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/tools/rover/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, callPackage
+, fetchFromGitHub
+, perl
+, rustPlatform
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "rover";
+  version = "0.5.1";
+
+  src = fetchFromGitHub {
+    owner = "apollographql";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-wBHMND/xpm9o7pkWMUj9lEtEkzy3mX+E4Dt7qDn6auY=";
+  };
+
+  cargoSha256 = "sha256-n0R2MdAYGsOsYt4x1N1KdGvBZYTALyhSzCGW29bnFU4=";
+
+  nativeBuildInputs = [
+    perl
+  ];
+
+  # The rover-client's build script (crates/rover-client/build.rs) will try to
+  # download the API's graphql schema at build time to our read-only filesystem.
+  # To avoid this we pre-download it to a location the build script checks.
+  preBuild = ''
+    mkdir crates/rover-client/.schema
+    cp ${./schema}/etag.id        crates/rover-client/.schema/
+    cp ${./schema}/schema.graphql crates/rover-client/.schema/
+  '';
+
+  passthru.updateScript = ./update.sh;
+
+  # Some tests try to write configuration data to a location in the user's home
+  # directory. Since this would be /homeless-shelter during the build, point at
+  # a writeable location instead.
+  preCheck = ''
+    export APOLLO_CONFIG_HOME="$PWD"
+  '';
+
+  meta = with lib; {
+    description = "A CLI for managing and maintaining graphs with Apollo Studio";
+    homepage = "https://www.apollographql.com/docs/rover";
+    license = licenses.mit;
+    maintainers = [ maintainers.ivanbrennan ];
+    platforms = ["x86_64-linux"];
+  };
+}

pkgs/development/tools/rover/schema/etag.id

@@ -0,0 +1 @@
+2694c7b893d44c9ad8f5d7161116deb9985a6bd05e8e0cdcd7379947430e6f89

pkgs/development/tools/rover/update.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl gnugrep gnused jq nix-prefetch
+
+set -eu -o pipefail
+
+dirname=$(realpath "$(dirname "$0")")
+nixpkgs=$(realpath "${dirname}/../../../..")
+
+old_rover_version=$(nix eval --raw -f "$nixpkgs" rover.version)
+rover_url=https://api.github.com/repos/apollographql/rover/releases/latest
+rover_tag=$(curl "$rover_url" | jq --raw-output ".tag_name")
+rover_version="$(expr "$rover_tag" : 'v\(.*\)')"
+
+if [[ "$old_rover_version" == "$rover_version" ]]; then
+    echo "rover is up-to-date: ${old_rover_version}"
+    exit 0
+fi
+
+echo "Fetching rover"
+rover_tar_url="https://github.com/apollographql/rover/archive/refs/tags/${rover_tag}.tar.gz"
+{
+    read rover_hash
+    read repo
+} < <(nix-prefetch-url "$rover_tar_url" --unpack --type sha256 --print-path)
+
+# Convert hash to SRI representation
+rover_sri_hash=$(nix hash to-sri --type sha256 "$rover_hash")
+
+# Update rover version.
+sed --in-place \
+    "s|version = \"[0-9.]*\"|version = \"$rover_version\"|" \
+    "$dirname/default.nix"
+
+# Update rover hash.
+sed --in-place \
+    "s|sha256 = \"[a-zA-Z0-9\/+-=]*\"|sha256 = \"$rover_sri_hash\"|" \
+    "$dirname/default.nix"
+
+# Clear cargoSha256.
+sed --in-place \
+    "s|cargoSha256 = \".*\"|cargoSha256 = \"sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=\"|" \
+    "$dirname/default.nix"
+
+# Update cargoSha256
+echo "Computing cargoSha256"
+cargoSha256=$(
+    nix-prefetch "{ sha256 }: (import $nixpkgs {}).rover.cargoDeps.overrideAttrs (_: { outputHash = sha256; })"
+)
+sed --in-place \
+    "s|cargoSha256 = \".*\"|cargoSha256 = \"$cargoSha256\"|" \
+    "$dirname/default.nix"
+
+# Update apollo api schema info
+response="$(mktemp)"
+schemaUrl=https://graphql.api.apollographql.com/api/schema
+
+mkdir -p "$dirname"/schema
+
+# Fetch schema info
+echo "Fetching Apollo GraphQL schema"
+# include response headers, and append terminating newline to response body
+curl --include --write-out "\n" "$schemaUrl" > "$response"
+
+# Parse response headers and write the etag to schema/etag.id
+grep \
+    --max-count=1 \
+    --only-matching \
+    --perl-regexp \
+    '^etag: \K\S*' \
+    "$response" \
+    > "$dirname"/schema/etag.id
+
+# Discard headers and blank line (terminated by carriage return), and write the
+# response body to schema/schema.graphql
+sed '1,/^\r/d' "$response" > "$dirname"/schema/schema.graphql