Improve command not found errors #2498
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grahamc
reviewed
Oct 30, 2018
src/libexpr/primops/fetchGit.cc
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| std::ostringstream out; | ||
| out << e.what() << std::endl; | ||
| out << "The program 'git' is currently not installed. It is required by builtins.fetchGit" << std::endl; | ||
| out << "You can install it by typing one of the following:" << std::endl; |
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| out << "You can install it by typing one of the following:" << std::endl; | |
| out << "You can install it by running the following:" << std::endl; |
grahamc
reviewed
Oct 30, 2018
| std::ostringstream out; | ||
| out << e.what() << std::endl; | ||
| out << "The program 'hg' is currently not installed. It is required by builtins.fetchMercurial" << std::endl; | ||
| out << "You can install it by typing one of the following:" << std::endl; |
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| out << "You can install it by typing one of the following:" << std::endl; | |
| out << "You can install it by running the following:" << std::endl; |
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This is awesome! |
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edolstra
reviewed
Oct 30, 2018
src/libexpr/primops/fetchGit.cc
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| if (state.allowedPaths) | ||
| state.allowedPaths->insert(gitInfo.storePath); | ||
| } catch (ExecError & e) { | ||
| if (e.status / 256 == 127) { |
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Should be WEXITSTATUS(e.status) == 127.
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Thanks, didn't realise where to look for that.
edolstra
reviewed
Oct 30, 2018
src/libexpr/primops/fetchGit.cc
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| out << "The program 'git' is currently not installed. It is required for builtins.fetchGit" << std::endl; | ||
| out << "You can install it by running the following:" << std::endl; | ||
| out << "nix-env -f '<nixpkgs>' -iA git"; | ||
| throw ExecError(e.status, out.str()); |
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This should use format strings:
throw ExecError("%s\nThe program 'git' is currently not installed. ...", e.what());
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ping |
Bash uses the same exit code to indictate a binary was not found in PATH.
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Just built the rebased version, and checked out the code at https://github.com/NixOS/nix/pull/2498/files?w=1 Looks good to me I think |
edolstra
reviewed
Jul 2, 2019
src/libexpr/primops/fetchGit.cc
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| if (state.allowedPaths) | ||
| state.allowedPaths->insert(state.store->toRealPath(gitInfo.storePath)); | ||
| } catch (ExecError & e) { |
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It's better to put this check in exportGit because (on the flakes branch) it's used in other places as well.
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Sure, should I do the same for mercurial?
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Sure, should I do the same for mercurial?
Yeah, probably should :)
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Still relevant but needs a rebase. Current output with flakes is: |
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I'm happy to rebase this, but it's been open for quite some time without getting attention. |
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I marked this as stale due to inactivity. → More info |
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I closed this issue due to inactivity. → More info |
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Improves error message when git/mercurial are not available. eg.