feat: v0.6.51

CNAME

@@ -0,0 +1 @@
+rust-util.ruststack.org

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rust_util"
-version = "0.6.37"
+version = "0.6.51"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "Hatter's Rust Util"

_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-cayman

demo/test_clap/src/main.rs

@@ -13,6 +13,12 @@ impl Command for TestCommand {
 
     fn run(&self, _arg_matches: &ArgMatches, _: &ArgMatches) -> CommandError {
         println!("hello test!");
+        let a: Option<String> = None;
+        let b = move || -> rust_util::XResult<String> {
+            Ok(rust_util::opt_value_result!(a, "test: {}", 1))
+        };
+        let c = b();
+        println!("{:?}", c);
         Ok(None)
     }
 }

examples/log.rs

@@ -1,9 +1,22 @@
 #[macro_use] extern crate rust_util;
 
+use std::sync::mpsc::channel;
+use std::thread;
 use rust_util::{XResult, SimpleError};
+use rust_util::util_msg::{set_logger_sender, set_logger_std_out};
 
 // cargo run --example log
 fn main() -> XResult<()> {
+    let (sender, receiver) = channel::<String>();
+    set_logger_sender(sender);
+
+    let _t = thread::spawn(move || {
+        loop {
+            let msg = receiver.recv();
+            println!("[RECV]: {:?}", msg)
+        }
+    });
+
     std::env::set_var("LOGGER_LEVEL", "*");
     println!(r##"env LOGGER_LEVEL set to:
 debug or *
@@ -20,6 +33,11 @@ error or ^"##);
 
     println!("{:?}", test_opt_result());
 
+    set_logger_std_out(false);
+    information!("Std err!");
+    warning!("Std err!");
+    set_logger_std_out(true);
+
     simple_error!("helloworld {}", 1)
 }
 

src/lib.rs

@@ -40,6 +40,12 @@ pub mod util_runtime;
 #[macro_export] macro_rules! failure {
     ($($arg:tt)+) => ( rust_util::util_msg::print_error(&format!($($arg)+)); )
 }
+#[macro_export] macro_rules! println_ex {
+    ($($arg:tt)+) => ( rust_util::util_msg::print_ex(&format!($($arg)+), true); )
+}
+#[macro_export] macro_rules! print_ex {
+    ($($arg:tt)+) => ( rust_util::util_msg::print_ex(&format!($($arg)+), false); )
+}
 #[macro_export] macro_rules! debugging {
     ($($arg:tt)+) => ( rust_util::util_msg::when(rust_util::util_msg::MessageType::DEBUG, || {
         rust_util::util_msg::print_debug(&format!($($arg)+))
@@ -48,7 +54,7 @@ pub mod util_runtime;
 #[macro_export] macro_rules! failure_and_exit {
     ($($arg:tt)+) => ( {
         rust_util::util_msg::print_error(&format!($($arg)+));
-        rsut_util::util_runtime::register_callback();
+        rust_util::util_runtime::invoke_callbacks();
         std::process::exit(-1);
     } )
 }
@@ -66,6 +72,17 @@ pub fn new_box_ioerror(m: &str) -> Box<dyn Error> {
     Box::new(IoError::new(ErrorKind::Other, m))
 }
 
+#[macro_export] macro_rules! opt_value_result {
+    ($ex: expr, $($arg:tt)+) => (
+        match $ex {
+            Some(o) => o,
+            None => return Err(rust_util::SimpleError::new(
+                format!("{}, file: {}, line: {}", format!($($arg)+), file!(), line!())
+            ).into()),
+        }
+    )
+}
+
 #[macro_export] macro_rules! opt_result {
     ($ex: expr, $($arg:tt)+) => (
         match $ex {

src/util_env.rs

@@ -1,19 +1,31 @@
 use std::env;
 
 pub fn is_env_on(var: &str) -> bool {
-    env::var(var).ok().map(|val| is_on(&val)).unwrap_or(false)
+    env_var(var).map(|val| is_on(&val)).unwrap_or(false)
 }
 
 pub fn is_env_off(var: &str) -> bool {
-    env::var(var).ok().map(|val| is_off(&val)).unwrap_or(false)
+    env_var(var).map(|val| is_off(&val)).unwrap_or(false)
 }
 
 pub fn is_on(val: &str) -> bool {
     let lower_val = val.to_lowercase();
-    vec!["true", "yes", "1"].iter().any(|x| *x == lower_val)
+    ["true", "yes", "1"].iter().any(|x| *x == lower_val)
 }
 
 pub fn is_off(val: &str) -> bool {
     let lower_val = val.to_lowercase();
-    vec!["false", "no", "0"].iter().any(|x| *x == lower_val)
+    ["false", "no", "0"].iter().any(|x| *x == lower_val)
+}
+
+pub fn env_var(var: &str) -> Option<String> {
+    let var_from_env = env::var(var).ok();
+    if var_from_env.is_some() {
+        return var_from_env;
+    }
+    let var_content = crate::util_file::read_file_content(&format!("~/.config/envs/{}", var));
+    if let Ok(var_content) = var_content {
+        return Some(var_content.trim().to_string());
+    }
+    None
 }

src/util_file.rs

@@ -10,7 +10,7 @@ pub struct JoinFilesReader {
 }
 
 fn open_file_as_lines(f: &str) -> XResult<Lines<BufReader<File>>> {
-    let f = File::open(&f)?;
+    let f = File::open(f)?;
     let br = BufReader::new(f);
     use std::io::BufRead;
     Ok(br.lines())
@@ -191,7 +191,7 @@ fn walk_dir_with_depth_check<FError, FProcess, FFilter>(depth: &mut u32, dir: &P
     let read_dir = match dir.read_dir() {
         Ok(rd) => rd,
         Err(err) => {
-            func_walk_error(&dir, Box::new(err));
+            func_walk_error(dir, Box::new(err));
             return Ok(());
         }
     };
@@ -199,7 +199,7 @@ fn walk_dir_with_depth_check<FError, FProcess, FFilter>(depth: &mut u32, dir: &P
         let dir_entry = match dir_entry_item {
             Ok(item) => item,
             Err(err) => {
-                func_walk_error(&dir, Box::new(err));
+                func_walk_error(dir, Box::new(err));
                 continue; // Ok?
             }
         };
@@ -207,11 +207,11 @@ fn walk_dir_with_depth_check<FError, FProcess, FFilter>(depth: &mut u32, dir: &P
         let path_buf = dir_entry.path();
         let sub_dir = path_buf.as_path();
         if sub_dir.is_file() {
-            func_process_file(&sub_dir);
-        } else if sub_dir.is_dir() && func_filter_dir(&sub_dir) {
+            func_process_file(sub_dir);
+        } else if sub_dir.is_dir() && func_filter_dir(sub_dir) {
             *depth += 1;
-            if let Err(err) = walk_dir_with_depth_check(depth, &sub_dir, func_walk_error, func_process_file, func_filter_dir) {
-                func_walk_error(&sub_dir, err);
+            if let Err(err) = walk_dir_with_depth_check(depth, sub_dir, func_walk_error, func_process_file, func_filter_dir) {
+                func_walk_error(sub_dir, err);
             }
             *depth -= 1;
         } // should process else ? not file, dir

src/util_git.rs

@@ -1,5 +1,6 @@
 use std::process::Command;
-use crate::{XResult, util_msg, util_cmd};
+
+use crate::{util_cmd, util_msg, XResult};
 
 const LANG: &str = "LANG";
 const EN_US: &str = "en_US";
@@ -75,7 +76,7 @@ pub fn git_add(working_dir: Option<&str>, files: &[String]) {
     let mut cmd = new_git_command(working_dir);
     cmd.arg("add");
     for f in files {
-        cmd.arg(&f);
+        cmd.arg(f);
     }
     util_msg::print_info(&format!("Exec: {:?}", cmd));
     if let Err(e) = util_cmd::run_command_and_wait(&mut cmd) {
@@ -89,7 +90,7 @@ pub fn git_commit(working_dir: Option<&str>, message: &str, files: &[String]) {
     cmd.arg("-m");
     cmd.arg(message);
     for f in files {
-        cmd.arg(&f);
+        cmd.arg(f);
     }
     util_msg::print_info(&format!("Exec: {:?}", cmd));
     if let Err(e) = util_cmd::run_command_and_wait(&mut cmd) {
@@ -100,19 +101,19 @@ pub fn git_commit(working_dir: Option<&str>, message: &str, files: &[String]) {
 fn parse_git_status_change(git_status: &str) -> XResult<GitStatusChange> {
     let mut git_status_change: GitStatusChange = Default::default();
     for ln in git_status.lines() {
-        if ln.starts_with("\t") {
+        if ln.starts_with('\t') {
             let ln = ln.trim();
-            if ln.starts_with("new file:") {
-                let f = ln["new file:".len()..].trim();
+            if let Some(new_file) = ln.strip_prefix("new file:") {
+                let f = new_file.trim();
                 git_status_change.added.push(f.to_owned());
-            } else if ln.starts_with("deleted:") {
-                let f = ln["deleted:".len()..].trim();
+            } else if let Some(deleted) = ln.strip_prefix("deleted:") {
+                let f = deleted.trim();
                 git_status_change.deleted.push(f.to_owned());
-            } else if ln.starts_with("modified:") {
-                let f = ln["modified:".len()..].trim();
+            } else if let Some(modified) = ln.strip_prefix("modified:") {
+                let f = modified.trim();
                 git_status_change.modified.push(f.to_owned());
-            } else if ln.starts_with("renamed:") {
-                let f = ln["renamed:".len()..].trim();
+            } else if let Some(renamed) = ln.strip_prefix("renamed:") {
+                let f = renamed.trim();
                 let mut fs = f.split("->");
                 let fa = fs.next();
                 let fb = fs.next();

src/util_io.rs

@@ -1,11 +1,11 @@
-use std::io::{self, Write, ErrorKind, prelude::*};
 use std::fs::File;
-use std::time::{SystemTime, Duration};
+use std::io::{self, ErrorKind, prelude::*, Write};
+use std::time::{Duration, SystemTime};
 
 use crate::{SimpleError, XResult};
-use crate::util_size;
-use crate::util_msg;
 use crate::util_file;
+use crate::util_msg;
+use crate::util_size;
 
 pub const DEFAULT_BUF_SIZE: usize = 8 * 1024;
 
@@ -79,7 +79,7 @@ pub fn get_read_stdin_or_file(file: &str) -> XResult<Box<dyn Read>> {
     if file.is_empty() {
         Ok(Box::new(io::stdin()))
     } else {
-        match File::open(&util_file::resolve_file_path(file)) {
+        match File::open(util_file::resolve_file_path(file)) {
             Ok(f) => Ok(Box::new(f)),
             Err(err) => Err(SimpleError::new(format!("Open file {}, erorr: {}", file, err)).into()),
         }
@@ -145,7 +145,7 @@ pub fn print_status_last_line(head: &str, total: i64, written: i64, print_status
     }
     let cost_as_secs = cost.as_secs();
     if cost_as_secs > 0 {
-        download_speed = format!("{}/s", util_size::get_display_size((written / (cost_as_secs as i64)) as i64));
+        download_speed = format!("{}/s", util_size::get_display_size(written / (cost_as_secs as i64)));
     }
     if total > 0 {
         util_msg::print_lastline(&format!("{}, Total: {}, Finished: {}, Speed: {}",

src/util_msg.rs

@@ -1,13 +1,30 @@
 use std::env;
 use std::io::{self, Write};
-use std::sync::{Arc, Mutex};
+use std::sync::{Arc, Mutex, RwLock};
+use std::sync::mpsc::Sender;
 
 lazy_static! {
     pub static ref IS_ATTY: bool = is_atty();
     static ref LOGGER_LEVEL: MessageType = get_logger_level();
+    static ref LOGGER_SENDER: Arc<RwLock<Option<Sender<String>>>> = Arc::new(RwLock::new(None));
+    static ref LOGGER_TO_STDOUT: Arc<RwLock<bool>> = Arc::new(RwLock::new(true));
     static ref PRINT_MESSAGE_LOCK: Arc<Mutex<()>> = Arc::new(Mutex::new(()));
 }
 
+pub fn set_logger_sender(sender: Sender<String>) {
+    let mut logger_sender_opt = LOGGER_SENDER.write().unwrap();
+    logger_sender_opt.replace(sender);
+}
+
+pub fn set_logger_std_out(is_std_out: bool) {
+    let mut std_out = LOGGER_TO_STDOUT.write().unwrap();
+    *std_out = is_std_out;
+}
+
+pub fn get_logger_std_out() -> bool {
+    *LOGGER_TO_STDOUT.read().unwrap()
+}
+
 #[allow(clippy::upper_case_acronyms)]
 #[derive(Clone, Copy)]
 pub enum MessageType { DEBUG, INFO, OK, WARN, ERROR }
@@ -16,9 +33,9 @@ impl MessageType {
     pub fn get_u8_value(&self) -> u8 {
         match self {
             MessageType::DEBUG => 0,
-            MessageType::INFO  => 1,
-            MessageType::OK    => 2,
-            MessageType::WARN  => 3,
+            MessageType::INFO => 1,
+            MessageType::OK => 2,
+            MessageType::WARN => 3,
             MessageType::ERROR => 4,
         }
     }
@@ -26,18 +43,18 @@ impl MessageType {
 
 pub fn get_logger_level() -> MessageType {
     if let Some(logger_level) = env::var("LOGGER_LEVEL").ok()
-                                                        .or_else(|| env::var("LOGGER").ok())
-                                                        .or_else(|| env::var("LEVEL").ok()) {
+        .or_else(|| env::var("LOGGER").ok())
+        .or_else(|| env::var("LEVEL").ok()) {
         match logger_level.trim().to_lowercase().as_str() {
             "debug" | "*" => MessageType::DEBUG,
-            "info"  | "?" => MessageType::INFO,
-            "ok"    | "#" => MessageType::OK,
-            "warn"  | "!" => MessageType::WARN,
+            "info" | "?" => MessageType::INFO,
+            "ok" | "#" => MessageType::OK,
+            "warn" | "!" => MessageType::WARN,
             "error" | "^" => MessageType::ERROR,
             _ => {
                 print_message_ex(Some(term::color::YELLOW), "[WARN ]", &format!("Unknown logger level: {}, set to default INFO", logger_level));
                 MessageType::INFO
-            },
+            }
         }
     } else {
         MessageType::INFO
@@ -45,46 +62,99 @@ pub fn get_logger_level() -> MessageType {
 }
 
 pub fn is_atty() -> bool {
-    let stdout_fileno = unsafe { libc::isatty(libc::STDOUT_FILENO as i32) };
+    let stdout_fileno = unsafe { libc::isatty(libc::STDOUT_FILENO) };
     stdout_fileno != 0
 }
 
-pub fn print_color(color: Option<term::color::Color>, is_bold: bool, m: &str) {
-    match term::stdout() {
-        Some(mut t) => {
-            if *IS_ATTY {
-                if let Some(c) = color {
-                    t.fg(c).ok();
+pub fn print_color(is_std_out: bool, color: Option<term::color::Color>, is_bold: bool, m: &str) {
+    if is_std_out {
+        match term::stdout() {
+            Some(mut t) => {
+                if *IS_ATTY {
+                    if let Some(c) = color {
+                        t.fg(c).ok();
+                    }
+                    if is_bold {
+                        t.attr(term::Attr::Bold).ok();
+                    }
+                    write!(t, "{}", m).ok();
+                    t.reset().ok();
+                } else {
+                    write!(t, "{}", m).ok();
                 }
-                if is_bold {
-                    t.attr(term::Attr::Bold).ok();
-                }
-                write!(t, "{}", m).ok();
-                t.reset().ok();
-            } else {
-                write!(t, "{}", m).ok();
             }
-        },
-        None => print!("{}", m),
+            None => print!("{}", m),
+        }
+    } else {
+        match term::stderr() {
+            Some(mut t) => {
+                if *IS_ATTY {
+                    if let Some(c) = color {
+                        t.fg(c).ok();
+                    }
+                    if is_bold {
+                        t.attr(term::Attr::Bold).ok();
+                    }
+                    write!(t, "{}", m).ok();
+                    t.reset().ok();
+                } else {
+                    write!(t, "{}", m).ok();
+                }
+            }
+            None => eprint!("{}", m),
+        }
     }
 }
 
 pub fn print_color_and_flush(color: Option<term::color::Color>, is_bold: bool, m: &str) {
-    print_color(color, is_bold, m);
+    print_color(true, color, is_bold, m);
     flush_stdout();
 }
 
 pub fn print_message_ex(color: Option<term::color::Color>, h: &str, message: &str) {
+    {
+        let logger_sender_opt = LOGGER_SENDER.read().unwrap();
+        if let Some(logger_sender) = &*logger_sender_opt {
+            logger_sender.send(format!("{} {}", h, message)).ok();
+            return;
+        }
+    }
+    let is_std_out = get_logger_std_out();
     let mut lock = PRINT_MESSAGE_LOCK.lock().unwrap();
-    print_color(color, true, h);
-    println!(" {}", message);
+    print_color(is_std_out, color, true, h);
+    if is_std_out {
+        println!(" {}", message);
+    } else {
+        eprintln!(" {}", message)
+    }
     *lock = ();
 }
 
-pub fn print_ok   (message: &str) { print_message(MessageType::OK,    message); }
-pub fn print_warn (message: &str) { print_message(MessageType::WARN,  message); }
+pub fn print_ex(message: &str, new_line: bool) {
+    if get_logger_std_out() {
+        if new_line {
+            println!("{}", message)
+        } else {
+            print!("{}", message)
+        }
+    } else {
+        #[allow(clippy::collapsible_else_if)]
+        if new_line {
+            eprintln!("{}", message)
+        } else {
+            eprint!("{}", message)
+        }
+    }
+}
+
+pub fn print_ok(message: &str) { print_message(MessageType::OK, message); }
+
+pub fn print_warn(message: &str) { print_message(MessageType::WARN, message); }
+
 pub fn print_error(message: &str) { print_message(MessageType::ERROR, message); }
-pub fn print_info (message: &str) { print_message(MessageType::INFO,  message); }
+
+pub fn print_info(message: &str) { print_message(MessageType::INFO, message); }
+
 pub fn print_debug(message: &str) { print_message(MessageType::DEBUG, message); }
 
 #[inline]
@@ -93,6 +163,10 @@ pub fn is_logger_level_enabled(mt: MessageType) -> bool {
     mt.get_u8_value() >= logger_level.get_u8_value()
 }
 
+pub fn when_debug<F>(f: F) where F: Fn() {
+    when(MessageType::DEBUG, f)
+}
+
 pub fn when<F>(mt: MessageType, f: F) where F: Fn() {
     if is_logger_level_enabled(mt) {
         f();
@@ -102,10 +176,10 @@ pub fn when<F>(mt: MessageType, f: F) where F: Fn() {
 pub fn print_message(mt: MessageType, message: &str) {
     if is_logger_level_enabled(mt) {
         match mt {
-            MessageType::OK    => print_message_ex(Some(term::color::GREEN),   "[OK   ]", message),
-            MessageType::WARN  => print_message_ex(Some(term::color::YELLOW),  "[WARN ]", message),
-            MessageType::ERROR => print_message_ex(Some(term::color::RED),     "[ERROR]", message),
-            MessageType::INFO  => print_message_ex(None,                       "[INFO ]", message),
+            MessageType::OK => print_message_ex(Some(term::color::GREEN), "[OK   ]", message),
+            MessageType::WARN => print_message_ex(Some(term::color::YELLOW), "[WARN ]", message),
+            MessageType::ERROR => print_message_ex(Some(term::color::RED), "[ERROR]", message),
+            MessageType::INFO => print_message_ex(None, "[INFO ]", message),
             MessageType::DEBUG => print_message_ex(Some(term::color::MAGENTA), "[DEBUG]", message),
         }
     }
@@ -148,13 +222,13 @@ pub fn get_term_width_message(message: &str, left: usize) -> String {
         Some((w, _h)) => {
             let len = message.len();
             if w > len {
-               return message.to_string();
+                return message.to_string();
             }
             let mut s = String::new();
-            s.push_str(&message[0..find_char_boundary(&message, w - 10 - 5 - left)]);
+            s.push_str(&message[0..find_char_boundary(message, w - 10 - 5 - left)]);
             s.push_str("[...]");
-            s.push_str(&message[find_char_boundary(&message, len - 10)..]);
+            s.push_str(&message[find_char_boundary(message, len - 10)..]);
             s
-        },
+        }
     }
 }

src/util_net.rs

@@ -11,6 +11,12 @@ pub struct IpAndIpMaskMatcher {
     ip_and_ip_mask_set: HashSet<u64>,
 }
 
+impl Default for IpAndIpMaskMatcher {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl IpAndIpMaskMatcher {
     pub fn new() -> Self {
         IpAndIpMaskMatcher {
@@ -133,7 +139,7 @@ impl IpAddressMask {
                 let socket_addr_v4_octets = socket_addr_v4.ip().octets();
                 match self {
                     IpAddressMask::Ipv4(self_ipv4_octets, mask) => {
-                        let self_ipv4_u32 = ipv4_to_u32(&self_ipv4_octets);
+                        let self_ipv4_u32 = ipv4_to_u32(self_ipv4_octets);
                         let addr_ipv4_u32 = ipv4_to_u32(&socket_addr_v4_octets);
                         let mask_u32 = ipv4_mask(*mask);
                         self_ipv4_u32 & mask_u32 == addr_ipv4_u32 & mask_u32

src/util_os.rs

@@ -1,5 +1,6 @@
 use std::env;
 use std::path::PathBuf;
+
 use crate::iff;
 
 pub fn is_macos() -> bool {
@@ -19,7 +20,7 @@ pub fn get_user_home() -> Option<String> {
 }
 
 pub fn get_full_work_dir() -> Option<String> {
-    PathBuf::from(".").canonicalize().ok().map(|p| {
+    PathBuf::from(".").canonicalize().ok().and_then(|p| {
         p.to_str().map(ToString::to_string)
-    }).flatten()
+    })
 }

src/util_size.rs

@@ -13,7 +13,7 @@ pub fn parse_size(size: &str) -> XResult<i64> {
         lower_size.ends_with('b'), &lower_size[0..lower_size.len()-1], &lower_size
     );
     let parse_and_process_size = |mul: i64| -> XResult<i64> {
-        Ok((mul as f64 * no_last_b_size[0..no_last_b_size.len()-1].parse::<f64>()?) as i64)
+        Ok((mul as f64 * no_last_b_size[0..no_last_b_size.len() - 1].parse::<f64>()?) as i64)
     };
     match no_last_b_size.chars().last() {
         Some('k') => parse_and_process_size(SIZE_KB),
@@ -27,17 +27,17 @@ pub fn parse_size(size: &str) -> XResult<i64> {
 
 pub fn get_display_size(size: i64) -> String {
     if size < SIZE_KB {
-        size.to_string()
+        format!("{} {}", size, crate::iff!(size == 1, "byte", "bytes" ))
     } else if size < SIZE_MB {
-        format!("{:.*}KB", 2, (size as f64) / SIZE_KB as f64)
+        format!("{:.*}KiB", 2, (size as f64) / SIZE_KB as f64)
     } else if size < SIZE_GB {
-        format!("{:.*}MB", 2, (size as f64) / SIZE_MB as f64)
+        format!("{:.*}MiB", 2, (size as f64) / SIZE_MB as f64)
     } else if size < SIZE_TB {
-        format!("{:.*}GB", 2, (size as f64) / SIZE_GB as f64)
+        format!("{:.*}GiB", 2, (size as f64) / SIZE_GB as f64)
     } else if size < SIZE_PB {
-        format!("{:.*}TB", 2, (size as f64) / SIZE_TB as f64)
+        format!("{:.*}TiB", 2, (size as f64) / SIZE_TB as f64)
     } else {
-        format!("{:.*}PB", 2, (size as f64) / SIZE_PB as f64)
+        format!("{:.*}PiB", 2, (size as f64) / SIZE_PB as f64)
     }
 }
 
@@ -54,11 +54,11 @@ fn test_parse_size() {
 
 #[test]
 fn test_get_display_size() {
-    assert_eq!(get_display_size(0), "0");
-    assert_eq!(get_display_size(111), "111");
-    assert_eq!(get_display_size(1024), "1.00KB");
-    assert_eq!(get_display_size(1024 * 1024), "1.00MB");
-    assert_eq!(get_display_size(1024 * 1024 * 1024), "1.00GB");
-    assert_eq!(get_display_size(1024 * 1024 * 1024 * 1024), "1.00TB");
-    assert_eq!(get_display_size(1024 * 1024 * 1024 * 1024 * 1024), "1.00PB");
+    assert_eq!(get_display_size(0), "0 bytes");
+    assert_eq!(get_display_size(111), "111 bytes");
+    assert_eq!(get_display_size(1024), "1.00KiB");
+    assert_eq!(get_display_size(1024 * 1024), "1.00MiB");
+    assert_eq!(get_display_size(1024 * 1024 * 1024), "1.00GiB");
+    assert_eq!(get_display_size(1024 * 1024 * 1024 * 1024), "1.00TiB");
+    assert_eq!(get_display_size(1024 * 1024 * 1024 * 1024 * 1024), "1.00PiB");
 }

src/util_str.rs

@@ -1,29 +1,6 @@
-
 /// Split string to lines, splited by '\r', '\n' or "\r\n"
 pub fn read_str_to_lines(s: &str) -> Vec<String> {
     s.lines().map(|ln| ln.to_owned()).collect()
-    // let mut r = vec![];
-    // let mut line = String::new();
-    // let mut cs = s.chars().peekable();
-    // while let Some(c) = cs.next() {
-    //     if c == '\n' || c == '\r' {
-    //         r.push(line.clone());
-    //         line.clear();
-    //         if c == '\r' {
-    //             if let Some(nc) = cs.peek() {
-    //                 if *nc == '\n' {
-    //                     cs.next();
-    //                 }
-    //             }
-    //         }
-    //     } else {
-    //         line.push(c);
-    //     }
-    // }
-    // if !line.is_empty() {
-    //     r.push(line);
-    // }
-    // r
 }
 
 pub fn split_kv(s: &str, split: char) -> (String, String) {
@@ -61,25 +38,30 @@ fn test_read_str_to_lines() {
         let s = "";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 0);
-    } {
+    }
+    {
         let s = "\n";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 1);
-    } {
+    }
+    {
         let s = "\r";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 1);
-    } {
+    }
+    {
         let s = "\r\n";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 1);
-    } {
+    }
+    {
         let s = "aa\r\nbb";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 2);
         assert_eq!(lines[0], "aa");
         assert_eq!(lines[1], "bb");
-    } {
+    }
+    {
         let s = "aa\r\nbb\ncc";
         let lines = read_str_to_lines(s);
         assert_eq!(lines.len(), 3);

src/util_term.rs

@@ -1,23 +1,58 @@
 use std::io::{self, Write};
 
-pub const RED:    &str = "\x1B[91m";
-pub const GREEN:  &str = "\x1B[92m";
+use crate::util_msg;
+
+pub const STD_BLACK: &str = "\x1B[30m";
+pub const STD_RED: &str = "\x1B[31m";
+pub const STD_GREEN: &str = "\x1B[32m";
+pub const STD_YELLOW: &str = "\x1B[33m";
+pub const STD_BLUE: &str = "\x1B[34m";
+pub const STD_MAGENTA: &str = "\x1B[35m"; // 品红色/洋红
+pub const STD_CYAN: &str = "\x1B[36m"; // 青色
+pub const STD_WHITE: &str = "\x1B[37m";
+
+pub const BLACK: &str = "\x1B[90m";
+pub const RED: &str = "\x1B[91m";
+pub const GREEN: &str = "\x1B[92m";
 pub const YELLOW: &str = "\x1B[93m";
-pub const BOLD:   &str = "\x1B[1m";
-pub const UNDER:  &str = "\x1B[4m";
-pub const END:    &str = "\x1B[0m";
+pub const BLUE: &str = "\x1B[94m";
+pub const MAGENTA: &str = "\x1B[95m";
+pub const CYAN: &str = "\x1B[96m";
+pub const WHITE: &str = "\x1B[97m";
+
+pub const BG_STD_BLACK: &str = "\x1B[40m";
+pub const BG_STD_RED: &str = "\x1B[41m";
+pub const BG_STD_GREEN: &str = "\x1B[42m";
+pub const BG_STD_YELLOW: &str = "\x1B[43m";
+pub const BG_STD_BLUE: &str = "\x1B[44m";
+pub const BG_STD_MAGENTA: &str = "\x1B[45m";
+pub const BG_STD_CYAN: &str = "\x1B[46m";
+pub const BG_STD_WHITE: &str = "\x1B[47m";
+
+pub const BG_BLACK: &str = "\x1B[100m";
+pub const BG_RED: &str = "\x1B[101m";
+pub const BG_GREEN: &str = "\x1B[102m";
+pub const BG_YELLOW: &str = "\x1B[103m";
+pub const BG_BLUE: &str = "\x1B[104m";
+pub const BG_MAGENTA: &str = "\x1B[105m";
+pub const BG_CYAN: &str = "\x1B[106m";
+pub const BG_WHITE: &str = "\x1B[107m";
+
+pub const BOLD: &str = "\x1B[1m";
+pub const UNDER: &str = "\x1B[4m";
+pub const END: &str = "\x1B[0m";
 
 pub fn read_yes_no(hint: &str) -> bool {
     loop {
-        print!("{} (Yes/No): ", hint);
+        util_msg::print_ex(&format!("{} (Yes/No): ", hint), false);
         io::stdout().flush().ok();
         let mut buff = String::new();
         let _ = io::stdin().read_line(&mut buff).expect("Read line from stdin");
         let buff = buff.trim().to_lowercase();
-        if vec!["y", "yes"].contains(&buff.as_str()) {
+        if ["y", "yes"].contains(&buff.as_str()) {
             return true;
         }
-        if vec!["n", "no"].contains(&buff.as_str()) {
+        if ["n", "no"].contains(&buff.as_str()) {
             return false;
         }
     }

src/util_time.rs

@@ -1,11 +1,44 @@
-use std::time::{SystemTime, Duration};
+use std::time::{Duration, SystemTime};
+
+pub trait UnixEpochTime {
+    fn to_secs(&self) -> Option<u64>;
+    fn to_millis(&self) -> Option<u64>;
+    fn from_secs(secs: u64) -> Self;
+    fn from_millis(millis: u64) -> Self;
+}
+
+impl UnixEpochTime for SystemTime {
+    fn to_secs(&self) -> Option<u64> {
+        self.duration_since(SystemTime::UNIX_EPOCH).ok().map(|d| d.as_secs())
+    }
+
+    fn to_millis(&self) -> Option<u64> {
+        self.duration_since(SystemTime::UNIX_EPOCH).ok().map(|d| d.as_millis() as u64)
+    }
+
+    fn from_secs(secs: u64) -> Self {
+        SystemTime::UNIX_EPOCH + Duration::from_secs(secs)
+    }
+
+    fn from_millis(millis: u64) -> Self {
+        SystemTime::UNIX_EPOCH + Duration::from_millis(millis)
+    }
+}
 
 pub fn get_current_secs() -> u64 {
-    SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).map(|d| d.as_secs()).unwrap_or(0 /* SHOULD NOT HAPPEN */)
+    get_secs(&SystemTime::now())
 }
 
 pub fn get_current_millis() -> u128 {
-    SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).map(|d| d.as_millis()).unwrap_or(0 /* SHOULD NOT HAPPEN */)
+    get_millis(&SystemTime::now())
+}
+
+pub fn get_secs(system_time: &SystemTime) -> u64 {
+    system_time.duration_since(SystemTime::UNIX_EPOCH).map(|d| d.as_secs()).unwrap_or(0 /* SHOULD NOT HAPPEN */)
+}
+
+pub fn get_millis(system_time: &SystemTime) -> u128 {
+    system_time.duration_since(SystemTime::UNIX_EPOCH).map(|d| d.as_millis()).unwrap_or(0 /* SHOULD NOT HAPPEN */)
 }
 
 pub fn parse_duration(t: &str) -> Option<Duration> {
@@ -26,12 +59,12 @@ pub fn parse_duration(t: &str) -> Option<Duration> {
 
 #[test]
 fn test_get_current_secs() {
-    assert!(get_current_secs() != 0);
+    assert_ne!(get_current_secs(), 0);
 }
 
 #[test]
 fn test_get_current_millis() {
-    assert!(get_current_millis() != 0);
+    assert_ne!(get_current_millis(), 0);
 }
 
 #[test]
@@ -49,3 +82,14 @@ fn test_parse_duration() {
     assert_eq!(Duration::from_millis(1800000), parse_duration("0.5h").unwrap());
     assert_eq!(Duration::from_millis(24 * 3600000), parse_duration("1d").unwrap());
 }
+
+#[test]
+fn test_unix_epoch() {
+    let t = SystemTime::now();
+    let s = t.to_secs().unwrap();
+    let m = t.to_millis().unwrap();
+    let t2 = SystemTime::from_secs(s);
+    let t3 = SystemTime::from_millis(m);
+    assert_eq!(get_secs(&t), get_secs(&t2));
+    assert_eq!(get_millis(&t), get_millis(&t3));
+}