Incorrect Extension Handling

[dtomvan]

Bug Report:

Test case 1:

ouch c /home/tomvd/.bashrc /home/tomvd/.bashrc.tar.bz2 && file /home/tomvd/.bashrc.tar.bz2

[INFO] Successfully compressed '/home/tomvd/.bashrc.tar.bz2'.
/home/tomvd/.bashrc.tar.bz2: gzip compressed data, original size modulo 2^32 2048

• Observed behaviour: ouch compresses to a gzip
• Expected behaviour: ouch compresses the file to a bzipped tarball e.g:

~> tar cf .bashrc.tar .bashrc
~> bzip2 .bashrc.tar
~> file .bashrc.tar.bz2
.bashrc.tar.bz2: bzip2 compressed data, block size = 900k

Test case 2:

ouch c /home/tomvd/.bashrc /home/tomvd/.bashrc.gz

thread 'main' panicked at 'internal error: entered unreachable code', /home/tomvd/.cargo/registry/src/github.com-1ecc6299db9ec823/ouch-0.2.0/src/commands.rs:162:18
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

• Observed behaviour: ouch panics and creates an empty .bashrc.gz
• Expected behaviour: ouch compresses to a bzip

[dtomvan]

Oops, the second test case is #31 and will be fixed with #163.

[figsoda]

actually second test case was already fixed in #89
#163 is just improving tests so we can find problems like this

[figsoda]

first case seems to be fixed on master too

[dtomvan]

Oh I'm sorry, I just reported this because the version I'm on (I think from crates.io) had these bugs.

[figsoda]

Did you update to 0.3.1? It was delayed a little bit, but both of these should be fixed in 0.3.1

[marcospb19]

I think I should create an issue template to remember people to send the ouch version they are using (nobody remembers this xD).

[marcospb19]

Done, now ouch has two new templates, they don't do much, but at least has a reminder for this.