks
-###############################################################################
-upd_symlinkdir()
-{
- search_symlinkdir || return 0
- for i in `sed 's@ .*@@' cnf_file_ln.$$`; do
- install_link "$selfautoloc/$i" "$symlinkdir/$i"
- done
-}
-
-###############################################################################
-# rm_link()
-# Delete a previously installed link
-###############################################################################
-rm_link()
-{
- link=$1;
- if test -e $link; then
- if test -h $link; then
- verbose_do rm -Rf $link
- else
- verbose_echo "kept $link, since not a symlink"
- fi
- else
- verbose_echo "skipped $link, non-existent"
- fi
-}
-
-###############################################################################
-# main()
-# parse commandline arguments, initialize variables,
-# switch into temp. direcrory, execute desired command
-###############################################################################
-main()
-{
- cnf_file= # global variable: full name of the config file
- dirs=
- needsCleanup=false
-
- exeext=
- multiplatform=false
- verbose=false
- unlink=false
- silent=false
- thisdir=`pwd`
- : ${KPSE_DOT=$thisdir}; export KPSE_DOT
- selfautoloc=`kpsewhich --expand-var='$SELFAUTOLOC'`
- while
- case $1 in
- --h*|-h)
- echo "$usage"; exit 0;;
- --version)
- echo "$progname version $version"; exit 0;;
- --cnffile|-f)
- shift; cnf_file=$1;;
- --e*|-e) shift; exeext=$1;;
- --m*|-m) multiplatform=true;;
- --s*|-s|--q*|-q) silent=true;;
- --u*|-u) unlink=true;;
- --v*|-v) verbose=true;;
- -*) errmsg "fmtutil: unknown option \`$1' ignored.";;
- *) break;;
- esac
- do test $# -gt 0 && shift; done
- dirs="$*"
-
- # if no cnf_file from command-line, look it up with kpsewhich:
- test -z "$cnf_file" && cnf_file=`kpsewhich --format='web2c files' $cnf`
- test -f "$cnf_file" || abort "config file \`$cnf' not found"
-
-
- tmpdir=${TMPDIR-${TEMP-${TMP-/tmp}}}/texlinks.$$
- setupTmpDir
- cd "$tmpdir" || cleanup 1
-
- sed '/^[ ]*#/d; /^[ ]*$/d' $cnf_file \
- | awk '{print $1, $2}' > cnf_file_ln.$$
-
- if test -z "$dirs"; then
- if test $multiplatform = true; then
- case $selfautoloc in
- */bin) dirs=$selfautoloc;;
- *) parent=`kpsewhich --expand-var='$SELFAUTODIR'`
- dirs=`find $parent -type f -name kpsewhich -print \
- | sed 's@/kpsewhich$@@'`;;
- esac
- else
- dirs=$selfautoloc
- fi
- fi
-
- for d in $dirs; do
- kpseaccess -w $d \
- || { errmsg "$d: no write permissions. Skipping..."; continue; }
- # cnf_file_ln.$$ has lines with "format engine" pairs
- set x `cat cnf_file_ln.$$`; shift
- while test $# != 0; do
- fmt=$1; engine=$2; shift; shift
-
- # Some broken shells destroy the positional arguments when calling a
- # shellfunction. Therefore, we save and restore them "by hand" in the
- # main_args_while variable.
- main_args_while="$@"
-
- test "x$fmt" = "x$engine" && continue
- if test -f "$d/$engine$exeext"; then
- case $unlink in
- true)
- rm_link "$d/$fmt";;
- *)
- install_link "$engine" "$d/$fmt";;
- esac
- else
- verbose_echo "skipped $d/$engine, engine does not exist"
- fi
-
- # restore positional arguments:
- set x $main_args_while; shift
-
- done
- done
- upd_symlinkdir
-}
-
-main ${1+"$@"}
-
-# set successful return code
-cleanup 0