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/development/libraries/rure/Cargo.lock

@@ -0,0 +1,49 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.125"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5916d2ae698f6de9bfb891ad7a8d65c09d232dc58cc4ac433c7da3b2fd84bc2b"
+
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
+[[package]]
+name = "regex"
+version = "1.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "rure"
+version = "0.2.1"
+dependencies = [
+ "libc",
+ "regex",
+]

pkgs/development/libraries/rure/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, stdenv
+, rustPlatform
+, fetchCrate
+}:
+
+let
+  pin = lib.importJSON ./pin.json;
+in
+
+rustPlatform.buildRustPackage {
+  inherit (pin) pname version;
+
+  src = fetchCrate pin;
+
+  # upstream doesn't ship a Cargo.lock, is generated by the update script
+  postPatch = ''
+    cp ${./Cargo.lock} Cargo.lock
+  '';
+
+  cargoLock.lockFile = ./Cargo.lock;
+
+  outputs = [ "out" "dev" ];
+
+  # Headers are not handled by cargo nor buildRustPackage
+  postInstall = ''
+    install -Dm644 include/rure.h -t "$dev/include"
+  '';
+
+  passthru.updateScript = ./update.sh;
+
+  meta = {
+    description = "A C API for Rust's regular expression library";
+    homepage = "https://crates.io/crates/rure";
+    license = [
+      lib.licenses.mit
+      lib.licenses.asl20
+    ];
+    maintainers = [ lib.maintainers.sternenseemann ];
+  };
+}

pkgs/development/libraries/rure/pin.json

@@ -0,0 +1,5 @@
+{
+  "pname": "rure",
+  "version": "0.2.1",
+  "sha256": "18sd1dfagf2338mp32kfjbqpc3n0agm61p044jl7yhy299ws21r8"
+}

pkgs/development/libraries/rure/update.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -p nix jq curl cargo rsync
+#! nix-shell -i bash
+
+set -eu
+
+cd "$(dirname "$0")"
+
+crate=rure
+
+echo "Getting latest version from crates.io API" >&2
+
+curlOpts=(
+  -H "Accept: application/json"
+  -H "User-Agent: $crate update script (https://github.com/nixos/nixpkgs/)"
+)
+
+version="$(curl "${curlOpts[@]}" "https://crates.io/api/v1/crates/$crate" \
+  | jq -r .crate.max_stable_version)"
+
+echo "Prefetching latest tarball from crates.io" >&2
+
+url="https://crates.io/api/v1/crates/$crate/$version/download"
+prefetch="$(nix-prefetch-url --print-path --type sha256 --unpack "$url")"
+
+cat > pin.json <<EOF
+{
+  "pname": "$crate",
+  "version": "$version",
+  "sha256": "$(printf '%s' "$prefetch" | head -n1)"
+}
+EOF
+
+echo "Generating updated Cargo.lock" >&2
+
+tmp="$(mktemp -d)"
+
+cleanup() {
+  echo "Removing $tmp" >&2
+  rm -rf "$tmp"
+}
+
+trap cleanup EXIT
+
+rsync -a --chmod=ugo=rwX "$(printf '%s' "$prefetch" | tail -n1)/" "$tmp"
+
+pushd "$tmp"
+cargo update
+popd
+
+cp "$tmp/Cargo.lock" ./Cargo.lock