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