Merge commit 'fec26926a8' as 'tokio-tar'

tokio-tar/examples/extract_file.rs

@@ -0,0 +1,28 @@
+//! An example of extracting a file in an archive.
+//!
+//! Takes a tarball on standard input, looks for an entry with a listed file
+//! name as the first argument provided, and then prints the contents of that
+//! file to stdout.
+
+extern crate tokio_tar as async_tar;
+
+use std::{env::args_os, path::Path};
+use tokio::io::{copy, stdin, stdout};
+use tokio_stream::*;
+
+use async_tar::Archive;
+
+fn main() {
+    tokio::runtime::Runtime::new().unwrap().block_on(async {
+        let first_arg = args_os().nth(1).unwrap();
+        let filename = Path::new(&first_arg);
+        let mut ar = Archive::new(stdin());
+        let mut entries = ar.entries().unwrap();
+        while let Some(file) = entries.next().await {
+            let mut f = file.unwrap();
+            if f.path().unwrap() == filename {
+                copy(&mut f, &mut stdout()).await.unwrap();
+            }
+        }
+    });
+}