29 lines
912 B
TypeScript
29 lines
912 B
TypeScript
export function isLogLineJSON(line: string): boolean {
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let parsed;
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try {
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parsed = JSON.parse(line);
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} catch (error) {}
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// The JSON parser should only be used for log lines that are valid serialized JSON objects.
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return typeof parsed === 'object';
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}
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// This matches:
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// first a label from start of the string or first white space, then any word chars until "="
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// second either an empty quotes, or anything that starts with quote and ends with unescaped quote,
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// or any non whitespace chars that do not start with quote
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const LOGFMT_REGEXP = /(?:^|\s)([\w\(\)\[\]\{\}]+)=(""|(?:".*?[^\\]"|[^"\s]\S*))/;
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export function isLogLineLogfmt(line: string): boolean {
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return LOGFMT_REGEXP.test(line);
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}
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export function isLogLinePacked(line: string): boolean {
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let parsed;
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try {
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parsed = JSON.parse(line);
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return parsed.hasOwnProperty('_entry');
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} catch (error) {
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return false;
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}
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}
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