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#!/usr/bin/env perl
# $Id$
# Return information given a TL package name (i.e., a tpm file name).
# We use local copies of CTAN and the TeX Catalogue.
#
exit (&main ());
sub main
{
$CTAN = $ENV{"CTAN"} || "/home/ftp/tex-archive";
$TMPDIR = $ENV{"TMPDIR"} || "/tmp";
$CATALOGUE = $ENV{"TEX_CATALOGUE"} || "/home/httpd/html/catalogue/entries";
-d "$CATALOGUE/k"
|| die "$0: TEX_CATALOGUE ($CATALOGUE) must point to entries/ subdir"
. " of a TeX Catalogue checkout.\n";
if ($ARGV[0] eq "--ctan-dir") {
return &find_ctan_dir ($ARGV[1]);
} elsif ($ARGV[0] eq "--ctan-root") {
print "$CTAN\n";
return 0;
} else {
die "Usage: $0 --ctan-dir PKGNAME or --ctan-root (not \"@ARGV\").\n";
}
}
#
# Return 0 for success if we find a path (and print it on stdout), else
# return 1.
#
sub find_ctan_dir
{
my ($me) = @_;
return 1 unless $me;
# regrettably, this list of amslatex packages is duplicated in ctan2tl.
# unavoidable since ctan throws them all together, but we don't want
# to, to preserve the package-per-directory name.
if ($me =~ /^(ams|amscls|amsltx2|amsmath|amsrefs)$/) {
$me = "amslatex";
}
# The CTAN path to a package is sometimes stored in the TeX Catalogue,
# but old entries don't have it, etc. Still, we want to use it if present.
my $ctan_dir = &catalogue_find_ctan_path ($me);
if (! $ctan_dir) {
# fall back on many special cases
(my $menobin = $me) =~ s,^bin-,,;
(my $menopowerdot = $me) =~ s,^powerdot-,,;
(my $menotype1 = $me) =~ s,-type1$,,;
for my $dir (
"macros/latex/contrib/$me", # most everything
"macros/latex/contrib/\L$me", # HA-prosper
"macros/latex/contrib/powerdot/contrib/$menopowerdot", # powerdot-doc-vn
"macros/latex/exptl/$me", # semioneside
"macros/latex/required/$me", # babel
"macros/plain/$me", # plnfss
"macros/xetex/latex/$me", # xetex
"macros/generic/$me", # abbr
"macros/generic/diagrams/$me", # circ
"macros/$me", # eplain
"support/$me", # thumbpdf
"support/$menobin", # bin-thumbpdf
"language/vietnamese/$me/unpacked", # vntex
"language/hyphenation/$me", # bghyphen
"language/hebrew/$me", # cjhebrew
"language/greek/package-babel/$me", # ibycus-babel
"language/devanagari/$me", # velthuis
"language/croatian/$me", # hrlatex
"language/coptic/$me", # cbcoptic
"info/spanish/$me", # guia-bibtex
"info/symbols/$me", # comprehensive
"info/math/voss/$me", # mathmode
"info/bibtex/$me", # tamethebeast
"info/$me", # Type1fonts
"help/$me", # es-tex-faq
"graphics/$me", # sparklines
"graphics/metapost/contrib/macros/$me", # mpattern
"graphics/pstricks/contrib/pedigree/$me", # pst-pdgr
"graphics/pstricks/contrib/$me", # pstricks-add
"fonts/$me", # MnSymbol
"fonts/utilities/$me", # accfonts
"fonts/ps-type1/$me", # cm-super
"fonts/ps-type1/$menotype1", # esint-type1
"fonts/greek/$me", # lfb
"fonts/gothic/$me", # blacklettert1
"fonts/cyrillic/$me/texmf", # lh
"fonts/chess/$me", # skaknew
"biblio/bibtex/contrib/$me", # dk-bib
) {
if (-d "$CTAN/$dir") {
$ctan_dir = $dir;
last;
}
}
# names totally dissimilar
$ctan_dir = "fonts/fourier-GUT" if $me eq "fourier";
$ctan_dir = "graphics/pdftex" if $me eq "pdftex-def";
$ctan_dir = "info/biblio" if $me eq "beebe";
$ctan_dir = "info/epslatex/french" if $me eq "epslatex-fr";
$ctan_dir = "info/italian/amsldoc" if $me eq "amsldoc-it";
$ctan_dir = "info/italian/amsthdoc" if $me eq "amsthdoc-it";
$ctan_dir = "info/tex-references" if $me eq "tex-refs";
$ctan_dir = "info/translations/vn" if $me eq "ntheorem-vn";
$ctan_dir = "language/armenian/armtex" if $me eq "armenian";
$ctan_dir = "language/basque" if $me eq "hyphen-basque";
$ctan_dir = "language/hungarian/babel" if $me eq "magyar";
$ctan_dir = "language/hyphenation/elhyphen" if $me eq "hyphen-greek";
$ctan_dir = "macros/latex/contrib/misc" if $me eq "ltxmisc";
$ctan_dir = "macros/generic" if $me eq "genmisc";
# do last, for sake of subdirs above.
$ctan_dir = "language/hyphenation"
if $me =~ /^hyphen-/ && ! $ctan_dir;
}
# prepend ctan root if not an absolute dir (this happens when we make
# a temp dir).
$ctan_dir = "$CTAN/$ctan_dir" if $ctan_dir =~ m,^[^/],;
print "$ctan_dir\n" if $ctan_dir;
return $ctan_dir ? 0 : 1;
}
# look up ctan path for given package name in catalogue entry.
# xml is too hard to parse, so just look for the <ctan path...> entry.
# Sometimes there is a single file, but worry about that later.
#
# Return the ctan path if found (without leading /), or undef.
#
sub catalogue_find_ctan_path
{
my ($pkgname) = @_;
my $firstchar = substr ($pkgname, 0, 1);
my $catfile = "$CATALOGUE/$firstchar/$pkgname.xml";
return undef unless -r $catfile;
# get the raw line from the catalogue file. (let's hope it's one line.)
my $ctan_path = `sed -n "s,^ *<ctan path='/,,p" $catfile`;
return undef unless $ctan_path; # in case it's not present at all
# extract just the dir or file name, without options, etc.
(my $ctan_loc = $ctan_path) =~ s,'/>,,;
$ctan_loc =~ s,' .*,,;
chomp ($ctan_loc);
# if the Catalogue lists the path as a single file, there are two
# possibilities: (1) it really is a single file, e.g., texilikecover,
# in which case we copy that file into a temp dir and return that temp
# dir; (2) it is actually in its own directory, e.g., ifxetex, in
# which case we return undef here and let the code above find it.
# (The Catalogue maintainers do not consider this a problem for
# various reasons.)
#
if ($ctan_path =~ /file='true'/) {
return undef if $ctan_path =~ m,/$pkgname/,; # pkg dir somewhere in path
# ok, we will copy to temp dir.
my $pkgdir = "$TMPDIR/tl.$pkgname";
system ("rm -rf $pkgdir");
mkdir ($pkgdir, 0777);
warn "$0: copying single file:\n";
warn "$0: $CTAN/$ctan_loc\n";
unless (system ("cp -p '$CTAN/$ctan_loc' '$pkgdir/'") == 0) {
warn "$0: copy of $CTAN/$ctan_loc to $pkgdir failed?!\n";
return undef;
}
return $pkgdir;
}
# ok, we will use the ctan path.
return $ctan_loc;
}
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