print: remove indentation inside of block strings (#2932)

Author: IvanGoncharov

src/language/__tests__/blockString-fuzz.js

@@ -48,15 +48,13 @@ describe('printBlockString', () => {
       );
 
       const printedMultilineString = lexValue(
-        printBlockString(testValue, ' ', true),
+        printBlockString(testValue, true),
       );
 
       invariant(
         testValue === printedMultilineString,
         dedent`
-          Expected lexValue(printBlockString(${inspectStr(
-            testValue,
-          )}, ' ', true))
+          Expected lexValue(printBlockString(${inspectStr(testValue)}, true))
             to equal ${inspectStr(testValue)}
             but got  ${inspectStr(printedMultilineString)}
         `,

src/language/__tests__/blockString-test.js

@@ -134,13 +134,13 @@ describe('printBlockString', () => {
   it('by default print block strings as single line', () => {
     const str = 'one liner';
     expect(printBlockString(str)).to.equal('"""one liner"""');
-    expect(printBlockString(str, '', true)).to.equal('"""\none liner\n"""');
+    expect(printBlockString(str, true)).to.equal('"""\none liner\n"""');
   });
 
   it('correctly prints single-line with leading space', () => {
     const str = '    space-led string';
     expect(printBlockString(str)).to.equal('"""    space-led string"""');
-    expect(printBlockString(str, '', true)).to.equal(
+    expect(printBlockString(str, true)).to.equal(
       '"""    space-led string\n"""',
     );
   });
@@ -152,7 +152,7 @@ describe('printBlockString', () => {
       '"""    space-led value "quoted string"\n"""',
     );
 
-    expect(printBlockString(str, '', true)).to.equal(
+    expect(printBlockString(str, true)).to.equal(
       '"""    space-led value "quoted string"\n"""',
     );
   });
@@ -161,7 +161,7 @@ describe('printBlockString', () => {
     const str = 'backslash \\';
 
     expect(printBlockString(str)).to.equal('"""\nbackslash \\\n"""');
-    expect(printBlockString(str, '', true)).to.equal('"""\nbackslash \\\n"""');
+    expect(printBlockString(str, true)).to.equal('"""\nbackslash \\\n"""');
   });
 
   it('correctly prints string with a first line indentation', () => {

src/language/__tests__/printer-test.js

@@ -198,7 +198,7 @@ describe('Printer: Query document', () => {
           size: $size
           bar: $b
           obj: {key: "value", block: """
-            block string uses \"""
+          block string uses \"""
           """}
         )
       }

src/language/blockString.js

@@ -93,7 +93,6 @@ export function getBlockStringIndentation(value: string): number {
  */
 export function printBlockString(
   value: string,
-  indentation: string = '',
   preferMultipleLines: boolean = false,
 ): string {
   const isSingleLine = value.indexOf('\n') === -1;
@@ -109,9 +108,9 @@ export function printBlockString(
   let result = '';
   // Format a multi-line block quote to account for leading space.
   if (printAsMultipleLines && !(isSingleLine && hasLeadingSpace)) {
-    result += '\n' + indentation;
+    result += '\n';
   }
-  result += indentation ? value.replace(/\n/g, '\n' + indentation) : value;
+  result += value;
   if (printAsMultipleLines) {
     result += '\n';
   }

src/language/printer.js

@@ -84,10 +84,8 @@ const printDocASTReducer: any = {
 
   IntValue: ({ value }) => value,
   FloatValue: ({ value }) => value,
-  StringValue: ({ value, block: isBlockString }, key) =>
-    isBlockString
-      ? printBlockString(value, key === 'description' ? '' : '  ')
-      : JSON.stringify(value),
+  StringValue: ({ value, block: isBlockString }) =>
+    isBlockString ? printBlockString(value) : JSON.stringify(value),
   BooleanValue: ({ value }) => (value ? 'true' : 'false'),
   NullValue: () => 'null',
   EnumValue: ({ value }) => value,

src/utilities/printSchema.js

@@ -314,7 +314,7 @@ function printDescription(
   }
 
   const preferMultipleLines = description.length > 70;
-  const blockString = printBlockString(description, '', preferMultipleLines);
+  const blockString = printBlockString(description, preferMultipleLines);
   const prefix =
     indentation && !firstInBlock ? '\n' + indentation : indentation;