Closed matsumonkie closed 3 years ago
So I've tried to index another project with ghc 8.6.5 and cabal 2.4.0.1 installed and it worked fine. both methods (running the binary "naked" or prefixing it with stack exec) work fine!
One thing though, while running haskell-code-indexer
, it reinstalls Cabal even though it was already installed. Is this normal behavior?
Hi,
I haven't added support for GHC 8.8 and Cabal 3.0 yet.
One thing though, while running haskell-code-indexer, it reinstalls Cabal even though it was already installed. Is this normal behavior?
haskell-code-indexer
uses cabal-helper
(https://hackage.haskell.org/package/cabal-helper) library that builds (at runtime) an executable linked against a certain version Cabal
.
Here's a quote from cabal-helper
docs:
The fundamental problem
cabal-helper
solves is the fact that in order to access the dataCabal
stores in thesetup-config
file we have to link against lib:Cabal. However the binary format of this file is unstable and there is no backwards compatibility mechanism in the library. So to read asetup-config
file produced by a certain version of Cabal we have to link against exactly that version.To solve this problem the
cabal-helper
library builds a small executable at runtime who's only purpose is to link against lib:Cabal, read the contents ofsetup-config
and present the data there in aCabal
version independent format for consumption by thecabal-helper
library.
I haven't added support for GHC 8.8 and Cabal 3.0 yet.
I see, I got fooled by the stack-8.8.3.yaml
file :-S
Thanks a lot for the explanation!
Hello, First things first, thank you for this awesome project. I'm trying to index a simple project (just a blank project I created with
stack new ...
) but I'm failing so far :-( I'm using the stack-8.8.3.yml for haskell-code-explorer.Whether I have ghc-8.8.3 installed or not, whether I use the installed haskell-code-explorer binary or run
stack exec haskell-code-indexer -- -p myProject
it fails withcabal-helper-wrapper: Installing Cabal version 3.0.1.0 failed.
I have tried to install cabal 3.0.0.0 (with ghcup if that's relevant) but same problem.
I'm not too sure what I'm doing wrong and I'd love to have your input on this.
This is the log when I run with --verbose. Note that it says that GHC version 8.6.5.0 is used instead of 8.8.3 (also not sure if this is normal).