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Intellij IDEA - Cheat Sheet (aka most useful shortcuts)

Note: Some of these keymapping are specific to IdeaVim plugin. If you don't use IdeaVim (what' wrong with you :)), I've tried to point out where they differ, but I could have missed a few

Coding Session

Parameter documentation for Method Calls

• Ctrl-P - Popup parameter documentation for method calls

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find . -name '@eaDir' -type d -print0 | xargs -0 rm -rfv

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Increasing replication factor for a topic

1. Create a custom reassignment plan (see attached file inc-replication-factor.json). In this case we are going from replication factor of 1 to 3.

2. Run Kafka partition reassignment script:

   kafka-reassign-partitions --zookeeper $ZOOKEEPER_CONNECT \
       --reassignment-json-file /home/liquidnt/inc-replication-factor.json  \
       --execute
   

3. Verify if the assignment was successful

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Zsh Tips and Tricks

Argument History

!*        # ... All parameters of the last command
!$        # ... Last parameter of the last command
!^        # ... First parameter of the last command
!:1       # ... First parameter of the last command

!-2:2 # ... Second parameter from 2 commands ago

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Babun Tab Completion

If babun tab completion stops working, then do the following:

$ cd
$ compinit
$ cp .zcompdump .zcompdump-$HOSTNAME-$ZSH_VERSION

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//... Disable annoying plugin upgrade messages
def resolveDependenciesWasInteractive = false
eventResolveDependenciesStart = {
    resolveDependenciesWasInteractive = isInteractive
    isInteractive = false
}

eventResolveDependenciesEnd = {
    isInteractive = resolveDependenciesWasInteractive
}

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Resolving Version Conflicts in Gradle

If one module has a dependency on version 1.1 of library X and another module on version 2.0 of the same library, gradle will use the latest version.

Failing a build on version conflict

To make gradle fail the build on encountering a conflict, we can do the following:

configurations.all {

resolutionStrategy {

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Online Resources to Learn Free Monads

Videos

Composable application architecture with reasonably priced monads - Rúnar Bjarnason

Programs as Values - Rob Norris

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# ~/.vim/filetype.vim
au BufNewFile,BufRead *.gradle setf groovy

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MacOS (Sierra) Recovery Disk

Prerequisites

USB drive with atleast 5 GB of storage

Steps

1. Download MacOS Sierra from the App Store (cancel out of the installation)
2. Open Finder and navigate to Applications directory