[PATCH v3 2/2] lib/message-property: catch xapian exceptions

[Kevin Boulain <kevin@boula.in>]

Since libnotmuch exposes a C interface there's no way for clients to
catch this.
Inspired by what's done for tags (see notmuch_message_remove_tag).
---
 lib/message-property.cc       | 36 +++++++++++++++++++++++++++++------
 test/T610-message-property.sh |  2 --
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/lib/message-property.cc b/lib/message-property.cc
index d5afa30c..0d444bb8 100644
--- a/lib/message-property.cc
+++ b/lib/message-property.cc
@@ -25,6 +25,20 @@
 #include "database-private.h"
 #include "message-private.h"
 
+#define LOG_XAPIAN_EXCEPTION(message, error) _log_xapian_exception (__location__, message, error)
+
+static void
+_log_xapian_exception (const char *where, notmuch_message_t *message,  const Xapian::Error error)
+{
+    notmuch_database_t *notmuch = notmuch_message_get_database (message);
+
+    _notmuch_database_log (notmuch,
+			   "A Xapian exception occurred at %s: %s\n",
+			   where,
+			   error.get_msg ().c_str ());
+    notmuch->exception_reported = true;
+}
+
 notmuch_status_t
 notmuch_message_get_property (notmuch_message_t *message, const char *key, const char **value)
 {
@@ -83,10 +97,15 @@ _notmuch_message_modify_property (notmuch_message_t *message, const char *key, c
 
     term = talloc_asprintf (message, "%s=%s", key, value);
 
-    if (delete_it)
-	private_status = _notmuch_message_remove_term (message, "property", term);
-    else
-	private_status = _notmuch_message_add_term (message, "property", term);
+    try {
+	if (delete_it)
+	    private_status = _notmuch_message_remove_term (message, "property", term);
+	else
+	    private_status = _notmuch_message_add_term (message, "property", term);
+    } catch (Xapian::Error &error) {
+	LOG_XAPIAN_EXCEPTION (message, error);
+	return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+    }
 
     if (private_status)
 	return COERCE_STATUS (private_status,
@@ -130,8 +149,13 @@ _notmuch_message_remove_all_properties (notmuch_message_t *message, const char *
     else
 	term_prefix = _find_prefix ("property");
 
-    /* XXX better error reporting ? */
-    _notmuch_message_remove_terms (message, term_prefix);
+    try {
+	/* XXX better error reporting ? */
+	_notmuch_message_remove_terms (message, term_prefix);
+    } catch (Xapian::Error &error) {
+	LOG_XAPIAN_EXCEPTION (message, error);
+	return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+    }
 
     return NOTMUCH_STATUS_SUCCESS;
 }
diff --git a/test/T610-message-property.sh b/test/T610-message-property.sh
index 402b4e9a..13f8a3f9 100755
--- a/test/T610-message-property.sh
+++ b/test/T610-message-property.sh
@@ -363,7 +363,6 @@ EOF
 test_expect_equal_file /dev/null OUTPUT
 
 test_begin_subtest "edit property on removed message without uncaught exception"
-test_subtest_known_broken
 cat c_head - c_tail <<'EOF' | test_C ${MAIL_DIR}
 EXPECT0(notmuch_database_remove_message (db, notmuch_message_get_filename (message)));
 stat = notmuch_message_remove_property (message, "example", "example");
@@ -380,7 +379,6 @@ test_expect_equal_file EXPECTED OUTPUT
 add_email_corpus
 
 test_begin_subtest "remove all properties on removed message without uncaught exception"
-test_subtest_known_broken
 cat c_head - c_tail <<'EOF' | test_C ${MAIL_DIR}
 EXPECT0(notmuch_database_remove_message (db, notmuch_message_get_filename (message)));
 stat = notmuch_message_remove_all_properties_with_prefix (message, "");