I am trying to play with D, but I'm getting stuck with the DUB package manager.  If use DUB to download a package to my project, how do I get DUB to add what I downloaded to the dub.json file?  I have tried DUB --fetch --cache=local http-parser (for example).  It downloads the package, but then nothing is added to the list of dependencies.

I'd appreciate any help.

Thanks,
Andrew

On 13/01/2015 2:01 p.m., Andrew Grace wrote:
> I am trying to play with D, but I'm getting stuck with the DUB package
> manager.  If use DUB to download a package to my project, how do I get
> DUB to add what I downloaded to the dub.json file? I have tried DUB
> --fetch --cache=local http-parser (for example).  It downloads the
> package, but then nothing is added to the list of dependencies.
>
> I'd appreciate any help.
>
> Thanks,
> Andrew

Documentation here: http://code.dlang.org/package-format

Basically:
{
	"name": "myproject",
	...
	"dependencies": {
		"project(:subproject)?": "semver"
	}
}

There's no need to tell dub to download any package. It'll do so automatically.

On 1/13/2015 10:01 AM, Andrew Grace wrote:
> I am trying to play with D, but I'm getting stuck with the DUB package
> manager.  If use DUB to download a package to my project, how do I get
> DUB to add what I downloaded to the dub.json file? I have tried DUB
> --fetch --cache=local http-parser (for example).  It downloads the
> package, but then nothing is added to the list of dependencies.
>
> I'd appreciate any help.

As Rikki said, you don't need to download anything. You've got it rather backwards. *You* add the dependency to the dub.json and then *DUB* will pull it down and compile it automatically when you execute 'dub' or 'dub build' in the same directory as the configuration file.

See the dub.json at [1] as an example. It's a simple little TicTacToe game that has a dependency on DerelictSDL2, which, if you look at [2], you'll find has a dependency on DerelictUtil. If you clone the source, cd into the top-level directory and execute 'dub', then DUB will pull down both DerelictUtil and DerelictSDL2, compile them into libraries, compile the game code, then link it with the libraries and run the executable.

[1] https://github.com/aldacron/t3/blob/master/dub.json
[2] https://github.com/DerelictOrg/DerelictSDL2/blob/master/package.json