Add schema for prettier 1.8.2 (#400)

* Add schema for prettier 1.8.2

* Use descriptions from `prettier --help`

They are more succinct than the ones provided on their website.

* Add prettierrc-1.8.2 to the catalog

src/api/json/catalog.json

@@ -403,7 +403,10 @@
       "name": "prettierrc.json",
       "description": ".prettierrc configuration file",
       "fileMatch": [ ".prettierrc", ".prettierrc.json" ],
-      "url": "http://json.schemastore.org/prettierrc"
+      "url": "http://json.schemastore.org/prettierrc",
+      "versions": {
+        "1.8.2": "http://json.schemastore.org/prettierrc-1.8.2"
+      }
     },
     {
       "name": "project.json",

src/schemas/json/prettierrc-1.8.2.json

@@ -0,0 +1,138 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Schema for .prettierrc",
+
+  "definitions": {
+    "optionsDefinition": {
+      "properties": {
+        "arrowParens": {
+          "default": "avoid",
+          "description": "Include parentheses around a sole arrow function parameter.",
+          "enum": ["avoid", "always"],
+          "type": "string"
+        },
+        "bracketSpacing": {
+          "default": true,
+          "description": "Print spaces between brackets in object literals.",
+          "type": "boolean"
+        },
+        "insertPragma": {
+          "default": false,
+          "description": "Insert @format pragma into file's first docblock comment.",
+          "type": "boolean"
+        },
+        "jsxBracketSameLine": {
+          "default": false,
+          "description": "Put the > of a multi-line JSX element at the end of the last line instead of being alone on the next line.",
+          "type": "boolean"
+        },
+        "parser": {
+          "enum": [
+            "babylon",
+            "flow",
+            "typescript",
+            "postcss",
+            "json",
+            "graphql",
+            "markdown"
+          ],
+          "description": "Specify which parser to use.",
+          "default": "babylon",
+          "type": "string"
+        },
+        "printWidth": {
+          "default": 80,
+          "description": "Specify the line length that the printer will wrap on.",
+          "type": "integer"
+        },
+        "proseWrap": {
+          "default": "preserve",
+          "description": "How to wrap prose.",
+          "enum": ["always", "never", "preserve"],
+          "type": "string"
+        },
+        "requirePragma": {
+          "default": false,
+          "description": "Require either '@prettier' or '@format' to be present in the file's first docblock comment in order for it to be formatted.",
+          "type": "boolean"
+        },
+        "semi": {
+          "default": true,
+          "description": "Print semicolons at the ends of statements.",
+          "type": "boolean"
+        },
+        "singleQuote": {
+          "default": false,
+          "description": "Use single quotes instead of double quotes.",
+          "type": "boolean"
+        },
+        "tabWidth": {
+          "default": 2,
+          "description": "Specify the number of spaces per indentation-level.",
+          "type": "integer"
+        },
+        "trailingComma": {
+          "default": "none",
+          "description": "Print trailing commas wherever possible.",
+          "enum": ["none", "all", "es5"],
+          "type": "string"
+        },
+        "useTabs": {
+          "default": false,
+          "description": "Indent lines with tabs instead of spaces.",
+          "type": "boolean"
+        }
+      }
+    },
+    "overridesDefinition": {
+      "properties": {
+        "overrides": {
+          "description": "Provide a list of patterns to override prettier configuration.",
+          "items": {
+            "required": ["files"],
+            "properties": {
+              "files": {
+                "description": "Include these files in this override.",
+                "oneOf": [
+                  { "type": "string" },
+                  {
+                    "items": {
+                      "type": "string"
+                    },
+                    "type": "array"
+                  }
+                ]
+              },
+              "excludeFiles": {
+                "description": "Exclude these files from this override.",
+                "oneOf": [
+                  { "type": "string" },
+                  {
+                    "items": {
+                      "type": "string"
+                    },
+                    "type": "array"
+                  }
+                ]
+              },
+              "options": {
+                "type": "object",
+                "description": "The options to apply for this override.",
+                "$ref": "#/definitions/optionsDefinition"
+              }
+            },
+            "additionalProperties": false,
+            "type": "object"
+          },
+          "type": "array"
+        }
+      }
+    }
+  },
+
+  "type": "object",
+  "allOf": [
+    { "$ref": "#/definitions/optionsDefinition" },
+    { "$ref": "#/definitions/overridesDefinition" }
+  ]
+}