arch-pkgs/.repo/pkgver/oil.sh

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2022-01-01 21:53:38 +00:00
#!/bin/bash
set -e
# check dependencies
count=0
for dependency in curl hxnormalize hxselect grep sed; do
if [ ! -x "$(command -v $dependency)" ]; then
echo "$dependency missing"
count=$((count+1))
fi
done
# exit script if any dependencies missing
if [ $count -ne 0 ]; then
exit 1
fi
# upstream URL
UPSTREAM_URL="https://www.oilshell.org/release/latest/"
# options to pass to cURL, including custom user agent
USER_AGENT="oil-version-checker/1.0 george@rawlinson.net.nz"
CURL_OPTS=(--silent --user-agent "$USER_AGENT")
curl "${CURL_OPTS[@]}" "$UPSTREAM_URL" | \
hxnormalize -x | \
hxselect -c 'a' -s '\n' | \
grep '.tar.gz' | \
sed -e "s/^oil-//" -e "s/\.tar.gz$//"
exit 0