Private source-repository-packages over ssh do not work ("error: cannot run ssh: No such file or directory")

[ramirez7]

This template is a guide only, feel free add or omit sections as appropriate.

Describe the bug

A clear and concise description of what the bug is, including:

• Build system (eg. x86_64-linux or aarch64-darwin).
  • x86_64-linux (NixOS)
• GHC version
  • 9.2.8
• Haskell.nix version (or commit) used.
  • b81e82b87d57c1a49c14b0bc7df9e3c4719214c7

source-repository-package
    type: git
    location: ssh://gitlab.com/macaroni.dev/mayhem-engine.git
    tag: d5b6f455b83f8fe5891f2b49046e45ee6869600e
    --sha256: sha256-2UbpA9U/RtSOX1WKMKrmPHyB6sIiGqhwoPTX1TC0O99=

exporting ssh://gitlab.com/macaroni.dev/mayhem-engine.git (rev d5b6f455b83f8fe5891f2b49046e45ee6869600e) into /nix/store/m4hly5b1k8fgb3k1hmiyavqlcv4p48dj-mayhem-engine-d5b6f45
Initialized empty Git repository in /nix/store/m4hly5b1k8fgb3k1hmiyavqlcv4p48dj-mayhem-engine-d5b6f45/.git/
error: cannot run ssh: No such file or directory
fatal: unable to fork
error: cannot run ssh: No such file or directory
fatal: unable to fork
error: cannot run ssh: No such file or directory
fatal: unable to fork
Unable to checkout d5b6f455b83f8fe5891f2b49046e45ee6869600e from ssh://gitlab.com/macaroni.dev/mayhem-engine.git.

Steps To Reproduce

Add a private repository with an ssh:// url

Expected behavior

For private repositories to be accessible via ssh

Additional context

n/a

[andreabedini]

Are you running this inside nix? if so it is not a cabal bug but it might be a problem with your nix setup.

[RichardWarfield]

At least for Github, this works for me with git+ssh://git@github.com/owner/repo.git syntax

[ramirez7]

@RichardWarfield I'll try that next chance I get! Thanks

[andreabedini]

@ramirez7 Are you sure your steps to reproduce are complete?

exporting ssh://gitlab.com/macaroni.dev/mayhem-engine.git (rev d5b6f455b83f8fe5891f2b49046e45ee6869600e) into /nix/store/m4hly5b1k8fgb3k1hmiyavqlcv4p48dj-mayhem-engine-d5b6f45

does not seem a message from cabal, maybe it is from haskell.nix?

Trying to reproduce, I get the following

❯ cat cabal.project
source-repository-package
    type: git
    location: ssh://gitlab.com/macaroni.dev/mayhem-engine.git
    tag: d5b6f455b83f8fe5891f2b49046e45ee6869600e
❯ cabal build -v3 --dry-run
...
Running: /home/andrea/.nix-profile/bin/git clone --no-checkout 'ssh://gitlab.com/macaroni.dev/mayhem-engine.git' /home/andrea/Scratchpad/temp/dist-newstyle/src/mayhem-en_-71d60d8a39d7eacd
with environment: [...]
Cloning into '/home/andrea/Scratchpad/temp/dist-newstyle/src/mayhem-en_-71d60d8a39d7eacd'...
andrea@gitlab.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Which is very different from what you report above.

[johannwagner]

I ran into the same issue. It might be related to NixOS and/or single- and multi-user installations, if this works fine or not, absolutly no clue.

We have to use nix-prefetch-git to get those dependencies.
After a nix-prefetch-git https://myrepository.git hash everything works like it is supposed to.

[sebastiant]

Thanks for that @johannwagner
I tried saving myself a couple of seconds by running nix-prefetch-git with HEAD but that gets stored in a different place in the nix store and so does not work as a work-around. Thought i'd share that in case anyone else got stuck with doing that

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.