feat(*): 删除指定目录下面的文件1.0.0

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "rmf"
+version = "1.0.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { version = "3.1.6", features = ["derive"] }
+chrono = "0.4.19"

src/main.rs

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+use std::{path::Path, time::{self, UNIX_EPOCH}, fs};
+
+use chrono::Local;
+use clap::Parser;
+
+/// 删除指定路径下面的所有文件
+#[derive(Parser, Debug)]
+#[clap(
+    name = "rmf",
+    version = "1.0.0",
+    author = "作者: 技安 <[email protected]>",
+    about = "删除指定路径下面的所有文件, 帮助输入 `-h`",
+    long_about = None,
+    arg_required_else_help(true)
+)]
+struct Cli {
+    /// 要删除的文件上级路径
+    #[clap(short, long)]
+    path: String,
+
+    /// 保留最近文件的天数
+    #[clap(short, long, default_value = "1")]
+    days: u32,
+}
+
+fn main() {
+    let cli = Cli::parse();
+
+    let path = Path::new(&cli.path);
+    if !path.is_dir() {
+        println!("{} is not a directory", cli.path);
+        return;
+    }
+
+    // 开始时间
+    let start = time::Instant::now();
+
+    // 现在的时间
+    let timestamp = if cli.days > 0 {
+        Local::today().and_hms(0, 0, 0).timestamp() - ((cli.days as i64 - 1) * 24 * 60 * 60)
+    } else {
+        Local::now().timestamp() + 100
+    };
+
+    for dir_entry in path.read_dir()
+        .expect("Unable to read directory").
+        into_iter() {
+        if let Ok(dir_entry) = dir_entry {
+            if let Ok(metadata) = dir_entry.metadata() {
+                if let Ok(time) = metadata.modified() {
+                    if let Ok(time) = time.duration_since(UNIX_EPOCH) {
+                        if (time.as_secs() as i64) < timestamp {
+                            if metadata.is_file() {
+                                fs::remove_file(dir_entry.path()).expect("Unable to remove file");
+                            } else if metadata.is_dir() {
+                                fs::remove_dir_all(dir_entry.path()).expect("Unable to remove directory");
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // 用时
+    let elapsed = start.elapsed();
+    println!("duration: {:?}", elapsed);
+}