#!/vobs/cello/cade_struct/bin/perl -w

use ClearCase::Argv;
ClearCase::Argv->ipc(1);
use File::Spec::Functions;
use vars qw($acc $cmp);

# There is some concern about the time when config specs are evaluated, either
# as the view is set, or explicitly with 'setcs -current', and about the 
# impact of this evaluation, in relation to brtype names or include clauses.
# This script attempts to show when have the views in current use (during the
# past week) evaluated their config spec last.
# It incidently reports of all questionable views (storage not reachable, or
# missing expected files).

my $ct = ClearCase::Argv->new({autochomp=>1});
my $now = time();
my $weekago = $now - 7*24*3600;
my @view = grep {
  chomp;
  if (/^\*?\s+(\w+)\s+(.*)$/) {
    my ($t, $s) = ($1, $2);
    if (!($t and $s) or $t !~ /^\w+$/ or ! -r $s) {
      print "Corrupted/unreachable: $_\n";
      $_ = 0;
    } else {
      $_ = [ ($t, $s) ];
    }
  }
} $ct->argv('lsview', 'em*')->qx;
my %v;
foreach (@view) {
  my $tag = $_->[0];
  my $stg = $_->[1];
  if (!($acc = (stat(catdir($stg, '.access_info')))[10])) {
    print "Pb with last access time on $tag\n"; next; }
  next if $acc < $weekago;
  if (!($cmp = (stat(catdir($stg, '.compiled_spec')))[10])) {
    print "Pb with compilation time on $tag\n"; next; }
  $v{$tag} = $cmp;
}
print "Views accessed last week, sorted by compile time:\n";
foreach (sort { $v{$b} <=> $v{$a} } keys %v) {
  printf "%40s: %s\n", $_, scalar localtime($v{$_});
}