JezK
Edit File: texlinks
#!/bin/sh # $Id: texlinks.sh 53554 2020-01-26 23:58:37Z karl $ # 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.sh 53554 2020-01-26 23:58:37Z karl $' 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/> ' # 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 "$@"; "$@"; } # 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 if $silent; then :; else # i.e., the rm failed. errmsg "install_link $src -> $dest failed: file already exists." fi else if echo "$src" | grep '/pdfcsplain$' >/dev/null; then # at p.olsak insistence: we have three pdfcsplain entries in # fmtutil.cnf with different engines, but the executable link # must point to pdftex. verbose_echo "forcing pdfcsplain destination to be pdftex" dest=pdftex$exeext fi 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