add up.sh

up.sh

@@ -0,0 +1,56 @@
+#! /usr/bin/env bash
+# TODO
+# - Also try SHA256 hashes
+set -euxo pipefail
+
+NIX_PATH=nixpkgs=$(pwd)
+
+PACKAGE_NAME=$1
+OLD_VERSION=$2
+NEW_VERSION=$3
+
+BRANCH_NAME="auto-update/$1-$2-to-$3"
+
+DERIVATION_FILE=$(find . | grep "/$1/default.nix" | head -n1)
+
+function error_cleanup() {
+    git checkout master
+    git reset --hard
+    git branch -d "$BRANCH_NAME"
+}
+trap error_cleanup ERR
+
+git checkout -B "$BRANCH_NAME"
+git reset --hard
+
+OLD_HASH=$(nix-prefetch-url -A "$1.src")
+
+grep "$2" "$DERIVATION_FILE"
+
+sed -i "s/$2/$3/g" "$DERIVATION_FILE"
+
+NEW_HASH=$(nix-prefetch-url -A "$1.src")
+
+if [ "$OLD_HASH" = "$NEW_HASH" ]
+then
+
+    echo "Hashes equal; no update necesseary"
+    exit 0
+fi
+
+grep "$OLD_HASH" "$DERIVATION_FILE"
+
+sed -i "s/$OLD_HASH/$NEW_HASH/g" "$DERIVATION_FILE"
+
+nix-build -A $1
+
+git diff
+
+git commit -am  "$1: $2 -> $3
+
+Semi-automatic update.
+
+- [x] built on NixOS"
+
+git push --set-upstream origin "$BRANCH_NAME"
+git checkout master