forked from aniani/vim
f38c86eb6b
Problem: Dead URLs in the help go unnoticed. Solution: Add a script to check URLs in the help files. (Christian Brabandt)
69 lines
1.9 KiB
VimL
69 lines
1.9 KiB
VimL
" Test for URLs in help documents.
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"
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" Opens a new window with all found URLS followed by return code from curl
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" (anything other than 0 means unreachable)
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"
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" Written by Christian Brabandt.
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func Test_check_URLs()
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if has("win32")
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echoerr "Doesn't work on MS-Windows"
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return
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endif
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if executable('curl')
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" Note: does not follow redirects!
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let s:command = 'curl --silent --fail --output /dev/null --head '
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elseif executable('wget')
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" Note: only allow a couple of redirects
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let s:command = 'wget --quiet -S --spider --max-redirect=2 --timeout=5 --tries=2 -O /dev/null '
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else
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echoerr 'Only works when "curl" or "wget" is available'
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return
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endif
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let pat='\(https\?\|ftp\)://[^\t* ]\+'
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exe 'helpgrep' pat
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helpclose
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let urls = map(getqflist(), 'v:val.text')
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" do not use submatch(1)!
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let urls = map(urls, {key, val -> matchstr(val, pat)})
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" remove examples like user@host (invalid urls)
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let urls = filter(urls, 'v:val !~ "@"')
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" Remove example URLs which are invalid
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let urls = filter(urls, {key, val -> val !~ '\<\(\(my\|some\)\?host\|machine\|hostname\|file\)\>'})
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new
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put =urls
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" remove some more invalid items
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" empty lines
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v/./d
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" remove # anchors
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%s/#.*$//e
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" remove trailing stuff (parenthesis, dot, comma, quotes), but only for HTTP
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" links
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g/^h/s#[.,)'"/>][:.]\?$##
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g#^[hf]t\?tp:/\(/\?\.*\)$#d
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silent! g/ftp://,$/d
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silent! g/=$/d
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let a = getline(1,'$')
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let a = uniq(sort(a))
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%d
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call setline(1, a)
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" Do the testing.
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set nomore
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%s/.*/\=TestURL(submatch(0))/
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" highlight the failures
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/.* \([0-9]*[1-9]\|[0-9]\{2,}\)$
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endfunc
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func TestURL(url)
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" Relies on the return code to determine whether a page is valid
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echom printf("Testing URL: %d/%d %s", line('.'), line('$'), a:url)
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call system(s:command . shellescape(a:url))
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return printf("%s %d", a:url, v:shell_error)
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endfunc
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call Test_check_URLs()
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