[PATCH 2/2] CLI/new: drop the write lock to run the pre-new hook.

[David Bremner <david@tethera.net>]

This fixes a bug reported in [1]. In principle it could be possible
avoid one of these reopens, but it complicates the logic in main with
respect to creating new databases.

[1]: id:9C1993DF-84BD-4199-A9C8-BADA98498812@bubblegen.co.uk
---
 notmuch-new.c      | 10 ++++++++++
 test/T400-hooks.sh |  1 -
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/notmuch-new.c b/notmuch-new.c
index 223d68bb..8214fb23 100644
--- a/notmuch-new.c
+++ b/notmuch-new.c
@@ -1170,9 +1170,19 @@ notmuch_new_command (unused(notmuch_config_t *config), notmuch_database_t *notmu
     }
 
     if (hooks) {
+	/* Drop write lock to run hook */
+	status = notmuch_database_reopen (notmuch, NOTMUCH_DATABASE_MODE_READ_ONLY);
+	if (print_status_database ("notmuch new", notmuch, status))
+	    return EXIT_FAILURE;
+
 	ret = notmuch_run_hook (notmuch, "pre-new");
 	if (ret)
 	    return EXIT_FAILURE;
+
+	/* acquire write lock again */
+	status = notmuch_database_reopen (notmuch, NOTMUCH_DATABASE_MODE_READ_WRITE);
+	if (print_status_database ("notmuch new", notmuch, status))
+	    return EXIT_FAILURE;
     }
 
     notmuch_exit_if_unmatched_db_uuid (notmuch);
diff --git a/test/T400-hooks.sh b/test/T400-hooks.sh
index a2b67d59..de8e4ba4 100755
--- a/test/T400-hooks.sh
+++ b/test/T400-hooks.sh
@@ -159,7 +159,6 @@ EOF
     test_expect_equal_file write.expected write.output
 
     test_begin_subtest "pre-new with write access [${config}]"
-    test_subtest_known_broken
     rm -rf ${HOOK_DIR}
     create_write_hook "pre-new" write.expected write.output $HOOK_DIR
     NOTMUCH_NEW
-- 
2.30.2