Re: [E-devel] wrong "run error" message

[Carsten H. (T. R. <ra...@ra...>]

On Tue, 10 Jan 2006 09:02:08 +0100 DoubleHP <dh...@do...> babbled:

> I use Engage to start gaim on Gentoo. It came today that my gaim 2 beta was
> broken for some Gentoo reasons.
> 
> E (build around 21st dec 05) presents me a dialog where it says:
> 
> Enlightenment was unable run the program:
> /usr/bin/gaim
> The command was not found.
> 
> - my build is old, but I dont think any one could possibly have my bug (see
> below)
> - I d rather say "Enlightenment was unable TO run the program" but I am not
> native English.
> - the actual error was not that the command was not found, and thus the
> meaning itself is also wrong:
> 
> $ which gaim
> /usr/bin/gaim
> 
> $ file /usr/bin/gaim
> /usr/bin/gaim: ELF 32-bit LSB executable [...]
> 
> $ /usr/bin/gaim
> /usr/bin/gaim: error while loading shared libraries: libdbus-glib-1.so.1:
> cannot open shared object file: No such file or directory
> 
> here we are: command IS found, but program is not linkable.
> 
> Not urgent, but should be patched before stable E released.
> 
> Challenge: how to make the difference between command not found and linker
> error ? no clue :)

aah. this is because /bin/sh returns 127 If the command is not found. it looks
like ld.so also exist with 127 if shared lib linking doesn't work - so we have
no way to really knwo exactly what the error was - other than there was an
error runinbg the application. the message was based on the sh return of the
command not being found. i don't think we are likely to catch and log/parse the
stdout/stderror of all programs launched to try figure out the errors (not to
mention parsing them is nigh impossible as the errors will get translated based
on locale - so we need different parsers based on each translation locale for
the system... not going to happen. even if we just capture and log (up to the
first N lines of output - whihc we can actually do how with fork & pipe (we
need to be able top handle stderror though... that could be a useful addition)
we could just display whatever the process spweds out in a dialog - but even
then it may not make a lot of sense...).

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    ra...@ra...
裸好多
Tokyo, Japan (東京 日本)