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boot-download

Clojars License: EPL-1.0

Boot task to download a file from the given url.

Tasks

(download-file [u url         VAL str "The location of the remote file."
                o output-file VAL str "The location used to save the file. Optional."])

Downloads a single file from the given url and adds it to the fileset as an asset.

If the output file path is not set then the task will get the file name from the url and store the file under that name in the fileset root directory.

Caution!

The task will fail if the output-file was not specified AND the url has parameters (i.e. http://example.org/file?p=foo&q=bar).

Functions

get-all-downloaded-files

(get-all-downloaded-files [fileset])

Gets a seq of files (as TmpFile objects) downloaded by the download-file task.

get-all-files-downloaded-from

(get-all-files-downloaded-from [fileset url])

Gets a seq of files (as TmpFile objects) downloaded from the given url by the download-file task.

It could happen that the fileset has a few files downloaded from the same url. That's why this function returns a seq instead of a single object (or nil). The sequence will be empty, if there is no files downloaded from the given url.

You can use this function to get TmpFile of the downloaded file, when you don't know its path, i.e. you didn't provide output-file option.

get-download-url

(get-download-url [tmpfile])

Gets a url the given TmpFile was downloaded from.

Usage

build.boot

(deftask download-electron
  []
  (let [root "https://github.com/electron/electron/releases/download"]
    (comp
     (download-file :url         (str root "/v1.7.4/electron-v1.7.4-linux-x64.zip")
                    :output-file "downloads/electron-v1.7.4-linux-x64.zip")
     (extract-from-zip :archive    "downloads/electron-v1.7.4-linux-x64.zip"
                       :output-dir "extracted/electron/v1.7.4/linux-x64")
     (target))))

Console

Download a file and save it in target directory:

boot download-file --url https://raw.githubusercontent.com/manenko/boot-download/master/README.rst --output-file downloads/doc/boot-download.rst target

License

Copyright © 2017 Oleksandr Manenko.

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.

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Boot task for downloading remote files via HTTP(S).

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