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website/node_modules/npm/lib/install/realize-shrinkwrap-specifier.js

@@ -0,0 +1,22 @@
+'use strict'
+var npa = require('npm-package-arg')
+const isRegistry = require('../utils/is-registry.js')
+
+module.exports = function (name, sw, where) {
+  try {
+    if (sw.version && sw.integrity) {
+      return npa.resolve(name, sw.version, where)
+    } else if (sw.from) {
+      const spec = npa(sw.from, where)
+      if (isRegistry(spec) && sw.version) {
+        return npa.resolve(name, sw.version, where)
+      } else if (!sw.resolved) {
+        return spec
+      }
+    }
+    if (sw.resolved) {
+      return npa.resolve(name, sw.resolved, where)
+    }
+  } catch (_) { }
+  return npa.resolve(name, sw.version, where)
+}