Import: split process_imported_dives() function

Split the process_imported_dives() function in two:
1) process_imported_dives() processes the dives and generates
   a list of dives and trips to be added and removed.
2) add_imported_dives() calls process_imported_dives() and
   does the actual removal / addition of dives and trips.

The goal is to split preparation and actual work, to
make dive import undo-able.

The code adds extra checks to never merge into the same
dive twice, as this would lead to a double-free() bug.
This should in principle never happen, as dives that
compare equal according to is_same_dive() are merged
in the imported-dives list, but perhaps in some pathologival
corner-cases is_same_dive() turns out to be non-transitive.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-12-23 22:08:00 +01:00 committed by Dirk Hohndel
parent fd196f143a
commit 0249e12589
11 changed files with 215 additions and 200 deletions

View file

@ -137,7 +137,7 @@ void TestGitStorage::testGitStorageCloudOfflineSync()
// read the local repo from the previous test and add dive 10
QCOMPARE(parse_file(qPrintable(localCacheRepo), &dive_table, &trip_table), 0);
QCOMPARE(parse_file(SUBSURFACE_TEST_DATA "/dives/test10.xml", &dive_table, &trip_table), 0);
// calling process_loaded_dives() sorts the table, but calling process_imported_dives()
// calling process_loaded_dives() sorts the table, but calling add_imported_dives()
// causes it to try to update the window title... let's not do that
process_loaded_dives();
// now save only to the local cache but not to the remote server