Vanessa McHale writes:

Hi Magnus,

I would use getEnv http://hackage.haskell.org/package/base-4.11.1.0/docs/System-Environment.htm... or lookupEnv, along with Template Haskell and the runIO http://hackage.haskell.org/package/template-haskell-2.13.0.0/docs/Language-H... function. This would allow you to embed environment variables at compile time.

Thanks! That were indeed the functions I was looking for. I ended up with the following: ```haskell import Data.Maybe (fromMaybe) import Language.Haskell.TH (ExpQ, runIO, stringE) import System.Environment (lookupEnv) getBuildEnv :: String -> String -> ExpQ getBuildEnv def varname = (runIO $ fromMaybe def <$> lookupEnv varname) >>= stringE ``` /M -- Magnus Therning OpenPGP: 0x927912051716CE39 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus Ah, good taste! What a dreadful thing! Taste is the enemy of creativeness. — Pablo Picasso

Here is a package for embedding git info https://hackage.haskell.org/package/gitrev Cheers, Adam On Fri, 4 May 2018 at 15:00, Vo Minh Thu wrote:

Hi,

I would search for some custom setup.hs with git describe on Google.

I know I did something along those lines in the past. I'll try to find it again.

Cheers, Thu

Le ven. 4 mai 2018 à 14:47, Magnus Therning a écrit :

...

I'm looking for a way to pick up the CI buildnumber from the environment (e.g. $TRAVIS_BUILD_NUMBER) and use it as part of of the output of `my-tool --version`. I don't really know where to start looking, so I'm hoping someone on the list has already done something similar and can point me to a working example :)

/M

-- Magnus Therning OpenPGP: 0x927912051716CE39 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus

I am always doing that which I cannot do, in order that I may learn how to do it. — Pablo Picasso _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.

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