TODO: local node_modules linter support like eslint or textlint about diagnostic-languageserver

[terrortylor]

I use the following configuration to lint with eslint that is installed as a project dependency in node_modules:

require'lspconfig'.diagnosticls.setup{
    filetypes = {"javascript", "typescript"},
    root_dir = function(fname)
      return util.root_pattern("tsconfig.json")(fname) or
      util.root_pattern(".eslintrc.js", ".git")(fname);
    end,
    init_options = {
      linters = {
        eslint = {
          command = "./node_modules/.bin/eslint",
          rootPatterns = {".eslintrc.js", ".git"},
          debounce = 100,
          args = {
            "--stdin",
            "--stdin-filename",
            "%filepath",
            "--format",
            "json"
          },
          sourceName = "eslint",
          parseJson = {
            errorsRoot = "[0].messages",
            line = "line",
            column = "column",
            endLine = "endLine",
            endColumn = "endColumn",
            message = "[eslint] ${message} [${ruleId}]",
            security = "severity"
          },
          securities = {
            [2] = "error",
            [1] = "warning"
          }
        },
      },
      filetypes = {
        javascript = "eslint",
        typescript = "eslint"
      }
    }
  }

This uses eslint v7.12.1
and NodeJS v12.20.1

The root_dir option is set to pick up the root directory based on the .eslintrc.js file or .git directory.

[iamcco]

The todo item local node_modules linter support is done. you can use the local node_modules linters.