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#!/usr/bin/perl |
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# very simple program that mimics librsync's rdiff, using the |
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# simple file utility functions. see rdiff2 for the same program, |
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# written using the nonblocking API |
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use File::Rdiff qw(:trace :file); |
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trace_level(LOG_INFO); |
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if ($ARGV[0] eq "signature") { |
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open $base, "<$ARGV[1]" or die "$ARGV[1]: $!"; |
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open $sig, ">$ARGV[2]" or die "$ARGV[2]: $!"; |
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File::Rdiff::sig_file $base, $sig; |
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} elsif ($ARGV[0] eq "delta") { |
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open $sig, "<$ARGV[1]" or die "$ARGV[1]: $!"; |
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open $new, "<$ARGV[2]" or die "$ARGV[2]: $!"; |
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open $delta, ">$ARGV[3]" or die "$ARGV[3]: $!"; |
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$sig = loadsig_file $sig; |
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ref $sig or exit 1; |
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$sig->build_hash_table; |
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File::Rdiff::delta_file $sig, $new, $delta; |
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} elsif ($ARGV[0] eq "patch") { |
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open $base, "<$ARGV[1]" or die "$ARGV[1]: $!"; |
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open $delta, "<$ARGV[2]" or die "$ARGV[2]: $!"; |
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open $new, ">$ARGV[3]" or die "$ARGV[3]: $!"; |
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File::Rdiff::patch_file $base, $delta, $new; |
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} else { |
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print <<EOF; |
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$0 signature BASE SIGNATURE |
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$0 delta SIGNATURE NEW DELTA |
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$0 patch BASE DELTA NEW |
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EOF |
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exit (1); |
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} |
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