Breaking: Drop support for ESLint v3 and v4

ESLint v5.0.0 is the minimum supported version

Author: BPScott

.travis.yml

@@ -7,8 +7,6 @@ node_js:
 env:
   - ESLINT_VERSION=current
   - ESLINT_VERSION=^5
-  - ESLINT_VERSION=^4
-  - ESLINT_VERSION=^3
 install:
   - if [[ $ESLINT_VERSION != "current" ]]; then
     yarn upgrade "eslint@$ESLINT_VERSION";

eslint-plugin-prettier.js

@@ -41,46 +41,6 @@ let prettier;
 //  Helpers
 // ------------------------------------------------------------------------------
 
-/**
- * Gets the location of a given index in the source code for a given context.
- * @param {RuleContext} context - The ESLint rule context.
- * @param {number} index - An index in the source code.
- * @returns {Object} An object containing numeric `line` and `column` keys.
- */
-function getLocFromIndex(context, index) {
-  // If `sourceCode.getLocFromIndex` is available from ESLint, use it - added
-  // in ESLint 3.16.0.
-  const sourceCode = context.getSourceCode();
-  if (typeof sourceCode.getLocFromIndex === 'function') {
-    return sourceCode.getLocFromIndex(index);
-  }
-  const text = sourceCode.getText();
-  if (typeof index !== 'number') {
-    throw new TypeError('Expected `index` to be a number.');
-  }
-  if (index < 0 || index > text.length) {
-    throw new RangeError('Index out of range.');
-  }
-  // Loosely based on
-  // https://github.com/eslint/eslint/blob/18a519fa/lib/ast-utils.js#L408-L438
-  const lineEndingPattern = /\r\n|[\r\n\u2028\u2029]/g;
-  let offset = 0;
-  let line = 0;
-  let match;
-  while ((match = lineEndingPattern.exec(text))) {
-    const next = match.index + match[0].length;
-    if (index < next) {
-      break;
-    }
-    line++;
-    offset = next;
-  }
-  return {
-    line: line + 1,
-    column: index - offset
-  };
-}
-
 /**
  * Converts invisible characters to a commonly recognizable visible form.
  * @param {string} str - The string with invisibles to convert.
@@ -225,7 +185,7 @@ function generateDifferences(source, prettierSource) {
  * @returns {void}
  */
 function reportInsert(context, offset, text) {
-  const pos = getLocFromIndex(context, offset);
+  const pos = context.getSourceCode().getLocFromIndex(offset);
   const range = [offset, offset];
   context.report({
     message: 'Insert `{{ code }}`',
@@ -245,8 +205,8 @@ function reportInsert(context, offset, text) {
  * @returns {void}
  */
 function reportDelete(context, offset, text) {
-  const start = getLocFromIndex(context, offset);
-  const end = getLocFromIndex(context, offset + text.length);
+  const start = context.getSourceCode().getLocFromIndex(offset);
+  const end = context.getSourceCode().getLocFromIndex(offset + text.length);
   const range = [offset, offset + text.length];
   context.report({
     message: 'Delete `{{ code }}`',
@@ -268,8 +228,10 @@ function reportDelete(context, offset, text) {
  * @returns {void}
  */
 function reportReplace(context, offset, deleteText, insertText) {
-  const start = getLocFromIndex(context, offset);
-  const end = getLocFromIndex(context, offset + deleteText.length);
+  const start = context.getSourceCode().getLocFromIndex(offset);
+  const end = context
+    .getSourceCode()
+    .getLocFromIndex(offset + deleteText.length);
   const range = [offset, offset + deleteText.length];
   context.report({
     message: 'Replace `{{ deleteCode }}` with `{{ insertCode }}`',

package.json

@@ -39,11 +39,11 @@
     "eslint-config-not-an-aardvark": "^2.1.0",
     "eslint-config-prettier": "^3.1.0",
     "eslint-plugin-eslint-plugin": "^1.4.0",
-    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-node": "^7.0.1",
     "eslint-plugin-self": "^1.1.0",
     "mocha": "^5.2.0",
     "prettier": "^1.13.0",
-    "vue-eslint-parser": "^2.0.3"
+    "vue-eslint-parser": "^3.2.2"
   },
   "engines": {
     "node": ">=6.0.0"

yarn.lock

@@ -23,23 +23,13 @@
     moment "^2.18.1"
     semver "^5.4.1"
 
-acorn-jsx@^3.0.0:
-  version "3.0.1"
-  resolved "http://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
-  dependencies:
-    acorn "^3.0.4"
-
 acorn-jsx@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
   dependencies:
     acorn "^5.0.3"
 
-acorn@^3.0.4:
-  version "3.3.0"
-  resolved "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
-
-acorn@^5.0.3, acorn@^5.5.0, acorn@^5.6.0:
+acorn@^5.0.3, acorn@^5.6.0:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
 
@@ -221,38 +211,40 @@ eslint-config-prettier@^3.1.0:
   dependencies:
     get-stdin "^6.0.0"
 
+eslint-plugin-es@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-es/-/eslint-plugin-es-1.3.1.tgz#5acb2565db4434803d1d46a9b4cbc94b345bd028"
+  dependencies:
+    eslint-utils "^1.3.0"
+    regexpp "^2.0.0"
+
 eslint-plugin-eslint-plugin@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-eslint-plugin/-/eslint-plugin-eslint-plugin-1.4.0.tgz#382dc6692a741a52072d5f3fff5dacdcf291ef49"
 
-eslint-plugin-node@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-node/-/eslint-plugin-node-6.0.1.tgz#bf19642298064379315d7a4b2a75937376fa05e4"
+eslint-plugin-node@^7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-node/-/eslint-plugin-node-7.0.1.tgz#a6e054e50199b2edd85518b89b4e7b323c9f36db"
   dependencies:
-    ignore "^3.3.6"
+    eslint-plugin-es "^1.3.1"
+    eslint-utils "^1.3.1"
+    ignore "^4.0.2"
     minimatch "^3.0.4"
-    resolve "^1.3.3"
-    semver "^5.4.1"
+    resolve "^1.8.1"
+    semver "^5.5.0"
 
 eslint-plugin-self@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-self/-/eslint-plugin-self-1.1.0.tgz#e95b26d599f17ca0ef63dbaace8bff13c599eaef"
 
-eslint-scope@^3.7.1:
-  version "3.7.3"
-  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.3.tgz#bb507200d3d17f60247636160b4826284b108535"
-  dependencies:
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
 eslint-scope@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-4.0.0.tgz#50bf3071e9338bcdc43331794a0cb533f0136172"
   dependencies:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint-utils@^1.3.1:
+eslint-utils@^1.3.0, eslint-utils@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.3.1.tgz#9a851ba89ee7c460346f97cf8939c7298827e512"
 
@@ -303,13 +295,6 @@ eslint@^5.6.0:
     table "^4.0.3"
     text-table "^0.2.0"
 
-espree@^3.5.2:
-  version "3.5.4"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
-  dependencies:
-    acorn "^5.5.0"
-    acorn-jsx "^3.0.0"
-
 espree@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/espree/-/espree-4.0.0.tgz#253998f20a0f82db5d866385799d912a83a36634"
@@ -321,7 +306,7 @@ esprima@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
 
-esquery@^1.0.0, esquery@^1.0.1:
+esquery@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
   dependencies:
@@ -458,11 +443,7 @@ iconv-lite@^0.4.24:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-ignore@^3.3.6:
-  version "3.3.10"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
-
-ignore@^4.0.6:
+ignore@^4.0.2, ignore@^4.0.6:
   version "4.0.6"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
 
@@ -717,7 +698,7 @@ resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
 
-resolve@^1.3.3:
+resolve@^1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
   dependencies:
@@ -850,16 +831,16 @@ uri-js@^4.2.2:
   dependencies:
     punycode "^2.1.0"
 
-vue-eslint-parser@^2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-2.0.3.tgz#c268c96c6d94cfe3d938a5f7593959b0ca3360d1"
+vue-eslint-parser@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-3.2.2.tgz#47c971ee4c39b0ee7d7f5e154cb621beb22f7a34"
   dependencies:
     debug "^3.1.0"
-    eslint-scope "^3.7.1"
+    eslint-scope "^4.0.0"
     eslint-visitor-keys "^1.0.0"
-    espree "^3.5.2"
-    esquery "^1.0.0"
-    lodash "^4.17.4"
+    espree "^4.0.0"
+    esquery "^1.0.1"
+    lodash "^4.17.10"
 
 which@^1.2.9:
   version "1.3.1"