Move a bunch of git ops to use the git binary (#302)

src-tauri/yaak-git/src/binary.rs

@@ -0,0 +1,16 @@
+use crate::error::Error::GitNotFound;
+use crate::error::Result;
+use std::path::Path;
+use std::process::Command;
+
+pub(crate) fn new_binary_command(dir: &Path) -> Result<Command> {
+    let status = Command::new("git").arg("--version").status();
+
+    if let Err(_) = status {
+        return Err(GitNotFound);
+    }
+
+    let mut cmd = Command::new("git");
+    cmd.arg("-C").arg(dir);
+    Ok(cmd)
+}