build: add flatpak feature

.gitignore

@@ -8,4 +8,7 @@ container-images-uris.txt
 container-images.txt
 cached-container-images.tar
 
+# Flatpak
+.flatpak-builder
+
 # vim: tw=100 colorcolumn=100

Cargo.toml

@@ -9,6 +9,10 @@ build = "build.rs"
 edition = "2018"
 license = "GPLv3"
 
+[features]
+default = []
+flatpak = []
+
 [dependencies]
 clap = { version = "4.0", features = ["color", "help", "std", "usage", "error-context", "suggestions", "wrap_help", "derive"] }
 glib = "0.18.0"

Makefile

@@ -4,13 +4,13 @@ test:
 	RUST_BACKTRACE=1 cargo test
 
 run:
-	RUST_LOG=warn RUST_BACKTRACE=1 cargo run -- --no-fork
+	RUST_LOG=warn RUST_BACKTRACE=1 cargo run $(CARGO_ARGS) -- --no-fork
 
 install: install-resources
-	cargo install --path . --force --root $(DESTDIR)$(PREFIX)
+	cargo install $(CARGO_ARGS) --path . --force --root $(DESTDIR)$(PREFIX)
 
 install-debug: install-resources
-	cargo install --debug --path . --force --root $(DESTDIR)$(PREFIX)
+	cargo install $(CARGO_ARGS) --debug --path . --force --root $(DESTDIR)$(PREFIX)
 
 install-resources:
 	mkdir -p $(DESTDIR)$(PREFIX)/share/nvim-gtk/

src/nvim/mod.rs

@@ -504,11 +504,13 @@ pub fn start<'a>(
     timeout: Option<Duration>,
     args_for_neovim: Vec<String>,
 ) -> result::Result<(NvimSession, IoFuture<'a>), NvimInitError> {
-    let mut cmd = if let Some(path) = nvim_bin_path {
-        Command::new(path)
-    } else {
-        Command::new("nvim")
-    };
+    let nvim_cmd = nvim_bin_path.unwrap_or_else(|| "nvim".into());
+    #[cfg(not(feature = "flatpak"))]
+    let mut cmd = Command::new(nvim_cmd);
+    #[cfg(feature = "flatpak")]
+    let mut cmd = Command::new("flatpak-spawn");
+    #[cfg(feature = "flatpak")]
+    cmd.arg("--host").arg(nvim_cmd);
 
     cmd.arg("--embed")
         .arg("--cmd")