#! /usr/local/bin/perl

eval "exec /usr/local/bin/perl -S $0 $*"
    if $running_under_some_shell;

################################################################################
#
# File:         ListTheTree <source tree>
# RCS:          $XConsortium: ListTheTree /main/3 1995/10/30 13:43:24 rswiston $
# Author:       Jim Andreas Hewlett-Packard, OSSD-CV
# Created:      1/15/92
# Modified by:  Marc Ayotte Hewlett-Packard, OSSD-CV (perlizer)
# Language:     N/A
# Package:      N/A
# Status:       CDE distributed
#
# (c) Copyright 1993, Hewlett-Packard Company, all rights reserved.
#
# Description:  This file does 2 things:
#               1) List the source tree's structure.
#                  This structure is placed into the source tree's
#                  directory as :TreeListing.
#               2) Creates a listing of all of the files locked in the
#                  source tree and places it in :TreeListing.locks.
################################################################################

if ($ARGV[0]) {
	$TREE = $ARGV[0];
	#
	# if not / relative get pwd path
	#
	if ($TREE !~ m%^\/%) {
		print STDERR "	Must be a / related path e.g -> /foo.  Sorry!\n";
		exit 1;
	}
}
else {
	die "	USAGE ListTheTree <source directory>\n";
}

# put /usr/local/bin in the path for Rcslocks
$ENV{'PATH'} = "/x/cdesrc/admin/bin:/usr/local/bin:$ENV{'PATH'}";

if (! chdir("$TREE")) {
	die "	ERROR -> Couldn't change directory to $TREE.\n";
}

######################
# get the tree listing
######################
system ("find . -print > :TreeListing.new");
unlink(":TreeListing");
if (! rename(":TreeListing.new",":TreeListing")) {
	print "	WARNING -> couldn't mv  :TreeListing.new to :TreeListing.\n";
}


###################################
# find the locked files in the tree
###################################
unlink(":TreeListing.locks.new");
open(NLOCK,">>$TREE/:TreeListing.locks.new");
print NLOCK "List of locked files in $TREE\n\n";
@dirs=(`find . -type d -print`);

foreach $dir (@dirs) {
	undef(@rcsLocks);
	chop($dir);
	if (chdir("$dir")) {
		@rcsLocks = (`Rcslocks -v`);
		# only list directory if there are locks
		if (@rcsLocks) {
			print NLOCK "$dir\n";
			while (@rcsLocks) {
				$lock = shift(@rcsLocks);
				print NLOCK "   $lock";
			}
			print NLOCK "\n";
		}
	}
	else {
		print "	WARNING -> could not cd to ${TREE}/${dir}\n";
		print "	$!\n";
	}
    	chdir("$TREE");
}

unlink("$TREE/:TreeListing.locks");
rename("$TREE/:TreeListing.locks.new","$TREE/:TreeListing.locks");


#
# get changes from last listing
# check file $TREE/changestamp
#
$cstamp = "${TREE}/changestamp";
if ( -f "${TREE}/changestamp" ) {
	$laststamp = `cat $cstamp`;
	chop $laststamp;
}
else {
	$date = `date +%y%m%d`;
	chop $date;
	$laststamp = "${date}0001";
	$dip = `echo "$laststamp" >$cstamp`;
	$date = `date +%m%d0001`;
	chop $date;
	system "touch $date $cstamp";
}
$curstamp = `date +%y%m%d%H%M`;
chop $curstamp;

unlink("$TREE/:TreeListing.changes.new");
open(NCHANGE,">>$TREE/:TreeListing.changes.new");
print NCHANGE "List of changed files in $TREE\n\n";
@allfiles=(`find . -follow -name "*,v" -newer $cstamp -print`);
foreach $file (@allfiles) {
	chop $file;
	if (open($RCSFILE,"$file")) {
		NEXTLINE:
		while ($line = <$RCSFILE>) {
			chop $line;
			if ($line !~ m%^date%) {
				next NEXTLINE;
			}
			else {
				$lastdate = $line;
				$author = $line;
				$lastdate =~ s%^.* (\d+\.\d+\.\d+\.\d+\.\d+).*$%\1%;
				$lastdate =~ s%\.%%g;
				if ($lastdate > $laststamp) {
					$author =~ s%^.*author (.*); .*;$%\1%;
					print NCHANGE "$file <-> $author\n";
				}
			}
		}
		close($RCSFILE);
	}
}

$dip = `echo "$curstamp" >$cstamp`;

unlink("$TREE/:TreeListing.changes");
rename("$TREE/:TreeListing.changes.new","$TREE/:TreeListing.changes");