Blazer - Concurrent file downloader
- Control thread count
- Resume from interruption
- File integrity check - SHA256
Usage
blazer -url=example.com/1.pdf -t=10
Flags
blazer -h
Usage of blazer:
-checksum string
checksum SHA256(currently supported) to verify file
-out string
output path to store the downloaded file
-t int
Thread count - Number of concurrent downloads (default 10)
-url string
Valid URL to download
-v prints current version of blazer
Benchmarks
| Name | Size | Blazer | cURL | Wget |
|---|---|---|---|---|
| Debian ISO | 300 MB | 1min 10 sec (25 threads) | 2min 40 sec | 3 min 10 sec |
| Windows-10 | 5.4 GB | 20min 52sec (25 threads) | 46min 52 sec | 40 min 25 sec |
How file resumption work ?
If download is either interrupted manually or network error (Timeout, RCP - happens if "-t" is a large number than server can handle) then those segments may fail and you may have to restart the download with same URL and thread count for retry to work because, temp folder name is a hash of URL and thread count.
Demo
Install
- Download 64bit binary from releases: https://github.com/arvyshka/blazer/releases
or
- Build from source:
git clone [email protected]:arvyshka/blazer.git
make package
