feat: impl finder

1 files changed, 44 insertions, 4 deletions

diff --git a/src/finder.rs b/src/finder.rs
index da88beb..688009c 100644
--- a/src/finder.rs
+++ b/src/finder.rs
@@ -1,15 +1,55 @@
-use std::ops::Deref;
+use std::{
+    io::Write,
+    ops::Deref,
+    path::PathBuf,
+    process::{Child, Command, Stdio},
+};
 
 pub use config::Config;
+pub use error::{Error, Result};
 
 mod config;
+mod error;
 
-pub struct Finder(Config);
+pub struct Finder {
+    pub(crate) child: Child,
+}
 
 impl Deref for Finder {
-    type Target = Config;
+    type Target = Child;
 
     fn deref(&self) -> &Self::Target {
-        &self.0
+        &self.child
+    }
+}
+
+impl Finder {
+    pub(crate) fn new(config: &Config) -> Result<Self> {
+        Ok(Finder {
+            child: Command::new(&config.program)
+                .args(&config.args)
+                .stdin(Stdio::piped())
+                .stdout(Stdio::piped())
+                .spawn()?,
+        })
+    }
+
+    pub(crate) fn run<V>(&mut self, directories: V) -> Result<()>
+    where
+        V: IntoIterator<Item = PathBuf>,
+    {
+        let stdin = directories
+            .into_iter()
+            .map(|p: PathBuf| p.to_string_lossy().into())
+            .collect::<Vec<String>>()
+            .join("\n");
+
+        self.child
+            .stdin
+            .as_mut()
+            .ok_or(Error::Stdin)?
+            .deref()
+            .write_all(stdin.as_bytes())
+            .map_err(Into::into)
     }
 }