diskfree for windows >= 8

git-svn-id: svn://tug.org/texlive/trunk@62794 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 37 insertions, 1 deletions

diff --git a/Master/tlpkg/TeXLive/TLUtils.pm b/Master/tlpkg/TeXLive/TLUtils.pm
index 252f2295b08..e3f51b5de97 100644
--- a/Master/tlpkg/TeXLive/TLUtils.pm
+++ b/Master/tlpkg/TeXLive/TLUtils.pm
@@ -815,6 +815,42 @@ computing the disk space.
 
 sub diskfree {
   my $td = shift;
+  my ($output, $retval);
+  if (win32()) {
+    # the powershell one-liner only works from win8 on.
+    my @winver = Win32::GetOSVersion();
+    if ($winver[1]<=6 && $winver[2]<=1) {
+      return -1;
+    }
+    my $avl;
+    if ($td =~ /^[a-zA-Z]:/) {
+      my $drv = substr($td,0,1);
+      # ea ignore: error action ignore: no output at all
+      my $cmd = "powershell -nologo -noninteractive -noprofile -command " .
+       "\"get-psdrive -name $drv -ea ignore |select-object free |format-wide\"";
+      ($output, $retval) = run_cmd($cmd);
+      # ignore exit code, just parse the output
+      my @lines = split(/\r*\n/, $output);
+      foreach (@lines) {
+        chomp $_;
+        if ($_ !~ /^\s*$/) {
+          $_ =~ s/^\s*//;
+          $_ =~ s/\s*$//;
+          $avl = $_;
+          last;
+        }
+      }
+      if ($avl !~ /^[0-9]+$/) {
+        return (-1);
+      } else {
+        return (int($avl/(1024*1024)));
+      }
+    } else {
+      # maybe UNC drive; do not try to handle this
+      return -1;
+    }
+  }
+  # now windows case has been taken care of
   return (-1) if (! $::progs{"df"});
   # drop final /
   $td =~ s!/$!!;
@@ -832,7 +868,7 @@ sub diskfree {
   $td .= "/" if ($td !~ m!/$!);
   return (-1) if (! -e $td);
   debug("Checking for free diskspace in $td\n");
-  my ($output, $retval) = run_cmd("df -P \"$td\"", POSIXLY_CORRECT => 1);
+  ($output, $retval) = run_cmd("df -P \"$td\"", POSIXLY_CORRECT => 1);
   if ($retval == 0) {
     # Output format should be this:
     # Filesystem      512-blocks       Used  Available Capacity Mounted on