122 lines
2.8 KiB
Perl
Executable File
122 lines
2.8 KiB
Perl
Executable File
#! /usr/bin/perl -w
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use strict;
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use FileHandle;
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use File::Spec;
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use Digest::MD5;
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my $system = "@SYSTEM@";
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my $outdir = File::Spec->rel2abs($ARGV[0]);
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my $netdir = File::Spec->rel2abs($ARGV[1]);
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my %donetmpls = ();
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sub fetchFile {
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my $loc = shift;
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if ($loc =~ /^([+\w\d\.\/-]+)$/) {
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return $1;
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} elsif ($loc =~ /^url\((.*)\)$/) {
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my $url = $1;
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$url =~ /\/([^\/]+)$/ || die "invalid url $url";
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my $fn = "$netdir/$1";
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if (! -f $fn) {
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print "fetching $url...\n";
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system "cd $netdir; wget --quiet -N $url";
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if ($? != 0) {
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unlink($fn);
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die;
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}
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}
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return $fn;
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} else {
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die "invalid file specified $loc";
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}
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}
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sub hashFile {
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my $file = shift;
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open FILE, "< $file" or die "cannot open $file";
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# !!! error checking
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my $hash = Digest::MD5->new->addfile(*FILE)->hexdigest;
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close FILE;
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return $hash;
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}
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sub convert {
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my $descr = shift;
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if (defined $donetmpls{$descr}) {
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return $donetmpls{$descr};
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}
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my ($x, $dir, $fn) = File::Spec->splitpath($descr);
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print "$descr\n";
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my $IN = new FileHandle;
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my $OUT = new FileHandle;
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my $tmpfile = "$outdir/$fn-tmp";
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open $IN, "< $descr" or die "cannot open $descr";
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# Descr([Bind("x", Str("y")), Bind("x", File("1234")), Bind("x", Pkg("1234"))])
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# bindings alphabetisch gesorteerd
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my %bindings;
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while (<$IN>) {
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chomp;
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s/\s*#.*$//;
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next if (/^$/);
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if (/^(\w+)\s*=\s*([^\#\s]*)\s*(\#.*)?$/) {
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my ($name, $loc) = ($1, $2);
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my $file = fetchFile($loc);
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$file = File::Spec->rel2abs($file, $dir);
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my $hash = hashFile($file);
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$bindings{$name} = "File(\"$hash\")";
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} elsif (/^(\w+)\s*<-\s*([+\w\d\.\/-]+)\s*(\#.*)?$/) {
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my $name = $1;
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my $file = $2;
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$file = File::Spec->rel2abs($file, $dir);
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$file = convert($file);
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my $hash = hashFile($file);
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$bindings{$name} = "Pkg(\"$hash\")";
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} elsif (/^(\w+)\s*:\s*([+\w\d\.\/-]+)\s*(\#.*)?$/) {
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my $name = $1;
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my $value = $2;
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$bindings{$name} = "Str(\"$value\")";
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} else {
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die "syntax error: $_";
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}
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}
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close $IN;
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$bindings{"system"} = "Str(\"$system\")";
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open $OUT, "| baffle -wt > $tmpfile" or die "cannot create $tmpfile";
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print $OUT "Descr([";
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my $first = 1;
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foreach my $name (sort (keys %bindings)) {
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if (!$first) { print $OUT ","; };
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print $OUT "Bind(\"$name\",$bindings{$name})";
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$first = 0;
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}
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print $OUT "])";
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close $OUT;
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my $hash = hashFile($tmpfile);
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my $outfile = "$outdir/$fn-$hash";
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rename($tmpfile, $outfile) or die "cannot rename $tmpfile to $outfile";
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$donetmpls{$descr} = $outfile;
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return $outfile;
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}
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for (my $i = 2; $i < scalar @ARGV; $i++) {
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convert(File::Spec->rel2abs($ARGV[$i]));
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}
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