Ignore libadblockplus and libadblockplus-android files

[diegocarloslima]

Background

When building ABP Chromium, lots of files fetched from libadblockplus and libadblockplus-andoid dependencies show as unstaged files. This makes harder to use UI tools (e.g. SourceTree or GitKraken) and makes easier to add some of those files to the repository by mistake. Furthermore, it seems that it also can impact on sync calls, which can result in files being wiped and re-downloaded on each sync.

What to change

Ignore fetched files for libadblockplus and libadblockplus-android dependencies

[diegocarloslima]

For fixing that, 2 approaches comes into my mind:

1. We could keep both dependencies directory structure as it is, and add the following ignore rules in third_party/.gitignore:

   /libadblockplus 
   !/libadblockplus/BUILD.gn 
   !/libadblockplus/download_ndk.py 
   !/libadblockplus/prepare_dependencies.py 
   /libadblockplus_android 
   !/libadblockplus_android/BUILD.gn 
   !/libadblockplus_android/prepare_build_tools.py 
   !/libadblockplus_android/proguard-adblock.txt 
   

This approach has the drawback to be prone to need more maintenance in the .gitignorefile

2. We could check the dependencies inside a src folder (/third_party/libadblockplus/src and /third_party/libadblockplus-android/src) and add just 2 rules for the ignore file:

   /libadblockplus/src
   /libadblockplus_android/src
   

For me, this is the best option, since we just need to add 2 rules and this is also how its done in Chromium already for other dependencies.

[asmirnov]

Since i was not CCed and you did not pinged me about it i've duplicated it #6536.
I'm closing it as i've already pushed feature branch and merge request for #6536.