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match tsc's behaviour when printing diagnostics context #9

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match tsc's behaviour when printing diagnostics context #9

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12 changes: 10 additions & 2 deletions src/tsc-bulk.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,14 @@ export function findDiagnosticsScopeId(d: DiagnosticTsc, isStrictScope: boolean)
return `.${results.join('.')}`;
}

// if stdout is being piped to another destination, print diagnostics
// without pretty colours. This matches the behaviour of TSC:
// https://github.com/microsoft/TypeScript/blob/0652664e/src/compiler/executeCommandLine.ts#L161
const formatDiagnostics =
process.env.NO_COLOR || !process.stdout.isTTY
? ts.formatDiagnostics
: ts.formatDiagnosticsWithColorAndContext;

export function assertDiagnostics(
configRelatedErrors: readonly DiagnosticTsc[],
projectErrors: readonly DiagnosticTsc[],
Expand All @@ -133,7 +141,7 @@ export function assertDiagnostics(
return 0;
}
if (!bulkConfig) {
log.info(ts.formatDiagnosticsWithColorAndContext(diagnostics, host));
log.info(formatDiagnostics(diagnostics, host));
return diagnostics.length;
}

Expand Down Expand Up @@ -185,7 +193,7 @@ export function assertDiagnostics(
else projectStat.externalErrors.push(dStat);
});

const formattedLog = ts.formatDiagnosticsWithColorAndContext(diagnosticsToShow, host);
const formattedLog = formatDiagnostics(diagnosticsToShow, host);

projectStat.raw = formattedLog;

Expand Down