[DO NOT MERGE} initial zsh support

[detiber]

Changes introduced:

• add zsh support to Terminal.vala
• start of zsh_startup.in script
  • basically copied from bash_startup.in
    • bashisms removed
    • use function autoloading instead of bash specific export -f
• Termlet support
  • separated out bash and zsh termlets
  • ls, ps, and wget termlets appear to be working correctly now for both bash and zsh

Outstanding issues:

• history completion menus are not working for zsh
• segfault on hitting enter on an empty line :(

[detiber]

ls termlet is working as expected, ps termlet is now working as well.

wget termlet updates the status bar when download is initiated and when progress updates, but not when download is cancelled/finished.

history completion is not working at this time as well.

[detiber]

another major oddity right now is that the prompt is inheriting from the shell finalterm is launched from currently and not updating properly.

[detiber]

Improved shell handling a bit, now attempt to consume $SHELL from environment and if supported, then use it otherwise fall back to the default value in Settings.get_default().shell_path

[p-e-w]

If Settings.get_default().shell_path returns an invalid shell, we will proceed with that invalid shell from this point anyway. Instead, this should somehow "hardcode" bash so we have a true fallback.

[detiber]

true, I'll add logic to force bash if Settings.get_default().shell_path is not a valid shell. Thinking about it, I should also test to make sure that the shell referenced by $SHELL or shell_path actually exists as well.

[detiber]

I'm thinking there has got to be a better way to run configure_file on multiple files with cmake, but at least for the time being I'm defaulting to brute forcing it for the Termlet processing. I realized that different platforms might have different paths for the shells, so we should at least try to detect the shell path and set the #!'s appropriately.

[detiber]

I was able to fix up the issue with the wget termlet, but it introduced a crash when hitting at the prompt:
** (finalterm:20996): ERROR **: Highlight regex compilation error: Error while optimizing regular expression ➤
▶▶▶ 01:59.36 Wed Sep 17 2014 \xe2: internal error: opcode not recognized
zsh: trace trap (core dumped) finalterm

haven't had a chance to see if it is related to my zsh config or if it is a general issue yet.

[detiber]

actually, looking at the full output, it looks like my prompt is being interpreted by finalterm, will need to find a way to filter that out:

jdetiber@localhost:~➤ finalterm
** Message: TerminalOutput.vala:386: Command mode entered
** Message: Command updated: ''
** Message: Command updated: '\xa4 
'
** Message: Command updated: '\xa4 
\xe2'
** Message: Command updated: '\xa4 
\xe2'
** Message: Command updated: '\xa4 
\xe2\x96'
** Message: Command updated: '\xa4 
\xe2\x96'
** Message: Command updated: '\xa4 
▶'

...snip...


** Message: Command updated: '\xa4 
▶▶▶ 02:04.56 Wed Sep 17 2014 ◀◀◀                                                
jdetiber@localhost:~'
** Message: Command updated: '\xa4 
▶▶▶ 02:04.56 Wed Sep 17 2014 ◀◀◀                                                
jdetiber@localhost:~\xe2'

** (finalterm:22741): ERROR **: Highlight regex compilation error: Error while optimizing regular expression \xa4 
▶▶▶ 02:04\.56 Wed Sep 17 2014 ◀◀◀                                                
jdetiber@localhost:~\xe2: internal error: opcode not recognized
zsh: trace trap (core dumped)  finalterm
▶▶▶ 02:04.57 Wed Sep 17 2014 ◆ Exit Code: 133 ◀◀◀                                                                    
jdetiber@localhost:~➤ 

[p-e-w]

What exactly is the content of your prompt? Is it

▶▶▶ 02:04.56 Wed Sep 17 2014 ◀◀◀                                                
jdetiber@localhost:~➤

?

[detiber]

It is indeed. But this type of prompt manipulation is common with zsh. I suspect it may just be a matter of escaping the prompt text somehow, but I haven't had a chance to dig into it yet.

[harj0]

Sorry fur such a newb question, but how can I pull/implement these changes?

[Eugene-msc]

Like this i think
git branch zsh
git checkout zsh
git pull https://github.com/detiber/finalterm zsh2