starting hugetop

Cargo.toml

@@ -27,6 +27,7 @@ uudoc = []
 
 feat_common_core = [
     "free",
+    "hugetop",
     "pgrep",
     "pidof",
     "pidwait",
@@ -84,6 +85,7 @@ uucore = { workspace = true }
 
 #
 free = { optional = true, version = "0.0.1", package = "uu_free", path = "src/uu/free" }
+hugetop = { optional = true, version = "0.0.1", package = "uu_hugetop", path = "src/uu/hugetop" }
 pgrep = { optional = true, version = "0.0.1", package = "uu_pgrep", path = "src/uu/pgrep" }
 pidof = { optional = true, version = "0.0.1", package = "uu_pidof", path = "src/uu/pidof" }
 pidwait = { optional = true, version = "0.0.1", package = "uu_pidwait", path = "src/uu/pidwait" }

src/uu/hugetop/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+name = "uu_hugetop"
+version = "0.0.1"
+edition = "2021"
+authors = ["uutils developers"]
+license = "MIT"
+description = "hugetop ~ (uutils) report huge page information"
+
+homepage = "https://github.com/uutils/procps"
+repository = "https://github.com/uutils/procps/tree/main/src/uu/hugetop"
+keywords = ["acl", "uutils", "cross-platform", "cli", "utility"]
+categories = ["command-line-utilities"]
+
+[dependencies]
+uucore = { workspace = true, features = ["utmpx", "uptime"] }
+clap = { workspace = true }
+libc = { workspace = true }
+nix = { workspace = true }
+prettytable-rs = { workspace = true }
+sysinfo = { workspace = true }
+chrono = { workspace = true }
+bytesize = { workspace = true }
+
+# TODO: @hz2 finish adjusting
+# for integration test of `--once`, mocking /proc etc.
+[dev-dependencies]
+assert_cmd = { workspace = true }
+predicates = { workspace = true }
+
+[lib]
+path = "src/hugetop.rs"
+
+[[bin]]
+name = "hugetop"
+path = "src/main.rs"

src/uu/hugetop/hugetop.md

@@ -0,0 +1,7 @@
+# hugetop
+
+```
+hugetop [options]
+```
+
+report huge page information

src/uu/hugetop/src/hugetop.rs

@@ -0,0 +1,28 @@
+// src/hugetop.rs
+
+use clap::{arg, crate_version, value_parser, ArgAction, Command};
+use std::{
+    fs,
+    io::{BufRead, BufReader},
+    thread::sleep,
+    time::Duration,
+};
+use uucore::{error::UResult, format_usage, help_about, help_usage};
+
+use bytesize::ByteSize;
+use chrono::Local;
+
+const ABOUT: &str = help_about!("hugetop.md");
+const USAGE: &str = help_usage!("hugetop.md");
+
+pub struct Settings {
+    delay: Option<u64>,
+    human: bool,
+    once: bool,
+    numa: bool,
+}
+
+#[uucore::main]
+pub fn uumain(args: impl uucore::Args) -> UResult<()> {
+    todo!();
+}

src/uu/hugetop/src/main.rs

@@ -0,0 +1 @@
+uucore::bin!(uu_hugetop);