New: vue/script-indent rule (fixes #118) (#309)

* Chore: extract common part of indent

* Chore: refactor tests of html-indent

* New: vue/script-indent (fixes #118)

* Chore: upgrade deps

* Chore: fix test script

- To dedupe deps

* Chore: revive lost tests

* Update: add alignAttributesVertically

* change category

* add comments

Author: mysticatea

Diff for: .eslintignore

@@ -1,3 +1,5 @@
-node_modules
-coverage
-.nyc_output
+/.nyc_output
+/coverage
+/node_modules
+/tests/fixtures
+/tests/integrations/*/node_modules

Diff for: README.md

@@ -204,6 +204,7 @@ Enforce all the rules in this category, as well as all higher priority rules, wi
 |:---|:--------|:------------|
 | :wrench: | [vue/html-closing-bracket-newline](./docs/rules/html-closing-bracket-newline.md) | require or disallow a line break before tag's closing brackets |
 | :wrench: | [vue/html-closing-bracket-spacing](./docs/rules/html-closing-bracket-spacing.md) | require or disallow a space before tag's closing brackets |
+| :wrench: | [vue/script-indent](./docs/rules/script-indent.md) | enforce consistent indentation in `<script>` |
 
 <!--RULES_TABLE_END-->
 

Diff for: circle.yml

@@ -1,11 +1,11 @@
 machine:
   node:
-    version: 4
+    version: 8
 
 dependencies:
   pre:
     - nvm install 6
-    - nvm install 8
+    - nvm install 4
 
 test:
   override:

Diff for: docs/rules/script-indent.md

@@ -0,0 +1,85 @@
+# enforce consistent indentation in `<script>` (script-indent)
+
+- :wrench: The `--fix` option on the [command line](http://eslint.org/docs/user-guide/command-line-interface#fix) can automatically fix some of the problems reported by this rule.
+
+This rule is similar to core [indent](https://eslint.org/docs/rules/indent) rule, but it has an option for inside of `<script>` tag.
+
+## Rule Details
+
+This rule has some options.
+
+```json
+{
+  "script-indent": ["error", TYPE, {
+    "baseIndent": 0,
+    "switchCase": 0,
+    "ignores": []
+  }]
+}
+```
+
+- `TYPE` (`number | "tab"`) ... The type of indentation. Default is `2`. If this is a number, it's the number of spaces for one indent. If this is `"tab"`, it uses one tab for one indent.
+- `baseIndent` (`integer`) ... The multiplier of indentation for top-level statements. Default is `0`.
+- `switchCase` (`integer`) ... The multiplier of indentation for `case`/`default` clauses. Default is `0`.
+- `ignores` (`string[]`) ... The selector to ignore nodes. The AST spec is [here](https://github.com/mysticatea/vue-eslint-parser/blob/master/docs/ast.md). You can use [esquery](https://github.com/estools/esquery#readme) to select nodes. Default is an empty array.
+
+:+1: Examples of **correct** code for this rule:
+
+```js
+/*eslint script-indent: "error"*/
+<script>
+let a = {
+  foo: 1,
+  bar: 2
+}
+let b = {
+      foo: 1,
+      bar: 2
+    },
+    c = {
+      foo: 1,
+      bar: 2
+    }
+const d = {
+        foo: 1,
+        bar: 2
+      },
+      e = {
+        foo: 1,
+        bar: 2
+      }
+</script>
+```
+
+:+1: Examples of **correct** code for this rule:
+
+```js
+/*eslint script-indent: ["error", 2, {"baseIndent": 1}]*/
+<script>
+  let a = {
+    foo: 1,
+    bar: 2
+  }
+  let b = {
+        foo: 1,
+        bar: 2
+      },
+      c = {
+        foo: 1,
+        bar: 2
+      }
+  const d = {
+          foo: 1,
+          bar: 2
+        },
+        e = {
+          foo: 1,
+          bar: 2
+        }
+</script>
+```
+
+## Related rules
+
+- [indent](https://eslint.org/docs/rules/indent)
+- [vue/html-indent](./html-indent.md)