feat: add runtime

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rust_util"
-version = "0.6.35"
+version = "0.6.36"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "Hatter's Rust Util"

src/lib.rs

@@ -20,6 +20,7 @@ pub mod util_git;
 #[cfg(feature = "use_clap")]
 pub mod util_clap;
 pub mod util_tlv;
+pub mod util_runtime;
 
 /// iff!(condition, result_when_true, result_when_false)
 #[macro_export] macro_rules! iff {
@@ -47,6 +48,7 @@ pub mod util_tlv;
 #[macro_export] macro_rules! failure_and_exit {
     ($($arg:tt)+) => ( {
         rust_util::util_msg::print_error(&format!($($arg)+));
+        rsut_util::util_runtime::register_callback();
         std::process::exit(-1);
     } )
 }

src/util_clap.rs

@@ -16,6 +16,7 @@ pub trait DefaultCommand {
 }
 
 pub struct DefaultCommandImpl;
+
 impl DefaultCommand for DefaultCommandImpl {
     fn process_command<'a>(&self, app: App<'a, 'a>) -> App<'a, 'a> {
         app.arg(Arg::with_name("verbose").long("verbose").short("v").multiple(true).help("Show verbose info"))
@@ -40,7 +41,7 @@ impl CommandExecutor {
     }
 
     pub fn new(default_cmd: Option<Box<dyn DefaultCommand>>) -> Self {
-        CommandExecutor{
+        CommandExecutor {
             default_cmd,
             commands: Vec::new(),
         }
@@ -77,18 +78,25 @@ impl CommandExecutor {
             if let Some(sub_cmd_matches) = matches.subcommand_matches(command.name()) {
                 match command.run(&matches, sub_cmd_matches)? {
                     None => return Ok(()),
-                    Some(code) => process::exit(code),
+                    Some(code) => {
+                        crate::util_runtime::invoke_callbacks();
+                        process::exit(code);
+                    }
                 }
             }
         }
         match &self.default_cmd {
             None => {
                 util_msg::print_error("No default command, please try help (--help)");
+                crate::util_runtime::invoke_callbacks();
                 process::exit(1);
-            },
+            }
             Some(default_cmd) => match default_cmd.run(&matches)? {
                 None => return Ok(()),
-                Some(code) => process::exit(code),
+                Some(code) => {
+                    crate::util_runtime::invoke_callbacks();
+                    process::exit(code);
+                }
             },
         }
     }

src/util_cmd.rs

@@ -1,6 +1,6 @@
 use std::io::{self, Error, ErrorKind};
 use std::process::{Command, ExitStatus, Output};
-use crate::util_msg::{print_debug, print_error, MessageType};
+use crate::util_msg::{print_debug, print_error, MessageType, print_message};
 
 pub fn run_command_or_exit(cmd: &str, args: &[&str]) -> Output {
     let mut c = Command::new(cmd);
@@ -12,11 +12,21 @@ pub fn run_command_or_exit(cmd: &str, args: &[&str]) -> Output {
     match output {
         Err(e) => {
             print_error(&format!("Run command: {:?}, failed: {}", c, e));
+            crate::util_runtime::invoke_callbacks();
             std::process::exit(-1);
-        },
+        }
         Ok(output) => {
             if !output.status.success() {
-                print_error(&format!(r##"Run command failed, code: {:?}
+                print_output(MessageType::ERROR, &output);
+            }
+            output
+        }
+    }
+}
+
+pub fn print_output(message_type: MessageType, output: &Output) {
+    crate::util_msg::when(message_type, || {
+        print_message(message_type, &format!(r##"Run command failed, code: {:?}
 -----std out---------------------------------------------------------------
 {}
 -----std err---------------------------------------------------------------
@@ -25,10 +35,7 @@ pub fn run_command_or_exit(cmd: &str, args: &[&str]) -> Output {
                                              output.status.code(),
                                              String::from_utf8_lossy(&output.stdout),
                                              String::from_utf8_lossy(&output.stderr)));
-            }
-            output
-        }
-    }
+    });
 }
 
 pub fn run_command_and_wait(cmd: &mut Command) -> io::Result<ExitStatus> {

src/util_os.rs

@@ -1,3 +1,4 @@
+use std::path::PathBuf;
 
 pub fn is_macos() -> bool {
     cfg!(target_os = "macos")
@@ -10,3 +11,9 @@ pub fn is_linux() -> bool {
 pub fn is_macos_or_linux() -> bool {
     is_macos() || is_linux()
 }
+
+pub fn get_full_work_dir() -> Option<String> {
+    PathBuf::from(".").canonicalize().ok().map(|p| {
+        p.to_str().map(ToString::to_string)
+    }).flatten()
+}

src/util_runtime.rs

@@ -0,0 +1,24 @@
+use std::sync::Mutex;
+use crate::util_msg::MessageType;
+
+lazy_static! {
+    static ref EXIT_CALLBACK: Mutex<Vec<Box<dyn Fn() -> () + Send + 'static>>> = Mutex::new(vec![]);
+}
+
+pub fn register_callback<F>(f: F) where F: Fn() -> () + Send + 'static {
+    let mut exit_callbacks = EXIT_CALLBACK.lock().unwrap();
+    exit_callbacks.push(Box::new(f));
+}
+
+pub fn invoke_callbacks() {
+    let mut exit_callbacks = EXIT_CALLBACK.lock().unwrap();
+    let total = exit_callbacks.len();
+    let mut index = 0;
+    while exit_callbacks.len() > 0 {
+        crate::util_msg::when(MessageType::DEBUG, || {
+            crate::util_msg::print_debug(&format!("Running exit callbacks: {} of {}", index, total));
+        });
+        exit_callbacks.remove(0)();
+        index += 1;
+    }
+}