389 lines
8.2 KiB
Perl
389 lines
8.2 KiB
Perl
#!/usr/bin/perl
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#
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# Support for importing a source collection into CVS.
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# Tries to prevent the user from the most common pitfalls (like creating
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# new top-level repositories or second-level areas accidentally), and
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# cares to do some of the `dirty' work like maintaining the modules
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# database accordingly.
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#
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# Written by Jörg Wunsch, 95/03/07, and placed in the public domain.
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#
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# $Id$
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require "complete.pl";
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require "getopts.pl";
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sub scan_opts
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{
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local($status);
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$status = &Getopts("nv");
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$dont_do_it = "-n" if $opt_n;
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if($opt_v) {
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print STDERR '$Source$ $Revision$' . "\n"; # 'emacs kludge
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exit 0;
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}
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die "usage: $0 [-v] [-n] [moduledir]\n" .
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" -n: don't do any commit, show only\n" .
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" -v: show program version\n"
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unless $status && $#ARGV <= 0;
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if($#ARGV == 0) {
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$moduledir = $ARGV[0];
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shift;
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}
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}
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sub lsdir
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{
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# find all subdirectories under @_
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# ignore all CVS entries, dot entries, and non-directories
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local($base) = @_;
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local(@ls, @rv, $fname);
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opendir(DIR, $base) || die "Cannot find dir $base.\n";
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@ls = readdir(DIR);
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closedir(DIR);
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@rv = ();
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foreach $fname (@ls) {
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next if $fname =~ /^CVS/ || $fname eq "Attic"
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|| $fname =~ /^\./ || ! -d "$base/$fname";
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@rv = (@rv, $fname);
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}
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return sort(@rv);
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}
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sub contains
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{
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# look if the first parameter is contained in the list following it
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local($item, @list) = @_;
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local($found, $i);
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$found = 0;
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foreach $i (@list) {
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return 1 if $i eq $item;
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}
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return 0;
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}
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sub term_init
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{
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# first, get some terminal attributes
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# try bold mode first
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$so = `tput md`; $se = `tput me`;
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# if no bold mode available, use standout mode
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if ($so eq "") {
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$so = `tput so`; $se = `tput se`;
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}
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# try if we can underscore
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$us = `tput us`; $ue = `tput ue`;
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# if we don't have it available, or same as bold/standout, disable it
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if ($us eq "" || $us eq $so) {
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$us = $ue = "";
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}
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# look how many columns we've got
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if($ENV{'COLUMNS'} ne "") {
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$columns = $ENV{'COLUMNS'};
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} elsif(-t STDIN) { # if we operate on a terminal...
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local($word, $tmp);
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open(STTY, "stty -a|");
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$_ = <STTY>; # try getting the tty win structure value
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close(STTY);
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chop;
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$columns = 0;
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foreach $word (split) {
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$columns = $tmp if $word eq "columns;"; # the number preceding
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$tmp = $word;
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}
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} else {
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$columns = 80;
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}
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# sanity
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$columns = 80 unless $columns >= 5;
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}
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sub list
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{
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# pretty-print a list
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# imports: global variable $columns
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local(@items) = @_;
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local($longest,$i,$item,$cols,$width);
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# find the longest item
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$longest = 0;
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foreach $item (@items) {
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$i = length($item);
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$longest = $i if $longest < $i;
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}
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$width = $longest + 1;
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$cols = int($columns / $width);
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$i = 0;
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foreach $item (@items) {
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print $item;
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if(++$i == $cols) {
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$i = 0; print "\n";
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} else {
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print ' ' x ($width - length($item));
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}
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}
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print "\n" unless $i == 0;
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}
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sub cvs_init
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{
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# get the CVS repository(s)
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die "You need to have the \$CVSROOT variable set.\n"
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unless $ENV{'CVSROOT'} ne "";
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# get the list of available repositories
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$cvsroot = $ENV{'CVSROOT'};
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@reps = &lsdir($cvsroot);
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}
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sub lsmodules
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{
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# list all known CVS modules
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local(@rv, $mname, $_);
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@rv = ();
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open(CVS, "cvs co -c|");
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while($_ = <CVS>) {
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chop;
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($mname) = split;
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next if $mname eq "";
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@rv = (@rv, $mname);
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}
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close(CVS);
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return @rv;
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}
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sub checktag
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{
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# check a given string for tag rules
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local($s, $name) = @_;
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local($regexp);
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if($name eq "vendor") { $regexp = '^[A-Z][A-Z0-9_]*$'; }
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elsif($name eq "release") { $regexp = '^[a-z][a-z0-9_]*$'; }
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else {
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print STDERR "Internal error: unknown tag name $name\n";
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exit(2);
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}
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if($s !~ /$regexp/) {
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print "\a${us}Valid $name tags must match the regexp " .
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"$regexp.${ue}\n";
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return 0;
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}
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if($s =~ /^RELENG/) {
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print "\a${us}Tags must not start with the word \"RELENG\".${ue}\n";
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return 0;
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}
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return 1;
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}
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&scan_opts;
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&term_init;
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&cvs_init;
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if(! $moduledir) {
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@dirs = &lsdir(".");
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print "${so}Import from which directory?${se}\n";
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@dirs = (@dirs, ".");
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&list(@dirs);
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$moduledir = &Complete("Which? [.]: ", @dirs);
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$moduledir = "." unless $moduledir ne "";
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}
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chdir $moduledir || die "Cannot chdir to $moduledir\n";
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print "${so}Available repositories:${se}\n";
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&list(@reps);
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# the following kludge prevents the Complete package from starting
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# over with the string just selected; Complete should better provide
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# some reinitialize method
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$Complete'return = ""; $Complete'r = 0;
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$selected =
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&Complete("Enter repository (<TAB>=complete, ^D=show): ",
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@reps);
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die "\aYou cannot create new repositories with this script.\n"
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unless &contains($selected, @reps);
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$rep = $selected;
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print "\n${so}Selected repository:${se} ${us}$rep${ue}\n";
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@areas = &lsdir("$cvsroot/$rep");
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print "${so}Existent areas in this repository:${se}\n";
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&list(@areas);
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$Complete'return = ""; $Complete'r = 0;
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$selected =
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&Complete("Enter area name (<TAB>=complete, ^D=show): ",
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@areas);
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print "\a${us}Warning: this will create a new area.${ue}\n"
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unless &contains($selected, @areas);
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$area = "$rep/$selected";
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print "\n${so}[Working on:${se} ${us}$area${ue}${so}]${se}\n";
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for(;;) {
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$| = 1;
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print "${so}Enter the module path:${se} $area/";
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$| = 0;
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$modpath = <>;
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chop $modpath;
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if ($modpath eq "") {
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print "\a${us}You cannot use an empty module path.${ue}\n";
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next;
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}
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last if ! -d "$cvsroot/$area/$modpath";
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print "\a${us}This module path does already exist; " .
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"choose another one.${ue}\n";
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}
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@newdirs = ();
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$dir1 = "$cvsroot/$area";
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$dir2 = "$area";
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@newdirs = (@newdirs, "$dir2") if ! -d $dir1;
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foreach $ele (split(/\//, $modpath)) {
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$dir1 = "$dir1/$ele";
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$dir2 = "$dir2/$ele";
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@newdirs = (@newdirs, "$dir2") if ! -d $dir1;
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}
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print "${so}You're going to create the following new directories:${se}\n";
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&list(@newdirs);
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@cvsmods = &lsmodules();
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for(;;) {
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$| = 1;
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print "${so}Gimme the module name:${se} ";
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$| = 0;
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$modname = <>;
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chop $modname;
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if ($modname eq "") {
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print "\a${us}You cannot use an empty module name.${ue}\n";
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next;
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}
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last if !&contains($modname, @cvsmods);
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print "\a${us}This module name does already exist; " .
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"choose another one.${ue}\n";
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}
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for(;;) {
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$| = 1;
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print "${so}Enter a \`vendor\' tag (e. g. the authors ID):${se} ";
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$| = 0;
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$vtag = <>;
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chop $vtag;
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last if &checktag($vtag, "vendor");
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}
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for(;;) {
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$| = 1;
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print "${so}Enter a \`release\' tag (e. g. the version #):${se} ";
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$| = 0;
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$rtag = <>;
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chop $rtag;
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last if &checktag($rtag, "release");
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}
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$| = 1;
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print "${so}This is your last chance to interrupt, " .
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"hit <return> to go on:${se} ";
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$| = 0;
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<>;
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$mod = "";
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foreach $tmp (@cvsmods) {
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if($tmp gt $modname) {
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$mod = $tmp;
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last;
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}
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}
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if($mod eq "") {
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# we are going to append our module
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$cmd = "\$\na\n";
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} else {
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# we can insert it
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$cmd = "/^${mod}[ \t]/\ni\n";
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}
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print "${so}Checking out the modules database...${se}\n";
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system("cvs co modules") && die "${us}failed.\n${ue}";
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print "${so}Inserting new module...${se}\n";
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open(ED, "|ed modules/modules") || die "${us}Cannot start ed${ue}\n";
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print(ED "${cmd}${modname}" . ' ' x (16 - length($modname)) .
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"$area/${modpath}\n.\nw\nq\n");
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close(ED);
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print "${so}Commiting new modules database...${se}\n";
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system("cvs $dont_do_it commit -m \" " .
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"${modname} --> $area/${modpath}\" modules")
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&& die "Commit failed\n";
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system("cvs $dont_do_it release -dQ modules");
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print "${so}Importing source. Enter a commit message in the editor.${se}\n";
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system("cvs $dont_do_it import $area/$modpath $vtag $rtag");
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print "${so}You are done now. Go to a different directory, perform a${se}\n".
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"${us}cvs co ${modname}${ue} ${so}command, and see if your new module" .
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" builds ok.${se}\n";
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if($dont_do_it) {
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print <<END
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${so}Since you did not allow to commit anything, you'll have${se}
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${so}to remove the edited modules' database yourself.${se}
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${so}To do this, perform a${se}
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${us}cd ${moduledir}; cvs release -dQ modules${ue}
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${so}command.${se}
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END
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;
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}
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