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Diffstat (limited to 'build-aux/cvsu')
-rwxr-xr-x | build-aux/cvsu | 514 |
1 files changed, 514 insertions, 0 deletions
diff --git a/build-aux/cvsu b/build-aux/cvsu new file mode 100755 index 000000000..03e3d0686 --- /dev/null +++ b/build-aux/cvsu @@ -0,0 +1,514 @@ +#! /usr/bin/perl -w + +# cvsu - do a quick check to see what files are out of date. +# +# Copyright (C) 2000-2005 Pavel Roskin <proski@gnu.org> +# Initially written by Tom Tromey <tromey@cygnus.com> +# Completely rewritten by Pavel Roskin <proski@gnu.org> +# +# This program 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. +# +# 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; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +# 02111-1307, USA. + + +require 5.004; +use Getopt::Long; +use File::Basename; +use Time::Local; +use strict; + +use vars qw($list_types %messages %options @batch_list $batch_cmd + $no_recurse $explain_type $find_mode $short_print + $no_cvsignore $nolinks $file $single_filename $curr_dir + @common_ignores $ignore_rx %entries %subdirs %removed); + +use constant SUBDIR_FOUND => 1; +use constant SUBDIR_CVS => 2; + +# This list comes from the CVS manual. +use constant STANDARD_IGNORES => + ('RCS', 'SCCS', 'CVS', 'CVS.adm', 'RCSLOG', 'cvslog.*', 'tags', + 'TAGS', '.make.state', '.nse_depinfo', '*~', '#*', '.#*', ',*', + "_\$*", "*\$", '*.old', '*.bak', '*.BAK', '*.orig', '*.rej', + '.del-*', '*.a', '*.olb', '*.o', '*.obj', '*.so', '*.exe', + '*.Z', '*.elc', '*.ln', 'core'); + +# 3-letter month names in POSIX locale, for fast date decoding +my %months = ( + "Jan" => 0, + "Feb" => 1, + "Mar" => 2, + "Apr" => 3, + "May" => 4, + "Jun" => 5, + "Jul" => 6, + "Aug" => 7, + "Sep" => 8, + "Oct" => 9, + "Nov" => 10, + "Dec" => 11 +); + +# print usage information and exit +sub usage () +{ + print "Usage:\n" . + " cvsu [OPTIONS] [FILE] ...\n" . + "Options:\n" . + " --local Disable recursion\n" . + " --explain Verbosely print status of files\n" . + " --find Emulate find - filenames only\n" . + " --short Don't print paths\n" . + " --ignore Don't read .cvsignore\n" . + " --messages List known file types and long messages\n" . + " --nolinks Disable recognizing hard and soft links\n" . + " --types=[^]LIST Print only file types [not] from LIST\n" . + " --batch=COMMAND Execute this command on files\n" . + " --help Print this usage information\n" . + " --version Print version number\n" . + "Abbreviations and short options are supported\n"; + exit 0; +} + +# print version information and exit +sub version () +{ + print "cvsu - CVS offline examiner, version 0.2.3\n"; + exit 0; +} + +# If types begin with '^', make inversion +sub adjust_types () +{ + if ($list_types =~ m{^\^(.*)$}) { + $list_types = ""; + foreach (keys %messages) { + $list_types .= $_ + if (index ($1, $_) < 0); + } + } +} + +# list known messages and exit +sub list_messages () +{ + my $default_mark; + print "Recognizable file types are:\n"; + foreach (sort keys %messages) { + if (index($list_types, $_) >= 0) { + $default_mark = "*"; + } else { + $default_mark = " "; + } + print " $default_mark $_ $messages{$_}\n"; + } + print "* indicates file types listed by default\n"; + exit 0; +} + +# Initialize @common_ignores +# Also read $HOME/.cvsignore and append it to @common_ignores +sub init_ignores () +{ + my $HOME = $ENV{"HOME"}; + + push @common_ignores, STANDARD_IGNORES; + + unless (defined($HOME)) { + return; + } + + my $home_cvsignore = "${HOME}/.cvsignore"; + + if (-f "$home_cvsignore") { + + unless (open (CVSIGNORE, "< $home_cvsignore")) { + error ("couldn't open $home_cvsignore: $!"); + } + + while (<CVSIGNORE>) { + push (@common_ignores, split); + } + + close (CVSIGNORE); + } + + my $CVSIGNOREENV = $ENV{"CVSIGNORE"}; + + unless (defined($CVSIGNOREENV)) { + return; + } + + my @ignores_var = split (/ /, $CVSIGNOREENV); + push (@common_ignores, @ignores_var); + +} + +# Print message and exit (like "die", but without raising an exception). +# Newline is added at the end. +sub error ($) +{ + print STDERR "cvsu: ERROR: " . shift(@_) . "\n"; + exit 1; +} + +# execute commands from @exec_list with $exec_cmd +sub do_batch () +{ + my @cmd_list = split (' ', $batch_cmd); + system (@cmd_list, @batch_list); +} + +# print files status +# Parameter 1: status in one-letter representation +sub file_status ($) +{ + my $type = shift (@_); + my $item; + my $pathfile; + + return + if $ignore_rx ne '' && $type =~ /[?SLD]/ && $file =~ /$ignore_rx/; + + return + if (index($list_types, $type) < 0); + + $pathfile = $curr_dir . $file; + + if (defined($batch_cmd)) { + push (@batch_list, $pathfile); + # 1000 items in the command line might be too much for HP-UX + if ($#batch_list > 1000) { + do_batch(); + undef @batch_list; + } + } + + if ($short_print) { + $item = $file; + } else { + $item = $pathfile; + } + + if ($find_mode) { + print "$item\n"; + } else { + $type = $messages{$type} + if ($explain_type); + print "$type $item\n"; + } +} + +# load entries from CVS/Entries and CVS/Entries.Log +# Parameter 1: file name for CVS/Entries +# Return: list of entries in the format used in CVS/Entries +sub load_entries ($); +sub load_entries ($) +{ + my $entries_file = shift (@_); + my $entries_log_file = "$entries_file.Log"; + my %ent = (); + + unless (open (ENTRIES, "< $entries_file")) { + error ("couldn't open $entries_file: $!"); + } + while (<ENTRIES>) { + chomp; + $ent{$_} = 1; + } + close (ENTRIES); + + if (open (ENTRIES, "< $entries_log_file")) { + while (<ENTRIES>) { + chomp; + if ( m{^A (.+)} ) { + $ent{$1} = 1; + } elsif ( m{^R (.+)} ) { + delete $ent{$1}; + } else { + # Note: "cvs commit" helps even when you are offline + error ("$entries_log_file:$.: unrecognizable line, " . + "try \"cvs commit\""); + } + } + close (ENTRIES); + } + + return keys %ent; +} + +# process one directory +# Parameter 1: directory name +sub process_arg ($); +sub process_arg ($) +{ + my $arg = shift (@_); + my %found_files = (); + + # $file, $curr_dir, and $ignore_rx must be seen in file_status + local $file = ""; + local $ignore_rx = ""; + local $single_filename = 0; + + if ( $arg eq "" or -d $arg ) { + $curr_dir = $arg; + my $real_curr_dir = $curr_dir eq "" ? "." : $curr_dir; + + error ("$real_curr_dir is not a directory") + unless ( -d $real_curr_dir ); + + # Scan present files. + file_status ("."); + opendir (DIR, $real_curr_dir) || + error ("couldn't open directory $real_curr_dir: $!"); + foreach (readdir (DIR)) { + $found_files {$_} = 1; + } + closedir (DIR); + } else { + $single_filename = basename $arg; + $curr_dir = dirname $arg; + $found_files{$single_filename} = 1 if lstat $arg; + } + + $curr_dir .= "/" + unless ( $curr_dir eq "" || $curr_dir =~ m{/$} ); + + # Scan CVS/Entries. + my %entries = (); + my %subdirs = (); + my %removed = (); + + foreach ( load_entries ("${curr_dir}CVS/Entries") ) { + if ( m{^D/([^/]+)/} ) { + $subdirs{$1} = SUBDIR_FOUND if !$single_filename; + } elsif ( m{^/([^/]+)/([^/])[^/]*/([^/]*)/} ) { + if ( !$single_filename or $single_filename eq $1 ) { + $entries{$1} = $3; + $removed{$1} = 1 + if $2 eq '-'; + } + } elsif ( m{^D$} ) { + next; + } else { + error ("${curr_dir}CVS/Entries: unrecognizable line"); + } + } + + if ( $single_filename && !$entries{$single_filename} && + !$found_files{$single_filename} ) { + error ("nothing known about $arg"); + } + + # Scan .cvsignore if any + unless ($no_cvsignore) { + my (@ignore_list) = (); + + if (-f "${curr_dir}.cvsignore") { + open (CVSIGNORE, "< ${curr_dir}.cvsignore") + || error ("couldn't open ${curr_dir}.cvsignore: $!"); + while (<CVSIGNORE>) { + push (@ignore_list, split); + } + close (CVSIGNORE); + } + + my ($iter); + foreach $iter (@ignore_list, @common_ignores) { + if ($iter eq '!') { + $ignore_rx = '' + } else { + if ($ignore_rx eq '') { + $ignore_rx = '^('; + } else { + $ignore_rx .= '|'; + } + $ignore_rx .= glob_to_rx ($iter); + } + } + $ignore_rx .= ')$' + if $ignore_rx ne ''; + } + + # File is missing + foreach $file (sort keys %entries) { + unless ($found_files{$file}) { + if ($removed{$file}) { + file_status("R"); + } else { + file_status("U"); + } + } + } + + foreach $file (sort keys %found_files) { + next if ($file eq '.' || $file eq '..'); + lstat ($curr_dir . $file) || + error ("lstat() failed on $curr_dir . $file"); + if (! $nolinks && -l _) { + file_status ("L"); + } elsif (-d _) { + if ($file eq 'CVS') { + file_status ("C"); + } elsif ($subdirs{$file}) { + $subdirs{$file} = SUBDIR_CVS; + } else { + file_status ("D"); # Unknown directory + } + } elsif (! (-f _) && ! (-l _)) { + file_status ("S"); # This must be something very special + } elsif (! $nolinks && (stat _) [3] > 1 ) { + file_status ("H"); # Hard link + } elsif (! $entries{$file}) { + file_status ("?"); + } elsif ($entries{$file} =~ /^Initial |^dummy /) { + file_status ("A"); + } elsif ($entries{$file} =~ /^Result of merge/) { + file_status ("G"); + } elsif ($entries{$file} !~ + /^(...) (...) (..) (..):(..):(..) (....)$/) { + error ("Invalid timestamp for $curr_dir$file: $entries{$file}"); + } else { + my $cvtime = timegm($6, $5, $4, $3, $months{$2}, $7 - 1900); + my $mtime = (stat _) [9]; + if ($cvtime == $mtime) { + file_status ("F"); + } elsif ($cvtime < $mtime) { + file_status ("M"); + } else { + file_status ("O"); + } + } + } + + # Now do directories. + unless ($no_recurse) { + my $save_curr_dir = $curr_dir; + foreach $file (sort keys %subdirs) { + if ($subdirs{$file} == SUBDIR_FOUND) { + $curr_dir = $save_curr_dir; + file_status ("X"); + } elsif ($subdirs{$file} == SUBDIR_CVS) { + process_arg ($save_curr_dir . $file) + } + } + } +} + +# Turn a glob into a regexp without recognizing square brackets. +sub glob_to_rx_simple ($) +{ + my ($expr) = @_; + # Quote all non-word characters, convert ? to . and * to .* + $expr =~ s/(\W)/\\$1/g; + $expr =~ s/\\\*/.*/g; + $expr =~ s/\\\?/./g; + return $expr; +} + +# Turn a glob into a regexp +sub glob_to_rx ($) +{ + my $result = ''; + my ($expr) = @_; + # Find parts in square brackets and copy them literally + # Text outside brackets is processed by glob_to_rx_simple() + while ($expr ne '') { + if ($expr =~ /^(.*?)(\[.*?\])(.*)/) { + $expr = $3; + $result .= glob_to_rx_simple ($1) . $2; + } else { + $result .= glob_to_rx_simple ($expr); + last; + } + } + return $result; +} + +sub Main () +{ + # types of files to be listed + $list_types = "^.FCL"; + + # long status messages + %messages = ( + "?" => "Unlisted file", + "." => "Known directory", + "F" => "Up-to-date file", + "C" => "CVS admin directory", + "M" => "Modified file", + "S" => "Special file", + "D" => "Unlisted directory", + "L" => "Symbolic link", + "H" => "Hard link", + "U" => "Lost file", + "X" => "Lost directory", + "A" => "Newly added", + "O" => "Older copy", + "G" => "Result of merge", + "R" => "Removed file" + ); + + undef @batch_list; # List of files for batch processing + undef $batch_cmd; # Command to be executed on files + $no_recurse = 0; # If this is set, do only local files + $explain_type = 0; # Verbosely print status of files + $find_mode = 0; # Don't print status at all + $short_print = 0; # Print only filenames without path + $no_cvsignore = 0; # Ignore .cvsignore + $nolinks = 0; # Do not test for soft- or hard-links + my $want_msg = 0; # List possible filetypes and exit + my $want_help = 0; # Print help and exit + my $want_ver = 0; # Print version and exit + + my %options = ( + "types=s" => \$list_types, + "batch=s" => \$batch_cmd, + "local" => \$no_recurse, + "explain" => \$explain_type, + "find" => \$find_mode, + "short" => \$short_print, + "ignore" => \$no_cvsignore, + "messages" => \$want_msg, + "nolinks" => \$nolinks, + "help" => \$want_help, + "version" => \$want_ver + ); + + GetOptions(%options); + + adjust_types(); + + list_messages() if $want_msg; + usage() if $want_help; + version() if $want_ver; + + unless ($no_cvsignore) { + init_ignores(); + } + + if ($#ARGV < 0) { + @ARGV = (""); + } + + foreach (@ARGV) { + process_arg ($_); + } + + if ($#batch_list >= 0) { + do_batch(); + } +} + +Main(); |