Building a project with multiple packages indents compiler output, increasing vim woe

[chreekat]

Like any decent editor, vim can catch and parse compiler output, creating a jump list for errors. Unfortunately, configuring it is as ancient and wizardly as vim itself. The fact that stack will output compiler errors with or without leading spaces, depending on whether or not multiple packages are being built, makes it harder than I want to deal with. I am stuck building packages one at a time.

## WHOLE PROJECT

stripe-core-2.1.0: build

--  While building package stripe-core-2.1.0 using:
      /home/b/.stack/setup-exe-cache/x86_64-linux/setup-Simple-Cabal-1.22.4.0-ghc-7.10.2 --builddir=.stack-work/dist/x86_64-linux/Cabal-1.22.4.0 build lib:stripe-core --ghc-options " -ddump-hi -ddump-to-file"
    Process exited with code: ExitFailure 1
    Logs have been written to: /home/b/src/Haskell/stripe/.stack-work/logs/stripe-core-2.1.0.log

    Preprocessing library stripe-core-2.1.0...
    [ 1 of 25] Compiling Web.Stripe.Error ( src/Web/Stripe/Error.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Web/Stripe/Error.o )

    /home/b/src/Haskell/stripe/stripe-core/src/Web/Stripe/Error.hs:17:1: Warning:
        The import of ‘Control.Applicative’ is redundant
          except perhaps to import instances from ‘Control.Applicative’
        To import instances alone, use: import Control.Applicative()

    <no location info>: 
    Failing due to -Werror.


## SINGLE PACKAGE

stripe-core-2.1.0: configure
Configuring stripe-core-2.1.0...
stripe-core-2.1.0: build
Preprocessing library stripe-core-2.1.0...
[ 1 of 25] Compiling Web.Stripe.Error ( src/Web/Stripe/Error.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Web/Stripe/Error.o )

/home/b/src/Haskell/stripe/stripe-core/src/Web/Stripe/Error.hs:17:1: Warning:
    The import of ‘Control.Applicative’ is redundant
      except perhaps to import instances from ‘Control.Applicative’
    To import instances alone, use: import Control.Applicative()

<no location info>: 
Failing due to -Werror.

--  While building package stripe-core-2.1.0 using:
      /home/b/.stack/setup-exe-cache/x86_64-linux/setup-Simple-Cabal-1.22.4.0-ghc-7.10.2 --builddir=.stack-work/dist/x86_64-linux/Cabal-1.22.4.0 build lib:stripe-core --ghc-options " -ddump-hi -ddump-to-file"
    Process exited with code: ExitFailure 1

[chreekat]

I can try to make a more complicated version of the error format parser, but I just wanted to point this out.

[mgsloan]

Makes sense! Should be an easy fix.

[chreekat]

Awesome! I'll look into it if I have time ^{not this week famous last words}

[chreekat]

I also remembered that vim supports multiple "compilers" with their own errorformats. I created one for stack that expects more whitespace, and that's good enough for me for now.

stack

CompilerSet efm =
    \%C\ \ \ \ \ \ \ \ %m,
    \%-G\\\\s%#,
    \%E\ %#%f:%l:%c:\ Error:\ %m,
    \%E\ %#%f:%l:%c:\ Error:,
    \%W\ %#%f:%l:%c:\ Warning:\ %m,
    \%W\ %#%f:%l:%c:\ Warning:,
    \%E\ %#%f:%l:%c:\ %m,
    \%E\ %#%f:%l:%c:,
    \%E\ %#%f:%l:\ %m,
    \%-G%.%#

ghc

CompilerSet efm =
    \%C\ \ \ \ %m,
    \%-G\\\\s%#,
    \%E%f:%l:%c:\ Error:\ %m,
    \%E%f:%l:%c:\ Error:,
    \%W%f:%l:%c:\ Warning:\ %m,
    \%W%f:%l:%c:\ Warning:,
    \%E%f:%l:%c:\ %m,
    \%E%f:%l:%c:,
    \%E%f:%l:\ %m,
    \%-G%.%#

At: bDotfiles:vim/compiler.