runtime(getscript): check for network errors
related: #17249
Co-authored-by: Philip H. <47042125+pheiduck@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/autoload/getscript.vim b/runtime/autoload/getscript.vim
index e599d1e..88d7a3a 100644
--- a/runtime/autoload/getscript.vim
+++ b/runtime/autoload/getscript.vim
@@ -13,6 +13,7 @@
" substitution of hardcoded commands with global variables
" 2024 Nov 12 by Vim Project: fix problems on Windows (#16036)
" 2025 Feb 28 by Vim Project: add support for bzip3 (#16755)
+" 2025 May 11 by Vim Project: check network connectivity (#17249)
" }}}
"
" GetLatestVimScripts: 642 1 :AutoInstall: getscript.vim
@@ -147,9 +148,6 @@
elseif exists('$HOME') && isdirectory(expand("$HOME")."/".s:dotvim)
let s:autoinstall= $HOME."/".s:dotvim
endif
-" call Decho("s:autoinstall<".s:autoinstall.">")
-"else "Decho
-" call Decho("g:GetLatestVimScripts_allowautoinstall=".g:GetLatestVimScripts_allowautoinstall.": :AutoInstall: disabled")
endif
" ---------------------------------------------------------------------
@@ -163,24 +161,19 @@
" scripts based on the list in
" (first dir in runtimepath)/GetLatest/GetLatestVimScripts.dat
fun! getscript#GetLatestVimScripts()
-" call Dfunc("GetLatestVimScripts() autoinstall<".s:autoinstall.">")
-" insure that wget is executable
if executable(g:GetLatestVimScripts_wget) != 1
echoerr "GetLatestVimScripts needs ".g:GetLatestVimScripts_wget." which apparently is not available on your system"
-" call Dret("GetLatestVimScripts : wget not executable/available")
return
endif
" Find the .../GetLatest subdirectory under the runtimepath
for datadir in split(&rtp,',') + ['']
if isdirectory(datadir."/GetLatest")
-" call Decho("found directory<".datadir.">")
let datadir= datadir . "/GetLatest"
break
endif
if filereadable(datadir."GetLatestVimScripts.dat")
-" call Decho("found ".datadir."/GetLatestVimScripts.dat")
break
endif
endfor
@@ -188,32 +181,25 @@
" Sanity checks: readability and writability
if datadir == ""
echoerr 'Missing "GetLatest/" on your runtimepath - see :help glvs-dist-install'
-" call Dret("GetLatestVimScripts : unable to find a GetLatest subdirectory")
return
endif
if filewritable(datadir) != 2
echoerr "(getLatestVimScripts) Your ".datadir." isn't writable"
-" call Dret("GetLatestVimScripts : non-writable directory<".datadir.">")
return
endif
let datafile= datadir."/GetLatestVimScripts.dat"
if !filereadable(datafile)
echoerr "Your data file<".datafile."> isn't readable"
-" call Dret("GetLatestVimScripts : non-readable datafile<".datafile.">")
return
endif
if !filewritable(datafile)
echoerr "Your data file<".datafile."> isn't writable"
-" call Dret("GetLatestVimScripts : non-writable datafile<".datafile.">")
return
endif
" --------------------
" Passed sanity checks
" --------------------
-" call Decho("datadir <".datadir.">")
-" call Decho("datafile <".datafile.">")
-
" don't let any event handlers interfere (like winmanager's, taglist's, etc)
let eikeep = &ei
let hlskeep = &hls
@@ -226,25 +212,20 @@
" 3. split window
" 4. edit datafile
let origdir= getcwd()
-" call Decho("exe cd ".fnameescape(substitute(datadir,'\','/','ge')))
exe "cd ".fnameescape(substitute(datadir,'\','/','ge'))
split
-" call Decho("exe e ".fnameescape(substitute(datafile,'\','/','ge')))
exe "e ".fnameescape(substitute(datafile,'\','/','ge'))
res 1000
let s:downloads = 0
let s:downerrors= 0
+ let s:message = []
" Check on dependencies mentioned in plugins
-" call Decho(" ")
-" call Decho("searching plugins for GetLatestVimScripts dependencies")
let lastline = line("$")
-" call Decho("lastline#".lastline)
let firstdir = substitute(&rtp,',.*$','','')
let plugins = split(globpath(firstdir,"plugin/**/*.vim"),'\n')
let plugins += split(globpath(firstdir,"ftplugin/**/*.vim"),'\n')
let plugins += split(globpath(firstdir,"AsNeeded/**/*.vim"),'\n')
-" extend the search to the packages too (this script predates the feature)
let plugins += split(globpath(firstdir,"pack/*/start/*/plugin/**/*.vim"),'\n')
let plugins += split(globpath(firstdir,"pack/*/opt/*/plugin/**/*.vim"),'\n')
let plugins += split(globpath(firstdir,"pack/*/start/*/ftplugin/**/*.vim"),'\n')
@@ -257,14 +238,10 @@
" It reads the plugin script at the end of the GetLatestVimScripts.dat
" file, examines it, and then removes it.
for plugin in plugins
-" call Decho(" ")
-" call Decho("plugin<".plugin.">")
" read plugin in
" evidently a :r creates a new buffer (the "#" buffer) that is subsequently unused -- bwiping it
$
-" call Decho(".dependency checking<".plugin."> line$=".line("$"))
-" call Decho("..exe silent r ".fnameescape(plugin))
exe "silent r ".fnameescape(plugin)
exe "silent bwipe ".bufnr("#")
@@ -272,7 +249,6 @@
let depscript = substitute(getline("."),'^"\s\+GetLatestVimScripts:\s\+\d\+\s\+\d\+\s\+\(.*\)$','\1','e')
let depscriptid = substitute(getline("."),'^"\s\+GetLatestVimScripts:\s\+\(\d\+\)\s\+.*$','\1','')
let llp1 = lastline+1
-" call Decho("..depscript<".depscript.">")
" found a "GetLatestVimScripts: # #" line in the script;
" check if it's already in the datafile by searching backwards from llp1,
@@ -286,21 +262,17 @@
" this second search is taken when, for example, a 0 0 scriptname is to be skipped over
let srchline= search('\<'.noai_script.'\>','bW')
endif
-" call Decho("..noai_script<".noai_script."> depscriptid#".depscriptid." srchline#".srchline." curline#".line(".")." lastline#".lastline)
if srchline == 0
" found a new script to permanently include in the datafile
let keep_rega = @a
let @a = substitute(getline(curline),'^"\s\+GetLatestVimScripts:\s\+','','')
echomsg "Appending <".@a."> to ".datafile." for ".depscript
-" call Decho("..Appending <".@a."> to ".datafile." for ".depscript)
exe lastline."put a"
let @a = keep_rega
let lastline = llp1
let curline = curline + 1
let foundscript = foundscript + 1
-" else " Decho
-" call Decho("..found <".noai_script."> (already in datafile at line#".srchline.")")
endif
let curline = curline + 1
@@ -309,12 +281,8 @@
" llp1: last line plus one
let llp1= lastline + 1
-" call Decho(".deleting lines: ".llp1.",$d")
exe "silent! ".llp1.",$d"
endfor
-" call Decho("--- end dependency checking loop --- foundscript=".foundscript)
-" call Decho(" ")
-" call Dredir("BUFFER TEST (GetLatestVimScripts 1)","ls!")
if foundscript == 0
setlocal nomod
@@ -323,32 +291,32 @@
" --------------------------------------------------------------------
" Check on out-of-date scripts using GetLatest/GetLatestVimScripts.dat
" --------------------------------------------------------------------
-" call Decho("begin: checking out-of-date scripts using datafile<".datafile.">")
setlocal lz
1
-" /^-----/,$g/^\s*\d/call Decho(getline("."))
- 1
/^-----/,$g/^\s*\d/call s:GetOneScript()
-" call Decho("--- end out-of-date checking --- ")
" Final report (an echomsg)
try
silent! ?^-------?
catch /^Vim\%((\a\+)\)\=:E114/
-" call Dret("GetLatestVimScripts : nothing done!")
return
endtry
exe "norm! kz\<CR>"
redraw!
+ if !empty(s:message)
+ echohl WarningMsg
+ for mess in s:message
+ echom mess
+ endfor
+ let s:downerrors += len(s:message)
+ endif
let s:msg = ""
if s:downloads == 1
let s:msg = "Downloaded one updated script to <".datadir.">"
- elseif s:downloads == 2
- let s:msg= "Downloaded two updated scripts to <".datadir.">"
elseif s:downloads > 1
let s:msg= "Downloaded ".s:downloads." updated scripts to <".datadir.">"
else
- let s:msg= "Everything was already current"
+ let s:msg= empty(s:message) ? "Everything was already current" : "There were some errors"
endif
if s:downerrors > 0
let s:msg= s:msg." (".s:downerrors." downloading errors)"
@@ -366,8 +334,6 @@
let &hls = hlskeep
let &acd = acdkeep
setlocal nolz
-" call Dredir("BUFFER TEST (GetLatestVimScripts 2)","ls!")
-" call Dret("GetLatestVimScripts : did ".s:downloads." downloads")
endfun
" ---------------------------------------------------------------------
@@ -376,8 +342,6 @@
" ScriptID, SourceID, and Filename.
" It downloads any scripts that have newer versions from vim.sourceforge.net.
fun! s:GetOneScript(...)
-" call Dfunc("GetOneScript()")
-
" set options to allow progress to be shown on screen
let rega= @a
let t_ti= &t_ti
@@ -403,13 +367,9 @@
let srcid = a:2
let fname = a:3
let cmmnt = ""
-" call Decho("scriptid<".scriptid.">")
-" call Decho("srcid <".srcid.">")
-" call Decho("fname <".fname.">")
else
let curline = getline(".")
if curline =~ '^\s*#'
-" call Dret("GetOneScript : skipping a pure comment line")
return
endif
let parsepat = '^\s*\(\d\+\)\s\+\(\d\+\)\s\+\(.\{-}\)\(\s*#.*\)\=$'
@@ -433,36 +393,26 @@
catch /^Vim\%((\a\+)\)\=:E486/
let cmmnt= ""
endtry
-" call Decho("curline <".curline.">")
-" call Decho("parsepat<".parsepat.">")
-" call Decho("scriptid<".scriptid.">")
-" call Decho("srcid <".srcid.">")
-" call Decho("fname <".fname.">")
endif
" plugin author protection from downloading his/her own scripts atop their latest work
+ " When looking for :AutoInstall: lines, skip scripts that have 0 0 scriptname
if scriptid == 0 || srcid == 0
- " When looking for :AutoInstall: lines, skip scripts that have 0 0 scriptname
-" call Dret("GetOneScript : skipping a scriptid==srcid==0 line")
return
endif
let doautoinstall= 0
if fname =~ ":AutoInstall:"
-" call Decho("case AutoInstall: fname<".fname.">")
let aicmmnt= substitute(fname,'\s\+:AutoInstall:\s\+',' ','')
-" call Decho("aicmmnt<".aicmmnt."> s:autoinstall=".s:autoinstall)
if s:autoinstall != ""
let doautoinstall = g:GetLatestVimScripts_allowautoinstall
endif
else
let aicmmnt= fname
endif
-" call Decho("aicmmnt<".aicmmnt.">: doautoinstall=".doautoinstall)
exe "norm z\<CR>"
redraw!
-" call Decho('considering <'.aicmmnt.'> scriptid='.scriptid.' srcid='.srcid)
echo 'considering <'.aicmmnt.'> scriptid='.scriptid.' srcid='.srcid
" grab a copy of the plugin's vim.sourceforge.net webpage
@@ -470,15 +420,17 @@
let tmpfile = tempname()
let v:errmsg = ""
+ " Check if URLs are reachable
+ if !CheckVimScriptURL(scriptid, srcid)
+ return
+ endif
+
" make up to three tries at downloading the description
let itry= 1
while itry <= 3
-" call Decho(".try#".itry." to download description of <".aicmmnt."> with addr=".scriptaddr)
if has("win32") || has("win16") || has("win95")
-" call Decho(".new|exe silent r!".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(tmpfile).' '.shellescape(scriptaddr)."|bw!")
new|exe "silent r!".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(tmpfile).' '.shellescape(scriptaddr)|bw!
else
-" call Decho(".exe silent !".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(tmpfile)." ".shellescape(scriptaddr))
exe "silent !".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(tmpfile)." ".shellescape(scriptaddr)
endif
if itry == 1
@@ -496,7 +448,6 @@
endif
let itry= itry + 1
endwhile
-" call Decho(" --- end downloading tries while loop --- itry=".itry)
" testing: did finding "Click on the package..." fail?
if findpkg == 0 || itry >= 4
@@ -507,12 +458,9 @@
let &t_te = t_te
let &rs = rs
let s:downerrors = s:downerrors + 1
-" call Decho("***warning*** couldn'".'t find "Click on the package..." in description page for <'.aicmmnt.">")
echomsg "***warning*** couldn'".'t find "Click on the package..." in description page for <'.aicmmnt.">"
-" call Dret("GetOneScript : srch for /Click on the package/ failed")
return
endif
-" call Decho('found "Click on the package to download"')
let findsrcid= search('src_id=','W')
if findsrcid == 0
@@ -523,28 +471,22 @@
let &t_te = t_te
let &rs = rs
let s:downerrors = s:downerrors + 1
-" call Decho("***warning*** couldn'".'t find "src_id=" in description page for <'.aicmmnt.">")
echomsg "***warning*** couldn'".'t find "src_id=" in description page for <'.aicmmnt.">"
-" call Dret("GetOneScript : srch for /src_id/ failed")
return
endif
-" call Decho('found "src_id=" in description page')
let srcidpat = '^\s*<td class.*src_id=\(\d\+\)">\([^<]\+\)<.*$'
let latestsrcid= substitute(getline("."),srcidpat,'\1','')
let sname = substitute(getline("."),srcidpat,'\2','') " script name actually downloaded
-" call Decho("srcidpat<".srcidpat."> latestsrcid<".latestsrcid."> sname<".sname.">")
silent q!
call delete(tmpfile)
" convert the strings-of-numbers into numbers
let srcid = srcid + 0
let latestsrcid = latestsrcid + 0
-" call Decho("srcid=".srcid." latestsrcid=".latestsrcid." sname<".sname.">")
" has the plugin's most-recent srcid increased, which indicates that it has been updated
if latestsrcid > srcid
-" call Decho("[latestsrcid=".latestsrcid."] <= [srcid=".srcid."]: need to update <".sname.">")
let s:downloads= s:downloads + 1
if sname == bufname("%")
@@ -555,20 +497,16 @@
" -----------------------------------------------------------------------------
" the plugin has been updated since we last obtained it, so download a new copy
" -----------------------------------------------------------------------------
-" call Decho(".downloading new <".sname.">")
echomsg ".downloading new <".sname.">"
if has("win32") || has("win16") || has("win95")
-" call Decho(".new|exe silent r!".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(sname)." ".shellescape(g:GetLatestVimScripts_downloadaddr.latestsrcid)."|bw!")
new|exe "silent r!".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(sname)." ".shellescape(g:GetLatestVimScripts_downloadaddr.latestsrcid)|bw!
else
-" call Decho(".exe silent !".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(sname)." ".shellescape(g:GetLatestVimScripts_downloadaddr.latestsrcid)
exe "silent !".g:GetLatestVimScripts_wget." ".g:GetLatestVimScripts_options." ".shellescape(sname)." ".shellescape(g:GetLatestVimScripts_downloadaddr.latestsrcid)
endif
" --------------------------------------------------------------------------
" AutoInstall: only if doautoinstall has been requested by the plugin itself
" --------------------------------------------------------------------------
-" call Decho("checking if plugin requested autoinstall: doautoinstall=".doautoinstall)
if doautoinstall
if filereadable(sname)
exe "silent !".g:GetLatestVimScripts_mv." ".shellescape(sname)." ".shellescape(s:autoinstall)
@@ -602,7 +540,6 @@
exe "sil !".g:GetLatestVimScripts_unxz." ".shellescape(sname)
let sname= substitute(sname,'\.xz$','','')
else
-" call Decho("no decompression needed")
endif
" distribute archive(.zip, .tar, .vba, .vmb, ...) contents
@@ -632,8 +569,6 @@
else
unlet g:vimball_home
endif
- else
-" call Decho("no dearchiving needed")
endif
" ---------------------------------------------
@@ -665,9 +600,59 @@
" update the data in the <GetLatestVimScripts.dat> file
call setline(line("."),modline)
endif
-
endfun
+" CheckVimScriptURL: Check Network Connection {{{1
+" Check status code of scriptaddr and downloadaddr
+" return v:true if the script is downloadable or v:false in case of errors
+fun CheckVimScriptURL(script_id, src_id)
+ if !executable('curl')
+ return v:true
+ endif
+ let output = has("win32") ? ' -o NUL ' : ' -o /dev/null '
+
+ " Handle PowerShell differently
+ if &shell =~? '\<pwsh\>\|\<powershell\>'
+ " For PowerShell, use direct command output
+ let script_url = g:GetLatestVimScripts_scriptaddr . a:script_id
+ let script_cmd = 'curl -s -I -w "%{http_code}"' . output . shellescape(script_url)
+ let script_status = system(script_cmd)
+ let script_status = substitute(script_status, '\n$', '', '')
+
+ let download_url = g:GetLatestVimScripts_downloadaddr . a:src_id
+ let download_cmd = 'curl -s -I -w "%{http_code}"' . output . shellescape(download_url)
+ let download_status = system(download_cmd)
+ let download_status = substitute(download_status, '\n$', '', '')
+ else
+ " For other shells, use temporary files
+ let temp_script = tempname()
+ let temp_download = tempname()
+
+ let script_url = g:GetLatestVimScripts_scriptaddr . a:script_id
+ let script_cmd = 'curl -s -I -w "%{http_code}"' . output . shellescape(script_url) . ' >' . shellescape(temp_script)
+ call system(script_cmd)
+ let script_status = readfile(temp_script, 'b')[0]
+ call delete(temp_script)
+
+ let download_url = g:GetLatestVimScripts_downloadaddr . a:src_id
+ let download_cmd = 'curl -s -I -w "%{http_code}"' . output . shellescape(download_url) . ' >' . shellescape(temp_download)
+ call system(download_cmd)
+ let download_status = readfile(temp_download, 'b')[0]
+ call delete(temp_download)
+ endif
+
+ if script_status !=# '200'
+ let s:message += [ printf('Error: Failed to reach script: %s', a:script_id) ]
+ return v:false
+ endif
+
+ if download_status !=# '200'
+ let s:message += [ printf('Error: Failed to download script %s', a:script_id) ]
+ return v:false
+ endif
+ return v:true
+endfunction
+
" ---------------------------------------------------------------------
" Restore Options: {{{1
let &cpo= s:keepcpo