Add CLI import and export commands (#484)

crates/yaak/src/export.rs

@@ -0,0 +1,29 @@
+use crate::Result;
+use std::fs::File;
+use std::path::Path;
+use yaak_models::query_manager::QueryManager;
+use yaak_models::util::get_workspace_export_resources;
+
+pub struct ExportDataParams<'a> {
+    pub query_manager: &'a QueryManager,
+    pub yaak_version: &'a str,
+    pub export_path: &'a Path,
+    pub workspace_ids: Vec<&'a str>,
+    pub include_private_environments: bool,
+}
+
+pub fn export_data(params: ExportDataParams<'_>) -> Result<()> {
+    let db = params.query_manager.connect();
+    let export_data = get_workspace_export_resources(
+        &db,
+        params.yaak_version,
+        params.workspace_ids,
+        params.include_private_environments,
+    )?;
+
+    let file = File::options().create(true).truncate(true).write(true).open(params.export_path)?;
+    serde_json::to_writer_pretty(&file, &export_data)?;
+    file.sync_all()?;
+
+    Ok(())
+}