babashka/examples/outdated.clj

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2019-12-13 19:59:09 +00:00
#!/usr/bin/env bb
(require '[clojure.edn :as edn])
(require '[clojure.java.shell :refer [sh]])
(require '[clojure.string :as str])
(def deps (-> (slurp (or (first *command-line-args*)
"deps.edn"))
edn/read-string
:deps))
(def with-release (zipmap (keys deps)
(map #(assoc % :mvn/version "RELEASE")
(vals deps))))
(defn deps->versions [deps]
(let [res (sh "clojure" "-Sdeps" (str {:deps deps}) "-Stree")
tree (:out res)
lines (str/split tree #"\n")
top-level (remove #(str/starts-with? % " ") lines)
deps (map #(str/split % #" ") top-level)]
(reduce (fn [acc [dep version]]
(assoc acc dep version))
{}
deps)))
(def version-map (deps->versions deps))
(def new-version-map (deps->versions with-release))
(doseq [[dep version] version-map
:let [new-version (get new-version-map dep)]
:when (not= version new-version)]
(println dep "can be upgraded from" version "to" new-version))
;; Inspired by an idea from @seancorfield on Clojurians Slack