go-get-assets

go-get-assets

Download the google drive assets contained in a JSON file. Use Google Drive as your CMS.

Installation

go get github.com/techjacker/go-get-assets

Usage

CLI

$ go-get-assets <input-json> <download-dir>

CLI Options

$ go-get-assets -r <rewrite-urls-stem> -o <output-JSON-path> -n <needle> <input-json> <download-dir>

stem to replace downloaded URLs in rewritten JSON file

-r <rewrite-urls-stem>

path to write rewritten JSON file

-o <output-JSON-path>

needle to use to look for download URLs (defaults to Google drive stem)

-n <needle>

show help

$ go-get-assets -h

Examples

Example 1

Just downloads the assets from Google Drive.

$ go-get-assets $PWD/cms.json $PWD/images

Example 2

Downloads the assets from Google Drive and saves new JSON file with paths to assets rewritten.

$ go-get-assets -r /images -o $PWD/cms.output.json $PWD/cms.json $PWD/images

BEFORE

$ cat cms.json
{
    "clients": [{
        "name": "Samsung",
        "photourl": "https://drive.google.com/file/d/city.jpg"
    }],
    "photourl": "https://drive.google.com/file/d/freedom.jpg, https://drive.google.com/file/d/traffic.jpg"
}

AFTER

$ ls -l images
 images/city.jpg
 images/freedom.jpg
 images/traffic.jpg

$ cat cms.output.json
{
    "clients": [{
        "name": "Samsung",
        "photourl": "/images/city.jpg"
    }],
    "photourl": "/images/freedom.jpg, /images/traffic.jpg"
}

How it works

Downloads public files from gdrive by constructing URLs based on the following logic.

Copy a google drive share link of a public file, eg: https://drive.google.com/file/d/<ID> Eg: https://drive.google.com/file/d/0ByPfUp1fLihSNm5SSjZoalhPQ3M/view?usp=sharing

Extract the ID to construct the download URL. https://googledrive.com/host/<ID> Eg: https://googledrive.com/host/0ByPfUp1fLihSNm5SSjZoalhPQ3M

WGET or similar the file. Make sure you enable following redirects.

The downloaded file is named after the ID, eg: /path/to/file/0ByPfUp1fLihSNm5SSjZoalhPQ3M