Add support for building with meson and add flatpak template

.gitignore

@@ -1,2 +1,3 @@
 /target
-/.cargo
+/.cargo
+/_build

README.md

@@ -62,6 +62,13 @@ sudo docker cp $(CONTAINER_ID):/root/lemoa/target/release/lemoa .
 
 Once the build is done, there will be an executable `lemoa` binary file in your current directory, executing it starts Lemoa :tada:.
 
+# Building with meson
+```
+meson _build
+ninja -C _build
+sudo ninja -C _build install
+```
+
 # License
 
 Lemoa is licensed under the [**GNU General Public License**](https://www.gnu.org/licenses/gpl.html): You can use, study and share it as you want.

build-aux/com.lemmy-gtk.lemoa.json

@@ -0,0 +1,55 @@
+{
+    "id": "com.lemmy-gtk.lemoa",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "42",
+    "sdk": "org.gnome.Sdk",
+    "sdk-extensions": [
+        "org.freedesktop.Sdk.Extension.rust-stable",
+        "org.freedesktop.Sdk.Extension.llvm14"
+    ],
+    "command": "lemoa",
+    "finish-args": [
+        "--share=ipc",
+        "--socket=fallback-x11",
+        "--socket=wayland",
+        "--device=dri",
+        "--env=RUST_LOG=gtk_rust_template=debug",
+        "--env=G_MESSAGES_DEBUG=none",
+        "--env=RUST_BACKTRACE=1"
+    ],
+    "build-options": {
+        "append-path": "/usr/lib/sdk/rust-stable/bin:/usr/lib/sdk/llvm14/bin",
+        "build-args": [
+            "--share=network"
+        ],
+        "env": {
+            "CARGO_REGISTRIES_CRATES_IO_PROTOCOL": "sparse",
+            "CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER": "clang",
+            "CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS": "-C link-arg=-fuse-ld=/usr/lib/sdk/rust-stable/bin/mold",
+            "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER": "clang",
+            "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUSTFLAGS": "-C link-arg=-fuse-ld=/usr/lib/sdk/rust-stable/bin/mold"
+        },
+        "test-args": [
+            "--socket=x11",
+            "--share=network"
+        ]
+    },
+    "modules": [
+        {
+            "name": "lemoa",
+            "buildsystem": "meson",
+            "run-tests": true,
+            "config-opts": [
+                "-Dprofile=development"
+            ],
+            "sources": [
+                {
+                    "type": "dir",
+                    "path": "../"
+                }
+            ]
+        }
+    ]
+}
+
+

build-aux/dist-vendor.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+export DIST="$1"
+export SOURCE_ROOT="$2"
+
+cd "$SOURCE_ROOT"
+mkdir "$DIST"/.cargo
+cargo vendor | sed 's/^directory = ".*"/directory = "vendor"/g' > $DIST/.cargo/config
+# Move vendor into dist tarball directory
+mv vendor "$DIST"
+
+

meson.build

@@ -0,0 +1,43 @@
+project(
+  'lemoa',
+  'rust',
+  version: '0.1.0',
+  meson_version: '>= 0.59',
+  license: 'GPL-3.0',
+)
+
+gnome = import('gnome')
+
+application_id = 'com.lemmy-gtk.lemoa'
+
+dependency('glib-2.0', version: '>= 2.66')
+dependency('gio-2.0', version: '>= 2.66')
+dependency('gtk4', version: '>= 4.0.0')
+
+glib_compile_resources = find_program('glib-compile-resources', required: true)
+glib_compile_schemas = find_program('glib-compile-schemas', required: true)
+desktop_file_validate = find_program('desktop-file-validate', required: false)
+cargo = find_program('cargo', required: true)
+
+version = meson.project_version()
+
+prefix = get_option('prefix')
+bindir = prefix / get_option('bindir')
+
+datadir = prefix / get_option('datadir')
+pkgdatadir = datadir / meson.project_name()
+
+meson.add_dist_script(
+  'build-aux/dist-vendor.sh',
+  meson.project_build_root() / 'meson-dist' / meson.project_name() + '-' + version,
+  meson.project_source_root()
+)
+
+subdir('src')
+
+gnome.post_install(
+  gtk_update_icon_cache: true,
+  glib_compile_schemas: true,
+  update_desktop_database: true,
+)
+

src/config.rs

@@ -0,0 +1,8 @@
+pub const APP_ID: &str = "com.lemmy-gtk.lemoa";
+pub const GETTEXT_PACKAGE: &str = ;
+pub const LOCALEDIR: &str = ;
+pub const PKGDATADIR: &str = "/usr/local/share/lemoa";
+pub const PROFILE: &str = ;
+pub const RESOURCES_FILE: &str = concat!("/usr/local/share/lemoa", "/resources.gresource");
+pub const VERSION: &str = "0.1.0";
+

src/config.rs.in

@@ -0,0 +1,8 @@
+pub const APP_ID: &str = @APP_ID@;
+pub const GETTEXT_PACKAGE: &str = @GETTEXT_PACKAGE@;
+pub const LOCALEDIR: &str = @LOCALEDIR@;
+pub const PKGDATADIR: &str = @PKGDATADIR@;
+pub const PROFILE: &str = @PROFILE@;
+pub const RESOURCES_FILE: &str = concat!(@PKGDATADIR@, "/resources.gresource");
+pub const VERSION: &str = @VERSION@;
+

src/meson.build

@@ -0,0 +1,44 @@
+# Configuration file
+conf = configuration_data()
+conf.set_quoted('APP_ID', application_id)
+conf.set_quoted('PKGDATADIR', pkgdatadir)
+conf.set_quoted('VERSION', version)
+
+configure_file(
+    input: 'config.rs.in',
+    output: 'config.rs',
+    configuration: conf
+)
+
+run_command(
+  'cp',
+  join_paths(meson.project_build_root(), 'src', 'config.rs'),
+  join_paths(meson.project_source_root(), 'src', 'config.rs'),
+  check: true
+)
+
+# Setup cargo
+cargo = find_program('cargo')
+cargo_env = [ 'CARGO_HOME=' + meson.project_build_root() / 'cargo-home' ]
+cargo_options = [ '--manifest-path', meson.project_source_root() / 'Cargo.toml' ]
+cargo_options += [ '--target-dir', meson.project_build_root() / 'target' ]
+cargo_options += [ '--release' ]
+
+cargo_release = custom_target(
+  'cargo-build',
+  build_by_default: true,
+  build_always_stale: true,
+  output: meson.project_name(),
+  console: true,
+  install: true,
+  install_dir: bindir,
+  command: [
+    'env',
+    cargo_env,
+    cargo, 'build',
+    cargo_options,
+    '&&',
+    'cp', 'target' / 'release' / meson.project_name(), '@OUTPUT@',
+  ]
+)
+