Matt McHenry 3550ffd1d3 eclipses: add version to eclipses.json
this is necessary for the auto-update script to be able to see that
the version has changed as a result of running update.sh.
2025-04-14 11:22:32 -04:00

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#!/usr/bin/env nix-shell
#! nix-shell -i bash --pure -p curl cacert libxml2 yq nix jq
#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/3c7487575d9445185249a159046cc02ff364bff8.tar.gz
# ^
# |
# nixos-unstable ~ 2023-07-06 -----------------/
set -o errexit
set -o nounset
# scrape the downloads page for release info
curl -s -o eclipse-dl.html https://download.eclipse.org/eclipse/downloads/
trap "rm eclipse-dl.html" EXIT
dlquery() {
q=$1
xmllint --html eclipse-dl.html --xmlout 2>/dev/null | xq -r ".html.body.main.div.table[3].tr[1].td[0].a${q}";
}
# extract release info from download page HTML
platform_major=$(dlquery '."#text" | split(".") | .[0]' -r);
platform_minor=$(dlquery '."#text" | split(".") | .[1]' -r);
year=$(dlquery '."@href" | split("/") | .[] | select(. | startswith("R")) | split("-") | .[2] | .[0:4]')
buildmonth=$(dlquery '."@href" | split("/") | .[] | select(. | startswith("R")) | split("-") | .[2] | .[4:6]')
builddaytime=$(dlquery '."@href" | split("/") | .[] | select(. | startswith("R")) | split("-") | .[2] | .[6:12]')
timestamp="${year}${buildmonth}${builddaytime}";
# account for possible release-month vs. build-month mismatches
month=$buildmonth;
case "$buildmonth" in
'02'|'04') month='03' ;;
'05'|'07') month='06' ;;
'08'|'10') month='09' ;;
'11'|'01') month='12' ;;
esac
ECLIPSES_JSON=$(dirname $0)/eclipses.json;
t=$(mktemp);
# note: including platform_major, platform_minor, and version may seem redundant
# the first two are needed for the derivation itself; the third is necessary so
# that nixpkgs-update can see that the version changes as a result of this update
# script.
cat $ECLIPSES_JSON | jq ". + {platform_major: \"${platform_major}\",platform_minor: \"${platform_minor}\",version:\"${platform_major}.${platform_minor}\",year: \"${year}\",month: \"${month}\",buildmonth: \"${buildmonth}\",dayHourMinute: \"${builddaytime}\"}" > $t;
mv $t $ECLIPSES_JSON;
# prefetch new download hashes
for id in $(cat $ECLIPSES_JSON | jq -r '.eclipses | keys | .[]'); do
for arch in x86_64 aarch64; do
if [ $(cat $ECLIPSES_JSON | jq -r ".eclipses.${id}.dropUrl") == "true" ]; then
url="https://www.eclipse.org/downloads/download.php?r=1&nf=1&file=/eclipse/downloads/drops${platform_major}/R-${platform_major}.${platform_minor}-${timestamp}/eclipse-${id}-${platform_major}.${platform_minor}-linux-gtk-${arch}.tar.gz";
else
url="https://www.eclipse.org/downloads/download.php?r=1&nf=1&file=/technology/epp/downloads/release/${year}-${month}/R/eclipse-${id}-${year}-${month}-R-linux-gtk-${arch}.tar.gz";
fi
echo "prefetching ${id} ${arch}";
h=$(nix store prefetch-file --json "$url" | jq -r .hash);
t=$(mktemp);
cat $ECLIPSES_JSON | jq -r ".eclipses.${id}.hashes.${arch} = \"${h}\"" > $t;
mv $t $ECLIPSES_JSON;
done
done