Plugins: How to determine ghc vs ghci

Aycan ─░rican iricanaycan at gmail.com
Tue Nov 24 08:28:50 UTC 2015


How about `GHC.Environment.getFullArgs` which includes “—interactive” when you’re in GHCi?


> On 24 Nov 2015, at 09:37, Levent Erkok <erkokl at gmail.com> wrote:
> 
> I'm working on a plugin, and would like to be able to tell if it's GHC or GHCi that's running.
> 
> I tried:
> 
>    df   <- getDynFlags
>    let isGHCi = ghcMode df == CompManager
> 
> Alas, while that correctly tells apart "ghci" from "ghc -c", it also returns True when ghc is called without the "-c" argument.
> 
> Is there a better/more robust way of figuring out whether we're in an interactive session?
> 
> -Levent.
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