uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/misc/zammad/update.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ "$#" -gt 2 ] || [[ "$1" == -* ]]; then
+  echo "Regenerates packaging data for the zammad packages."
+  echo "Usage: $0 [package name] [zammad directory in nixpkgs]"
+  exit 1
+fi
+
+VERSION=$(curl -s https://ftp.zammad.com/ | grep -v latest | grep tar.gz | sed "s/<a href=\".*\">zammad-//" | sort -h | tail -n 1 | awk '{print $1}' | sed 's/.tar.gz<\/a>//')
+TARGET_DIR="$2"
+WORK_DIR=$(mktemp -d)
+SOURCE_DIR=$WORK_DIR/zammad-$VERSION
+
+pushd $TARGET_DIR
+
+rm -rf \
+    ./source.json \
+    ./gemset.nix \
+    ./yarn.lock \
+    ./yarn.nix
+
+
+# Check that working directory was created.
+if [[ ! "$WORK_DIR" || ! -d "$WORK_DIR" ]]; then
+    echo "Could not create temporary directory."
+    exit 1
+fi
+
+# Delete the working directory on exit.
+function cleanup {
+  rm -rf "$WORK_DIR"
+}
+trap cleanup EXIT
+
+
+pushd $WORK_DIR
+
+echo ":: Creating source.json"
+nix-prefetch-github zammad zammad --rev $VERSION --json --fetch-submodules | jq 'del(.leaveDotGit) | del(.deepClone)' > $TARGET_DIR/source.json
+echo >> $TARGET_DIR/source.json
+
+echo ":: Fetching source"
+curl -L https://github.com/zammad/zammad/archive/$VERSION.tar.gz --output source.tar.gz
+tar zxf source.tar.gz
+
+if [[ ! "$SOURCE_DIR" || ! -d "$SOURCE_DIR" ]]; then
+    echo "Source directory does not exists."
+    exit 1
+fi
+
+pushd $SOURCE_DIR
+
+echo ":: Creating gemset.nix"
+bundix --lockfile=./Gemfile.lock  --gemfile=./Gemfile --gemset=$TARGET_DIR/gemset.nix
+
+echo ":: Creating yarn.nix"
+yarn install
+cp yarn.lock $TARGET_DIR
+yarn2nix > $TARGET_DIR/yarn.nix
+
+# needed to avoid import from derivation
+jq --arg VERSION "$VERSION" '. += {name: "Zammad", version: $VERSION}' package.json > $TARGET_DIR/package.json
+
+popd
+popd
+popd