Hi,

I have a docker image in which a vibe-d application is build from source code. Every time a file is changed, unfortunately the whole vibe-d dub packages are retrieved again from dub registry and compiled again (which takes ages).

In my app.json I have these dependency declaration:
``` json
"dependencies": {
    "vibe-d:core": "0.9.0-alpha.5",
    "vibe-d:http": "0.9.0-alpha.5",
    "vibe-d:tls": "0.9.0-alpha.5"
},
"subConfigurations": {
    "vibe-d:tls": "notls"
},
```

and it would be great if could do s.th. like
RUN dub build vibe-d -y --override-config=vibe-d/notls
to fetch and prebuild the dub package. Therefore, if a file
is changed, only the application itself is compiled
but it just not works. It does not build all dependencies of vibe-d and
also notls is ignored. I tried a lot of variations but nothing has the effect
I need.

My workaround is for the moment to create a dummy dub application and compile it:

``` dockerfile
# Prebuild dub dependencies
RUN mkdir -p /tmp/foo/source && echo 'void main(){}' > /tmp/foo/source/app.d \
    && echo '{"name":"bla", "dependencies": {"vibe-d": "0.9.0-alpha.5", "vibe-d:tls": "0.9.0-alpha.5"},"subConfigurations": {"vibe-d:tls": "notls"}}' > /tmp/foo/dub.json \
    && dub build --root /tmp/foo/
```

Do I miss something here?

Kind regards
André

On Friday, 29 May 2020 at 11:45:24 UTC, Andre Pany wrote:
> André

I do it by defining a configuration “build-deps” in my dub.sdl with target type “none” and then doing the build as two steps in the dockerfile:

``` dockerfile
...
WORKDIR /build
COPY dub.s* ./
RUN dub build -v —config=build-deps
COPY src ./src
RUN dub build -v —config=executable
...

On Saturday, 30 May 2020 at 00:12:20 UTC, kookman wrote:
> On Friday, 29 May 2020 at 11:45:24 UTC, Andre Pany wrote:
>> André
>
> I do it by defining a configuration “build-deps” in my dub.sdl with target type “none” and then doing the build as two steps in the dockerfile:
>
> ``` dockerfile
> ...
> WORKDIR /build
> COPY dub.s* ./
> RUN dub build -v —config=build-deps
> COPY src ./src
> RUN dub build -v —config=executable
> ...

Fantastic, thanks a lot.

Kind regards
Andre