add DC_EVENT_DELETED_BLOB_FILE

deltachat-ffi/deltachat.h

@@ -3934,6 +3934,16 @@ int64_t          dc_lot_get_timestamp     (const dc_lot_t* lot);
  */
 #define DC_EVENT_NEW_BLOB_FILE 150
 
+/**
+ * Emitted when a blob file was successfully deleted 
+ *
+ * @param data1 0
+ * @param data2 (const char*) path name 
+ *     Must not be free()'d or modified and is valid only until the callback returns.
+ * @return 0
+ */
+#define DC_EVENT_DELETED_BLOB_FILE 151
+
 /**
  * The library-user should write a warning string to the log.
  * Passed to the callback given to dc_context_new().

deltachat-ffi/src/lib.rs

@@ -128,6 +128,7 @@ impl ContextWrapper {
                     | Event::ImapMessageDeleted(msg)
                     | Event::ImapMessageMoved(msg)
                     | Event::NewBlobFile(msg)
+                    | Event::DeletedBlobFile(msg)
                     | Event::Warning(msg)
                     | Event::Error(msg)
                     | Event::ErrorNetwork(msg)

python/src/deltachat/const.py

@@ -64,6 +64,7 @@ DC_EVENT_SMTP_MESSAGE_SENT = 103
 DC_EVENT_IMAP_MESSAGE_DELETED = 104
 DC_EVENT_IMAP_MESSAGE_MOVED = 105
 DC_EVENT_NEW_BLOB_FILE = 150
+DC_EVENT_DELETED_BLOB_FILE = 151
 DC_EVENT_WARNING = 300
 DC_EVENT_ERROR = 400
 DC_EVENT_ERROR_NETWORK = 401

python/tests/test_account.py

@@ -377,6 +377,7 @@ class TestOnlineAccount:
         self_addr = ac1.get_config("addr")
         ev = ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
         assert self_addr in ev[2]
+        ev = ac1._evlogger.get_matching("DC_EVENT_DELETED_BLOB_FILE")
 
         ac1._evlogger.consume_events()
         lp.sec("send out message without bcc")
@@ -386,6 +387,7 @@ class TestOnlineAccount:
         assert ev[2] == msg_out.id
         ev = ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
         assert self_addr not in ev[2]
+        ev = ac1._evlogger.get_matching("DC_EVENT_DELETED_BLOB_FILE")
 
     def test_mvbox_sentbox_threads(self, acfactory):
         ac1 = acfactory.get_online_configuring_account(mvbox=True, sentbox=True)

src/dc_tools.rs

@@ -17,6 +17,7 @@ use rand::{thread_rng, Rng};
 
 use crate::context::Context;
 use crate::error::Error;
+use crate::events::Event;
 
 pub(crate) fn dc_exactly_one_bit_set(v: libc::c_int) -> bool {
     0 != v && 0 == v & (v - 1)
@@ -512,10 +513,14 @@ pub(crate) fn dc_delete_file(context: &Context, path: impl AsRef<std::path::Path
         return false;
     }
 
+    let dpath = format!("{}", path.as_ref().to_string_lossy());
     match fs::remove_file(path_abs) {
-        Ok(_) => true,
+        Ok(_) => {
+            context.call_cb(Event::DeletedBlobFile(dpath));
+            true
+        }
         Err(_err) => {
-            warn!(context, "Cannot delete \"{}\".", path.as_ref().display());
+            warn!(context, "Cannot delete \"{}\".", dpath);
             false
         }
     }

src/events.rs

@@ -60,6 +60,12 @@ pub enum Event {
     #[strum(props(id = "150"))]
     NewBlobFile(String),
 
+    /// Emitted when an new file in the $BLOBDIR was created
+    ///
+    /// @return 0
+    #[strum(props(id = "151"))]
+    DeletedBlobFile(String),
+
     /// The library-user should write a warning string to the log.
     /// Passed to the callback given to dc_context_new().
     ///