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backend/node_modules/pino-pretty/lib/utils/handle-custom-levels-opts.js

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+'use strict'
+
+module.exports = handleCustomLevelsOpts
+
+/**
+ * Parse a CSV string or options object that specifies
+ * configuration for custom levels.
+ *
+ * @param {string|object} cLevels An object mapping level
+ * names to values, e.g. `{ info: 30, debug: 65 }`, or a
+ * CSV string in the format `level_name:level_value`, e.g.
+ * `info:30,debug:65`.
+ *
+ * @returns {object} An object mapping levels to labels that
+ * appear in logs, e.g. `{ '30': 'INFO', '65': 'DEBUG' }`.
+ */
+function handleCustomLevelsOpts (cLevels) {
+  if (!cLevels) return {}
+
+  if (typeof cLevels === 'string') {
+    return cLevels
+      .split(',')
+      .reduce((agg, value, idx) => {
+        const [levelName, levelNum = idx] = value.split(':')
+        agg[levelNum] = levelName.toUpperCase()
+        return agg
+      },
+      { default: 'USERLVL' })
+  } else if (Object.prototype.toString.call(cLevels) === '[object Object]') {
+    return Object
+      .keys(cLevels)
+      .reduce((agg, levelName) => {
+        agg[cLevels[levelName]] = levelName.toUpperCase()
+        return agg
+      }, { default: 'USERLVL' })
+  } else {
+    return {}
+  }
+}