On Tuesday, 8 August 2017 at 09:21:54 UTC, Moritz Maxeiner wrote:
> On Tuesday, 8 August 2017 at 09:17:02 UTC, data pulverizer wrote:
>> Hi,
>>
>> I would like to know how to specify dmd or ldc compiler and version in a json dub file.
>>
>> Thanks in advance.
>
> You can't [1]. You can specify the compiler to use only on the dub command line via `--compiler=`.
>
> [1] https://code.dlang.org/package-format?lang=json

Any reason you couldn't, say, specify the compiler version in the dub.sdl, and dub would build it (and use it) using the regular .dub/packages mechanism?

Same should work for dub itself. Treat the current dub/dmd as a bootstrap compiler instead of the main compiler.

8/5/19 10:22 AM, FeepingCreature пишет:
> On Tuesday, 8 August 2017 at 09:21:54 UTC, Moritz Maxeiner wrote:
>> On Tuesday, 8 August 2017 at 09:17:02 UTC, data pulverizer wrote:
>>> Hi,
>>>
>>> I would like to know how to specify dmd or ldc compiler and version in a json dub file.
>>>
>>> Thanks in advance.
>>
>> You can't [1]. You can specify the compiler to use only on the dub command line via `--compiler=`.
>>
>> [1] https://code.dlang.org/package-format?lang=json
> 
> Any reason you couldn't, say, specify the compiler version in the dub.sdl, and dub would build it (and use it) using the regular .dub/packages mechanism?
> 
> Same should work for dub itself. Treat the current dub/dmd as a bootstrap compiler instead of the main compiler.

You can use Toolchain requirements (https://dub.pm/package-format-sdl.html#toolchain-requirements) to specify the compiler. But building the specific compiler version (bootstrapping) is not implemented I think.

On Monday, 5 August 2019 at 07:22:33 UTC, FeepingCreature wrote:
> On Tuesday, 8 August 2017 at 09:21:54 UTC, Moritz Maxeiner wrote:
>> On Tuesday, 8 August 2017 at 09:17:02 UTC, data pulverizer wrote:
>>> Hi,
>>>
>>> I would like to know how to specify dmd or ldc compiler and version in a json dub file.
>>>
>>> Thanks in advance.
>>
>> You can't [1]. You can specify the compiler to use only on the dub command line via `--compiler=`.
>>
>> [1] https://code.dlang.org/package-format?lang=json
>
> Any reason you couldn't, say, specify the compiler version in the dub.sdl, and dub would build it (and use it) using the regular .dub/packages mechanism?
>
> Same should work for dub itself. Treat the current dub/dmd as a bootstrap compiler instead of the main compiler.

Also the default compiler can be set in settings.json which can be located e.g. in the project folder(next version of dub).

Kind regards
Andre

On Monday, 5 August 2019 at 07:22:33 UTC, FeepingCreature wrote:
> On Tuesday, 8 August 2017 at 09:21:54 UTC, Moritz Maxeiner wrote:
>> On Tuesday, 8 August 2017 at 09:17:02 UTC, data pulverizer wrote:
>>> Hi,
>>>
>>> I would like to know how to specify dmd or ldc compiler and version in a json dub file.
>>>
>>> Thanks in advance.
>>
>> You can't [1]. You can specify the compiler to use only on the dub command line via `--compiler=`.
>>
>> [1] https://code.dlang.org/package-format?lang=json
>
> Any reason you couldn't, say, specify the compiler version in the dub.sdl, and dub would build it (and use it) using the regular .dub/packages mechanism?
>
> Same should work for dub itself. Treat the current dub/dmd as a bootstrap compiler instead of the main compiler.

You could build a Makefile (or similar) around dub which ensures the exact compiler version gets downloaded.
Here's a template I use for this purpose:
https://github.com/wilzbach/d-bootstrap