Add Dependabot and CI

.github/dependabot.yaml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: cargo
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/ci.yaml

@@ -0,0 +1,30 @@
+on:
+- push
+name: CI
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+    - run: cargo build --verbose
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+    - run: cargo fmt --verbose --all --check
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+    - run: cargo test -- --nocapture
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+      with:
+        components: clippy
+    - run: cargo clippy --all-targets

src/lib.rs

@@ -182,6 +182,9 @@ where
 }
 
 /// Get the PIN using the walker binary
+///
+/// # Errors
+/// Errors
 pub fn walker_get_pin(_state: &State) -> std::result::Result<String, GetPinError> {
     std::process::Command::new("walker")
         .arg("--password")
@@ -200,6 +203,9 @@ pub fn walker_get_pin(_state: &State) -> std::result::Result<String, GetPinError
 }
 
 /// Listen for Assuan requests and respond to them
+///
+/// # Errors
+/// Errors
 pub fn listen<F>(input: impl BufRead, output: &mut impl Write, get_pin: F) -> Result<()>
 where
     F: Fn(&State) -> std::result::Result<String, GetPinError> + Copy,
@@ -239,6 +245,7 @@ mod test {
     use super::listen;
     use indoc::indoc;
 
+    #[allow(clippy::unnecessary_wraps)]
     fn get_pin(_state: &super::State) -> std::result::Result<String, super::GetPinError> {
         Ok("1234".to_string())
     }