trident_config/
utils.rs

1use crate::constants::TRIDENT_TOML;
2use crate::Error;
3
4use anyhow::Context;
5use fehler::throw;
6use std::env;
7use std::path::Path;
8use std::path::PathBuf;
9
10pub(crate) fn resolve_path(filename: &str) -> PathBuf {
11    let path = Path::new(filename);
12    if path.is_absolute() {
13        path.to_path_buf()
14    } else {
15        discover_root()
16            .map(|cwd| cwd.join(path))
17            .unwrap_or_else(|_| panic!("Failed to resolve relative path: {}", path.display()))
18    }
19}
20
21/// Tries to find the root directory with the `Trident.toml` file.
22/// Throws an error when there is no directory with the `Trident.toml` file
23pub fn discover_root() -> Result<PathBuf, Error> {
24    let current_dir = env::current_dir()?;
25    let mut dir = Some(current_dir.as_path());
26    while let Some(cwd) = dir {
27        for file in std::fs::read_dir(cwd)
28            .with_context(|| format!("Error reading the directory with path: {}", cwd.display()))?
29        {
30            let path = file
31                .with_context(|| {
32                    format!("Error reading the directory with path: {}", cwd.display())
33                })?
34                .path();
35            if let Some(filename) = path.file_name() {
36                if filename.to_str() == Some(TRIDENT_TOML) {
37                    return Ok(PathBuf::from(cwd));
38                }
39            }
40        }
41        dir = cwd.parent();
42    }
43    throw!(Error::BadWorkspace)
44}
trident_config/utils.rs

trident_config/
utils.rs
