50 lines
2.3 KiB
Bash
Executable file
50 lines
2.3 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p curl xq-xml nix-prefetch
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set -euo pipefail
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cd "$(dirname "${BASH_SOURCE[0]}")"
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DRV_DIR="$PWD"
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OLD_VERSION="$(sed -nE 's/\s*version = "(.*)".*/\1/p' ./default.nix)"
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NEW_VERSION="$(curl -H 'Accept: application/rss+xml' 'https://sourceforge.net/projects/sevenzip/rss?path=/7-Zip' | xq -x "substring((/rss/channel/item[link[contains(., 'src.tar.xz')]])[1]/title, 8, 5)")"
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echo "comparing versions $OLD_VERSION => $NEW_VERSION"
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if [[ "$OLD_VERSION" == "$NEW_VERSION" ]]; then
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echo "Already up to date! Doing nothing"
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exit 0
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fi
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NIXPKGS_ROOT="$(realpath "$DRV_DIR/../../../..")"
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echo "getting free source hash"
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OLD_FREE_HASH="$(nix-instantiate --eval --strict -E "with import $NIXPKGS_ROOT {}; _7zz.src.drvAttrs.outputHash" | tr -d '"')"
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echo "getting unfree source hash"
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OLD_UNFREE_HASH="$(nix-instantiate --eval --strict -E "with import $NIXPKGS_ROOT {}; (_7zz.override { enableUnfree = true; }).src.drvAttrs.outputHash" | tr -d '"')"
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NEW_VERSION_FORMATTED="$(echo "$NEW_VERSION" | tr -d '.')"
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URL="https://7-zip.org/a/7z${NEW_VERSION_FORMATTED}-src.tar.xz"
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# `nix-prefetch` is broken without flakes
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# see https://github.com/msteen/nix-prefetch/issues/51
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NEW_FREE_HASH=$(nix-prefetch -f "$NIXPKGS_ROOT" -E "_7zz.src" --url "$URL" --option extra-experimental-features flakes)
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NEW_UNFREE_OUT=$(nix-prefetch -f "$NIXPKGS_ROOT" -E "(_7zz.override { enableUnfree = true; }).src" --url "$URL" --output raw --print-path --option extra-experimental-features flakes)
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# first line of raw output is the hash
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NEW_UNFREE_HASH="$(echo "$NEW_UNFREE_OUT" | sed -n 1p)"
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# second line of raw output is the src path
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NEW_UNFREE_SRC="$(echo "$NEW_UNFREE_OUT" | sed -n 2p)"
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# make sure to nuke the unfree src from the updater's machine
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# > the license requires that you agree to these use restrictions, or you must remove the software (source and binary) from your hard disks
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# https://fedoraproject.org/wiki/Licensing:Unrar
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nix-store --delete "$NEW_UNFREE_SRC"
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echo "updating version"
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sed -i "s/version = \"$OLD_VERSION\";/version = \"$NEW_VERSION\";/" "$DRV_DIR/default.nix"
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echo "updating free hash"
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sed -i "s@free = \"$OLD_FREE_HASH\";@free = \"$NEW_FREE_HASH\";@" "$DRV_DIR/default.nix"
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echo "updating unfree hash"
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sed -i "s@unfree = \"$OLD_UNFREE_HASH\";@unfree = \"$NEW_UNFREE_HASH\";@" "$DRV_DIR/default.nix"
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echo "done"
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