fix(precise-formatters/prettier): Ensure filepath is set in PrettierOptions (#10)

Author: JamesHenry

src/precise-formatters/prettier.ts

@@ -29,9 +29,12 @@ export const preciseFormatterPrettier: PreciseFormatter<PrettierOptions> = {
    * modified file path.
    */
   resolveConfig(modifiedFilePath: string): PrettierOptions | null {
-    return resolveConfig.sync(modifiedFilePath, {
-      useCache: false,
-    });
+    return {
+      ...resolveConfig.sync(modifiedFilePath, {
+        useCache: false,
+      }),
+      filepath: modifiedFilePath,
+    };
   },
   /**
    * Return true if the whole file has already been formatted appropriately based on

test/__snapshots__/git-utils.spec.ts.snap

@@ -1,5 +1,18 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`git-utils getDiffForFile() brand-new-json-file 1`] = `
+"diff --git a/brand-new-json-file.json b/brand-new-json-file.json
+new file mode 100644
+index 0000000..f663bcc
+--- /dev/null
++++ b/brand-new-json-file.json
+@@ -0,0 +1,3 @@
++{
++    \\"foo\\": true
++}
+\\\\ No newline at end of file"
+`;
+
 exports[`git-utils getDiffForFile() brand-new-jsx-file 1`] = `
 "diff --git a/brand-new-jsx-file.jsx b/brand-new-jsx-file.jsx
 new file mode 100644

test/__snapshots__/index.spec.ts.snap

@@ -1,5 +1,12 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`precise-commits main() brand-new-json-file 1`] = `
+"{
+  \\"foo\\": true
+}
+"
+`;
+
 exports[`precise-commits main() brand-new-jsx-file 1`] = `
 "function HelloWorld({
   greeting = 'hello',

test/__snapshots__/precise-formatter-prettier.spec.ts.snap

@@ -1,7 +1,17 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`preciseFormatterPrettier resolveConfig() brand-new-json-file 1`] = `
+Object {
+  "filepath": "./test/fixtures/brand-new-json-file/initial.json",
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "all",
+}
+`;
+
 exports[`preciseFormatterPrettier resolveConfig() brand-new-jsx-file 1`] = `
 Object {
+  "filepath": "./test/fixtures/brand-new-jsx-file/initial.jsx",
   "semi": true,
   "singleQuote": true,
   "trailingComma": "all",
@@ -10,6 +20,7 @@ Object {
 
 exports[`preciseFormatterPrettier resolveConfig() empty-javascript-file 1`] = `
 Object {
+  "filepath": "./test/fixtures/empty-javascript-file/initial.js",
   "semi": true,
   "singleQuote": true,
   "trailingComma": "all",
@@ -18,6 +29,7 @@ Object {
 
 exports[`preciseFormatterPrettier resolveConfig() formatting-would-affect-total-line-count 1`] = `
 Object {
+  "filepath": "./test/fixtures/formatting-would-affect-total-line-count/initial.js",
   "semi": true,
   "singleQuote": true,
   "trailingComma": "all",
@@ -26,6 +38,7 @@ Object {
 
 exports[`preciseFormatterPrettier resolveConfig() multiple-updated-lines-javascript-file 1`] = `
 Object {
+  "filepath": "./test/fixtures/multiple-updated-lines-javascript-file/initial.js",
   "semi": true,
   "singleQuote": false,
   "trailingComma": "none",
@@ -34,6 +47,7 @@ Object {
 
 exports[`preciseFormatterPrettier resolveConfig() single-updated-line-typescript 1`] = `
 Object {
+  "filepath": "./test/fixtures/single-updated-line-typescript/initial.ts",
   "parser": "typescript",
   "semi": true,
   "singleQuote": true,

test/__snapshots__/utils.spec.ts.snap

@@ -1,5 +1,14 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`utils calculateCharacterRangesFromLineChanges() brand-new-json-file 1`] = `
+Array [
+  Object {
+    "rangeEnd": 19,
+    "rangeStart": 0,
+  },
+]
+`;
+
 exports[`utils calculateCharacterRangesFromLineChanges() brand-new-jsx-file 1`] = `
 Array [
   Object {
@@ -53,6 +62,18 @@ Array [
 ]
 `;
 
+exports[`utils extractLineChangeData() brand-new-json-file 1`] = `
+Object {
+  "additions": Array [
+    Object {
+      "noOfLines": 3,
+      "start": 1,
+    },
+  ],
+  "removals": Array [],
+}
+`;
+
 exports[`utils extractLineChangeData() brand-new-jsx-file 1`] = `
 Object {
   "additions": Array [

test/fixtures/brand-new-json-file/staged.json

@@ -0,0 +1,3 @@
+{
+    "foo": true
+}