wip on cli args

Cargo.toml

@@ -9,6 +9,7 @@ description = "modern and simple, yet efficient backup solution"
 
 [dependencies]
 anyhow = "1.0"
+argh = "0.1"
 base64 = "0.22"
 blake = "2"
 chacha20poly1305 = "0.10"
@@ -18,7 +19,6 @@ hex = "0.4"
 log = "0.4"
 rand = "0.8"
 reed-solomon = "0.2"
-seahorse = "2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1"
 sha2 = "0.10"
@@ -32,7 +32,9 @@ default-features = false
 features = ["process"]
 
 [dev-dependencies]
+assert_cmd = "2"
 criterion = "0.5"
+predicates = "3"
 pretty_assertions = "1"
 proptest = "1"
 two-rusty-forks = "0.4"
@@ -40,7 +42,14 @@ two-rusty-forks = "0.4"
 [dev-dependencies.cargo-husky]
 version = "1"
 default-features = false
-features = ["run-for-all", "prepush-hook", "run-cargo-check", "run-cargo-test", "run-cargo-clippy", "run-cargo-fmt"]
+features = [
+    "run-for-all",
+    "prepush-hook",
+    "run-cargo-check",
+    "run-cargo-test",
+    "run-cargo-clippy",
+    "run-cargo-fmt",
+]
 
 [[bench]]
 name = "bench"
@@ -50,4 +59,4 @@ harness = false
 debug = 1
 
 [features]
-failpoints = [ "fail/failpoints" ]
+failpoints = ["fail/failpoints"]

src/main.rs

@@ -1,13 +1,18 @@
-use seahorse::App;
-use std::env;
+use argh::FromArgs;
+use std::path::PathBuf;
+
+#[derive(FromArgs, PartialEq, Debug)]
+/// Options for the program.
+struct Options {
+    #[argh(positional)]
+    pub source: PathBuf,
+    #[argh(positional)]
+    pub destination: PathBuf,
+}
 
 fn main() {
-    let args: Vec<String> = env::args().collect();
-    let app = App::new(env!("CARGO_PKG_NAME"))
-        .description(env!("CARGO_PKG_DESCRIPTION"))
-        .author(env!("CARGO_PKG_AUTHORS"))
-        .version(env!("CARGO_PKG_VERSION"))
-        .action(|c| println!("Hello, {:?}", c.args));
+    let options: Options = argh::from_env();
 
-    app.run(args);
+    println!("Source: {}", options.source.display());
+    println!("Destination: {}", options.destination.display());
 }

tests/cli_tests.rs

@@ -0,0 +1,14 @@
+use assert_cmd::prelude::*;
+use predicates::prelude::*;
+use std::process::Command;
+
+#[test]
+fn fails_without_arguments() -> Result<(), Box<dyn std::error::Error>> {
+    let mut cmd = Command::cargo_bin("bakare")?;
+
+    cmd.assert()
+        .failure()
+        .stderr(predicate::str::contains("Required positional arguments not provided:"));
+
+    Ok(())
+}