28 lines
871 B
Rust
28 lines
871 B
Rust
use std::path::{Path, PathBuf};
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/// Markers checked in priority order when walking up from a target path.
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const MARKERS: &[&str] = &["botignore.toml", ".botignore", ".git"];
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/// Walk upward from `target` (or its parent if `target` is a file) looking
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/// for the nearest project root. Roots are identified by the presence of
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/// any marker in `MARKERS`. Walks from the **target file's location**, not
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/// from cwd, because agents `cd` around.
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pub fn find_project_root(target: &Path) -> Option<PathBuf> {
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let start = if target.is_file() {
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target.parent()?
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} else {
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target
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};
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let mut current = Some(start);
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while let Some(dir) = current {
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for marker in MARKERS {
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if dir.join(marker).exists() {
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return Some(dir.to_path_buf());
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}
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}
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current = dir.parent();
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}
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None
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}
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