move cli to top level

cli/src/util/machine.rs

@@ -0,0 +1,78 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+use crate::util::errors;
+use std::path::Path;
+use sysinfo::{Pid, PidExt, ProcessExt, System, SystemExt};
+
+pub fn process_at_path_exists(pid: u32, name: &Path) -> bool {
+    // TODO https://docs.rs/sysinfo/latest/sysinfo/index.html#usage
+    let mut sys = System::new_all();
+    sys.refresh_processes();
+
+    let name_str = format!("{}", name.display());
+    match sys.process(Pid::from_u32(pid)) {
+        Some(process) => {
+            for cmd in process.cmd() {
+                if cmd.contains(&name_str) {
+                    return true;
+                }
+            }
+        }
+        None => {
+            return false;
+        }
+    }
+
+    false
+}
+pub fn process_exists(pid: u32) -> bool {
+    let mut sys = System::new_all();
+    sys.refresh_processes();
+    sys.process(Pid::from_u32(pid)).is_some()
+}
+
+pub fn find_running_process(name: &Path) -> Option<u32> {
+    // TODO https://docs.rs/sysinfo/latest/sysinfo/index.html#usage
+    let mut sys = System::new_all();
+    sys.refresh_processes();
+
+    let name_str = format!("{}", name.display());
+
+    for (pid, process) in sys.processes() {
+        for cmd in process.cmd() {
+            if cmd.contains(&name_str) {
+                return Some(pid.as_u32());
+            }
+        }
+    }
+    None
+}
+
+#[cfg(not(target_family = "unix"))]
+pub async fn set_executable_permission<P: AsRef<std::path::Path>>(
+    _file: P,
+) -> Result<(), errors::WrappedError> {
+    Ok(())
+}
+
+#[cfg(target_family = "unix")]
+pub async fn set_executable_permission<P: AsRef<std::path::Path>>(
+    file: P,
+) -> Result<(), errors::WrappedError> {
+    use std::os::unix::prelude::PermissionsExt;
+
+    let mut permissions = tokio::fs::metadata(&file)
+        .await
+        .map_err(|e| errors::wrap(e, "failed to read executable file metadata"))?
+        .permissions();
+
+    permissions.set_mode(0o750);
+
+    tokio::fs::set_permissions(&file, permissions)
+        .await
+        .map_err(|e| errors::wrap(e, "failed to set executable permissions"))?;
+
+    Ok(())
+}