Lint messages are shown for adjacent files

[vafu]

I'm using "ktlint" for Kotlin and I see lint messages shown not only for opened file, but for adjacent ones.
I'm using coc extension.

{
    "languageserver": {
        "kotlin": {
	    "command": "kotlin-language-server",
	        "filetypes": ["kotlin"]
        },

        "dls": {
            "command": "diagnostic-languageserver",
            "args": ["--stdio"],
            "filetypes": [ "kotlin" ],
            "initializationOptions": {
                "linters": {
                    "ktlint": {
                        "command": "ktlint",
                        "sourceName": "ktlint",
                        "formatLines": 1,
                        "formatPattern": [ 
                            "^[^:]+:(\\d+):(\\d+):\\s+(.*)$",
                            { 
                                "line": 1,
                                "column": 2,
                                "message" : [0]
                            }
                        ]
                    }
                },
                "formatters": {
                    "ktlint" : {
                        "command": "ktlint",
                        "args" : [ "--format"]
                    }
                },
                "filetypes": {
                    "kotlin": "ktlint"
                },
                "formatFileTypes" : {
                    "kotlin": "ktlint"
                }
            }
        }
    }
}

[vafu]

here I intentionally made an error in file B.
however it's shown in file A.

[iamcco]

You should make sure to config kotlin only lint the file you open.

[vafu]

@iamcco how can I provide current file parameter to the linter using json config ?

[iamcco]

look at https://github.com/iamcco/diagnostic-languageserver#args-additional-syntax

[vafu]

"args" : [ "%filename" ],` did the trick, thank you