Initial commit

.gitignore

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+/target
+/.idea

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "fix_parent_mtime"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "fix_parent_mtime"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

src/main.rs

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+use std::env;
+use std::path::PathBuf;
+use std::process::exit;
+
+fn main() -> std::io::Result<()> {
+    let args: Vec<String> = env::args().collect();
+    if args.len() < 3 {
+        usage("");
+    }
+
+    let root_dir = &args[1];
+    let root_path = PathBuf::from(root_dir);
+
+    if !root_path.exists() {
+        usage(format!("Path does not exists: {}", root_dir).as_str());
+    }
+
+    if !root_path.is_dir() {
+        usage(format!("Not a directory: {}", root_dir).as_str());
+    }
+
+    if let Ok(metadata) = root_path.metadata() {
+        if let Ok(time) = metadata.modified() {
+            println!("{:?}", time);
+        } else {
+            usage("Filesystem mtime not supported on this platform");
+        }
+    } else {
+        usage(format!("No access to path: {}", root_dir).as_str());
+    }
+
+    Ok(())
+}
+
+fn usage(message: &str) {
+    let app_name = env!("CARGO_PKG_NAME");
+    if !message.is_empty() {
+        eprintln!("{}", message);
+    }
+    eprintln!("Usage: {} path", app_name);
+    exit(1);
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    const TEST_DIR: &str = "test_folder";
+
+    fn prepare(dir: &str) {
+        let test_dir = PathBuf::from(dir);
+        let cur_dir = env::current_dir().unwrap();
+        let root_dir = cur_dir.join(&test_dir);
+        dbg!(test_dir);
+        dbg!(cur_dir);
+        dbg!(root_dir);
+    }
+
+    #[test]
+    fn test_metadata() {
+        prepare(TEST_DIR);
+        assert!(true);
+    }
+}