cbor_cli/
files.rs

1use std::path::Path;
2
3/// Get a list of file paths that are not existing files.
4/// Will not check for the existence of directories.
5pub fn get_missing_files(input_paths: &[std::path::PathBuf]) -> Vec<std::path::PathBuf> {
6  let mut missing_files = Vec::new();
7  for input_path in input_paths {
8    if !input_path.is_file() {
9      missing_files.push(input_path.clone());
10    }
11  }
12  missing_files
13}
14
15pub fn get_format_by_file_extension(input_path: &Path) -> Option<String> {
16  input_path
17    .extension()
18    .and_then(|e| e.to_str())
19    .and_then(|e| match e {
20      "json" => Some("json".to_string()),
21      "yaml" | "yml" => Some("yaml".to_string()),
22      "toml" => Some("toml".to_string()),
23      _ => None,
24    })
25}
26
27#[cfg(test)]
28mod tests {
29  use super::*;
30
31  #[test]
32  fn test_get_missing_files() {
33    let dir = tempfile::tempdir().unwrap();
34    let existing = dir.path().join("exists.txt");
35    std::fs::write(&existing, b"data").unwrap();
36
37    let nonexistent = dir.path().join("nope.txt");
38
39    let input = [existing.clone(), nonexistent.clone()];
40    let missing = get_missing_files(&input);
41    assert_eq!(missing, vec![nonexistent]);
42  }
43
44  #[test]
45  fn test_get_missing_files_all_exist() {
46    let dir = tempfile::tempdir().unwrap();
47    let a = dir.path().join("a.txt");
48    let b = dir.path().join("b.txt");
49    std::fs::write(&a, b"x").unwrap();
50    std::fs::write(&b, b"x").unwrap();
51
52    let input = [a, b];
53    let missing = get_missing_files(&input);
54    assert!(missing.is_empty());
55  }
56
57  #[test]
58  fn test_get_format_by_file_extension() {
59    let cases = [
60      ("foo.json", "json"),
61      ("bar.yaml", "yaml"),
62      ("bar.yml", "yaml"),
63      ("baz.toml", "toml"),
64    ];
65    for (path, expected) in cases {
66      let result = get_format_by_file_extension(Path::new(path));
67      assert_eq!(result.as_deref(), Some(expected), "path: {path}");
68    }
69
70    assert_eq!(get_format_by_file_extension(Path::new("noext")), None);
71    assert_eq!(get_format_by_file_extension(Path::new("bad.ext")), None);
72  }
73}
cbor_cli/files.rs

cbor_cli/
files.rs
