/cc @teto The second commit resulted in PATH=/bin:$PATH, this caused the chmod error because /bin contains the bsd version that doesn't support --. (Without sandboxing)

@GrahamcOfBorg build luaPackages.mpack neovim luaPackages.lgi

No Cc for me? (I agree the changes should not change anything on Linux, but I want the success of that NixOS check on record)

Oh, didn't realise you're also a lua user 😄, we could make the patches conditional but I generally prefer not to.

Not a heavy Lua user, but I do run some LÖVE stuff from time to time. A keen observer might have noticed I am the one who merges @teto's PRs most of the time; I am actually listed as the package maintainer for some Lua packages…

(on the other hand, yeah, that means that Cc doesn't matter as ofBorg eventually sends a review request — overwriting my preexisting review)

For the record: I pressed the «merge button», GitHub said that the merge failed (happens), «Try again» did not refresh the lack-of-conflict status, reloading shows the commit as merged. What the… convenient UI.

@LnL7 thanks for troubleshooting this, testing via ofborg is not very productive and I was really troubled by the message saying the folder doesn't exist while it existed on linux.
@7c6f434c Thanks for following up on the aftermath of my changes. I am sorry for the trouble but considering the amount of changes, I guess it's unavoidable but hopefully the future is brigther.

As for the changes themselves, when I looked in nixpkgs, some packages patch the path to sw_vers while others replace it with 10.10. Why did you choose the latter ?
Removing unzip from PATH means that luarocks won't be able to install src.rock (=zip files) so this should break the install of src.rock packages. I will fix it but what would you suggest @7c6f434c ? Should I just add unzip to the buildInputs ? I didn't want to increase the closure size too much but now that it has become necessary this is justified right ?

As for the changes themselves, when I looked in nixpkgs, some packages patch the path to sw_vers while others replace it with 10.10. Why did you choose the latter ?

Nevermind I just saw your answer on the other issue.

EDIT: ...and unzip is already in buildInputs... yeah false alert.

Adding unzip to $PATH in any way would effectively put it into build dependencies, there is no way around that.

It should be nativeBuildInputs, although maybe cross-builds are not the most pressing problem.

Thanks to @alyssais for the other part of troubleshooting, too!

I am having trouble installing neovim because of this issue. I am new to nix. Any suggestions on how I can get this fix to overcome my issue? Thanks

I get:

building '/nix/store/yh1nidzn34rkpqh2k070zbcpcg0w3dv1-lua5.1-mpack-1.0.7-0.drv'...
unpacking sources
unpacking source archive /nix/store/w1xca9032cbmmmq9437bsg6kh0l6k184-mpack-1.0.7-0.src.rock
sh: sw_vers: command not found
Warning: The directory '/homeless-shelter/.cache/luarocks' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing /nix/store/8r4c73pjlj6wdk0id6xl8p4j9wy203kz-luarocks-2.4.4/bin/.luarocks-wrapped with sudo, you may want sudo's -H flag.

Done. You may now enter directory
mpack-1.0.7-0/libmpack-lua-1.0.7
and type 'luarocks make' to build.
source root is ./mpack-1.0.7-0/libmpack-lua-1.0.7
chmod: --: No such file or directory
builder for '/nix/store/yh1nidzn34rkpqh2k070zbcpcg0w3dv1-lua5.1-mpack-1.0.7-0.drv' failed with exit code 1
cannot build derivation '/nix/store/yj3fg41bdpnx80cc92f5632vxk5zsykz-luajit-2.1.0-beta3-env.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/yqzryphbdpcrhjipp7mnip1h9srkjp11-neovim-unwrapped-0.3.4.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/yz2q2i3r0jha6w26y35nwfqfsw1hp0zf-neovim-0.3.4.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/3ihbv8pvqxr0p2l8r3v53c09havqy7wk-system-applications.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/2wz29fbcrs02yzgd7gk8mc20g14q134a-system-path.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/db1nx2690ksbxzvrxmnz9jimb0y5z3wy-darwin-system-19.03pre-git.drv': 1 dependencies couldn't be built
error: build of '/nix/store/db1nx2690ksbxzvrxmnz9jimb0y5z3wy-darwin-system-19.03pre-git.drv' failed

Keep an eye on http://howoldis.herokuapp.com for a channel update and rollback in the meantime. But if you don't want to rollback your channel for some reason you can use this commit temporarily.

nix-env -iA neovim -f https://github.com/NixOS/nixpkgs/archive/5b0e7de0bd2f329b506a57c54c4e68af3e2a6935.tar.gz

@LnL7 Thx for responding so fast. That is great. Which channel update am I looking for? Assume Darwin one moving to 18.10 ? Told you I am new to nix :-)