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repl: Don't accumulate excess indentation in .load #49461

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merged 1 commit into from
Sep 21, 2023
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repl: Don't accumulate excess indentation in .load #49461

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repl: don't accumulate excess indentation in .load 
When using .load the REPL would accumulate indentation with each line
including the indentation from all previous lines. Now it keeps the
indentation at the correct level.

Fixes: #47673
  • Loading branch information
@STRd6
STRd6 committed Sep 7, 2023
commit 3385323b7b898446263b1dd2a3dc19fe0b4dca28
5 changes: 4 additions & 1 deletion lib/repl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,7 @@ const domainSet = new SafeWeakSet();

const kBufferedCommandSymbol = Symbol('bufferedCommand');
const kContextId = Symbol('contextId');
const kLoadingSymbol = Symbol('loading');

let addedNewListener = false;

Expand Down Expand Up @@ -882,7 +883,7 @@ function REPLServer(prompt,
self[kBufferedCommandSymbol] += cmd + '\n';

// code alignment
const matches = self._sawKeyPress ?
const matches = self._sawKeyPress && !self[kLoadingSymbol] ?
RegExpPrototypeExec(/^\s+/, cmd) : null;
if (matches) {
const prefix = matches[0];
Expand Down Expand Up @@ -1801,8 +1802,10 @@ function defineDefaultCommands(repl) {
const stats = fs.statSync(file);
if (stats && stats.isFile()) {
_turnOnEditorMode(this);
this[kLoadingSymbol] = true;
const data = fs.readFileSync(file, 'utf8');
this.write(data);
this[kLoadingSymbol] = false;
_turnOffEditorMode(this);
this.write('\n');
} else {
Expand Down
5 changes: 5 additions & 0 deletions test/parallel/test-repl-save-load.js
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Original file line number Diff line number Diff line change
Expand Up @@ -67,9 +67,14 @@ testMe.complete('inner.o', common.mustSucceed((data) => {
// Clear the REPL.
putIn.run(['.clear']);

testMe._sawKeyPress = true;
// Load the file back in.
putIn.run([`.load ${saveFileName}`]);

// Make sure loading doesn't insert extra indentation
// https://github.com/nodejs/node/issues/47673
assert.strictEqual(testMe.line, '');

// Make sure that the REPL data is "correct".
testMe.complete('inner.o', common.mustSucceed((data) => {
assert.deepStrictEqual(data, works);
Expand Down