efdl

efdl, pronounced "Eff-dell", is an efficient downloading command-line application that currently supports transfers using HTTP(S).

It is also possible to use the functionality of efdl in your own program. Just link the libefdlcore static library and use the headers in the include directory.

Requirements

A C++11 compliant compiler (GCC 4.8+, Clang 3.3+ etc.), CMake 2.8.12+, and Qt 5.2+.

Compilation and installation

To compile the source code and link the binaries do the following:

1. Extract source and go into the diretory.
2. mkdir build
3. cd build
4. cmake .. (If you want the shared library then use -DLIBRARY_TYPE=SHARED)
5. make

This produces the efdl binary in the bin directory.

Notice the install prefix when running cmake before, which defaults to /usr/local. If you run sudo make install it will install into the bin directory there. Uninstalling is accomplished with sudo make uninstall.

Program usage

Usage: efdl [options] URLs..
Efficient downloading application.

If URLs are given through STDIN then the positional argument(s) are optional.
Also note that piping URLs will make confirmations default to 'no', if any.

HTTP basic authorization is supported either via --http-user and --http-pass
or by using URLs on the form 'scheme://username:password@host.tld/path/'.

Options:
  -h, --help               Displays this help.
  -v, --version            Displays version information.
  -o, --output <dir>       Where to save file. (defaults to current directory)
  -c, --conns <num>        Number of simultaneous connections to use. (defaults
                           to 1)
  -r, --resume             Resume download if file is present locally and the
                           server supports it.
  --confirm                Will ask to confirm to download on redirections or
                           whether to truncate a completed file when resuming.
  --verbose                Verbose mode.
  --dry-run                Do not download anything just resolve URLs and stop.
  --chunks <num>           Number of chunks to split the download up into.
                           Cannot be used with --chunk-size.
  --chunk-size <bytes>     Size of each chunk which dictates how many to use.
                           Cannot be used with --chunks.
  --http-user <user>       Username for HTTP basic authorization.
  --http-pass <pass>       Password for HTTP basic authorization.
  --show-conn-progress     Shows progress information for each connection.
  --show-http-headers      Shows all HTTP headers. Implies --verbose.
  --verify <fmt=hash, ..>  Verify the integrity of the downloaded file(s) using
                           the given hash function and value. Hash functions
                           supported: md4, md5, sha1, sha2-224, sha2-256,
                           sha2-384, sha2-512, sha3-224, sha3-256, sha3-384,
                           sha3-512
  --gen-checksum <fmt>     Generate a checksum of the downloaded file using the
                           given hash function. See --verify for supported hash
                           functions.

Arguments:
  URLs                  URLs to download.