Feature: show full hostname

[berserck]

Added possibility to show domain if host name is shown.

I've added the option LP_DOMAIN to show the domain if the host name is shown.
I also edited the test.sh file to test for new feature.

I'm using the command hostname -f instead of the \H (for bash) and %M(for zsh)
because I noticed that the \H is bash is not the same in all systems (zsh is coherent):

In macos (bash 3.2.48(1)-release) and freeBSD(bash 4.2.45(0)-release) :

# hostname -f
host.domain
# export PS1=" \\\h=\h \\\H=\H #"
 \h=host \H=host.domain #

In linux: SLC6 (bash: 4.1.2(1)-release), debian(bash:4.2.37(1)-release ) and ubunto(bash: 4.2.25(1)-release) ):

# hostname -f
host.domain
# export PS1=" \\\h=\h \\\H=\H #"
 \h=host \H=host #

[dolmen]

Please never merge the branches from the main repo to your own feature branches. This pull request is a mess now.

[dolmen]

We got an other implementation of this feature in #277, and those patches are cleaner.

@berserck Could you check if #277 would fit your needs?

[thoraxe]

@dolmen My implementation won't work for @berserck because I am using Bash's \H which he claims does not work on 100% of platforms.

You have to make a decision about whether or not you want to 100% rely on the underlying shell's prompt options or if you want to go "outside" the box if the prompt's options fail.

In other words, in my opinion, if \H doesn't work on your platform, you need to file a bug against the prompt on your platform because it should work. That's why I implemented it this way.

Sorry I didn't write any tests. I am not so good with testing.

[berserck]

that is correct, feature #277 will not work for me.

I found out why the option \H does not work for me and it has to do with my setup, it is not a bash problem, but it seems to be one of those things that will not change soon (more information in http://serverfault.com/questions/296970/bash-prompt-on-ubuntu-fqdn-h-same-as-hostname-h)

the option hostname -f seems to be better in terms of results(you will get what you expect), the \H is the bash native.

you can go either way.
Sorry for the mess with the commits, but I'll not have time to re-d0/clean up in the near future.

[dolmen]

Thanks for the feedback. I'll try to do a mix of the two implementations.

[dolmen]

FQDN feature from #254 is in merged 695d629.
Thanks for being patient!

Note to self: the changes in the testsuite in this PR would be interesting to merge...