hack のためのネタ帳, etc,,,


ふとしたことから、Ubuntu 20.04.1 LTS で apt-cache search wget したら以下のようなものを見つけた。
$ apt-cache search wget
wget2 - file and recursive website downloader
wget2-dev - development file for libwget2
$ apt-cache show wget2
Package: wget2
Architecture: amd64
Version: 1.99.1-2.1
Priority: optional
Section: universe/web
Origin: Ubuntu
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: No&#235;l K&#246;the <noel@debian.org>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 241
Depends: libc6 (>= 2.27), libgpgme11 (>= 1.2.0), libpcre2-8-0 (>= 10.22), libwget0
Recommends: ca-certificates
Filename: pool/universe/w/wget2/wget2_1.99.1-2.1_amd64.deb
Size: 95928
MD5sum: a659cffdfb614bdf3611d5b54a765cc3
SHA1: 4b3cb74f13450bf9855c9995796ca929ff34fa30
SHA256: 03cc5450e095f703bd9d7ffc56957607b1335029b0bfdd59e1fb40b362cd0688
Homepage: https://gitlab.com/gnuwget/wget2
Description-en: file and recursive website downloader
 GNU Wget is a network utility to retrieve files from the web
 using HTTP(S) and FTP, the two most widely used internet
 protocols. It works non-interactively, so it will work in
 the background, after having logged off. The program supports
 recursive retrieval of web-authoring pages as well as FTP
 sites -- you can use Wget to make mirrors of archives and
 home pages or to travel the web like a WWW robot.
 Wget works particularly well with slow or unstable connections
 by continuing to retrieve a document until the document is fully
 downloaded. Re-getting files from where it left off works on
 servers (both HTTP and FTP) that support it. Both HTTP and FTP
 retrievals can be time stamped, so Wget can see if the remote
 file has changed since the last retrieval and automatically
 retrieve the new version if it has.
 Wget supports proxy servers; this can lighten the network load,
 speed up retrieval, and provide access behind firewalls.
 GNU Wget2 is the successor of GNU Wget.
Description-md5: 645e0d0ba9e191f2d558315b17fd49ef

libwget を用いて一から書き直された wget の発展版で、HTTP2 他、最近の機能にも対応してるらしい。
Savannah や GitLab だと同じ project の下に生えてるので、一応 wget の正式な発展版の模様。
GNU の downlaod server 見ると初版リリースは wget2 1.99.2 で timestamp は 2019-08-30 09:17 だった。
現時点では Cygwin には未収録のようだ。