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Merge pull request #3692 from mateon1/fix/dist-get

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Make bin/dist_get fall back to other downloaders if one fails
This commit is contained in:
Jeromy Johnson 2017-03-01 16:50:20 -08:00 committed by GitHub
commit ea8e0f5074
1 changed files with 26 additions and 13 deletions
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39
bin/dist_get
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@ -13,6 +13,26 @@ check_writeable() {
printf "" > "$1" && rm "$1"
}
try_download() {
url="$1"
output="$2"
command="$3"
util_name="$(set -- $command; echo "$1")"
if ! have_binary "$util_name"; then
return 1
fi
printf '==> Using %s to download "%s" to "%s"\n' "$util_name" "$url" "$output"
if eval "$command"; then
echo "==> Download complete!"
return
else
echo "error: couldn't download with $util_name ($?)"
return 1
fi
}
download() {
dl_url="$1"
dl_output="$2"
@ -23,19 +43,12 @@ download() {
die "download error: cannot write to $dl_output"
fi
if have_binary wget; then
printf '==> Using wget to download "%s" to "%s"\n' "$dl_url" "$dl_output"
wget "$dl_url" -O "$dl_output" || return
elif have_binary curl; then
printf '==> Using curl to download "%s" to "%s"\n' "$dl_url" "$dl_output"
curl --silent "$dl_url" > "$dl_output" || return
elif have_binary fetch; then
printf '==> Using fetch to download "%s" to "%s"\n' "$dl_url" "$dl_output"
fetch "$dl_url" -o "$dl_output" || return
else
die "no binary found to download $dl_url. exiting."
fi
echo "==> download complete!"
try_download "$dl_url" "$dl_output" "wget '$dl_url' -O '$dl_output'" && return
try_download "$dl_url" "$dl_output" "curl --silent '$dl_url' > '$dl_output'" && return
try_download "$dl_url" "$dl_output" "fetch '$dl_url' -o '$dl_output'" && return
try_download "$dl_url" "$dl_output" "http '$dl_url' > '$dl_output'" && return
die "Unable to download $dl_url. exiting."
}
unarchive() {