start of the libportage, first ebuild created

libportage/lib.rs

@@ -0,0 +1,30 @@
+use std::{env, path::{Path,PathBuf}};
+use std::io::Result;
+
+fn getwcd() -> Result<PathBuf> {
+    let cwd = match env::current_dir() {
+        Ok(p) => p,
+        Err(_) => {
+            env::set_current_dir("/")?;
+            PathBuf::from("/")
+        }
+    };
+
+    Ok(cwd)
+}
+
+fn abssymlink(symlink: &Path, target: Option<PathBuf>) -> Result<PathBuf> {
+    let mut mylink = if target.is_some() {
+        target.unwrap()
+    } else {
+        std::fs::read_link(symlink)?
+    };
+    if !mylink.has_root() {
+        let mydir = mylink.parent().unwrap();
+        let link_name = mylink.clone();
+        mylink = Path::new(mydir).join(link_name);
+    }
+
+    Ok(mylink)
+}
+