Print command after output

.drone.yml

@@ -16,14 +16,40 @@ steps:
       - 'file /var/run/docker.sock || :'
       - 'pwd'
       - 'earthly +all'
-      # TODO: use more than one target
-      # - 'earthly --build-arg TOOLCHAIN=x86_64-unknown-linux-musl    --build-arg STRIP_CMD=x86_64-linux-gnu-strip +build'
       - 'cp -v ./dist/* /dist/'
 
-  - name: Gitea Artifacts
+  # - name: Minio Artifacts
+  #   image: plugins/s3
+  #   settings:
+  #     bucket: artifacts
+  #     access_key:
+  #       from_secret: MINIO_ARTIFACTS_ACCESS_KEY
+  #     secret_key:
+  #       from_secret: MINIO_ARTIFACTS_SECRET_KEY
+  #     source: dist/**/*
+  #     target: live-cli/${DRONE_BUILD_CREATED}-${DRONE_COMMIT}
+
+  - name: Publish Artifacts
+    image: curlimages/curl
+    volumes:
+      - name: dist
+        path: /dist
+    environment:
+      GITEA_SVC_USERNAME:
+        from_secrete: GITEA_SVC_USERNAME
+      GITEA_SVC_PASSWORD:
+        from_secret: GITEA_SVC_PASSWORD
+    commands:
+      - sh -c 'set -ex; cd /dist; for f in *; do curl --user "drone-svc:$${GITEA_SVC_PASSWORD}" -X PUT https://gitea.austen-wares.com.com/api/packages/public/generic/$${DRONE_REPO_NAME}/$$(date -Isecond)-$${DRONE_COMMIT}/$${f}; done'
+
+  - name: Publish release
     image: plugins/gitea-release
+    when:
+      event:
+        - tag
     settings:
-      api_key: "$${GITEA_API_KEY}"
+      api_key:
+        from_secret: GITEA_API_KEY
       base_url: https://gitea.austen-wares.com
       files: dist/*
     volumes:

.earthignore

@@ -1 +1,5 @@
-/target
+*
+!/Cargo.lock
+!/Cargo.toml
+!/src
+!/.cargo

Cargo.lock

@@ -32,7 +32,7 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.1.19",
  "libc",
  "winapi",
 ]
@@ -70,6 +70,12 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 
+[[package]]
+name = "cc"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -82,6 +88,43 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "clap"
+version = "4.0.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7db700bc935f9e43e88d00b0850dae18a63773cfbec6d8e070fccf7fef89a39"
+dependencies = [
+ "bitflags",
+ "clap_derive",
+ "clap_lex",
+ "is-terminal",
+ "once_cell",
+ "strsim",
+ "termcolor",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
+dependencies = [
+ "heck",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
+dependencies = [
+ "os_str_bytes",
+]
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.5"
@@ -213,6 +256,27 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "errno"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "filedescriptor"
 version = "0.8.2"
@@ -262,6 +326,12 @@ dependencies = [
  "wasi 0.11.0+wasi-snapshot-preview1",
 ]
 
+[[package]]
+name = "heck"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.19"
@@ -271,12 +341,43 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hermit-abi"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "hex"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "io-lifetimes"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46112a93252b123d31a119a8d1a1ac19deac4fac6e0e8b0df58f0d4e5870e63c"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
+
+[[package]]
+name = "is-terminal"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28dfb6c8100ccc63462345b67d1bbc3679177c75ee4bf59bf29c8b1d110b8189"
+dependencies = [
+ "hermit-abi 0.2.6",
+ "io-lifetimes",
+ "rustix",
+ "windows-sys",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -289,13 +390,20 @@ version = "0.2.138"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
+
 [[package]]
 name = "live-cli"
-version = "0.1.0"
+version = "0.3.0"
 dependencies = [
  "ansi4tui",
  "anyhow",
  "atty",
+ "clap",
  "crossbeam",
  "crossterm",
  "parking_lot",
@@ -419,6 +527,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "os_str_bytes"
+version = "6.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b7820b9daea5457c9f21c69448905d723fbd21136ccf521748f23fd49e723ee"
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -508,6 +622,30 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "proc-macro-error"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.47"
@@ -624,6 +762,20 @@ dependencies = [
  "str_indices",
 ]
 
+[[package]]
+name = "rustix"
+version = "0.36.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4feacf7db682c6c329c4ede12649cd36ecab0f3be5b7d74e6a20304725db4549"
+dependencies = [
+ "bitflags",
+ "errno",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -738,6 +890,12 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f026164926842ec52deb1938fae44f83dfdb82d0a5b0270c5bd5935ab74d6dd"
 
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
 [[package]]
 name = "syn"
 version = "1.0.105"
@@ -749,6 +907,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "termcolor"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "terminfo"
 version = "0.7.3"
@@ -988,6 +1155,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "live-cli"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -17,6 +17,7 @@ parking_lot = "0.12.1"
 tracing = { version = "0.1.37", features = ["release_max_level_off"] }
 tracing-subscriber = "0.3.16"
 ropey = "1.5.0"
+clap = { version = "4.0.32", features = ["derive"] }
 
 [package.metadata.deb]
 maintainer = "Austen Adler <agadler@austenadler.com>"

src/command.rs

@@ -13,7 +13,7 @@ use std::{
     process::{Command, Stdio},
 };
 
-pub type CommandRequest = (Arc<RwLock<CommandOptions>>, Arc<String>);
+pub type CommandRequest = (Arc<RwLock<CommandOptions>>, Arc<Option<String>>);
 
 #[derive(Debug)]
 pub enum CommandCompleted {
@@ -34,8 +34,8 @@ pub fn command_event_loop(
 ) -> Result<()> {
     loop {
         match command_request_receiver.recv() {
-        // TODO: Drain the command request channel so we only run the command once with the latest value
-        // Could use https://docs.rs/single_value_channel/latest/single_value_channel/
+            // TODO: Drain the command request channel so we only run the command once with the latest value
+            // Could use https://docs.rs/single_value_channel/latest/single_value_channel/
             Ok(command_request) => {
                 event_sender.send(EventMessage::CommandCompleted(
                     match run_inner(&command_request) {
@@ -90,11 +90,14 @@ fn run_inner(command_request: &CommandRequest) -> Result<CommandResult> {
         command.spawn()
     }?;
 
-    let mut stdin = child.stdin.take().context("Could not take stdin")?;
-    let text_orig_clone = command_request.1.clone();
-    std::thread::spawn(move || {
-        let _result = stdin.write_all(text_orig_clone.as_bytes());
-    });
+    if command_request.1.is_some() {
+        let mut stdin = child.stdin.take().context("Could not take stdin")?;
+        let text_orig_clone = command_request.1.clone();
+
+        std::thread::spawn(move || {
+            let _result = stdin.write_all(text_orig_clone.as_ref().as_ref().unwrap().as_bytes());
+        });
+    }
 
     // Collect the output
     let output = child.wait_with_output()?;

src/main.rs

@@ -6,9 +6,10 @@ mod command;
 mod event;
 mod ui;
 mod util;
-use anyhow::anyhow;
 use anyhow::bail;
+use anyhow::Context;
 use anyhow::Result;
+use clap::Parser;
 use command::CommandCompleted;
 use command::CommandRequest;
 use command::CommandResult;
@@ -16,10 +17,11 @@ use crossbeam::channel::Receiver;
 use crossbeam::channel::Sender;
 use crossterm::event::DisableBracketedPaste;
 use crossterm::event::EnableBracketedPaste;
+use crossterm::event::KeyEvent;
+use crossterm::event::KeyModifiers;
 use event::EventMessage;
 use parking_lot::RwLock;
 use ropey::Rope;
-use std::str::FromStr;
 use std::{
     io::{self, Write},
     sync::Arc,
@@ -36,9 +38,9 @@ use crossterm::{
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
 };
 
+// Tracing only
 #[cfg(debug_assertions)]
 use {
-    // Tracing
     std::fs::File,
     tracing::instrument,
     tracing::Level,
@@ -46,6 +48,15 @@ use {
     tracing_subscriber::{filter, prelude::*},
 };
 
+#[derive(Parser)]
+pub struct AppArgs {
+    #[clap(short, long, help = "Slurp stdin as input")]
+    stdin: bool,
+
+    #[clap(default_value = "sh")]
+    command: String,
+}
+
 /// The state of options for the command
 pub struct CommandOptions {
     /// The actual command to be called
@@ -68,15 +79,18 @@ pub struct CommandOptions {
 
     /// The position of the cursor
     cmdline_position: u16,
+
+    /// Command combined
+    combined_command: String,
 }
 
 /// The state of the application
 pub struct App {
     /// Original text
-    text_orig: Arc<String>,
+    text_orig: Arc<Option<String>>,
 
     /// Original text (for ui)
-    text_orig_rope: Rope,
+    text_orig_rope: Option<Rope>,
 
     // text_orig_formatted: Arc<String>
     /// The list of options for a command, given in an RwLock so the command runner can update it
@@ -92,53 +106,31 @@ pub struct App {
     render_states: RwLock<RenderStates>,
 }
 
-impl CommandOptions {
-    #[must_use]
-    pub fn from_template(template: &Template) -> Self {
-        let defaults = Self {
-            command: template.command(),
+impl Default for CommandOptions {
+    fn default() -> Self {
+        Self {
+            command: String::from("sh"),
             cmdline_position: 0_u16,
-            hidden_options: Vec::new(),
+            hidden_options: vec!["-c"],
             cmdline: String::new(),
             command_result: None,
             autorun: true,
-            wordsplit: true,
-        };
-
-        match template {
-            Template::Awk => Self { ..defaults },
-            Template::Sh(_) => Self {
-                hidden_options: vec!["-c"],
-                wordsplit: false,
-                ..defaults
-            },
-            Template::Jq => Self {
-                cmdline_position: 2,
-                cmdline: String::from("'.'"),
-                hidden_options: vec!["-C"],
-                ..defaults
-            },
-            Template::Grep | Template::Rg => Self {
-                cmdline_position: 1,
-                cmdline: String::from("''"),
-                hidden_options: vec!["--color=always"],
-                ..defaults
-            },
-            Template::Sed => Self {
-                cmdline_position: 3_u16,
-                cmdline: String::from("'s///g'"),
-                ..defaults
-            },
-            Template::Perl => Self {
-                cmdline_position: 9_u16,
-                cmdline: String::from("-p -e 's///'"),
-                ..defaults
-            },
+            wordsplit: false,
+            combined_command: String::new(),
         }
     }
 }
 
-// impl App<'_> {
+impl CommandOptions {
+    pub fn append_command(&mut self) {
+        if !self.combined_command.is_empty() {
+            self.combined_command += " | ";
+        }
+
+        self.combined_command += self.cmdline.as_ref();
+    }
+}
+
 impl App {
     /// Constructs a new instance of `App`
     ///
@@ -146,19 +138,18 @@ impl App {
     ///
     /// * `command_request_tx` - The sender for the command request worker
     /// * `input` - The stdin to be passed in to each invocation
-    /// * `template` - The template to use
     #[must_use]
-    pub fn from_template(
+    pub fn new(
         message_rx: Receiver<EventMessage>,
         command_request_tx: Sender<CommandRequest>,
-        input: String,
-        template: &Template,
+        input: Option<String>,
     ) -> Self {
-        let text_orig_rope = Rope::from_str(&input);
+        // let text_orig_rope = Rope::from_str(&input);
+        let text_orig_rope = input.as_ref().map(|s| Rope::from_str(s));
         Self {
             text_orig: Arc::new(input),
             text_orig_rope,
-            command_options: Arc::new(RwLock::new(CommandOptions::from_template(template))),
+            command_options: Arc::new(RwLock::new(CommandOptions::default())),
             message_rx,
             command_request_tx,
             render_states: RwLock::new(RenderStates::default()),
@@ -177,78 +168,31 @@ impl App {
     }
 }
 
-pub enum Template {
-    Sh(String),
-    Jq,
-    Grep,
-    Rg,
-    Sed,
-    Awk,
-    Perl,
-}
-
-impl FromStr for Template {
-    type Err = anyhow::Error;
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        match s.to_lowercase().trim() {
-            "jq" => Ok(Self::Jq),
-            "grep" => Ok(Self::Grep),
-            "rg" => Ok(Self::Rg),
-            "sed" => Ok(Self::Sed),
-            "awk" => Ok(Self::Awk),
-            "perl" => Ok(Self::Perl),
-            s @ ("sh" | "bash" | "zsh" | "dash") => Ok(Self::Sh(s.to_string())),
-            e => Err(anyhow!("{e} is not a supported command")),
-        }
-    }
-}
-
-impl Template {
-    #[must_use]
-    pub fn command(&self) -> String {
-        match self {
-            Self::Sh(s) => s.to_string(),
-            Self::Jq => String::from("jq"),
-            Self::Grep => String::from("grep"),
-            Self::Rg => String::from("rg"),
-            Self::Sed => String::from("sed"),
-            Self::Awk => String::from("awk"),
-            Self::Perl => String::from("perl"),
-        }
-    }
-}
-
 fn main() -> Result<()> {
     #[cfg(debug_assertions)]
     enable_tracing();
 
-    // Error if we aren't getting any stdin
-    if atty::is(atty::Stream::Stdin) {
-        bail!("You must send stdin to this command");
-    }
-
-    // Get the arguments
-    let arg = match std::env::args().nth(1) {
-        Some(a) => a,
-        None => bail!("You must pass a command"),
-    };
+    let args = AppArgs::parse();
 
     // Slurp all input
-    let text_orig = io::read_to_string(io::stdin())?;
+    let text_orig = match (args.stdin, atty::is(atty::Stream::Stdin)) {
+        // The requested stdin, but it's a tty
+        (true, true) => bail!("Stdin was requested with, but stdin is a tty"),
+
+        // They did not request stdin, and they didn't pipe to us
+        (false, true) => None,
+
+        // Someone is piping us something
+        (_, false) => Some(io::read_to_string(io::stdin()).context("Could not read stdin")?),
+    };
 
     // Start the command worker thread
     let (message_rx, command_request_tx) = init_message_passing();
 
     // Run the actual application
-    let app = App::from_template(
-        message_rx,
-        command_request_tx,
-        text_orig,
-        &Template::from_str(&arg)?,
-    );
+    let mut app = App::new(message_rx, command_request_tx, text_orig);
     enable_raw_mode()?;
     let mut stdout = io::stdout();
-    // execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
     execute!(
         stdout,
         EnterAlternateScreen,
@@ -258,7 +202,7 @@ fn main() -> Result<()> {
     let backend = CrosstermBackend::new(stdout);
     let mut terminal = Terminal::new(backend)?;
 
-    let res = run_app(&mut terminal, app);
+    let resulting_commandline = run_app(&mut terminal, &mut app);
 
     // Restore terminal
     disable_raw_mode()?;
@@ -270,11 +214,13 @@ fn main() -> Result<()> {
     )?;
     terminal.show_cursor()?;
 
-    let res = res?;
+    let resulting_commandline = resulting_commandline?;
 
-    if let Some(res) = res {
-        std::io::stderr().write_all(res.as_bytes())?;
+    if let Some(resulting_commandline) = resulting_commandline {
+        // TODO: I do not want to collect the whole thing into a vec
+        app.command_options.read().command_result.as_ref().map(|r| std::io::stdout().write_all(&r.stdout.bytes().collect::<Vec<u8>>())).transpose()?;
         std::io::stderr().write_all(b"\n")?;
+        std::io::stderr().write_all(resulting_commandline.as_bytes())?;
     }
 
     Ok(())
@@ -304,7 +250,7 @@ fn init_message_passing() -> (Receiver<EventMessage>, Sender<CommandRequest>) {
 
 #[allow(clippy::too_many_lines)]
 #[cfg_attr(debug_assertions, instrument(skip(terminal, app)))]
-fn run_app<B: Backend>(terminal: &mut Terminal<B>, app: App) -> Result<Option<String>> {
+fn run_app<B: Backend>(terminal: &mut Terminal<B>, app: &mut App) -> Result<Option<String>> {
     // When starting the app, ensure the command runs at least once
     {
         let mut command_options = app.command_options.write();
@@ -332,6 +278,26 @@ fn run_app<B: Backend>(terminal: &mut Terminal<B>, app: App) -> Result<Option<St
                 let mut command_options = app.command_options.write();
 
                 match crossterm_event {
+                    Event::Key(KeyEvent {
+                        code: KeyCode::Char('p'),
+                        modifiers: KeyModifiers::CONTROL,
+                        ..
+                    }) => {
+                        if command_options.command_result.is_some() {
+                            command_options.append_command();
+                        }
+
+                        // Move stdout to stdin
+                        if let Some(result) = &command_options.command_result {
+                            app.text_orig = Arc::new(Some(result.stdout.to_string()));
+                            app.text_orig_rope = Some(result.stdout.clone());
+                            command_options.cmdline = String::new();
+                            command_options.cmdline_position = 0;
+                            if command_options.autorun {
+                                app.run_command()?;
+                            }
+                        }
+                    }
                     Event::Key(key) => match key.code {
                         KeyCode::Esc => {
                             return Ok(None);
@@ -376,10 +342,10 @@ fn run_app<B: Backend>(terminal: &mut Terminal<B>, app: App) -> Result<Option<St
                             command_options.cmdline_position = 0_u16;
                         }
                         KeyCode::Enter => {
-                            return Ok(Some(format!(
-                                "{} {}",
-                                command_options.command, command_options.cmdline
-                            )));
+                            if command_options.command_result.is_some() {
+                                command_options.append_command();
+                            }
+                            return Ok(Some(command_options.combined_command.to_string()));
                         }
                         KeyCode::Left => {
                             command_options.cmdline_position =

src/ui.rs

@@ -9,7 +9,7 @@ use tracing::instrument;
 use tracing::Level;
 use tui::{
     backend::Backend,
-    layout::{Constraint, Direction, Layout, Rect},
+    layout::{Alignment, Constraint, Direction, Layout, Rect},
     widgets::{Block, Borders, Paragraph},
     Frame,
 };
@@ -32,13 +32,39 @@ pub fn draw<B: Backend>(f: &mut Frame<B>, app: &App) {
 
     event!(Level::INFO, "Rendering orig");
     // lazy_render_rope_slice(chunks[0], render_states.stdout)
-    render_states.stdout = lazy_render_rope_slice(
-        f,
-        chunks[0],
-        render_states.stdin.as_ref(),
-        app.text_orig_rope.slice(..),
-        "Output",
-    );
+
+    let stdin_title = if command_options.combined_command.is_empty() {
+        String::from("Input")
+    } else {
+        format!("Input ({})", command_options.combined_command)
+    };
+
+    render_states.stdin = if let Some(text_orig_rope) = app.text_orig_rope.as_ref() {
+        lazy_render_rope_slice(
+            f,
+            chunks[0],
+            render_states.stdin.as_ref(),
+            text_orig_rope.slice(..),
+            stdin_title.as_str(),
+        )
+    } else {
+        f.render_widget(
+            Paragraph::new("! No Stdin !")
+                .alignment(Alignment::Center)
+                .block(
+                    Block::default()
+                        .title(stdin_title.as_str())
+                        .borders(Borders::ALL),
+                ),
+            chunks[0],
+        );
+        Some(RenderState {
+            // TODO
+            size: chunks[0],
+            input_hash: 0,
+        })
+    };
+
     event!(Level::INFO, "Rendering textbox");
     f.render_widget(
         Paragraph::new(command_options.cmdline.as_ref()).block(
@@ -61,6 +87,11 @@ pub fn draw<B: Backend>(f: &mut Frame<B>, app: &App) {
     // Render the output in the outpout region
     if let Some(ref command_result) = command_options.command_result {
         ui_output(f, chunks[1], &mut render_states, command_result);
+    } else {
+        f.render_widget(
+            Block::default().title("Output").borders(Borders::ALL),
+            chunks[1],
+        )
     }
 
     f.set_cursor(
@@ -131,7 +162,7 @@ fn lazy_render_rope_slice<'a, B: Backend>(
     output: Rect,
     previous_state: Option<&RenderState>,
     data: RopeSlice<'_>,
-    block_title: &'static str,
+    block_title: &str,
 ) -> Option<RenderState> {
     let data = data
         .lines()