--- /dev/null
+#! /usr/local/bin/perl
+# $Id: grep-changelog,v 1.19 1999/08/10 13:22:23 gerd Exp $
+
+# Copyright (C) 1999 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;
+
+# Parse command line options.
+
+use Getopt::Long;
+$result = GetOptions ("author=s" => \$author,
+ "text=s" => \$regexp,
+ "exclude=s" => \$exclude,
+ "from-date=s" => \$from_date,
+ "to-date=s" => \$to_date,
+ "rcs-log" => \$rcs_log,
+ "with-date" => \$with_date,
+ "version" => \$version,
+ "help" => \$help);
+
+# If date options are specified, check that they have the format
+# YYYY-MM-DD.
+
+$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
+ --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;
+
+ # 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 ciiteria specified on the
+# command line, i.e. it matches $regexp, and it doesn't match
+# $exclude.
+
+sub entry_match_p ($) {
+ my $entry = shift;
+
+ if ($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, $entry) = @_;
+
+ if ($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)/;
+ print "!changelog-date $1\n";
+ }
+ print $entry;
+ } else {
+ print $header, $entry;
+ }
+}
+
+# Scan LOG for matching entries, and print them to standard output.
+
+sub parse_changelog ($) {
+ my $log = shift;
+ my $entry;
+ my $match;
+
+ # Open the ChangeLog.
+ open (IN, "< $log") || die "Cannot open $log: $!";
+
+ while ($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 = $line;
+
+ # Add empty lines below the header.
+ while (($line = <IN>) && $line =~ /^\s*$/) {
+ $header = "$header$line";
+ }
+ }
+
+ if ($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 ($entry);
+
+ close IN;
+}
+
+
+# Main program. Process ChangeLogs.
+
+if (@ARGV > 0) {
+ # If files were specified on the command line, parse those files.
+ while ($log = shift @ARGV) {
+ parse_changelog ($log);
+ }
+} else {
+ # Parse default files ChangeLog and ChangeLog.9...ChangeLog.1 in
+ # that order.
+ parse_changelog ("ChangeLog");
+ for ($i = 9; $i >= 1; --$i) {
+ my $log = "ChangeLog.$i";
+ parse_changelog ($log) if -f $log;
+ }
+}
+
+
+# gre-changelog ends here.
HCoop / bpt / emacs.git / commitdiff