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41 lines
1.1 KiB
Clojure
41 lines
1.1 KiB
Clojure
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#!/usr/bin/env bb
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(require '[babashka.curl :as curl]
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'[babashka.fs :as fs])
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(defn download-if-needed!
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[dest data]
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(doseq [{:keys [id file-uri] :as item} data]
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(let [file (fs/file dest id)
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rsp (curl/get file-uri {:as :stream})]
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(when (not= 200 (:status rsp))
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(println (format "unable to download %s (uri: %s)" id file-uri))
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(System/exit -1))
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(when-not (fs/exists? (str file))
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(println (format "=> downloading %s" id))
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(with-open [output (io/output-stream file)]
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(io/copy (:body rsp) output))))))
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(defn read-defs-file
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[path]
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(with-open [content (io/reader path)]
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(edn/read-string (slurp content))))
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(let [[path dest] *command-line-args*]
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(when (or (nil? path)
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(nil? dest))
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(println "invalid arguments")
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(System/exit -1))
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(when-not (fs/exists? path)
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(println (format "file %s does not exists" path))
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(System/exit -1))
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(when-not (fs/exists? dest)
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(fs/create-dirs dest))
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(let [data (read-defs-file path)]
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(download-if-needed! dest data)))
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