40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
use std::path::PathBuf;
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use crate::error::NotfilesError;
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/// Expand a leading `~` to the user's home directory.
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pub fn expand_tilde(path: &str) -> Result<PathBuf, NotfilesError> {
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if path == "~" {
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return dirs::home_dir().ok_or_else(|| NotfilesError::Path("cannot determine home directory".into()));
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}
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if let Some(rest) = path.strip_prefix("~/") {
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let home = dirs::home_dir()
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.ok_or_else(|| NotfilesError::Path("cannot determine home directory".into()))?;
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return Ok(home.join(rest));
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}
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Ok(PathBuf::from(path))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_expand_tilde_home() {
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let home = dirs::home_dir().unwrap();
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assert_eq!(expand_tilde("~").unwrap(), home);
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}
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#[test]
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fn test_expand_tilde_subpath() {
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let home = dirs::home_dir().unwrap();
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assert_eq!(expand_tilde("~/foo/bar").unwrap(), home.join("foo/bar"));
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}
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#[test]
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fn test_expand_tilde_absolute() {
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assert_eq!(expand_tilde("/usr/bin").unwrap(), PathBuf::from("/usr/bin"));
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}
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}
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