[X4U] Re: Using gnutar in Tiger.

[Robert Nicholson]

So what I don't understand is why

/usr/bin/gnutar -cvf /Volumes/External/BRUBackups/annie/ 
backup-20060304-3.tar --show-omitted-dirs -X /usr/local/bruconfig/ 
gnuxpat2 -N /var/backup/BACKUP-0 /

this has the correct semantics when gnuxpat2 contains nothing.

but lets say I put in .Spotlight-V100 as the very first line

Now when I have that as the first line and I execute the following.

  /usr/bin/gnutar -cvf /Volumes/External/BRUBackups/annie/ 
backup-20060304-3.tar --show-omitted-dirs -X /usr/local/bruconfig/ 
gnuxpat2 -N /var/backup/BACKUP-0 /

it will no longer be an "incremental backup" but it will be a full  
backup.

Doesn't make sense to me.

Note: the exclusion is obeyed. ie. not Spotlight-V100 folder but
it's adding stuff in the tar that has a mtime longer before the mtime  
of the BACKUP-0 file.

./
._.DS_Store
.DS_Store
._.hidden
._.hotfiles.btree
._.RegisterApplications.ted.tbu
._.TemporaryItems
.TemporaryItems/
.TemporaryItems/folders.0/
.TemporaryItems/folders.0/TemporaryItems/
._.Trashes
.Trashes/
.Trashes/._501
.Trashes/501/
.vol/
.vol/234881026/
.vol/234881036/
Applications/

Strangely enough when I break this down to simple trivial example  
everything works as expected.

Here's what I mean.

annie:/tmp robert$ cat bla
*/*.txt

so .txt files should be excluded

annie:/tmp robert$ ls -al /tmp/now
-rw-r--r--   1 robert  wheel  0 Mar  4 21:24 /tmp/now

annie:/tmp robert$ ls -al /tmp/test
total 0
drwxr-xr-x     8 robert  wheel    272 Mar  4 21:46 .
drwxrwxrwt   418 root    wheel  14212 Mar  4 23:05 ..
-rw-r--r--     1 robert  wheel      0 Mar  4 21:24 1
-rw-r--r--     1 robert  wheel      0 Mar  4 21:24 2
-rw-r--r--     1 robert  wheel      0 Mar  4 21:24 3
-rw-r--r--     1 robert  wheel      0 Mar  4 21:24 4
-rw-r--r--     1 robert  wheel      0 Mar  4 21:24 5
drwxr-xr-x     2 robert  wheel     68 Mar  4 21:46 6.txt

gnutar cvf test1.tar -N /tmp/now -X /tmp/bla test
test/
test/4
test/5

these are the two files that were created after the file /tmp/now was  
created and notice the 6.txt
was correctly excluded.

So it all works when you break it down into a simple example like this.

annie:/usr/local/bruconfig robert$ gnutar --version
tar (GNU tar) 1.14
Copyright (C) 2004 Free Software Foundation, Inc.
This program comes with NO WARRANTY, to the extent permitted by law.
You may redistribute it under the terms of the GNU General Public  
License;
see the file named COPYING for details.
Written by John Gilmore and Jay Fenlason.
Modified to support extended attributes.