Add vault modification tracking

- Record vault state changes in sheet operations - Track modifications
when creating, dropping, or updating sheets - Mark vault as unmodified
after syncing with upstream - Add vault_modified module with check and
sign functions

1 files changed, 33 insertions, 0 deletions

diff --git a/crates/vcs_data/src/data/local/vault_modified.rs b/crates/vcs_data/src/data/local/vault_modified.rs
new file mode 100644
index 0000000..125fb92
--- /dev/null
+++ b/crates/vcs_data/src/data/local/vault_modified.rs
@@ -0,0 +1,33 @@
+use crate::{constants::CLIENT_FILE_VAULT_MODIFIED, current::current_local_path};
+
+pub async fn check_vault_modified() -> bool {
+    let Some(current_dir) = current_local_path() else {
+        return false;
+    };
+
+    let record_file = current_dir.join(CLIENT_FILE_VAULT_MODIFIED);
+    if !record_file.exists() {
+        return false;
+    }
+
+    let Ok(contents) = tokio::fs::read_to_string(&record_file).await else {
+        return false;
+    };
+
+    matches!(contents.trim().to_lowercase().as_str(), "true")
+}
+
+pub async fn sign_vault_modified(modified: bool) -> bool {
+    let Some(current_dir) = current_local_path() else {
+        return false;
+    };
+
+    let record_file = current_dir.join(CLIENT_FILE_VAULT_MODIFIED);
+
+    let contents = if modified { "true" } else { "false" };
+
+    match tokio::fs::write(&record_file, contents).await {
+        Ok(_) => true,
+        Err(_) => false,
+    }
+}