Wrong tar extraction

[mc-butler]

Important

This issue was migrated from Trac:

Origin	https://midnight-commander.org/ticket/4513
Reporter	fraganestis (anestis@….eu)

You can add (using tar -r) in a tar file multiple files with the same name (or multiple versions of the same file).
When such tar file is opened in mc, every 'instance' of these entries (or occurrences as the tar help refers to them) is listed.
But when you copy or view such an occurrence, no matter which one you select, always the same file is displayed/copied.

Steps to reproduce:
1) create a file named sample1.txt with the following contents

Text line v1

2) execute

tar -rf test.tar sample1.txt

3) modify the sample1.txt to have the following contents

Text line v2

4) execute

tar -rf test.tar sample1.txt

5) open the test.tar using mc

6) view(F3) or copy (F5) each file.
The files will be identical

Expected behavior:
The newer file should reflect the modified state of the sample1.txt while the old should reflect the initial.

To correctly view the 'instances' of the file using tar, you can run

tar -xf test.tar sample1.txt -O --occurrence=1

for the initial version

tar -xf test.tar sample1.txt -O --occurrence=2

for the new version

[mc-butler]

Changed by andrew_b (@aborodin) on Nov 21, 2023 at 19:37 UTC (comment 1)

• Component changed from mc-core to mc-vfs