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45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
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#!/usr/bin/perl
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# converts output of BSD tar(1) into GNU tar compatible format
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# tries to support localization
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# bug reports are welcome!
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# Version 0.01 26.07.1999 Dominik Brettnacher <domi@saargate.de>
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# we need POSIX::strftime to find out the national abbreviations for
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# month names (used by BSD tar)
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use POSIX qw(strftime);
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for(0..11)
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{
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$Month{POSIX::strftime("%b", 0, 0, 0, 1, $_, 0)} = $_ + 1;
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}
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while(<>)
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{
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m/^(.*) (.{6}) ([0-9 ]{2}:\d{2}) (\d{4}) (.*)/ || die "regular expression did not match, please report";
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($day,$month) = month_or_mday_first($2);
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printf("%s %i-%02i-%02i %s %s\n",$1,$4,$Month{$month},$day,$3,$5);
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}
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# BSD tar uses a quite "different" way to output the date, roughly:
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# $date = strftime("%c", ...);
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# $date = substr($date,4,12) . " " . substr($date,20,4);
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# as it uses localization, we must try to find out whether mday is printed
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# before or after the month name itself. this seems to be a solution:
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sub month_or_mday_first
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{
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if($_[0] =~ m/([0-9 ]{2}) (.{3})/)
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{
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return ($1, $2);
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}
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elsif($_[0] =~ m/(.{3}) ([0-9 ]{2})/)
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{
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return ($2, $1);
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}
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else
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{
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die "invalid date format $_[0]";
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}
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}
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