gpl-compliance-tools/blame-find-by-name.plx
2011-08-30 13:24:39 -04:00

67 lines
2.6 KiB
Perl
Executable file

#!/usr/bin/perl -w
# blame-find-by-name.plx -*- Perl -*-
#
# Copyright (C) 2011 Bradley M. Kuhn <bkuhn@ebb.org>
#
# This software's license gives you freedom; you can copy, convey,
# propogate, redistribute and/or modify this program under the terms of
# the GNU General Public License (GPL) as published by the Free
# Software Foundation (FSF), either version 3 of the License, or (at your
# option) any later version of the GPL published by the FSF.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program in a file in the toplevel directory called
# "GPLv3". If not, see <http://www.gnu.org/licenses/>.
#
use strict;
use warnings;
######################################################################
if (@ARGV != 2) {
print "usage: $0 <BLAME_DATA_FILE> ", "<NAME_REGEX>\n";
exit 1;
}
# Note: $BLAME_DATA_FILE is in the format as output from:
# for i in `find -type f -print | egrep -v '^./.git'`; do
# echo "FILE: $i" >> ../DATA_FILE; git blame -M -M -M -C -C -C -w -f -n -l $i >> ../DATA_FILE
# done
my($BLAME_DATA_FILE, $NAME_REGEX) = @ARGV;
open(DATA_FILE, "<", $BLAME_DATA_FILE) or die "unable to open $BLAME_DATA_FILE for reading: $!";
my %commitsMatchingRegex;
my $currentFile;
while (my $dataLine = <DATA_FILE>) {
if ($dataLine =~ /^\s*FILE\s*:\s*(.*?)\s*$/) {
$currentFile = $1;
} else {
die "invalid line: $dataLine in blame output" unless ($dataLine =~
/^\s*(\S+)\s+\S+\s+\d+\s+\((.+)\s+(\d{4,4}\-\d{2,2}\-\d{2,2}\s+\d{2,2}:\d{2,2}:\d{2,2})\s+([\+\-\d]+)\s+(\d+)\s*\)\s+(.*)$/);
my($commitID, $name, $date, $tz, $curLineNumber, $actualCurrentLine) = ($1, $2, $3, $4, $5, $6);
if ($name =~ /$NAME_REGEX/i) {
$commitsMatchingRegex{$commitID} = { __totalLines => 0 } unless defined $commitsMatchingRegex{$commitID};
$commitsMatchingRegex{$commitID}{$currentFile} = 0 unless defined $commitsMatchingRegex{$commitID}{$currentFile};
$commitsMatchingRegex{$commitID}{$currentFile}++;
$commitsMatchingRegex{$commitID}{__totalLines}++;
}
}
}
close DATA_FILE;
foreach my $commitID (sort { $commitsMatchingRegex{$b}{__totalLines} <=> $commitsMatchingRegex{$a}{__totalLines} } keys %commitsMatchingRegex ) {
print sprintf("%s: %d\n", $commitID, $commitsMatchingRegex{$commitID}{__totalLines});
}
#
# Local variables:
# compile-command: "perl -c blame-find-by-name.plx"
# End: