Method import_line_index_seed

atomic-repository/src/repository/insert.rs:555–714

Rebuild ordered line vertex metadata for a tracked file from the current view's graph. Git import uses this as a conservative repair path when its in-memory line index is missing for a modified file.

(
        &self,
        path: &str,
    )

    /// current view's graph. Git import uses this as a conservative repair
    /// path when its in-memory line index is missing for a modified file.
    pub fn import_line_index_seed(
        &self,
        path: &str,
    ) -> Result<Option<ImportLineIndexSeed>, RepositoryError> {
        let normalized = path.replace('\\', "/");
        let txn = self
            .pristine
            .read_txn()
            .map_err(|e| RepositoryError::Database(e.to_string()))?;

        let view = txn
            .get_view(&self.current_view)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
            .ok_or_else(|| RepositoryError::ViewNotFound {
                name: self.current_view.clone(),
            })?;
        let visible = collect_visible_change_ids_with_deps(&txn, &view)?;

        let Some(inode) = txn
            .get_inode(&normalized)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
        else {
            return Ok(None);
        };
        let Some(position) = txn
            .inode_position(inode)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
        else {
            return Ok(None);
        };
        if !import_seed_node_visible(position.inode_node(), &visible) {
            return Ok(None);
        }
        let Some(inode_change) = txn
            .get_external(position.change)
            .map_err(|e| RepositoryError::Database(e.to_string()))?
        else {
            return Ok(None);
        };

        let mut current = position.inode_node();
        let mut visited = HashSet::new();
        let mut lines = Vec::new();

        loop {
            if !visited.insert(current) {
                return Ok(None);
            }

            let mut adj = txn
                .init_inode_adj(
                    inode,
                    current,
                    EdgeFlags::BLOCK,
                    EdgeFlags::BLOCK | EdgeFlags::FOLDER,
                )
                .map_err(|e| RepositoryError::Database(e.to_string()))?;