nixpkgs/pkgs/by-name/tr/tradingview/update.sh
2023-11-07 12:29:01 +11:00

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#!/usr/bin/env nix-shell
#! nix-shell -i bash -p curl jq git gnused gnugrep
#
# Get latest version of TradingView from Snapcraft.
#
snap_info=($(
curl -s -H 'X-Ubuntu-Series: 16' \
'https://api.snapcraft.io/api/v1/snaps/details/tradingview' \
| jq --raw-output \
'.revision,.download_sha512,.version,.last_updated'
))
# "revision" is the actual version identifier; "version" is for human consumption.
revision="${snap_info[0]}"
sha512="${snap_info[1]}"
sri=$(nix hash to-sri --type "sha512" $sha512)
upstream_version="${snap_info[2]}"
last_updated="${snap_info[3]}"
echo "Latest release is $upstream_version from $last_updated."
#
# Read the current TradingView version.
#
nixpkgs="$(git rev-parse --show-toplevel)"
tradingview_nix="$nixpkgs/pkgs/by-name/tr/tradingview/package.nix"
current_nix_version=$(
grep 'version\s*=' "$tradingview_nix" \
| sed -Ene 's/.*"(.*)".*/\1/p'
)
echo "Current nix version: $current_nix_version"
if [[ "$current_nix_version" = "$upstream_version" ]]; then
echo "TradingView is already up-to-date"
exit 0
fi
#
# Find and replace.
#
echo "Updating from ${current_nix_version} to ${upstream_version}, released ${last_updated}"
echo 's/hash\s*=\s*"[^"]*"\s*;/hash = "'"${sri}"'";/'
sed --regexp-extended \
-e 's/revision\s*=\s*"[0-9]+"\s*;/revision = "'"${revision}"'";/' \
-e 's#hash\s*=\s*"[^"]*"\s*;#hash = "'"${sri}"'";#' \
-e 's/version\s*=\s*".*"\s*;/version = "'"${upstream_version}"'";/' \
-i "$tradingview_nix"
#
# Attempt a build.
#
export NIXPKGS_ALLOW_UNFREE=1
if ! nix-build -A tradingview "$nixpkgs"; then
echo "The updated TradingView failed to build."
exit 1
fi
#
# Commit changes.
#
git add "$tradingview_nix"
git commit -m "tradingview: ${current_nix_version} -> ${upstream_version}"