multisource-downloader

multisource-downloader

Download accelerator that supports fetching a file from multiple sources concurrently.

Prerequisites

• Docker
• Docker Compose
• Make

i.e., no need to have Go installed locally

Usage

Make targets

tidy dependencies

$ make deps

format all .go files in project

$ make fmt

run tests

$ make test

build executable binary

$ make build target={target OS}

• generates msdl inside bin/ directory
• possible values for target can be found here
• example: make build target=linux

CLI reference

Running msdl (after generating it using make build):

synopsis

msdl [flags...] [space-delimited URLs...]

example

$ ./msdl -f destfile.txt http://source1.com/a.txt http://source2.com/a.txt http://source3.com/a.txt

• downloads a.txt from 3 different sources concurrently and saves it to a local file named destfile.txt
• note: the filenames can be different in the sources as long as they are effectively the same file

available flags

-c, --connections uint   max number of concurrent connections [optional; default 5]
    --etag               check ETag match (using MD5 hash of downloaded file) if available [optional; default false]
-f, --file string        destination file path [required for download]
-h, --help               help for msdl
-q, --quiet              disable logging to stdout [optional; default false]
-t, --timeout uint       timeout for each connection in seconds [optional; default 10]