lotus/build/proof-params/paramfetch.sh.template
2019-09-26 12:13:43 -07:00

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#!/usr/bin/env bash
set -euo pipefail
PARAMS='{{PARAMSJSON}}'
die() {
echo "$@" >&2
exit 1
}
have_binary() {
type "$1" > /dev/null 2> /dev/null
}
check_writable() {
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="$2"
test "$#" -eq "2" || die "download requires exactly two arguments, was given $@"
if ! check_writable "$dl_output"; then
die "download error: cannot write to $dl_output"
fi
try_download "$dl_url" "$dl_output" "wget '$dl_url' -O '$dl_output'" && return
try_download "$dl_url" "$dl_output" "curl --silent --fail --output '$dl_output' '$dl_url'" && return
try_download "$dl_url" "$dl_output" "fetch '$dl_url' -o '$dl_output'" && return
try_download "$dl_url" "$dl_output" "http '$dl_url' > '$dl_output'" && return
try_download "$dl_url" "$dl_output" "ftp -o '$dl_output' '$dl_url'" && return
die "Unable to download $dl_url. exiting."
}
fetch_ipget() {
local dest="$1"
local cid="$2"
IPGET_PARAMS="--node=spawn -p=/ip4/138.201.67.219/tcp/4002/ws/ipfs/QmUd6zHcbkbcs7SMxwLs48qZVX3vpcM8errYS7xEczwRMA -p=/ip4/138.201.67.218/tcp/4002/ws/ipfs/QmbVWZQhCGrS7DhgLqWbgvdmKN7JueKCREVanfnVpgyq8x -p=/ip4/94.130.135.167/tcp/4002/ws/ipfs/QmUEMvxS2e7iDrereVYc5SWPauXPyNwxcy9BXZrC1QTcHE -p=/ip4/138.201.68.74/tcp/4001/ipfs/QmdnXwLrC8p1ueiq2Qya8joNvk3TVVDAut7PrikmZwubtR -p=/ip4/138.201.67.220/tcp/4001/ipfs/QmNSYxZAiJHeLdkBg38roksAR9So7Y5eojks1yjEcUtZ7i"
./bin/ipget $IPGET_PARAMS -o "$dest" "$cid"
}
fetch_gateway() {
local dest="$1"
local cid="$2"
local url="http://198.211.99.118/ipfs/$cid"
download "$url" "$dest"
}
OUT_DIR="/var/tmp/filecoin-proof-parameters"
mkdir -p $OUT_DIR
printf $PARAMS | base64 -d | jq '. | to_entries | map("'$OUT_DIR'/\(.key) \(.value.cid) \(.value.digest)") | .[]' --raw-output | \
while read -r dest cid digest; do
if [[ -f "$dest" ]]; then
b2=$(b2sum "$dest" | head -c 32)
if [[ "$digest" == "$b2" ]]; then
echo "$dest exists and has correct hash"
continue
else
echo "$dest has incorrect hash"
rm -f "$dest"
fi
fi
echo "downloading $dest"
fetch_gateway "$dest" "$cid"
done