nathan spindel <nathans@xxxxxxxxx> writes:
> On May 12, 2008, at 11:42 AM, Junio C Hamano wrote:
>
>> Christian Couder <chriscool@xxxxxxxxxxxxx> writes:
>>
>>> Maybe you can use a function like this not tested one:
>>>
>>> check_cmd() {
>>> cmd="$1"
>>>
>>> if type "$cmd"> /dev/null 2>&1; then
>>> if "$cmd" -v | grep Apache> /dev/null 2>&1; then
>>> httpd=$(echo "$cmd" | sed "s/apache2/httpd/")
>>> fi
>>> fi
>>> }
>>
>> One worry I have with that approach is if any and all random
>> implementations of "httpd" that live somewhere in path do not do
>> any harm when started with "-v" option. Namely, they should exit
>> without becoming a daemon and/or start the service.
>>
>> I am not convinced that would be the case.
By the way, it is a bit strange that Apache doesn't understand long
equivalent of -v, namely --version.
> I agree with that worry. Solving that in the general case is pretty
> difficult, so I think we could instead look for other clues in the
> system. Some ideas:
>
> - Use $HTTPD as defined in apachectl. (How portable is that?)
You mean what apachectl returns in Usage: (first line)?
1014:jnareb@roke:~> /usr/sbin/apachectl
Usage: /usr/sbin/httpd [-D name] [-d directory] [-f file]
> - Inspect the text of 'man httpd' to determine if it's Apache or not.
Manpages might be not installed. I think 'httpd -v' is less error
prone...
> - Only fallback on the httpd command on Mac OS X 10.5? That's pretty
> safe.
Not only MacOS X has Apache installed as httpd binary. Some Linux
distributions do that too.
P.S. I wonder if it would be possible, as absolutely last resort
fallback, to make git-instaweb to create/use very simple web server in
Perl, using HTTP::Daemon module (if it is installed), which comes from
libwww-perl.
--
Jakub Narebski
Poland
ShadeHawk on #git
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