oldratlee

#!/bin/bash
set -eEuo pipefail

# https://stackoverflow.com/questions/6928946/mysterious-lineno-in-bash-trap-err
# https://stackoverflow.com/questions/64786/error-handling-in-bash
# https://stackoverflow.com/questions/24398691/how-to-get-the-real-line-number-of-a-failing-bash-command
# https://unix.stackexchange.com/questions/39623/trap-err-and-echoing-the-error-line
# https://unix.stackexchange.com/questions/462156/how-do-i-find-the-line-number-in-bash-when-an-error-occured
# https://unix.stackexchange.com/questions/365113/how-to-avoid-error-message-during-the-execution-of-a-bash-script
# https://shapeshed.com/unix-exit-codes/#how-to-suppress-exit-statuses

oldratlee

#!/bin/bash
# comment-coverage-report.sh
#     generate comment coverage report, markdown table format
#
# NOTE:
# 1. run at project root dir
# 2. install ohcount: https://github.com/blackducksw/ohcount
#    if you use mac install by brew: brew install ohcount

set -euo pipefail

oldratlee

• https://www.slf4j.org
• https://www.slf4j.org/legacy.html

SLF4J Binding

LOG4J-12

oldratlee

gcor() {
  # http://stackoverflow.com/questions/5188320/how-can-i-get-a-list-of-git-branches-ordered-by-most-recent-commit
  # --sort=-committerdate : sort branch by commit date in descending order
  # --sort=committerdate : sort branch by commit date in ascending order
  git branch -a --sort=committerdate "$@" |
  awk -F'remotes/origin/' '/remotes\/origin\//{print $2}' |
  tail -1 |
  xargs git checkout
}

oldratlee

import scala.collection.immutable.ListSet

object ScalaLinearization {

  case class Clazz(className: Symbol, superClasses: ListSet[Clazz])

  // Ignore Any, AnyRef. Simplify demo implementation
  val animal = Clazz('Animal, ListSet())
  val furry = Clazz('Furry, ListSet(animal))
  val hasLegs = Clazz('HasLegs, ListSet(animal))

oldratlee

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Linearization {
    private static void linearization(String clazz, List<String> result, Map<String, List<String>> class2Supers) {
        final List<String> supers = class2Supers.get(clazz);

oldratlee

# Run erlang MFA(Module-Function-Args) conveniently, like
# erun fac1 main 25 # example from book programming erlang.
erun() {
    if [ $# -lt 2 ]; then
        echo "Error: at least 2 args!"
        return 1
    fi
    erl -s "$@" -s init stop -noshell
}

oldratlee

set nocompatible
" set backspace=indent,eol,start

syntax on

set ignorecase
set hlsearch

set number
set relativenumber

oldratlee

ghc() {
    local url="${1:-$(git remote get-url origin)}"
    if [ -z "$url" ]; then
        echo "No arguement and Not a git repository!"
        return 1
    fi

    if [[ "$url" =~ '^http' ]]; then
        echo "$url" | sed 's#^https?://#git@#; s#$#\.git#; s#(\.com|\.org)/#\1:#' -r | c
    else

oldratlee

		<profile>
			<id>java8+</id>
			<activation>
				<jdk>[1.6,1.7]</jdk>
			</activation>
			<build>
				<plugins>
					<plugin>
						<artifactId>maven-compiler-plugin</artifactId>
						<version>3.5.1</version>