c7d68b4b70
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5079 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
82 lines
1.9 KiB
Perl
Executable File
82 lines
1.9 KiB
Perl
Executable File
#!/usr/bin/perl -w
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###############################################################################
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# Name: difflast.pl
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# Purpose: Shows the difference between the current local version of the file
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# and the last cvs revision
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# Version: $Id$
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# Author: VZ
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# Created: 23.12.99
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# Copyright:(c) Vadim Zeitlin 1999
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###############################################################################
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use strict;
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my $CVS = "cvs -z3"; # the cvs command
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sub dec_rev($)
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{
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my $rev = $_[0];
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# decrement the revision number to get the previos one
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# (FIXME this is totally bogus, won't work with branches)
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my $revlen = length($rev) - rindex($rev, '.') - 1;
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my $m = 10**$revlen;
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return int($rev) . "." . ($rev*$m - int($rev)*$m - 1)
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}
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sub get_last_rev($)
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{
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my $file = $_[0];
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my $basename = $file;
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$basename =~ s@^.*/([^/]\+)@$1@;
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# first get the current version: try the Id RCS tag in the file itself
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# first, use "cvs status" if this fails
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if ( open(INPUT, $file) ) {
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while (<INPUT>) {
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# notice that we shouldn't have '$' followed by 'Id' or cvs will
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# substitute it!
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if ( /\$(Id): $basename,v (\d+\.\d+)/ ) {
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return &dec_rev($2);
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}
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}
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}
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open(INPUT, "$CVS -q status $file |") or return 0;
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while (<INPUT>) {
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if ( /Working revision:\s+(\d+\.\d+)/ ) {
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return &dec_rev($1);
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}
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}
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return 0;
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}
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sub process_file($)
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{
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my $file = $_[0];
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my $revlast = &get_last_rev($file);
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if ( !$revlast ) {
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warn "Failed to get the last revision for $file, skipping.\n"
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}
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elsif ( $revlast =~ "\.0" ) {
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warn "No previous revision of the file $file.\n"
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}
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else {
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print `$CVS diff -b -kk -r $revlast $file`;
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}
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}
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# entry point
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die "Usage: $0 <filenames...>\n" if ( $#ARGV == -1 );
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foreach my $file (@ARGV) { process_file($file); }
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exit 0;
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