mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-11 09:20:51 +00:00
245 lines
6.8 KiB
Perl
Executable File
245 lines
6.8 KiB
Perl
Executable File
#! /usr/bin/perl
|
|
|
|
# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
#
|
|
# This file is part of GNU Emacs.
|
|
#
|
|
# GNU Emacs is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2, or (at your option)
|
|
# any later version.
|
|
#
|
|
# GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the
|
|
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
# Boston, MA 02111-1307, USA.
|
|
|
|
|
|
# Extract entries from ChangeLogs matching specified criteria.
|
|
# Optionally format the resulting output to a form suitable for RCS
|
|
# logs, like they are used in Emacs, for example. In this format,
|
|
# author lines, leading spaces, and file names are removed.
|
|
|
|
require 5;
|
|
use strict;
|
|
|
|
# Parse command line options.
|
|
|
|
use vars qw($author $regexp $exclude $from_date $to_date
|
|
$rcs_log $with_date $version $help $reverse
|
|
@entries);
|
|
|
|
use Getopt::Long;
|
|
my $result = GetOptions ("author=s" => \$author,
|
|
"text=s" => \$regexp,
|
|
"exclude=s" => \$exclude,
|
|
"from-date=s" => \$from_date,
|
|
"to-date=s" => \$to_date,
|
|
"rcs-log" => \$rcs_log,
|
|
"with-date" => \$with_date,
|
|
"reverse!" => \$reverse,
|
|
"version" => \$version,
|
|
"help" => \$help);
|
|
|
|
# If date options are specified, check that they have the format
|
|
# YYYY-MM-DD.
|
|
|
|
$result = 0 if $from_date && $from_date !~ /^\d\d\d\d-\d\d-\d\d$/;
|
|
$result = 0 if $to_date && $to_date !~ /^\d\d\d\d-\d\d-\d\d$/;
|
|
|
|
# Print usage information and exit when necessary.
|
|
|
|
if ($result == 0 || $help) {
|
|
print <<USAGE;
|
|
Usage: $0 [options] [CHANGELOG...]
|
|
Print entries in ChangeLogs matching various criteria. Valid options
|
|
are
|
|
|
|
--author=AUTHOR match entries whose author line matches
|
|
regular expression AUTHOR
|
|
--text=TEXT match entries whose text matches regular
|
|
expression TEXT.
|
|
--exclude=TEXT exclude entries matching TEXT.
|
|
--from-date=YYYY-MM-DD match entries not older than given date
|
|
--to-date=YYYY-MM-DD match entries not younger than given date
|
|
--rcs-log format output suitable for RCS log entries.
|
|
--with-date print short date line in RCS log
|
|
--reverse show entries in reverse (chronological) order
|
|
--version print version info
|
|
--help print this help
|
|
|
|
If no CHANGELOG is specified scan the files "ChangeLog" and
|
|
"ChangeLog.[9-1]" in the current directory. Old-style dates in ChangeLogs
|
|
are not recognized.
|
|
USAGE
|
|
exit $help ? 0 : 1;
|
|
}
|
|
|
|
# Print version info and exit if `--version' was specified.
|
|
|
|
if ($version) {
|
|
print "0.1\n";
|
|
exit 0;
|
|
}
|
|
|
|
|
|
# Value is non-zero if HEADER matches according to command line
|
|
# options specified, i.e. it matches $author, and its date is in
|
|
# the range $from_date <= date <= $to_date.
|
|
|
|
sub header_match_p ($) {
|
|
my $header = shift;
|
|
|
|
return 0 unless $header;
|
|
|
|
# No match if AUTHOR-regexp specified and doesn't match.
|
|
return 0 if $author && $header !~ /$author/;
|
|
|
|
# Check that the date of the entry matches if date options
|
|
# `--from-date' and/or `--to-date' were specified . Old-style
|
|
# dates in ChangeLogs are not recognized, and never match.
|
|
if ($from_date || $to_date) {
|
|
if ($header =~ /^(\d\d\d\d-\d\d-\d\d)/) {
|
|
my $date = $1;
|
|
return 0 if $from_date && $date lt $from_date;
|
|
return 0 if $to_date && $date gt $to_date;
|
|
} else {
|
|
# Don't bother recognizing old-style dates.
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
# Value is non-zero if ENTRY matches the criteria specified on the
|
|
# command line, i.e. it matches $regexp, and it doesn't match
|
|
# $exclude.
|
|
|
|
sub entry_match_p ($) {
|
|
my $entry = shift;
|
|
|
|
return 0 unless $entry;
|
|
|
|
if ($regexp) {
|
|
return 1 if ($entry =~ /$regexp/
|
|
&& (!$exclude || $entry !~ $exclude));
|
|
} else {
|
|
return 1 if !$exclude || $entry !~ $exclude;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
# Print HEADER and/or ENTRY in a format suitable for what was
|
|
# specified on the command line. If $rcs_log is specified, author
|
|
# lines are not printed, and leading spaces and file names are removed
|
|
# from ChangeLog entries.
|
|
|
|
sub print_log ($$) {
|
|
my ($header, $entry) = @_;
|
|
my $output = '';
|
|
|
|
if ($rcs_log) {
|
|
# Remove leading whitespace from entry.
|
|
$entry =~ s/^\s+//mg;
|
|
# Remove file name parts.
|
|
$entry =~ s/^\*.*\(/(/mg;
|
|
# Remove file name parts, 2.
|
|
$entry =~ s/^\*.*://mg;
|
|
if ($with_date) {
|
|
$header =~ /(\d\d\d\d-\d\d-\d\d)/;
|
|
$output = "!changelog-date $1\n";
|
|
}
|
|
$output .= $entry;
|
|
} else {
|
|
$output .= $header . $entry;
|
|
}
|
|
|
|
if ($reverse) {
|
|
push @entries, $output;
|
|
} else {
|
|
print $output;
|
|
}
|
|
}
|
|
|
|
# Scan LOG for matching entries, and print them to standard output.
|
|
|
|
sub parse_changelog ($) {
|
|
my $log = shift;
|
|
my $entry = undef;
|
|
my $header = undef;
|
|
|
|
@entries = () if $reverse;
|
|
|
|
# Open the ChangeLog.
|
|
open (IN, "< $log") || die "Cannot open $log: $!";
|
|
|
|
while (defined(my $line = <IN>)) {
|
|
if ($line =~ /^\S/) {
|
|
# Line is an author-line. Print previous entry if
|
|
# it matches.
|
|
print_log ($header, $entry)
|
|
if header_match_p ($header) && entry_match_p ($entry);
|
|
|
|
$entry = "";
|
|
$header = $line;
|
|
|
|
# Add empty lines below the header.
|
|
while (defined($line = <IN>) && $line =~ /^\s*$/) {
|
|
$header = "$header$line";
|
|
}
|
|
}
|
|
|
|
last unless defined $line;
|
|
|
|
if ($line =~ /^\s*\*/) {
|
|
# LINE is the first line of a ChangeLog entry. Print
|
|
# previous entry if it matches.
|
|
print_log ($header, $entry)
|
|
if header_match_p ($header) && entry_match_p ($entry);
|
|
$entry = $line;
|
|
} else {
|
|
# Add LINE to the current entry.
|
|
$entry = "$entry$line";
|
|
}
|
|
}
|
|
|
|
# Print last entry if it matches.
|
|
print_log ($header, $entry)
|
|
if header_match_p ($header) && entry_match_p ($entry);
|
|
|
|
close IN;
|
|
|
|
if ($reverse) {
|
|
while (defined (my $entry = pop @entries)) {
|
|
print $entry;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
# Main program. Process ChangeLogs.
|
|
|
|
# If files were specified on the command line, parse those files in the
|
|
# order supplied by the user; otherwise parse default files ChangeLog and
|
|
# ChangeLog.9...ChangeLog.1 according to $reverse.
|
|
unless (@ARGV > 0) {
|
|
@ARGV = ("ChangeLog", map {"ChangeLog.$_"} reverse 1..9);
|
|
@ARGV = reverse @ARGV if $reverse;
|
|
}
|
|
|
|
while (defined (my $log = shift @ARGV)) {
|
|
parse_changelog ($log) if -f $log;
|
|
}
|
|
|
|
|
|
# grep-changelog ends here.
|