Flowcells save

src/collection/flowcells.rs

@@ -1,7 +1,7 @@
 use std::{
     collections::{HashMap, HashSet},
     fmt,
-    fs::{self, File},
+    fs::{self, File, OpenOptions},
     io::{BufReader, Read},
     os::unix::fs::MetadataExt,
     path::Path,
@@ -140,6 +140,7 @@ impl FlowCells {
         instance.load_from_archive(archive_store_path)?;
         instance.load_from_local(local_run_dir)?;
         instance.annotate_with_inputs(inputs_path)?;
+        instance.save_to_archive(archive_store_path)?;
 
         Ok(instance)
     }
@@ -167,6 +168,20 @@ impl FlowCells {
         Ok(())
     }
 
+    pub fn save_to_archive(&mut self, archive_path: &str) -> anyhow::Result<()> {
+        let file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(archive_path)
+            .with_context(|| format!("Failed to open archive file for writing: {archive_path}"))?;
+
+        serde_json::to_writer_pretty(file, &self.flow_cells)
+            .with_context(|| format!("Failed to write FlowCells to: {archive_path}"))?;
+
+        Ok(())
+    }
+
     /// Scan local run directories for flowcells and merge into `self.flow_cells`.
     ///
     /// Uses `scan_local()` to parse local metadata and selects the most recently modified