It seems like I've managed to make it work like I wanted using this rule:
* * *
# Turn rewrite engine on
RewriteEngine On
# Fix missing trailing slashes for foo.mydomain.com
RewriteCond %{HTTP_HOST} ^foo\.mydomain\.com$ [NC]
RewriteCond %{DOCUMENT_ROOT}/foo%{REQUEST_URI}/ -d
RewriteRule [^/]$ %{REQUEST_URI}/ [R=301,L]
# Change DocumentRoot for foo.mydomain.com
RewriteCond %{HTTP_HOST} ^foo\.mydomain\.com$
RewriteCond %{ENV:REDIRECT_STATUS} ^$
RewriteRule .* /foo%{REQUEST_URI} [QSA,L]
* * *
Thanks everyone for your help.
On Sun, Mar 18, 2012 at 11:36 PM, Nala Gnirut <nala.gni...@gmail.com> wrote:
> On Sun, Mar 18, 2012 at 11:16 PM, Eric Covener <cove...@gmail.com> wrote:
>
>> The P flag is explicitly used to proxy. If you want to redirect,
>> substitute a full URL and use the R flag instead.
>>
>
> I need to dynamically change DocumentRoot for some subdomains pointing to
> the same local path.
>
> This rule works (almost) as expected, but has an issue with links to
> subfolders without trailing slash:
>
> RewriteCond %{HTTP_HOST} ^foo\.domain\.com$
>
> RewriteCond %{ENV:REDIRECT_STATUS} ^$
> RewriteRule .* /foo%{REQUEST_URI} [QSA,L]
>
> That is
>
> http://foo.domain.com/bar/ works, while
>
> http://foo.domain.com/bar is redirected to a wrong local path
> (/foo/foo/bar instead of /foo/bar)
>
