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#!/bin/bash
    dtxname=ctable
    dtxtype=package
        ext=sty
     delete=($dtxname.$ext README.tex doc/\*.tex)
 dtxversion=$(grep " v[0-9.]\+[a-z]\{0,1\} $dtxname $dtxtype" $dtxname.dtx |sed 's/.* v\([0-9.]\+[a-z]\{,1\}\) .*/\1/')
executables=(mk texlog_extract zip getopt pdfseparate pdflatex)

    version=1.00
     myname=$(basename $0)

<<'DOC'
= inst - install ctable

= Synopsis
inst [options]  

Without any options, inst installs ctable in the first writable
TEXMFMAIN, TEXMFLOCAL or TEXMFHOME tree.

Options:
-h,--help       print this help and exit
-H,--Help       print full documentation via less and exit
-V,--version    print version and exit


= Description
inst must be run in its own directory (|./inst|) and then does the following:
- generates the documentation for isodoc,
- installs ctable in one of your TeX trees: TEXMFMAIN, TEXMFLOCAL or TEXMFHOME. 
  The first one writable by you will chosen.
- creates a zip file named |ctable-x.yy.zip| for upload to CTAN
- cleans up

= Author and copyright
Author  Wybo Dekker
Email   U{wybo@dekkerdocumenten.nl}{wybo@dekkerdocumenten.nl}
License Released under the U{www.gnu.org/copyleft/gpl.html}{GNU General Public License}
DOC

    die() { echo -e "$myname: $Err$@$Nor" 1>&2; exit 1; }
   help() { sed -n '/^= Synopsis/,/^= /p' $0|sed '1s/.*/Usage:/;/^= /d'; exit; }
helpall() { sed -n '/^<<.DOC.$/,/^DOC$/p' $0|sed -n '1d;$d;p'|less; exit; }
version() { echo $version; exit; }

Nor='\e[0m'    # reset color    ]
Err='\e[31;1m' # light red      ]

setdir() { # create installation directory
   for i in MAIN LOCAL HOME; do
      tree=$(kpsewhich --expand-var \$TEXMF$i)
      test -w $tree && break
      tree=
   done
   [[ -n $tree ]] || die "Could not find a writable TeX tree"
   insttex=${tree}/tex/latex/$dtxname
   instsrc=$tree/source/latex/$dtxname
   instdoc=$tree/doc/latex/$dtxname
   mkdir -p $insttex || die could not create $insttex
   mkdir -p $instsrc || die could not create $instsrc
   mkdir -p $instdoc || die could not create $instdoc
}

testexecs() { # test presence of executables
   for i in ${executables[*]}; do
      type $i &> /dev/null || die executable $i not found
   done
}

readme() { # generate the README file
sed -n '/^%<\*readme>/,/^%<\/readme>/p
        /\\changes{v'$dtxversion'}/,/^% }/p' $dtxname.dtx  |
sed    's/^%//;s/\\\\$//
        / Author:/i\
Version:| '$dtxversion'
        /<.readme>/d
        /^ }/d
        s/ \\changes.*/Changes in version '$dtxversion':/
        s/$\\Rightarrow\$/=>/g
        s/\\textbackslash/\\/g
        s/\\text\(sl\|it\){\([^}]\+\)}/\/\2\//g         # \textsl{...} -> /.../
        s/{\([^}]*\)}/\1/g                              # keep last, removes all {...}
       ' >README
  grep "Changes in version" README >/dev/null || die changes not detected
}

makeall() {
   grep '%<\*install>' $dtxname.dtx >/dev/null && # for self-extracting dtx files
      delete+=($dtxname.ins) ||
      echo y |tex $dtxname.ins >/dev/null

   # install any .ttf files
   mkdir -p ~/.fonts
   find doc -name '*.ttf' -exec cp {} ~/.fonts \;
   fc-cache ~/.fonts

   readme # create the README file

   # compile all examples
   cd doc
   ln -sf ../$dtxname.sty || exit 1 # use the version to be installed
   for i in [0-9][0-9]?; do 
      if [ ! -f $i.pdf -o ! -f s$i.pdf ]; then
         ./doit || exit 1
         break
      fi
   done
   cd ..
  
   mk --noprint --noview $dtxname.dtx && mk -c $dtxname.dtx # make $dtxname.pdf
}

installall() {
   # install and cleanup
   echo installing in $tree

   rm -rf $insttex/* $instsrc/* $instdoc/*
   find doc \( -type l -o -name '*.pdf' \) -delete
   cp -f $dtxname.$ext $insttex
   cp -a $dtxname.{ins,dtx} $instsrc
   cp -a README inst $dtxname.pdf $instdoc
   mktexlsr $tree 2>/dev/null
   for i in ${delete[@]}; do rm -f $i; done 
   cd ..
   zipfile=$dtxname/$dtxname-$dtxversion.zip
   rm -f $zipfile
   zip -rq $zipfile $dtxname/* -x $dtxname/test\*
   cd $dtxname
}

options=$(getopt \
   -n $myname \
   -o hHV \
   -l help,Help,version \
   -- "$@"
) || exit 1
eval set -- "$options"
while [ $# -gt 0 ]; do
   case $1 in
   (-h|--help)    help;;
   (-H|--Help)    helpall;;
   (-V|--version) version;;
   (--)           shift;  break;;
   (*)                    break;;
   esac
done
[[ -z $1 ]] || die No arguments expected

testexecs
setdir
makeall
installall

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