1 files changed, 50 insertions, 0 deletions
diff --git a/pkgs/tools/archivers/7zz/update.sh b/pkgs/tools/archivers/7zz/update.sh
new file mode 100755
index 00000000000..bbc9804799a
--- /dev/null
+++ b/pkgs/tools/archivers/7zz/update.sh
@@ -0,0 +1,50 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p coreutils gnused curl jq
+set -euo pipefail
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
+DRV_DIR="$PWD"
+
+OLD_VERSION="$(sed -nE 's/\s*version = "(.*)".*/\1/p' ./default.nix)"
+
+NEW_VERSION="$(curl "https://sourceforge.net/projects/sevenzip/best_release.json" | jq '.platform_releases.linux.filename' -r | cut -d/ -f3)"
+
+echo "comparing versions $OLD_VERSION => $NEW_VERSION"
+if [[ "$OLD_VERSION" == "$NEW_VERSION" ]]; then
+    echo "Already up to date! Doing nothing"
+    exit 0
+fi
+
+NIXPKGS_ROOT="$(realpath "$DRV_DIR/../../../..")"
+
+echo "getting free source hash"
+OLD_FREE_HASH="$(nix-instantiate --eval --strict -E "with import $NIXPKGS_ROOT {}; _7zz.src.drvAttrs.outputHash" | tr -d '"')"
+echo "getting unfree source hash"
+OLD_UNFREE_HASH="$(nix-instantiate --eval --strict -E "with import $NIXPKGS_ROOT {}; (_7zz.override { enableUnfree = true; }).src.drvAttrs.outputHash" | tr -d '"')"
+
+NEW_VERSION_FORMATTED="$(echo "$NEW_VERSION" | tr -d '.')"
+URL="https://7-zip.org/a/7z${NEW_VERSION_FORMATTED}-src.tar.xz"
+
+
+NEW_FREE_HASH=$(nix-prefetch -f "$NIXPKGS_ROOT" -E "_7zz.src" --url "$URL")
+
+NEW_UNFREE_OUT=$(nix-prefetch -f "$NIXPKGS_ROOT" -E "(_7zz.override { enableUnfree = true; }).src" --url "$URL" --output raw --print-path)
+# first line of raw output is the hash
+NEW_UNFREE_HASH="$(echo "$NEW_UNFREE_OUT" | sed -n 1p)"
+# second line of raw output is the src path
+NEW_UNFREE_SRC="$(echo "$NEW_UNFREE_OUT" | sed -n 2p)"
+# make sure to nuke the unfree src from the updater's machine
+# > the license requires that you agree to these use restrictions, or you must remove the software (source and binary) from your hard disks
+# https://fedoraproject.org/wiki/Licensing:Unrar
+nix-store --delete "$NEW_UNFREE_SRC"
+
+
+echo "updating version"
+sed -i "s/version = \"$OLD_VERSION\";/version = \"$NEW_VERSION\";/" "$DRV_DIR/default.nix"
+
+echo "updating free hash"
+sed -i "s@free = \"$OLD_FREE_HASH\";@free = \"$NEW_FREE_HASH\";@" "$DRV_DIR/default.nix"
+echo "updating unfree hash"
+sed -i "s@unfree = \"$OLD_UNFREE_HASH\";@unfree = \"$NEW_UNFREE_HASH\";@" "$DRV_DIR/default.nix"
+
+echo "done"