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module: hide internal stack when emitCircularRequireWarning #32991

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module: hide internal stack when emitCircularRequireWarning #32991

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603e126
module: hide internal stack when onWarning
himself65 Apr 22, 2020
92cdf77
fixup!
himself65 Apr 22, 2020
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27 changes: 21 additions & 6 deletions lib/internal/process/warning.js
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,17 @@ function doEmitWarning(warning) {
return () => process.emit('warning', warning);
}

function hideInternalStacks(stacks) {
const newStack = [];
for (const stack of stacks.split('\n')) {
if (/\(internal\/.+\)$/.test(stack)) {
continue;
}
newStack.push(stack);
}
return newStack.join('\n');
}

let traceWarningHelperShown = false;
function onWarning(warning) {
if (!(warning instanceof Error)) return;
Expand All @@ -79,12 +90,16 @@ function onWarning(warning) {
if (typeof warning.detail === 'string') {
msg += `\n${warning.detail}`;
}
if (!trace && !traceWarningHelperShown) {
const flag = isDeprecation ? '--trace-deprecation' : '--trace-warnings';
const argv0 = require('path').basename(process.argv0 || 'node', '.exe');
msg += `\n(Use \`${argv0} ${flag} ...\` to show where the warning ` +
'was created)';
traceWarningHelperShown = true;
if (!traceWarningHelperShown) {
if (!trace) {
const flag = isDeprecation ? '--trace-deprecation' : '--trace-warnings';
const argv0 = require('path').basename(process.argv0 || 'node', '.exe');
msg += `\n(Use \`${argv0} ${flag} ...\` to show where the warning ` +
'was created)';
traceWarningHelperShown = true;
} else {
msg = hideInternalStacks(msg);
}
}
const warningFile = lazyOption();
if (warningFile) {
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