Fix rust flatpak

.flatpak-manifest.json

@@ -22,7 +22,20 @@
         "--talk-name=org.freedesktop.secrets",
         "--own-name=org.kde.StatusNotifierItem-2-2"
     ],
+    "sdk-extensions": [
+        "org.freedesktop.Sdk.Extension.rust-stable"
+    ],
+    "build-options": {
+        "append-path": "/usr/lib/sdk/rust-stable/bin",
+        "env": {
+            "RUST_BACKTRACE": "1",
+            "CARGO_NET_OFFLINE": "true",
+            "RUSTFLAGS": "--remap-path-prefix =../"
+        }
+    },
+
     "modules": [
+        "flatpak/corrosion.json",
         {
             "name": "kirigamiaddons",
             "config-opts": [
@@ -111,6 +124,7 @@
             "name": "integral",
             "buildsystem": "cmake-ninja",
             "sources": [
+                "flatpak/generated-sources.json",
                 {
                     "type": "git",
                     "url": "https://invent.kde.org/tfella/integral.git",

flatpak/corrosion.json

@@ -0,0 +1,30 @@
+{
+    "build-options": {
+        "env": {
+            "CARGO_HOME": "/run/build/corrosion/cargo"
+        }
+    },
+    "buildsystem": "cmake-ninja",
+    "cleanup": [
+        "/app"
+    ],
+    "config-opts": [
+        "-DCORROSION_INSTALL_EXECUTABLE=OFF",
+        "-DCORROSION_BUILD_TESTS=OFF",
+        "-DCORROSION_DEV_MODE=OFF"
+    ],
+    "name": "corrosion",
+    "sources": [
+        {
+            "sha256": "843334a9f0f5efbc225dccfa88031fe0f2ec6fd787ca1e7d55ed27b2c25d9c97",
+            "type": "archive",
+            "url": "https://github.com/corrosion-rs/corrosion/archive/refs/tags/v0.5.1.tar.gz",
+            "x-checker-data": {
+                "type": "anitya",
+                "project-id": 242799,
+                "stable-only": true,
+                "url-template": "https://github.com/corrosion-rs/corrosion/archive/refs/tags/v0.5.1.tar.gz"
+            }
+        }
+    ]
+}

flatpak/regenerate-sources.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+set -e
+
+export GIT_CLONE_ARGS="--depth 1 --single-branch"
+export FLATPAK_DIR="$(readlink -f $(dirname $0))"
+cd ${FLATPAK_DIR}
+
+if [ ! -d flatpak-builder-tools ]; then
+        git clone ${GIT_CLONE_ARGS} https://github.com/flatpak/flatpak-builder-tools
+else
+	git -C flatpak-builder-tools pull
+fi
+
+./flatpak-builder-tools/cargo/flatpak-cargo-generator.py -o generated-sources.json ../../integral/src/sdk/Cargo.lock