--print-config outputs empty config if called not from config file directory

[vsemozhetbyt]

What version of ESLint are you using?

2.11.1

What parser (default, Babel-ESLint, etc.) are you using?

default

Please show your full configuration:

e:\DOC\prg\js\node\.eslintrc.json

{
  "root": true,

  "extends": [
    "eslint:recommended",
    "airbnb-base"
  ],

  "parserOptions": {
    "ecmaVersion": 7,
    "sourceType": "script"
  },

  "env": {
    "browser": false,
    "es6": true,
    "node": true
  },

  "rules": {
    "eqeqeq": "error",
    "no-console": "off",
    "no-extra-parens": ["error", "all"],
    "quotes": ["error", "single"],
    "spaced-comment": ["error", "always", { "exceptions": ["/", "*"] }],
    "strict": ["error", "global"]
  }
}

What did you do? Please include the actual source code causing the issue.

I have a simple test script in the subdirectory relative to the config directory:

e:\DOC\prg\js\node\-test\test.js:

'use strict';



console.log(1);

eslint output (to be sure eslint really uses all the rules frome the additional configs):

e:\DOC\prg\js\node\-test>eslint test.js

E:\DOC\prg\js\node\-test\test.js
  4:2  error  More than 2 blank lines not allowed  no-multiple-empty-lines

✖ 1 problem (1 error, 0 warnings)

I want to see all the config set via eslint --print-config test.js.

What did you expect to happen?

All the rules from .eslintrc.json + eslint:recommended + airbnb-base should be shown.

What actually happened? Please include the actual, raw output from ESLint.

The output is:

{
  "globals": {},
  "env": {},
  "rules": {},
  "parserOptions": {}
}

However, if I place test.js in the same directory with .eslintrc.json, the output is a big proper rule set.

[vsemozhetbyt]

The test case may be simplified: call eslint --print-config . from the config file directory and from a subdirectory — the first output is the the real set, the second one is empty.

[vsemozhetbyt]

Debug outputs from the config file directory:

Debug outputs from a subdirectory:

[platinumazure]

I'm really confused about showing the linting messages when the issue seems to be about --print-config. Am I missing something?

• Is this about --print-config specifically?
• Do you believe the wrong configuration is being loaded/used for your use case?

[vsemozhetbyt]

I've put the linting messages as a proving that without --print-config eslint uses all the triple rule set even being called frome a subdirectory. However, just adding --print-config to call from the same subdirectory somehow cleans rule set for printing.

[vsemozhetbyt]

I've added a note before the linting message. Is it clear now? Sorry, my English is clumsy(

[ilyavolodin]

Verified. Interesting. I though --print-config was running after configuration resolution process. If that would be the case, this should be happening.

Test case:

Running eslint --print-config Makefile.js from eslint root directory results in:

{
  "globals": {
    "__dirname": false,
    "__filename": false,
    "arguments": false,
    "Buffer": false,
    "clearImmediate": false,
    "clearInterval": false,
    "clearTimeout": false,
    "console": false,
    "exports": true,
    "GLOBAL": false,
    "global": false,
    "Intl": false,
    "module": false,
    "process": false,
    "require": false,
    "root": false,
    "setImmediate": false,
    "setInterval": false,
    "setTimeout": false
  },
  "env": {
    "node": true
  },
  "rules": {
    "no-alert": "error",
    "no-array-constructor": "error",
    "no-bitwise": "off",
    "no-caller": "error",
    "no-case-declarations": "error",
    "no-catch-shadow": "off",
    "no-class-assign": "error",
    "no-cond-assign": "error",
    "no-confusing-arrow": "off",
    "no-console": "error",
    "no-const-assign": "error",
    "no-constant-condition": "error",
    "no-continue": "off",
    "no-control-regex": "error",
    "no-debugger": "error",
    "no-delete-var": "error",
    "no-div-regex": "off",
    "no-dupe-class-members": "error",
    "no-dupe-keys": "error",
    "no-dupe-args": "error",
    "no-duplicate-case": "error",
    "no-duplicate-imports": "off",
    "no-else-return": "off",
    "no-empty": "error",
    "no-empty-character-class": "error",
    "no-empty-function": "off",
    "no-empty-pattern": "error",
    "no-eq-null": "off",
    "no-eval": "error",
    "no-ex-assign": "error",
    "no-extend-native": "error",
    "no-extra-bind": "error",
    "no-extra-boolean-cast": "error",
    "no-extra-label": "off",
    "no-extra-parens": "off",
    "no-extra-semi": "error",
    "no-fallthrough": "error",
    "no-floating-decimal": "error",
    "no-func-assign": "error",
    "no-implicit-coercion": "off",
    "no-implicit-globals": "off",
    "no-implied-eval": "error",
    "no-inline-comments": "off",
    "no-inner-declarations": "error",
    "no-invalid-regexp": "error",
    "no-invalid-this": "error",
    "no-irregular-whitespace": "error",
    "no-iterator": "error",
    "no-label-var": "error",
    "no-labels": "error",
    "no-lone-blocks": "error",
    "no-lonely-if": "off",
    "no-loop-func": "error",
    "no-mixed-requires": "error",
    "no-mixed-spaces-and-tabs": [
      "error",
      false
    ],
    "linebreak-style": "off",
    "no-multi-spaces": "error",
    "no-multi-str": "error",
    "no-multiple-empty-lines": "off",
    "no-native-reassign": "error",
    "no-negated-condition": "off",
    "no-negated-in-lhs": "error",
    "no-nested-ternary": "error",
    "no-new": "error",
    "no-new-func": "error",
    "no-new-object": "error",
    "no-new-require": "error",
    "no-new-symbol": "error",
    "no-new-wrappers": "error",
    "no-obj-calls": "error",
    "no-octal": "error",
    "no-octal-escape": "error",
    "no-param-reassign": "off",
    "no-path-concat": "error",
    "no-plusplus": "off",
    "no-process-env": "off",
    "no-process-exit": "error",
    "no-proto": "error",
    "no-prototype-builtins": "off",
    "no-redeclare": "error",
    "no-regex-spaces": "error",
    "no-restricted-globals": "off",
    "no-restricted-imports": "off",
    "no-restricted-modules": "off",
    "no-restricted-syntax": "off",
    "no-return-assign": "error",
    "no-script-url": "error",
    "no-self-assign": "error",
    "no-self-compare": "off",
    "no-sequences": "error",
    "no-shadow": "error",
    "no-shadow-restricted-names": "error",
    "no-whitespace-before-property": "off",
    "no-spaced-func": "error",
    "no-sparse-arrays": "error",
    "no-sync": "off",
    "no-ternary": "off",
    "no-trailing-spaces": "error",
    "no-this-before-super": "error",
    "no-throw-literal": "off",
    "no-undef": "error",
    "no-undef-init": "error",
    "no-undefined": "error",
    "no-unexpected-multiline": "error",
    "no-underscore-dangle": [
      "error",
      {
        "allowAfterThis": true
      }
    ],
    "no-unmodified-loop-condition": "error",
    "no-unneeded-ternary": "off",
    "no-unreachable": "error",
    "no-unsafe-finally": "off",
    "no-unused-expressions": "error",
    "no-unused-labels": "error",
    "no-unused-vars": [
      "error",
      {
        "vars": "all",
        "args": "after-used"
      }
    ],
    "no-use-before-define": "error",
    "no-useless-call": "off",
    "no-useless-computed-key": "off",
    "no-useless-concat": "error",
    "no-useless-constructor": "off",
    "no-useless-escape": "off",
    "no-useless-rename": "off",
    "no-void": "off",
    "no-var": "off",
    "no-warning-comments": "off",
    "no-with": "error",
    "no-magic-numbers": "off",
    "array-bracket-spacing": "off",
    "array-callback-return": "error",
    "arrow-body-style": "off",
    "arrow-parens": "off",
    "arrow-spacing": "off",
    "accessor-pairs": "off",
    "block-scoped-var": "off",
    "block-spacing": "error",
    "brace-style": [
      "error",
      "1tbs"
    ],
    "callback-return": [
      "error",
      [
        "cb",
        "callback",
        "next"
      ]
    ],
    "camelcase": [
      "error",
      {
        "properties": "never"
      }
    ],
    "comma-dangle": "error",
    "comma-spacing": "error",
    "comma-style": [
      "error",
      "last"
    ],
    "complexity": [
      "off",
      11
    ],
    "computed-property-spacing": "off",
    "consistent-return": "error",
    "consistent-this": "off",
    "constructor-super": "error",
    "curly": [
      "error",
      "all"
    ],
    "default-case": "error",
    "dot-location": "off",
    "dot-notation": [
      "error",
      {
        "allowKeywords": true
      }
    ],
    "eol-last": "error",
    "eqeqeq": "error",
    "func-names": "off",
    "func-style": [
      "error",
      "declaration"
    ],
    "generator-star-spacing": "off",
    "global-require": "off",
    "guard-for-in": "error",
    "handle-callback-err": [
      "error",
      "err"
    ],
    "id-length": "off",
    "indent": [
      "error",
      4,
      {
        "SwitchCase": 1
      }
    ],
    "init-declarations": "off",
    "jsx-quotes": "off",
    "key-spacing": [
      "error",
      {
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "keyword-spacing": "error",
    "lines-around-comment": [
      "error",
      {
        "beforeBlockComment": true,
        "afterBlockComment": false,
        "beforeLineComment": true,
        "afterLineComment": false
      }
    ],
    "max-depth": "off",
    "max-len": "off",
    "max-nested-callbacks": "off",
    "max-params": "off",
    "max-statements": "off",
    "max-statements-per-line": "off",
    "new-cap": "error",
    "new-parens": "error",
    "newline-after-var": "error",
    "newline-before-return": "off",
    "newline-per-chained-call": "off",
    "object-curly-spacing": [
      "off",
      "never"
    ],
    "object-property-newline": "off",
    "object-shorthand": "off",
    "one-var": "off",
    "one-var-declaration-per-line": "error",
    "operator-assignment": "off",
    "operator-linebreak": "off",
    "padded-blocks": "off",
    "prefer-arrow-callback": "off",
    "prefer-const": "off",
    "prefer-reflect": "off",
    "prefer-rest-params": "off",
    "prefer-spread": "off",
    "prefer-template": "off",
    "quote-props": [
      "error",
      "as-needed"
    ],
    "quotes": [
      "error",
      "double"
    ],
    "radix": "error",
    "id-match": "off",
    "id-blacklist": "off",
    "require-jsdoc": "error",
    "require-yield": "off",
    "semi": "error",
    "semi-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "sort-vars": "off",
    "sort-imports": "off",
    "space-before-blocks": "error",
    "space-before-function-paren": [
      "error",
      "never"
    ],
    "space-in-parens": "error",
    "space-infix-ops": "error",
    "space-unary-ops": [
      "error",
      {
        "words": true,
        "nonwords": false
      }
    ],
    "spaced-comment": [
      "error",
      "always",
      {
        "exceptions": [
          "-"
        ]
      }
    ],
    "strict": [
      "error",
      "global"
    ],
    "template-curly-spacing": "off",
    "unicode-bom": "off",
    "use-isnan": "error",
    "valid-jsdoc": [
      "error",
      {
        "prefer": {
          "return": "returns"
        }
      }
    ],
    "valid-typeof": "error",
    "vars-on-top": "off",
    "wrap-iife": "error",
    "wrap-regex": "off",
    "yield-star-spacing": "off",
    "yoda": [
      "error",
      "never"
    ]
  },
  "parserOptions": {
    "ecmaFeatures": {
      "globalReturn": true
    }
  },
  "ecmaFeatures": {},
  "extends": "./packages/eslint-config-eslint/default.yml",
  "root": true
}

Running eslint --print-config cli.js from Eslint's lib directory, results in:

{
  "globals": {},
  "env": {},
  "rules": {},
  "parserOptions": {}
}

[alberto]

I am working on this

[nzakas]

I'm a bit confused here - what are we saying is the bug?

I'm pretty sure --print-config requires that you pass a file and not a pattern, so eslint --print-config . won't work while eslint --print-config foo.js will.

[vsemozhetbyt]

Does . not mean 'current directory' for eslint? Whatever the case, you can replace . by any path — the bug is still here: calling from config file directory and calling from any subdirectory relative to config file directory have different outputs for the same path.

[platinumazure]

@nzakas I think the problem is if you have foo.js and subfolder/bar.js, --print-config simply doesn't work when you pass in subfolder/bar.js (or any path where the file is not in the same folder as the config file). See this comment for more details.

[alberto]

@nzakas Here is a failing test case using a file, running from lib:
../bin/eslint.js --print-config ./cli.js

[vsemozhetbyt]

@platinumazure the bug depends not on path and not on relation between path and config file, but from relation between CWD and config file. If you call eslint for subfolder/bar.js from the same folder with config file, it is OK.

[ilyavolodin]

@nzakas That's what I assumed as well. However, that's not what is happening. eslint --print-config . is working in the case that you have .eslintrc in the current directory, which is strange and not what I expected. But the tests that I posted are done on the file, not on the pattern. So it seems that there might be two bugs here. First one, --print-config on a file in the subdirectory returns an empty object. Second one, --print-config seems to work on patterns, when it shouldn't.