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@ -1,6 +1,5 @@
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pub use which::which;
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use std::{
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ffi::OsStr,
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path::{Path, PathBuf},
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sync::RwLock,
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};
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@ -36,10 +35,33 @@ pub fn env_var_is_set(env_var_name: &str) -> bool {
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std::env::var_os(env_var_name).is_some()
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}
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pub fn binary_exists(binary_name: &str) -> bool {
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pub fn binary_exists<T: AsRef<OsStr>>(binary_name: T) -> bool {
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which::which(binary_name).is_ok()
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}
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pub fn which<T: AsRef<OsStr>>(
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binary_name: T,
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) -> Result<std::path::PathBuf, ExecutableNotFoundError> {
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which::which(binary_name.as_ref()).map_err(|err| ExecutableNotFoundError {
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command: binary_name.as_ref().to_string_lossy().into_owned(),
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inner: err,
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})
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}
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#[derive(Debug)]
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pub struct ExecutableNotFoundError {
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command: String,
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inner: which::Error,
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}
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impl std::fmt::Display for ExecutableNotFoundError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "command '{}' not found: {}", self.command, self.inner)
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}
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}
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impl std::error::Error for ExecutableNotFoundError {}
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#[cfg(test)]
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mod tests {
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use super::{current_working_dir, set_current_working_dir};
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