Re: [Doxygen-users] generic variable for output directory

[Peter S. <pe...@gm...>]

Hi,
if it is really needed to compose the path within the command line, you could e.g. write in Doxyfile:
    OUTPUT_DIRECTORY="$(MY_OUT_DIR)"
and call doxygen this way:
    cat Doxyfile | MY_OUT_DIR="$ENV1/$ENV2" doxygen -
which could avoid a lot of shell related trouble.
(But do not forget the double quotes to avoid problems with some characters in $ENV1 and $ENV2, e.g. white space characters.)

Good luck,
    Peter

-------- Original-Nachricht --------
> Datum: Wed, 02 Jul 2008 09:19:41 +0200
> Von: Martin Jerabek <mar...@is...>
> An: dox...@li...
> Betreff: Re: [Doxygen-users] generic variable for output directory

> On 02.07.2008 08:56, Peter Schöll wrote:
> > as far as doxygen supports to evaluate environment variables within its
> config file, I'd recommend to write
> >     OUTPUT_DIRECTORY="$(ENV1)/$(ENV2)"
> > in Doxyfile itself.
> >   
> I agree that this is the best, most straight-forward way of changing 
> Doxygen parameters if you can use the same environment variable names 
> for passing the information to Doxygen in every run.
> >> My objective is to pass path info (which may be changed during the
> course
> >> of
> >> project) through command line.
> >>     
> Does this mean that you want to set a different OUTPUT_DIRECTORY for 
> every Doxygen run? If yes, then you should set an environment variable 
> to the desired directory and assign this environment variable to 
> OUTPUT_DIRECTORY in the Doxyfile as Peter Schöll suggested.
> >> I tired to pass env variable using the process mentioned in the #17 but
> it
> >> gave an error as illegal variable.
> >>     
> Where did the error message come from? The shell? Doxygen?
> >> ( cat Doxyfile ; echo "OUTPUT_DIRECTORY = $(ENV1)/$ENV2/)" ) | doxygen
> >>     
> 
> Did you forget the dash argument to Doxygen?
> 
> Besides, this line will not produce the desired effect on modern Unix 
> shells because $(ENV1) is a modern variant of `ENV1`, i.e. the shell 
> will try to execute a command called ENV1 and replace $(ENV1) with its 
> output. This is probably the reason for the error you experienced.
> 
> As said above you should simply use ENV1 and ENV2 directly in the 
> Doxyfile. If for any reason you have to use different environment 
> variable names for different Doyxgen runs you could either use
> 
> (cat Doxyfile; echo "OUTPUT_DIRECTORY=\"$ENV1/$ENV2\"") | doxygen -
> 
> or
> 
> (cat Doxyfile; echo 'OUTPUT_DIRECTORY="$(ENV1)/$(ENV2)"') | doxygen -
> 
> In the first case, the shell itself substitutes the values of ENV1 and 
> ENV2, whereas in the second case Doxygen does this.
> 
> Regards
> Martin Jerabek
> 
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