Error when using fzopen after changing directory

[ram02z]

To Reproduce

1. Add fzopen as a plugin
2. Invoke NNNPicker
3. Change directory
4. Invoke fzopen and pick a file
5. Error shown and the file doesn't get picked

Screenshots

Environment:

• Vim version: NVIM v0.6.0-dev+501-gcb15055c2
• Plugin manager: packer.nvim
• Plugin version: 1d5aed3
• Nnn version: 4.3

Additional context

The error doesn't occur for me if I don't change the directory that nnn.vim was invoked from.

nnn.vim config: https://github.com/ram02z/dotfiles/blob/6ee4aa967a18643a657f7d30cf4435fccb265f05/dot_config/nvim/plugin/50-plugins.lua#L321-L350

[jarun]

@mcchrish can you please take a look at it? Are you waiting for someone to pitch in?

[mcchrish]

@jarun I'm waiting for anyone to take a look.
PR is welcome and I can take a review.

[jarun]

In that case please respond to the defect with a note so someone else bothers to look into it.
What appears to be the problem? Do the error strings help?

[N-R-K]

This is probably a problem with fzopen plugin. I don't use it, so I'm not sure what's going on here. But seems to me that is the offending snippet.

# Check for picker mode
if [ "$3" ]; then
    if [ "$entry" ]; then
        if [ "-" = "$3" ]; then
            printf "%s\n" "$entry"
        else
            printf "%s\n" "$entry" > "$3"
        fi

        # Tell `nnn` to clear its internal selection
        printf "%s" "0p" > "$NNN_PIPE"
    fi

    exit 0
fi

[N-R-K]

Added the "help wanted" label so anyone who's interested can take a look.

[jarun]

@N-R-K fzopen is working as expected in this block. This is a case of calling a picker plugin while nnn is started in picker mode. See $3 in https://github.com/jarun/nnn/tree/master/plugins#access-level-of-plugins

So, if user is picking files using fzopen(), nnn should not pick files. The picker output file path is passed to the plugin (- if it's stdout) and the plugin will write picked files to it (nnn would skip writing to the output file).

[jarun]

@mizlan can you please have a look?

[N-R-K]

Can reproduce this with a dummy plugin with that block.

• Open NnnPicker
• Hover over a file (in a different directory) and invoke the dummy plugin

#!/bin/sh

# Check for picker mode
entry="$1"
if [ "$3" ]; then
    if [ "$entry" ]; then
        if [ "-" = "$3" ]; then
            printf "%s\n" "$entry"
        else
            printf "%s\n" "$entry" > "$3"
        fi

        # Tell `nnn` to clear its internal selection
        printf "%s" "0p" > "$NNN_PIPE"
    fi

    exit 0
fi

[jarun]

In explorer mode, it just opens the plugin file.

[jarun]

That's with pick a plugin method... and expected as per current code.

[N-R-K]

Okay, I know what's going on. The plugin is printing only filename, not full path. So if you change directory it becomes a problem.

[jarun]

OK. I fixed the other issue with opening the plugin (instead of run) at jarun/nnn@bdbd182.

[jarun]

@ram02z the fzopen plugin is fixed. Please confirm if the patch works for you.

[ram02z]

@ram02z the fzopen plugin is fixed. Please confirm if the patch works for you.

The patch works great, thanks for the fix @N-R-K !