+var log = require("npmlog")
+
+var deprecated = {}
+ , deprWarned = {}
+module.exports = function deprCheck (data) {
+ if (deprecated[data._id]) data.deprecated = deprecated[data._id]
+ if (data.deprecated) deprecated[data._id] = data.deprecated
+ else return
+ if (!deprWarned[data._id]) {
+ deprWarned[data._id] = true
+ log.warn("deprecated", "%s: %s", data._id, data.deprecated)
+ }
+}