[BUG]: Feed import progress bar is misleading

[Randl]

Brief description of the issue.

The progress bar for import can jump backward during importing.

How to reproduce the bug?

1. Import an opml backup
2. Watch the progressbar

What was the expected result?

Progressbar always increases and estimates time left well.

What actually happened?

Progressbar may jump backward. From what I understand it happens since only direct children of processed nodes are counted to estimate total number of feeds (

rssguard/src/librssguard/services/standard/standardfeedsimportexportmodel.cpp

Line 172 in a94c016

total += current_count;

). If feeds are all categorized, this is very inaccurate. Instead, counting all nodes before start may be more accurate even thought it'd require traverse the tree twice.

Other information

• OS: macOS Big Sur 11.2.1
• Desktop Environment:
• RSS Guard version: 3.9.0

[martinrotter]

Hello @Randl, I identified the same problem some days ago and have already fixed it.

808089d