Is this means ktlint don't return anythng ?

[fitrh]

I have tried ktlint diagnostic and its seems it is not return diagnostic result

I have this in my log

[TRACE Tue 17 May 2022 03:46:07 PM WITA] .../pack/packer/opt/null-ls.nvim/lua/null-ls/generators.lua:21: running generators for method NULL_LS_DIAGNOSTICS_ON_OPEN
[DEBUG Tue 17 May 2022 03:46:07 PM WITA] ...t/null-ls.nvim/lua/null-ls/helpers/generator_factory.lua:344: spawning command "ktlint" at /home/fitrh/git/kotlin-quick-start with args { "--relative", "--reporter=json" }
[TRACE Tue 17 May 2022 03:46:15 PM WITA] ...t/null-ls.nvim/lua/null-ls/helpers/generator_factory.lua:217: error output: nil
[TRACE Tue 17 May 2022 03:46:15 PM WITA] ...t/null-ls.nvim/lua/null-ls/helpers/generator_factory.lua:218: output: [
    {
        "file": "src/main/kotlin/quick/start/App.kt",
        "errors": [
            {
                "line": 6,
                "column": 17,
                "message": "Unnecessary block (\"{}\")",
                "rule": "no-empty-class-body"
            },
            {
                "line": 14,
                "column": 1,
                "message": "Unexpected indentation (0) (should be 4)",
                "rule": "indent"
            }
        ]
    }
]

[TRACE Tue 17 May 2022 03:46:15 PM WITA] ...pack/packer/opt/null-ls.nvim/lua/null-ls/diagnostics.lua:169: received diagnostics from source 7
[TRACE Tue 17 May 2022 03:46:15 PM WITA] ...pack/packer/opt/null-ls.nvim/lua/null-ls/diagnostics.lua:170: {}

How I can confirm that on_output works ? because when I put print statement inside of it but nothing happen

[jose-elias-alvarez]

The issue, as far as I can tell, is this line that expects output to come via stderr. Removing that line seems to make things work for me, though I'm wondering if there's a version incompatibility or some other reason why the option was set in the first place.

@ObserverOfTime, since you worked on the PR that added this linter, do you have any ideas?

[ObserverOfTime]

Indeed, it seems you can remove that line. Either I made a mistake or it was changed recently.

[jose-elias-alvarez]

Thanks for confirming! I removed the option in f6852c2, so let me know if it's working okay now.

[fitrh]

Thanks, it is working now