Language-server-protocol: Convert JSON to LSP output format ?

[KVGarg]

coala provides a unified interface for linting and fixing code with a single configuration file named .coafile using coala-bears. Using command-line tool, the coala output reults can be collected in a JSON file.
I was looking a way to find out how can I convert these JSON results to LSP output format? or any another way I can get LSP output over my project files whenever i run coala tool over it?
Have tried to gone through documentation but couldn't gathered much information about what I'm looking for.
Need help over this!

[dbaeumer]

The best thing I can think of is writing a language server that reads the .coafile and converts it to LSP JSON as specified here: https://microsoft.github.io/language-server-protocol/specification.

[KVGarg]

Is there any such implementation or an example of such conversions that can help me?

[rcjsuen]

@KVGarg It sounds to me like you would have to do the following based on the JSON output:

1. Convert the line number/ranges of the warning/error/whatever in affected_code.
2. Convert the message in message.
3. Optionally convert severity.
4. Use affected_code to identify the relevant Location of the file.

This is how I would start anyway. Does that help?

{
  "results": {
    "cli": [
      {
        "additional_info": "Your source code contains trailing whitespaces. Those usually have no meaning. Please consider removing them.",
        "affected_code": [
          {
            "end": {
              "column": null,
              "file": "/app/src/main.c",
              "line": 1
            },
            "file": "/app/src/main.c",
            "start": {
              "column": null,
              "file": "/app/src/main.c",
              "line": 1
            }
          }
        ],
        "aspect": "NoneType",
        "confidence": 100,
        "debug_msg": "",
        "diffs": {
          "/app/src/main.c": "--- \n+++ \n@@ -1,4 +1,4 @@\n-#include <stdio.h> \n+#include <stdio.h>\n \n int main(void) {\n     printf(\"Welcome to coala. Keep following the tutorial, you are doing a great job so far!\\n\");\n"
        },
        "id": 179057403958711993733277794052454578827,
        "message": "Line contains following spacing inconsistencies:\n- Trailing whitespaces.",
        "message_arguments": {},
        "message_base": "Line contains following spacing inconsistencies:\n- Trailing whitespaces.",
        "origin": "SpaceConsistencyBear",
        "severity": 1
      }
    ]
  }

[KVGarg]

Does that help?

@dbaeumer @rcjsuen Thnx for such great help. It actually gave me a clear path on how to achieve my goal. Thank U so much :+1: :innocent:

[dbaeumer]

You are welcome.

I will close the issue then.