Get Hlint to work on own computer

[Annika Johansson]

Hi!

We get the following terminal messages when trying to run hlint on our code:

dhcp-192217:~ annikajohansson$ cabal install hlint

Resolving dependencies...

All the requested packages are already installed:

hlint-1.9.12

Use --reinstall if you want to reinstall anyway.

dhcp-192217:~ annikajohansson$ cd Dropbox/Chalmers/FunktionellProgrammering/Lab2

dhcp-192217:Lab2 annikajohansson$ ls

BlackJack.hs BlackJack1.hs Wrapper.hs

BlackJack.hs kopia Cards.hs psuedoLab2B.txt

dhcp-192217:Lab2 annikajohansson$ hlint BlackJack.hs

-bash: hlint: command not found

So basically I have hlint installed but the command cannot be found?

Does anyone else have this problem?

Any tips?

Thank you in advance!

Ellinor and Annika

[Leif Schelin]

So it's installed then. The reason bash cannot find it must be that it is not present in the $PATH$. You can modify the PATH system variable in ~/.bash_profile:

export PATH="$PATH:/.../directory/to/export"

In my case:

export PATH="$PATH:$HOME/Library/Haskell/bin"

where hlint is installed at $HOME/Library/Haskell/bin/hlint

[Annika Johansson]

Hello again! 

Thank you for you help!

Its very weird, I can't find where hlint is installed, if I search for them in my files I cannot find it and its not in my Haskell directory.

That makes it difficult to add to the path as: 

-------

export PATH="$PATH:/.../directory/to/export"

In my case:

export PATH="$PATH:$HOME/Library/Haskell/bin"

where hlint is installed at $HOME/Library/Haskell/bin/hlint

---------

Cause I don't know which directory to add...? Or am I misunderstanding something?

Sorry, having a bachelor in math this is quite new for me.

Thanks again for any help!

Annika and Ellinor

[Annika Johansson]

Hi!

Thank you for your answer! The problem now seems to be that I can't find were hlint is installed. Its not in the Haskell directory and a search on my computer can't find it... How do I know what directory to add to the path then?

Sorry for my confusion, having a bachelor in math this is quite new for me.

Thanks again for any help!

Annika

Den torsdagen den 13:e november 2014 kl. 19:08:55 UTC+1 skrev Annika Johansson:

[Anton Lindgren]

Try typing this (It seems you're running either OS X or linux)

"which hlint"

Which for me prints:

"/Users/atamon/.cabal/bin/hlint"

So in my /Users/atamon/.bash_profile I have added a line

"export PATH=$HOME/.cabal/bin:$PATH"

at the end of the file.

Save the file, and open a new terminal and things might work if you're lucky :)

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[Simon Huber]

Hi Annika and Ellinor,

On Fri, Nov 14, 2014 at 9:40 AM, Annika Johansson <annik...@gmail.com> wrote:
> Its very weird, I can't find where hlint is installed, if I search for them
> in my files I cannot find it and its not in my Haskell directory.

Just to clarify: do you run OSX or Linux? I remember vaguely that on
OSX there is a file called $HOME/.cabal/where-is-my-stuff.txt (or
something very similar) which tells you where the executables get
installed. On Linux, the directory usually is $HOME/.cabal/bin

--Simon