Error on :edit a/b/c when parent dir (a/b) doesn't exist

[tmillr]

Have you read the docs and searched existing issues?

• I have read the README's troubleshooting guide.
• I have searched existing issues.
• I have searched existing discussions.
• I have searched the existing issues of other plugins related to this issue (if applicable).
• I have searched the existing rust-analyzer issues (if applicable).
• I can reproduce the issue with stable Neovim (not a distribution or nightly) and the minimal config.

Neovim version (nvim -v)

0.10

Operating system/version

macOS 14.2.1

Output of :checkhealth rustaceanvim

n/a

How to reproduce the issue

Run :e src/dir/file.rs where ./src exists but ./src/dir does not.

Expected behaviour

No error.

Actual behaviour

The plugin errors:

"src/new/new.rs" [New DIRECTORY]                                                                                                                                                 
Error detected while processing BufNewFile Autocommands for "*":                                                                                                                 
Error executing lua callback: ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35: Error executing lua: ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:36
: BufNewFile Autocommands for "*"..FileType Autocommands for "*"..function <SNR>1_LoadFTPlugin[20]..script /nix/store/d3g7mg2n16zqzx5g659p379jfqfi52fi-vimplugin-lua5.1-rustacean
vim-4.22.8-1-unstable-2024-05-16/ftplugin/rust.lua: Vim(runtime):E5113: Error while calling lua chunk: Vim:E475: Invalid argument: expected valid directory                      
stack traceback:                                                                                                                                                                 
        [C]: in function 'jobstart'                                                                                                                                              
        ...imPackages/start/rustaceanvim/lua/rustaceanvim/cargo.lua:54: in function 'get_root_dir'                                                                               
        ...ovimPackages/start/rustaceanvim/lua/rustaceanvim/lsp.lua:98: in function 'start'                                                                                      
        ...taceanvim-4.22.8-1-unstable-2024-05-16/ftplugin/rust.lua:56: in main chunk                                                                                            
        [C]: in function 'nvim_cmd'                                                                                                                                              
        ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:36: in function <...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35>                             
        [C]: in function 'nvim_buf_call'                                                                                                                                         
        ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35: in function <...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:10>                             
stack traceback:                                                                                                                                                                 
        [C]: in function 'nvim_cmd'                                                                                                                                              
        ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:36: in function <...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35>                             
        [C]: in function 'nvim_buf_call'                                                                                                                                         
        ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35: in function <...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:10>                             
stack traceback:                                                                                                                                                                 
        [C]: in function 'nvim_buf_call'                                                                                                                                         
        ...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:35: in function <...-neovim-unwrapped-0.10.0/share/nvim/runtime/filetype.lua:10>                             
Press ENTER or type command to continue

The minimal config used to reproduce this issue.

n/a

[tmillr]

This is caused by the jobstart() call receiving an invalid/non-existent cwd here:

rustaceanvim/lua/rustaceanvim/cargo.lua

Lines 54 to 60 in b5d6ac5

	local cm = vim.fn.jobstart(cmd, {
	on_stdout = function(_, d, _)
	cargo_metadata = table.concat(d, '\n')
	end,
	stdout_buffered = true,
	cwd = path,
	})

I believe the cwd that gets passed is just the dirname() of the current/edited buffer, which in this case doesn't exist yet (but will when the user later writes the buf with :w ++p), hence the error. Perhaps, instead, the first directory that exists (going from right to left) could be passed? Also I could submit a patch, but I'm not overly familiar with this plugin and its inner-workings.

[mrcjkb]

Hey 👋

Thanks for the report and investigation. 🙏
I'll look into fixing it in the next few days.