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#!/usr/bin/perl
## Script to easily add missing copyright statements in
## GRASS source code files
## 2006, written by Schuyler Erle <schuyler , nocat net>
##
## COPYRIGHT: (C) 2006 by the GRASS Development Team
##
## This program is free software under the GNU General Public
## License (>=v2). Read the file COPYING that comes with GRASS
## for details.
##
## The script searches and opens sequentially all files
## which lack the word "copyright". Additionally the local
## ChangeLog is fetched and contributor names are extracted.
## Then a new header is inserted containing the GPL statement,
## purpose template and authors.
##
## Please run from top source code directory.
## For usage details, see below.
use File::Find;
use File::Basename;
use strict;
use warnings;
use Cwd;
use File::Basename;
#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#
# edit this, and edit the bottom of the file after __END__
# my $editor = "vi -o";
# my $editor = "nedit";
my $editor = "xemacs";
# don't forget to get a copy of
# http://www.red-bean.com/cvs2cl/cvs2cl.pl
# and put it in the same directory as this script
#
# run this script as:
# perl copywrite.pl contributors.csv
# committer identities can be provided in a file on the commandline
# the format of the file should be "username,identity", one per line
# The contributors.csv is already in the main directory of the GRASS
# source code, so it should be found.
####
# to work offline:
# $ export PATH=$PATH:$(pwd)
# $ find . -name main.c | while read i; do \
# echo $i; (cd `dirname $i`; cvs2cl.pl -f ChangeLog.tmp main.c); done
#
# to clean up after:
# $ find -name ChangeLog.tmp | xargs rm
#
# otherwise, this script will assume you are online and fetch
# the ChangeLogs on the fly (and remove them automatically).
#
#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#-=-#
my $ChangeLog = "ChangeLog.tmp";
my $cvs2cl = getcwd . "/cvs2cl.pl -f $ChangeLog";
my $template = do {local $/; <DATA>};
my %identity;
sub evaluate_file {
my $name = do { no warnings; $File::Find::name };
# only process main.c
return unless $_ eq 'main.c';
warn "+ Reading $name\n";
# slurp main.c
my $main_c = do {local $/; open my $F, '<', $_ or die "reading $name: $!"; <$F>};
# continue if main.c is 25 lines or longer
return unless ($main_c =~ y/\n/\n/) >= 25;
# continue if main.c doesn't mention "copyright"
return if $main_c =~ /\(?c\)?opyright/gios;
# run cvs2cl
warn "+ Checking CVS log $name\n";
my $fetched_ChangeLog = 0;
unless (-f $ChangeLog) {
system "$cvs2cl $_" and die "$cvs2cl $_: $!";
$fetched_ChangeLog++;
}
# get the list of contributors
my (%username, %year, $user);
my $original_author = "";
{
# Read whole paras at once
local $/ = "";
open my $LOG, '<', $ChangeLog or die "$ChangeLog: $!";
while (my $line = $LOG) {
# Hack out the pretty printing
$line =~ s/\s+/ /gos;
# And drop trailing spaces
$line =~ s/\s+$//gos;
# Match individual check ins
if ($line =~ /^(\d{4})-\d\d-\d\d\s+\d\d:\d\d\s+(.+)$/gos) {
$year{$1}++;
$user = $2;
$username{$user}++;
}
# Note when a user did the initial check in
# if ($line =~ /^\s+\*\s+[^:]+:\s+(?:initial|new$)/gios) {
# $original_author = $user;
# }
$original_author = $user;
# Note when a contributor submitted code
if ($line =~ /:\s+([^:<]+\s*<[^>]+>)\s*:/gos) {
$username{$1}++;
}
}
}
# don't duplicate the original author
delete $username{$original_author} if $original_author;
#figure out module name
my $fullname = $name;
my $mymodule = basename(dirname($fullname));
# append the list of contributors
my @years = sort map {$_ + 0} keys %year;
my @authors = sort keys %username;
# map committers to identities
@authors = map { exists( $identity{$_} ) ? $identity{$_} : $_ } @authors;
$original_author = $identity{$original_author}
if exists $identity{$original_author};
# execute the template
{
local $" = ", ";
$main_c = eval{
"<<END_OF_TEMPLATE\n" . $template . "\nEND_OF_TEMPLATE" };
}
# write the new version of main.c
warn "+ Rewriting $name\n";
open my $F, '>', $_ or die "writing $name: $!";
print F $main_c;
close F;
# load it up in an editor for vetting
system "$editor $_ $ChangeLog description.html" and die "$editor $_ $ChangeLog: $!";
# delete the ChangeLog after *only* if this script created it
unlink $ChangeLog if $fetched_ChangeLog;
}
# committer identities can be provided in a file on the commandline
# the format of the file should be "username,identity", one per line
#
if ($ARGV[0]) {
while (<>) {
chomp;
next unless /^[a-z]/ios;
my ($user, $id) = split(",", $_, 2);
$identity{$user} = $id;
}
}
find( \&evaluate_file, "." );
### edit the template after __END__
__END__
/****************************************************************************
*
* MODULE: $mymodule
* AUTHOR(S): $original_author (original contributor)
* @authors
* PURPOSE:
* COPYRIGHT: (C) $years[0]-$years[-1] by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
*****************************************************************************/
$main_c
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