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hs-source-dirs starting with ../ are not included in the -i<dir> arguments when using stack ghci file.hs #2895

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tallen-imvu opened this issue Jan 4, 2017 · 4 comments

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@tallen-imvu
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@tallen-imvu tallen-imvu commented Jan 4, 2017

Summary

stack ghci <target file> will correctly determine include directories using the cabal file's hs-source-dirs property unless the source directory starts with a ../
stack build however deals with this correctly.

Steps to reproduce

  1. add a relative path to hs-source-dirs:
    ex:
    hs-source-dirs: . ../extra

  2. Add a module to the ../extra directory and import it in your main file

  3. run command stack build
    everything should work

  4. run command stack ghci <path to main>

Expected

ghci launched with package loaded

Actual

Error in compiling due to failing to load the extra module. Because it cannot find it.

running the stack ghci command with --version shows that the ../extra directory is not being added to the list of -i<directory> flags passed to ghci.
If the module is moved to a directory that does not require a ../ prefix, then that directory is included properly.

Stack version

$ stack --version
Version 1.3.2, Git revision 3f675146590da4f3edf768b89355f798229da2a5 (4395 commits) x86_64 hpack-0.15.0

Method of installation

@mgsloan
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@mgsloan mgsloan commented Jan 6, 2017

Hmm, I cannot reproduce the issue. For me if I have

library
  hs-source-dirs:      src ../issue2895-extra
  exposed-modules:     Lib Huh

It works (Huh.hs is in ../issue2895-extra). Perhaps your module is not listed in exposed-modules / other-modules?

@tallen-imvu
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@tallen-imvu tallen-imvu commented Jan 6, 2017

I put up a reproducing repo here

@tallen-imvu
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@tallen-imvu tallen-imvu commented Jan 13, 2017

Oh, there it is.
It is the parseRelDir on line 423 of src/Stack/Package.hs
Pull request incomming

mgsloan added a commit that referenced this issue Jan 31, 2017
for 'stack ghci', don't omit hsSourceDirs that have '..' in them. #2895
@mgsloan
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@mgsloan mgsloan commented Jan 31, 2017

Thanks for finding and fixing!!

@mgsloan mgsloan closed this Jan 31, 2017
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2 participants