feat(bin/oli): support tee

bin/oli/src/commands/mod.rs

@@ -24,6 +24,7 @@ pub mod ls;
 pub mod mv;
 pub mod rm;
 pub mod stat;
+pub mod tee;
 
 #[derive(Debug, clap::Subcommand)]
 pub enum OliSubcommand {
@@ -34,6 +35,7 @@ pub enum OliSubcommand {
     Rm(rm::RmCmd),
     Stat(stat::StatCmd),
     Mv(mv::MoveCmd),
+    Tee(tee::TeeCmd),
 }
 
 impl OliSubcommand {
@@ -46,6 +48,7 @@ impl OliSubcommand {
             Self::Rm(cmd) => cmd.run(),
             Self::Stat(cmd) => cmd.run(),
             Self::Mv(cmd) => cmd.run(),
+            Self::Tee(cmd) => cmd.run(),
         }
     }
 }

bin/oli/src/commands/tee.rs

@@ -0,0 +1,82 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+use crate::config::Config;
+use crate::make_tokio_runtime;
+use crate::params::config::ConfigParams;
+use anyhow::Result;
+use futures::AsyncWriteExt;
+use tokio::io::AsyncReadExt as TokioAsyncReadExt;
+use tokio::io::AsyncWriteExt as TokioAsyncWriteExt;
+#[derive(Debug, clap::Parser)]
+#[command(
+    name = "tee",
+    about = "Read from standard input and write to destination and stdout",
+    disable_version_flag = true
+)]
+pub struct TeeCmd {
+    #[command(flatten)]
+    pub config_params: ConfigParams,
+    #[arg()]
+    pub destination: String,
+
+    #[arg(short, long, help = "Append to the given FILEs, do not overwrite")]
+    pub append: bool,
+}
+
+impl TeeCmd {
+    pub fn run(self) -> Result<()> {
+        make_tokio_runtime(1).block_on(self.do_run())
+    }
+
+    async fn do_run(self) -> Result<()> {
+        let cfg = Config::load(&self.config_params.config)?;
+
+        let (dst_op, dst_path) = cfg.parse_location(&self.destination)?;
+
+        let mut writer = if self.append {
+            dst_op
+                .writer_with(&dst_path)
+                .append(true)
+                .await?
+                .into_futures_async_write()
+        } else {
+            dst_op.writer(&dst_path).await?.into_futures_async_write()
+        };
+        let mut stdout = tokio::io::stdout();
+
+        let mut buf = vec![0; 8 * 1024 * 1024]; // 8MB buffer
+
+        let mut stdin = tokio::io::stdin();
+        loop {
+            let n = stdin.read(&mut buf).await?;
+            if n == 0 {
+                break;
+            }
+
+            // Write to destination
+            writer.write_all(&buf[..n]).await?;
+            // Write to stdout
+            stdout.write_all(&buf[..n]).await?;
+        }
+
+        writer.close().await?;
+        stdout.flush().await?;
+
+        Ok(())
+    }
+}

bin/oli/tests/integration/main.rs

@@ -26,5 +26,6 @@ mod ls;
 mod mv;
 mod rm;
 mod stat;
+mod tee;
 
 pub mod test_utils;

bin/oli/tests/integration/tee.rs

@@ -0,0 +1,168 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+use crate::test_utils::*;
+use anyhow::Result;
+use std::fs;
+use std::io::Write;
+use tempfile::TempDir;
+
+#[tokio::test]
+async fn test_tee_destination_already_exists() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let dest_path = temp_dir.path().join("dest.txt");
+
+    let source_content = "Source content";
+    let initial_dest_content = "Initial dest content";
+
+    fs::write(&dest_path, initial_dest_content)?;
+
+    let mut cmd = oli();
+    cmd.arg("tee").arg(dest_path.to_str().unwrap());
+
+    cmd.stdin(std::process::Stdio::piped());
+    cmd.stdout(std::process::Stdio::piped());
+    let mut child = cmd.spawn()?;
+    let mut stdin = child.stdin.take().expect("Failed to open stdin");
+
+    let content_to_write = source_content.to_string();
+    std::thread::spawn(move || {
+        stdin
+            .write_all(content_to_write.as_bytes())
+            .expect("Failed to write to stdin");
+    });
+
+    let output = child.wait_with_output()?;
+    assert!(output.status.success());
+
+    let stdout_output = String::from_utf8(output.stdout.clone())?;
+    assert_eq!(stdout_output, source_content);
+    let dest_content_after_tee = fs::read_to_string(&dest_path)?;
+    assert_eq!(dest_content_after_tee, source_content);
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn test_tee_stdin() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let dest_path = temp_dir.path().join("dest_stdin.txt");
+
+    let test_content = "Hello from stdin!";
+
+    let mut cmd = oli();
+    cmd.arg("tee").arg(&dest_path);
+
+    cmd.stdin(std::process::Stdio::piped());
+    cmd.stdout(std::process::Stdio::piped());
+    let mut child = cmd.spawn()?;
+    let mut stdin = child.stdin.take().expect("Failed to open stdin");
+
+    let content_to_write = test_content.to_string();
+    std::thread::spawn(move || {
+        stdin
+            .write_all(content_to_write.as_bytes())
+            .expect("Failed to write to stdin");
+    });
+
+    let output = child.wait_with_output()?;
+
+    assert!(output.status.success());
+
+    let stdout_output = String::from_utf8(output.stdout.clone())?;
+    assert_eq!(stdout_output, test_content);
+    let dest_content = fs::read_to_string(&dest_path)?;
+    assert_eq!(dest_content, test_content);
+
+    Ok(())
+}
+
+#[test]
+fn test_tee_non_existing_file() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let dst_path = temp_dir.path().join("non_existing_file.txt");
+    let dst_path_str = dst_path.as_os_str().to_str().unwrap();
+
+    let mut cmd: assert_cmd::Command = std::process::Command::cargo_bin("oli")?.into();
+    cmd.args(["tee", dst_path_str]);
+    cmd.write_stdin("Hello, world!");
+    cmd.assert().success();
+
+    let content = fs::read_to_string(dst_path)?;
+    assert_eq!(content, "Hello, world!");
+
+    Ok(())
+}
+
+#[test]
+fn test_tee_append_succeed() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let dst_path = temp_dir.path().join("test_append.txt");
+    let dst_path_str = dst_path.as_os_str().to_str().unwrap();
+
+    // Initial content
+    fs::write(&dst_path, "Hello, ")?;
+
+    let mut cmd: assert_cmd::Command = std::process::Command::cargo_bin("oli")?.into();
+    cmd.args(["tee", "-a", dst_path_str]);
+    cmd.write_stdin("world!");
+    cmd.assert().success();
+
+    let content = fs::read_to_string(dst_path)?;
+    assert_eq!(content, "Hello, world!");
+
+    Ok(())
+}
+
+#[test]
+fn test_tee_append_file_not_found() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let file_path = temp_dir.path().join("test_append_not_found.txt");
+    let file_path_str = file_path.to_str().unwrap();
+
+    let mut cmd: assert_cmd::Command = std::process::Command::cargo_bin("oli")?.into();
+    cmd.arg("tee")
+        .arg("-a")
+        .arg(file_path_str)
+        .write_stdin("append data")
+        .assert()
+        .success();
+
+    let content = fs::read_to_string(file_path)?;
+    assert_eq!(content, "append data");
+
+    Ok(())
+}
+
+#[test]
+fn test_tee_overwrite_existing_file() -> Result<()> {
+    let temp_dir = TempDir::new()?;
+    let file_path = temp_dir.path().join("test_overwrite.txt");
+    let file_path_str = file_path.to_str().unwrap();
+
+    // Create an existing file with some content
+    fs::write(&file_path, "initial data")?;
+
+    let mut cmd: assert_cmd::Command = std::process::Command::cargo_bin("oli")?.into();
+    cmd.arg("tee").arg(file_path_str).write_stdin("new data");
+    cmd.assert().success();
+
+    let content = fs::read_to_string(file_path)?;
+    assert_eq!(content, "new data");
+
+    Ok(())
+}