Is there a way to specify root dir by variable?

[Jiří Sedláček]

Hi,

I would like the config bellow to work :-) The problem/feature is that $Dir does not get replaced because it is under "root" key. So far I have managed to start several instances of zerogw on single machine using different variables (Port). This might make me generate a separate config file for every zerogw instance. I would like to avoid that.

_Dir: &Dir ./some/dir

_Port: &Port 8000

Server:

  listen:

    - host: 0.0.0.0

      port: $Port

Routing:

  routing: !Suffix ~

  routing-by: !Header Host

  map:

      "*":

        routing: !Prefix ~

        routing-by: !Uri ~

        map:

            "/path*":

              static:

                enabled: yes

                root: $Dir

                restrict-root: no

Cheers

Jiri

[Paul Colomiets]

Hi Jiri,

On Wed, Sep 25, 2013 at 5:31 PM, Jiří Sedláček
<yirie.se...@gmail.com> wrote:
> Hi,
>
> I would like the config bellow to work :-) The problem/feature is that $Dir
> does not get replaced because it is under "root" key. So far I have managed
> to start several instances of zerogw on single machine using different
> variables (Port). This might make me generate a separate config file for
> every zerogw instance. I would like to avoid that.
>

Unfortunately "$var" substitutions currently work for string and int
types only (And file and dir are separate types in coyaml). However in
your case you may use yamlish "*Dir" that works for any type
(including lists and mappings) with the limitation that you can't
substitute part of the string. If that would not work for you, let me
know, the former issue should be easy to fix (but backwards
compatibility might be a problem)

--
Paul

[Jiří Sedláček]

Hi Paul,

thanks for the tips. It almost works. *Dir does get substituted but it is not possible to set it from command line ("-D Dir='/cmd/line/path'"). In the example bellow it always puts the "./some/dir" in place of *Dir even though I set it on the command line.

_Dir: &Dir ./some/dir

_Port: &Port 8000

Server:

  listen:

    - host: 0.0.0.0

      port: $Port

Routing:

  routing: !Suffix ~

  routing-by: !Header Host

  map:

      "*":

        routing: !Prefix ~

        routing-by: !Uri ~

        map:

            "/path*":

              static:

                enabled: yes

                root: *Dir

                restrict-root: no

But it is not a big deal. I will just pregenerate the config file right before zerogw execution.

Jiri

--
Paul

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