Kolban's book on ESP32

Here is the download link:
https://leanpub.com/s/r39Hqic8oQGVQ8wiP4QN8Q.pdf

What tense should I use in git commit message?

So far I was mostly using the past tense since it looks natural to me but the git best practices suggest us to use imperative sentence.

Example: 

My old git message:
Added IDF commands into CMake editor

New git message:
Add IDF commands into CMake editor

Follow this thread for more discussion on this:
https://stackoverflow.com/questions/3580013/should-i-use-past-or-present-tense-in-git-commit-messages

Where does eclipse CDT stores CMake toolchain information?

CDT stores cmake toolchain information as part of org.eclipse.cdt.cmake.core.prefs file.

/Users/kondal/runtime-EclipseApplication6/.metadata/.plugins/org.eclipse.core.runtime/.settings/org.eclipse.cdt.cmake.core.prefs

For example, here is the content of the file 

cmakeToolchains/14/__path=/Users/kondal/esp/esp-idf/tools/cmake/toolchain-esp32.cmake

cmakeToolchains/14/cdt.toolChain.id=gcc-xtensa-/Users/kondal/esp/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc

cmakeToolchains/14/cdt.toolChain.type=org.eclipse.cdt.build.gcc

cmakeToolchains/n=15

eclipse.preferences.version=1

To understand more how eclipse store preferences:
https://gnu-mcu-eclipse.github.io/developer/eclipse/runtime-preferences/

Where can I find the eclipse store preferences in the file system

Eclipse stores the preferences in the workspace of your application in the.metadata/.plugins/org.eclipse.core.runtime/.settings/ directory in the <nodePath>.prefs file

For example, for CDT build environment variables stored in here:

.metadata/.plugins/org.eclipse.core.runtime/.settings/org.eclipse.cdt.core.pref

x

Java processes and streams and avoiding blocks

One of the best resource on managing the streams in Java
https://wiki.sei.cmu.edu/confluence/display/java/FIO07-J.+Do+not+let+external+processes+block+on+IO+buffers

Checklist of refactoring done right way

https://refactoring.guru/refactoring/how-to

security certificates of a jar file

$ jarsigner -verify -verbose -certs  /Eclipse/plugins/com.espressif.core_1.0.0.jar