On Wednesday, 08.03.2006 at 10:27 -0500, Ian Turner wrote:

> On Wednesday 08 March 2006 06:34, Dave Ewart wrote:
> > In summary: when a directory is *renamed* the files underneath it are
> > not considered to have changed
> 
> This does not appear to happen with CVS tar in listed-incremental mode. 
> Please 
> try upgrading your tar and check if you still see this behaviour.
> 
> For reference, this is the test I performed:
> 
> $ # Build CVS tar, chdir to src/.
> $ mkdir -p test/foo
> $ touch test/foo/bar
> $ ./tar -cvf test1.tar --listed-incremental test1.incr test
> ./tar: test/foo: Directory is new
> test/
> test/foo/
> test/foo/bar
> $ mv test/foo test/baz
> $ ./tar -cvf test2.tar --listed-incremental test1.incr test
> ./tar: test/baz: Directory is new
> test/
> test/baz/
> test/baz/bar

OK, you've hit the nail on the head:

Using the existing system tar:

    $ tar --version
    tar (GNU tar) 1.14

    $ find
    .
    ./blah
    ./blah/a
    ./blah/a/foo
    ./blah/a/bar

    $ tar -cvf test1.tar --listed-incremental test1.incr blah
    tar: blah/a: Directory is new
    blah/
    blah/a/
    blah/a/bar
    blah/a/foo

    $ mv blah/a blah/b
    $ tar -cvf test1.tar --listed-incremental test1.incr blah
    tar: blah/b: Directory is new
    blah/
    blah/b/

And using a rebuilt version from a more recent source:

    $ ~/src/tar-1.15.1/src/tar --version
    tar (GNU tar) 1.15.1

    $ ~/src/tar-1.15.1/src/tar -cvf test1.tar --listed-incremental test1.incr 
blah
    /home/davee/src/tar-1.15.1/src/tar: blah/a: Directory is new
    blah/
    blah/a/
    blah/a/bar
    blah/a/foo

    $ mv blah/a blah/b
    $ ~/src/tar-1.15.1/src/tar -cvf test1.tar --listed-incremental test1.incr 
blah

    /home/davee/src/tar-1.15.1/src/tar: blah/b: Directory is new
    blah/
    blah/b/
    blah/b/bar
    blah/b/foo

A new tar is indeed the answer it seems.

Many thanks, people.

Dave.
-- 
Dave Ewart
davee AT ceu.ox.ac DOT uk
Computing Manager, Cancer Epidemiology Unit
Cancer Research UK / Oxford University
PGP: CC70 1883 BD92 E665 B840 118B 6E94 2CFD 694D E370
Get key from http://www.ceu.ox.ac.uk/~davee/davee-ceu-ox-ac-uk.asc
N 51.7518, W 1.2016

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