chijikpijik

git filter-branch --prune-empty -d /dev/shm/scratch \
  --index-filter "git rm --cached -f --ignore-unmatch oops.iso" \
  --tag-name-filter cat -- --all

chijikpijik

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For generic skin emulator with default apis (without google apis):

1. List All System Images Available for Download: sdkmanager --list | grep system-images

2. Download Image: sdkmanager --install "system-images;android-29;default;x86"

chijikpijik

# shortform git commands
alias g='git'

# show contents of all git objects in a git repo
find .git/objects/ -type f \| sed 's/\.git\/objects\/\///' | sed 's/\///g' | xargs -n1 -I% echo echo "%" \$\(git cat-file -p "%"\) \0 | xargs -n1 -0 sh -c

# push all branches to all remotes
git remote | xargs -L1 git push --all

# count lines of .js code in a repo

chijikpijik

qubectl get pods --no-headers=true | awk '/openstf/{print $1}' | xargs qubectl delete pod  -- delete pods by pattern

chijikpijik

helm template ./rethinkdb --name-template qiwi --output-dir compiled_qiwi

chijikpijik

cat AndroidManifest.xml |  sed -e ':a' -e 'N' -e '$!ba' -e 's/\.*<activity\n/\<activity/g' | awk '/\<activity.*/ {activity_line=$0;print activity_line"\n"} /.*scheme.*/ {print $1;} /.*host.*/ {print $1} /.*pathPrefix.*/ {print $1}' | sed $'s/\/\>/\\\n/g' | sed 's/.*\<activity.*android\:\(.*\)/\1/g' | awk '{RS="";FS="\n"}/.*name.*/{an=$0;next;}  /.*/{print an"\n"$0}' | awk '/.*name.*/{if (x)print x;x="";}{x=(!x)?$0:x" "$0;}END{print x;}'

chijikpijik

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called (Functional) Reactive Programming (FRP).

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.