Memory leak in file indexer

[facboy]

Environent

• Operating system:
  Ubuntu 16.04
• Desktop environment:
  MATE
• Qt version:
  5.5.1
• Source:
  ppa:nilarimogard/webupd8

Steps to reproduce

Click on Files Plugin, click on Update Index

Expected behaviour

I'd expect it's memory size not to permanently increase every time the index is updated.

Actual behaviour

The memory size increases every time the index is updated. If left running with auto-refresh, eventually Albert ends up with a memory footprint of several GB.

[Fuhrmann]

Related #1

[idkCpp]

What do you mean by

permanently increase

When clicking on Update Index albert will create a list of all files to index (this is the simple version).
This list is kept. Until you trigger the next update. When the next update finishes, the old list will be deleted and the new one will take its place. So for a short time there will be twice the memory usage but this should revert as soon as the indexing finishes.
Do you really experience a significant increase when you repeatedly press Update Index? Please test this, but keep in mind to wait for the indexer to finish before triggering the next update.

[qazip]

I also notice this. Albert starts with around 55mb of ram or something, and I usually end the day with around 150.

[ManuelSchneid3r]

Finally a bug that I could reproduce.