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Fix download agent search relying on throwing of Sys.which(). Update t #28157 #28682

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merged 6 commits into from
Sep 4, 2018
Merged

Fix download agent search relying on throwing of Sys.which(). Update t #28157 #28682

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5a4094c
Fix download agent search relying on throwing of Sys.which()
WillRam Aug 13, 2018
16898d7
change isempty to != nothing
WillRam Aug 17, 2018
058d348
change != to !==
WillRam Aug 17, 2018
0c53187
check file exists before deleting
WillRam Aug 20, 2018
3940b34
try to use curl before wget
WillRam Aug 20, 2018
85eec99
set rm to force and remove unused variable
WillRam Aug 21, 2018
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18 changes: 3 additions & 15 deletions base/download.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -25,28 +25,16 @@ if Sys.iswindows()
end
else
function download(url::AbstractString, filename::AbstractString)
global downloadcmd
if downloadcmd === nothing
for checkcmd in ("curl", "wget", "fetch")
try
# Sys.which() will throw() if it can't find `checkcmd`
Sys.which(checkcmd)
downloadcmd = checkcmd
break
catch
end
end
end
if downloadcmd == "wget"
if Sys.which("wget") !== nothing
try
run(`wget -O $filename $url`)
catch
rm(filename) # wget always creates a file
rethrow()
end
elseif downloadcmd == "curl"
elseif Sys.which("curl") !== nothing
run(`curl -g -L -f -o $filename $url`)
elseif downloadcmd == "fetch"
elseif Sys.which("fetch") !== nothing
run(`fetch -f $filename $url`)
else
error("no download agent available; install curl, wget, or fetch")
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