oci: Use Centos Stream rolling image

.dockerignore

@@ -0,0 +1,5 @@
+target
+.git
+.gameplay
+*.md
+screenshot.png

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [[bin]]
-name = "go"
+name = "yamlabyrinth"
 path = "src/bin/go.rs"
 
 [lib]

Containerfile

@@ -0,0 +1,11 @@
+FROM docker.io/library/rust:1-slim AS builder
+WORKDIR /src
+COPY Cargo.toml Cargo.lock ./
+COPY src ./src
+RUN cargo build --release --bin yamlabyrinth
+
+FROM quay.io/centos/centos:stream10-minimal
+COPY --from=builder /src/target/release/yamlabyrinth /usr/local/bin/yamlabyrinth
+USER nobody
+WORKDIR /tmp
+ENTRYPOINT ["yamlabyrinth"]

README.md

@@ -11,6 +11,17 @@ There are 11 levels in the game, so if you're on level 12, you won the game!
 
 ## How to start:
 
-    cargo run
+    cargo run --release
 
-## Dependencies
+## How to start (container):
+
+    docker run -it --rm quay.io/kareiva/yamlabyrinth:latest
+
+## LLM Notice
+
+This was a fun project to do while learning Rust syntax and pecularities. I 
+have mostly used Opus 4.7 with 1M context to assist me with coding. 
+
+## Author
+
+Simonas Kareiva <skareiva@redhat.com>, <simonas@5grupe.lt>

src/tui.rs

@@ -191,6 +191,19 @@ impl Editor {
         }
     }
 
+    fn delete_line(&mut self) {
+        let (r, _) = self.cursor;
+        if self.buffer.len() == 1 {
+            self.buffer[0].clear();
+            self.cursor = (0, 0);
+        } else {
+            self.buffer.remove(r);
+            let new_r = r.min(self.buffer.len() - 1);
+            let new_col = self.cursor.1.min(self.buffer[new_r].len());
+            self.cursor = (new_r, new_col);
+        }
+    }
+
     fn newline(&mut self) {
         let (r, col) = self.cursor;
         let col = col.min(self.buffer[r].len());
@@ -488,6 +501,7 @@ fn step(
     // Editor focus inside Game: dispatch editing keys.
     if *focus == Focus::Editor && matches!(screen, Screen::Game) {
         match key.code {
+            KeyCode::Char('k') if ctrl => editor.delete_line(),
             KeyCode::Char(c) if !ctrl => editor.insert_char(c),
             KeyCode::Backspace => editor.backspace(),
             KeyCode::Delete => editor.delete(),
@@ -707,6 +721,7 @@ fn help_widget<'a>() -> Paragraph<'a> {
         \n\
         [Tab]            swap focus between log and editor\n\
         [Ctrl-X]         grade your YAML\n\
+        [Ctrl-K]         delete current line (in editor)\n\
         [Ctrl-H]         open this help\n\
         [Esc]            close help · or focus log when editing\n\
         [↑/↓]            scroll the log  (when log is focused)\n\