pub_just/
load_dotenv.rs

1use super::*;
2
3pub fn load_dotenv(
4  config: &Config,
5  settings: &Settings,
6  working_directory: &Path,
7) -> RunResult<'static, BTreeMap<String, String>> {
8  let dotenv_filename = config
9    .dotenv_filename
10    .as_ref()
11    .or(settings.dotenv_filename.as_ref());
12
13  let dotenv_path = config
14    .dotenv_path
15    .as_ref()
16    .or(settings.dotenv_path.as_ref());
17
18  if !settings.dotenv_load
19    && dotenv_filename.is_none()
20    && dotenv_path.is_none()
21    && !settings.dotenv_required
22  {
23    return Ok(BTreeMap::new());
24  }
25
26  if let Some(path) = dotenv_path {
27    let path = working_directory.join(path);
28    if path.is_file() {
29      return load_from_file(&path);
30    }
31  }
32
33  let filename = dotenv_filename.map_or(".env", |s| s.as_str());
34
35  for directory in working_directory.ancestors() {
36    let path = directory.join(filename);
37    if path.is_file() {
38      return load_from_file(&path);
39    }
40  }
41
42  if settings.dotenv_required {
43    Err(Error::DotenvRequired)
44  } else {
45    Ok(BTreeMap::new())
46  }
47}
48
49fn load_from_file(path: &Path) -> RunResult<'static, BTreeMap<String, String>> {
50  let iter = dotenvy::from_path_iter(path)?;
51  let mut dotenv = BTreeMap::new();
52  for result in iter {
53    let (key, value) = result?;
54    if env::var_os(&key).is_none() {
55      dotenv.insert(key, value);
56    }
57  }
58  Ok(dotenv)
59}
pub_just/load_dotenv.rs

pub_just/
load_dotenv.rs
