zsh/Completion/Unix/Command/_wget

#compdef wget

local curcontext="$curcontext" state line
typeset -A opt_args

_arguments -C -s \
  '(--version -V)'{--version,-V}'[display version info]' \
  '(--help -h)'{--help,-h}'[display help]' \
  '(--background -b)'{--background,-b}'[run in background]' \
  '(--execute -e)'{--execute=,-e+}'[execute .wgetrc command]:.wgetrc command' \
  '(--output-file -o --append-output -a)'{--output-file=,-o+}'[specify output logfile]:log file to output:_files' \
  '(--append-output -a --output-file -o)'{--append-output=,-a+}'[specify output logfile to append to]:log file to append:_files' \
  '(--debug -d)'{--debug,-d}'[turn on debug output]' \
  '(--quiet -q --verbose -v --non-verbose -nv)'{--quiet,-q}'[turn off output]' \
  '(--quiet -q --verbose -v --non-verbose -nv)'{--verbose,-v}'[turn on verbose output]' \
  '*-n+[turn off flags]:flags:->noflags' \
  '(--input-file -i)'{--input-file=,-i+}'[specify input file]:file containing URLs:_files' \
  '(--force-html -F)'{--force-html,-F}'[treat input file as html]' \
  '(--base -B)'{--base=,-B+}'[prepend URL to relative links]:base URL:_urls' \
  '--bind-address=:address to bind to (hostname or IP):_hosts' \
  '(--tries -t)'{--tries=,-t+}'[set number of retries]:number of retries' \
  '(--output-document -O)'{--output-document=,-O+}'[specify file to write documents to]:output file:_files' \
  '(--continue -c)'{--continue,-c}'[continue getting an existing file]'  \
  '--progress=[set progress gauge type]:gauge type:->gauge' \
  '(--timestamping -N)'{--timestamping,-N}'[retrieve only files newer than existing]' \
  '(--server-response -S)'{--server-response,-S}'[print server response]' \
  "--spider[don't download anything]" \
  '(--timeout -T)'{--timeout=,-T+}'[specify read timeout]:read timeout (seconds)' \
  '(--wait,-w)'{--wait=,-w+}'[specify wait between retrievals]:wait between retrievals (seconds)' \
  '(--random-wait)--waitretry=:wait between retries of a retrieval (seconds)' \
  '(--waitretry)--random-wait[wait from 0...2*WAIT secs between retrievals]' \
  '(--proxy -Y)'{--proxy=,-Y+}'[turn proxy on or off]:proxy use:(on off)' \
  '(--quota -Q)'{--quota=,-Q+}'[set retrieval quota]:number' \
  '--limit-rate=[specify limit to download rate]:download rate limit' \
  '(--force-directories -x)'{--force-directories,-x}'[force creation of directories]' \
  '(--directory-prefix -P)'{--directory-prefix=,-P+}'[specify prefix to save files to]:prefix:_files -/' \
  '--cut-dirs=:number:' \
  '--http-user=:user:' \
  '--http-passwd=:password:' \
  '(--html-extension -E)'{--html-extension,-E}'[save all text/html files with a .html extension]' \
  "--ignore-length[ignore \`Content-Length' header field]" \
  '--header=:string:' \
  '--proxy-user=:user:' \
  '--proxy-passwd=:password:' \
  '--referer=:url:_urls' \
  '(--save-headers -s)'{--save-headers,-s}'[save http headers]' \
  '(--user-agent -U)'{--user-agent=,-U+}'[specify user agent to identify as]:user-agent' \
  '--retr-symlinks' \
  '(--glob -g)'{--glob=,-g+}'[turn file globbing on or off]:glob:(on off)' \
  '--passive-ftp' \
  '(--recursive -r)'{--recursive,-r}'[recurse subdirectories]' \
  '(--level -l)'{--level=,-l+}'[specify maximum recursion depth]:level' \
  '--delete-after' \
  '(--convert-links -k)'{--convert-links,-k}'[convert links to be relative]' \
  '(--backup-converted -K)'{--backup-converted,-K}'[backup files before conversion]' \
  '(--mirror -m -r -N -l)'{--mirror,-m}'[mirror (-r -N -l inf -nr)]' \
  '(--page-requisites -p)'{--page-requisites,-p}'[get all images needed to display page]' \
  '(--accept -A)'{--accept=,-A+}'[specify accepted extensions]:extensions' \
  '(--reject -R)'{--reject=,-R+}'[specify rejected extensions]:extensions' \
  '(--domains -D)'{--domains=,-D+}'[specify accepted domains]:domains' \
  '--exclude-domains=:rejected domains:' \
  '--follow-ftp' \
  '--follow-tags=:HTML tags:' \
  '(--ignore-tags -G)'{--ignore-tags=,-G+}'[specify ignored HTML tags]:HTML tags' \
  '(--span-hosts -H)'{--span-hosts,-H}'[span hosts]' \
  '(--relative -L)'{--relative,-L}'[follow relative links only]' \
  '(--include-directories -I)'{--include-directories=,-I+}'[include directories]:allowed directories' \
  '(--exclude-directories -X)'{--exclude-directories=,-X+}'[exclude directories]:excluded directories' \
  '--no-host-lookup' \
  '--no-parent' \
  '--non-verbose' \
  '--no-clobber' \
  '--no-directories' \
  '--no-host-directories' \
  '--dont-remove-listing' \
  '(--cache -C)'{--cache=,-C+}'[(dis)allow server-cached data]:cache:(on off)' \
  '--htmlify=:htmlify:' \
  '--no:no:->noflags' \
  '--cookies=[turn cookies on or off]:cookies:(on off)' \
  '--load-cookies=[specify file to load cookies from]:cookie file:_files' \
  '--save-cookies=[specify file to save cookies to]:cookie file:_files' \
  '--no-http-keep-alive[disable HTTP keep-alive]' \
  '--sslcertfile=[specify client certificate]:client certificate file:_files' \
  '--sslcertkey=[specify keyfile for certificate]:keyfile:_files' \
  '--egd-file=[specify filename of EGD socket]' \
  '*:url:_urls' && return 0

case "$state" in
  gauge)
    _values -S : 'progress gauge type' \
      'dot:style:(default binary mega giga micro)' \
      'bar:force:(force)'
  ;;
  noflags)
    _values -s '' 'option' \
      'v[non verbose]' \
      'H[no host directories]' \
      'd[no directories]' \
      'c[no clobber]' \
      'r[don'\''t remove listing]' \
      'p[no parent]'
  ;;
esac