update

package/node_modules/@npmcli/config/lib/umask.js

@@ -0,0 +1,35 @@
+const parse = val => {
+  // this is run via nopt and parse field where everything is
+  // converted to a string first, ignoring coverage for now
+  // instead of figuring out what is happening under the hood in nopt
+  // istanbul ignore else
+  if (typeof val === 'string') {
+    if (/^0o?[0-7]+$/.test(val)) {
+      return parseInt(val.replace(/^0o?/, ''), 8)
+    } else if (/^[1-9][0-9]*$/.test(val)) {
+      return parseInt(val, 10)
+    } else {
+      throw new Error(`invalid umask value: ${val}`)
+    }
+  } else {
+    if (typeof val !== 'number') {
+      throw new Error(`invalid umask value: ${val}`)
+    }
+    val = Math.floor(val)
+    if (val < 0 || val > 511) {
+      throw new Error(`invalid umask value: ${val}`)
+    }
+    return val
+  }
+}
+
+const validate = (data, k, val) => {
+  try {
+    data[k] = parse(val)
+    return true
+  } catch (er) {
+    return false
+  }
+}
+
+module.exports = { parse, validate }