mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
127 lines
3.4 KiB
Perl
Executable File
127 lines
3.4 KiB
Perl
Executable File
#! /usr/bin/perl
|
|
|
|
# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
|
|
# 2008, 2009 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
require 5;
|
|
use Getopt::Long;
|
|
|
|
my $USAGE = <<ENDUSAGE;
|
|
Remove \@tindex lines from files that were already present in previous
|
|
versions.
|
|
|
|
Usage: $0 [--old=EXT] FILE...
|
|
$0 --help
|
|
$0 --version
|
|
|
|
--help display this help and exit
|
|
--version print version and exit
|
|
--old=DIR find old files in DIR
|
|
|
|
The script performs two passes. In the first pass, Texinfo files from
|
|
DIR are scanned for \@tindex lines, and identifiers in them are
|
|
recorded. In a second pass, Texinfo files in the current directory
|
|
are scanned, and \@tindex lines for identifiers that were recorded in
|
|
the first pass are removed. Old file contents are saved in files
|
|
with extension ".orig". A list of modified files and removed \@tindex
|
|
identifiers is printed to stdout at the end.
|
|
ENDUSAGE
|
|
|
|
sub fatal {
|
|
print STDERR "$0: ", @_, ".\n";
|
|
exit 1;
|
|
}
|
|
|
|
my $help = 0;
|
|
my $version = 0;
|
|
my $old;
|
|
|
|
my $rc = GetOptions ('help' => \$help, 'version' => \$version,
|
|
'old=s' => \$old);
|
|
if ($version) {
|
|
print "0.1\n";
|
|
exit 0;
|
|
} elsif (!$rc || !$old || @ARGV) {
|
|
print $USAGE;
|
|
exit 1;
|
|
} elsif ($help) {
|
|
print $USAGE;
|
|
exit 0;
|
|
}
|
|
|
|
# Fill the hash %tindex with associations VAR -> COUNT where
|
|
# the keys VAR are identifiers mentioned in @tindex lines in the older
|
|
# files to process and COUNT is the number of times they are seen in
|
|
# the files.
|
|
|
|
my %tindex;
|
|
my %removed;
|
|
my @old_files = glob "$old/*.texi";
|
|
my @new_files = glob "*.texi";
|
|
fatal ("No Texinfo files found in `$old'") unless @old_files;
|
|
fatal ("No Texinfo files found in current directory") unless @new_files;
|
|
|
|
print "Scanning old files for \@tindex lines\n";
|
|
foreach $file (@old_files) {
|
|
open (IN, "<$file") or fatal "Cannot open $file: $!";
|
|
while (<IN>) {
|
|
++$tindex{$1} if /^\s*\@tindex\s+(\S+)/;
|
|
}
|
|
close IN;
|
|
}
|
|
|
|
# Process current files and remove those @tindex lines which we
|
|
# know were already present in the files scanned above.
|
|
|
|
print "Removing old \@tindex lines\n";
|
|
foreach $file (@new_files) {
|
|
my $modified = 0;
|
|
my $contents = "";
|
|
|
|
open (IN, "< $file") or fatal "Cannot open $file.orig for reading: $!";
|
|
while (<IN>) {
|
|
if (/^\s*\@tindex\s+(\S+)/ && $tindex{$1}) {
|
|
++$removed{$1};
|
|
$modified = 1;
|
|
} else {
|
|
$contents = $contents . $_;
|
|
}
|
|
}
|
|
|
|
close IN;
|
|
|
|
if ($modified) {
|
|
print " $file\n";
|
|
system ("cp $file $file.orig") == 0 or fatal "Cannot backup $file: $!";
|
|
open (OUT, ">$file") or fatal "Cannot open $file for writing: $!";
|
|
print OUT $contents;
|
|
close OUT;
|
|
}
|
|
}
|
|
|
|
# Print a list of identifiers removed.
|
|
|
|
print "Removed \@tindex commands for:\n";
|
|
my $key;
|
|
foreach $key (keys %removed) {
|
|
print " $key\n";
|
|
}
|
|
|
|
# arch-tag: f8460df6-6bef-4c98-8555-e2c63a88b0fa
|