Re: [Haskell-community] [Haskell-cafe] technical thoughts on stack

Near as I can tell, it _is_ going to stderr just like you'd expect too $ stack build > log_output simple-library-0.1.0.0: unregistering (local file changes: src/Lib.hs) simple-library-0.1.0.0: build Preprocessing library simple-library-0.1.0.0... [1 of 1] Compiling Lib ( src/Lib.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/Lib.o ) /home/callen/work/simple-library/src/Lib.hs:7:3: warning: [-Wunused-do-bind] A do-notation statement discarded a result of type ‘[Char]’ Suppress this warning by saying ‘_ <- return "hi"’ Preprocessing executable 'simple-library-exe' for simple-library-0.1.0.0... simple-library-0.1.0.0: copy/register Installing library in /home/callen/work/simple-library/.stack-work/install/x86_64-linux/lts-7.0/8.0.1/lib/x86_64-linux-ghc-8.0.1/simple-library-0.1.0.0-IZ2irAKiR4w8tX3NVir98W Installing executable(s) in /home/callen/work/simple-library/.stack-work/install/x86_64-linux/lts-7.0/8.0.1/bin Registering simple-library-0.1.0.0... [ callen@pardalis ~/work/simple-library master ✗ ] $ stack build 2>&1 > log_output On Wed, Sep 14, 2016 at 2:21 PM, Christopher Allen wrote:

What are you talking about?

$ stack build simple-library-0.1.0.0: unregistering (local file changes: src/Lib.hs) simple-library-0.1.0.0: build Preprocessing library simple-library-0.1.0.0... [1 of 1] Compiling Lib ( src/Lib.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/Lib.o )

/home/callen/work/simple-library/src/Lib.hs:7:3: warning: [-Wunused-do-bind] A do-notation statement discarded a result of type ‘[Char]’ Suppress this warning by saying ‘_ <- return "woot"’ Preprocessing executable 'simple-library-exe' for simple-library-0.1.0.0...

On Wed, Sep 14, 2016 at 2:10 PM, Patrick Pelletier wrote:

...

On 9/14/16 10:47 AM, David Feuer wrote:

...

While we're griping about stack: it seems to place compiler output from -ddump-... in mysterious places that are hard to find without Google, and (worse) it seems to do something with stack test output that even Google can't discover.

Also, compiler warnings get squirreled away in a file that I have to go hunting for. It would be nice to have an option to print warnings (for local packages, not dependencies) to stderr.

--Patrick

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-- Chris Allen Currently working on http://haskellbook.com

-- Chris Allen Currently working on http://haskellbook.com