Remove folder_files tables from the SQL.

We will use external files instead; remove the logic to insert file
blobs into the database when importing from v1 accounts.

Author: tmpfs

crates/database/sql_migrations/V1__base.sql

@@ -143,37 +143,6 @@ CREATE TABLE IF NOT EXISTS folder_events
 CREATE INDEX IF NOT EXISTS folder_events_commit_hash_idx
   ON folder_events (commit_hash);
 
--- External files for a secret
-CREATE TABLE IF NOT EXISTS folder_files
-(
-    file_id               INTEGER             PRIMARY KEY NOT NULL,
-    folder_id             INTEGER             NOT NULL,
-    secret_id             INTEGER             NOT NULL,
-    created_at            DATETIME            DEFAULT CURRENT_TIMESTAMP,
-    modified_at           DATETIME            DEFAULT CURRENT_TIMESTAMP,
-    -- SHA256 hash of the encrypted file contents
-    checksum              BLOB(32)            NOT NULL,
-    -- Encrypted file contents
-    contents              BLOB                NOT NULL,
-
-    FOREIGN KEY (folder_id) REFERENCES folders (folder_id)
-      ON DELETE CASCADE,
-
-    FOREIGN KEY (secret_id) REFERENCES folder_secrets (secret_id)
-      ON DELETE CASCADE
-);
-CREATE INDEX IF NOT EXISTS folder_files_checksum_idx
-  ON folder_files (checksum);
-
-CREATE TRIGGER
-  update_folder_file_modified_at
-AFTER UPDATE OF checksum ON folder_files
-FOR EACH ROW
-BEGIN UPDATE folder_files
-  SET modified_at = datetime('now')
-  WHERE file_id = NEW.file_id;
-END;
-
 -- Account level events
 CREATE TABLE IF NOT EXISTS account_events 
 (

crates/database/src/db/file.rs

@@ -27,10 +27,7 @@ use sos_vfs as vfs;
 use std::{collections::HashMap, path::Path};
 
 #[cfg(feature = "files")]
-use {
-    super::FileEntity, crate::files::list_external_files,
-    sos_filesystem::FileEventLog as FsFileEventLog,
-};
+use sos_filesystem::FileEventLog as FsFileEventLog;
 
 type AccountEventLog = FsAccountEventLog<sos_filesystem::Error>;
 type DeviceEventLog = FsDeviceEventLog<sos_filesystem::Error>;
@@ -142,22 +139,6 @@ pub(crate) async fn import_account(
         folders.push((vault, vault_meta, rows, events));
     }
 
-    #[cfg(feature = "files")]
-    let user_files = {
-        let mut user_files = Vec::new();
-        let files = list_external_files(&paths).await?;
-        for file in files {
-            let path = paths.file_location(
-                file.vault_id(),
-                file.secret_id(),
-                file.file_name().to_string(),
-            );
-            let buffer = vfs::read(path).await?;
-            user_files.push((file, buffer));
-        }
-        user_files
-    };
-
     let account_preferences =
         if vfs::try_exists(paths.preferences_file()).await? {
             Some(vfs::read_to_string(paths.preferences_file()).await?)
@@ -236,10 +217,6 @@ pub(crate) async fn import_account(
             {
                 // Create the file events
                 event_entity.insert_file_events(account_id, file_events)?;
-
-                // Create the file blobs
-                let file_entity = FileEntity::new(&tx);
-                file_entity.insert_files(&folder_ids, user_files)?;
             }
 
             if let Some(json_data) = account_preferences {

crates/database/src/db/import.rs

@@ -2,8 +2,8 @@
 mod account;
 mod audit;
 mod event;
-#[cfg(feature = "files")]
-mod file;
+// #[cfg(feature = "files")]
+// mod file;
 mod folder;
 mod import;
 #[cfg(feature = "preferences")]
@@ -16,8 +16,8 @@ pub use account::{AccountEntity, AccountRecord};
 pub(crate) use audit::AuditRow;
 pub use audit::{AuditEntity, AuditRecord};
 pub use event::{CommitRecord, EventEntity, EventTable};
-#[cfg(feature = "files")]
-pub use file::FileEntity;
+// #[cfg(feature = "files")]
+// pub use file::FileEntity;
 pub use folder::{FolderEntity, FolderRecord, SecretRecord};
 #[cfg(feature = "preferences")]
 pub use preference::PreferenceEntity;