website/scripts: Add docsmg migration tool (#10658)

* add docsmg tool

* moved to the correct scripts directory

* removed test files

website/scripts/docsmg/src/generate.rs

@@ -0,0 +1,31 @@
+use std::path::PathBuf;
+
+use crate::{migratefile::read_migrate_file, recurse_directory};
+
+pub fn generate(migratefile: Option<PathBuf>, migrate_path: PathBuf) {
+    // if there is a migrate file, read it and get the paths from the left side
+    let paths: Vec<PathBuf> = match migratefile {
+        Some(i) => {
+            let contents = read_migrate_file(i);
+            if let Ok(contents) = contents {
+                contents.iter().map(|x| x.0.clone()).collect()
+            } else {
+                vec![]
+            }
+        }
+        None => {
+            vec![]
+        }
+    };
+    // get rid of paths already in the specified migrate file
+    let paths: Vec<PathBuf> = recurse_directory(migrate_path.clone())
+        .iter()
+        .filter(|x| !paths.contains(x))
+        .filter_map(|x| x.strip_prefix(migrate_path.clone()).ok())
+        .map(|x| x.to_path_buf())
+        .collect();
+
+    for path in paths {
+        println!("{} -> ", path.display());
+    }
+}