Change The Root Directories Of A File Path In Rust

May 2024

This is how I replace the starting portion of a rust PathBuf:

---
[dependencies]
anyhow = "1.0.98"
---

use anyhow::Result;
use std::path::PathBuf;

fn main() -> Result<()> {
  let source = PathBuf::from("/some/path/to/a/file.txt");
  let find = PathBuf::from("/some/path");
  let replacement = PathBuf::from("/another/method");
  let result = replace_path_root(&source, &find, &replacement)?;
  println!("{}", result.display());
  Ok(())
}

pub fn replace_path_root(
  source: &PathBuf, 
  find: &PathBuf, 
  replacement: &PathBuf
) -> Result<PathBuf> {
  let stripped_path = source.strip_prefix(find)?;
  let new_path = replacement.clone().join(stripped_path);
  Ok(new_path)
}

Output:

/another/method/to/a/file.txt

TODO

☐

Check how relative path stuff works and replacing absolute paths with relative paths.

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