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# js custom Linux environment v3.8 - 20210115
#   Added dmesg -T
# js custom Linux environment v3.7 - 20201203
#   Added please
# js custom Linux environment v3.6 - 20180515
#   Added vim alias
# js custom Linux environment v3.5 - 20180307
#   Added lrtr
# js custom Linux environment v3.4 - 20180213
#   Added myldapsearch
# js custom Linux environment v3.3 - 20140512
#   Added alias pat
# js custom Linux environment v3.2 - 20131102
#   Changed -name to -type in grepfind
#   Changed [] to \s in fcat
#   Added pdfpextr
# js custom Linux environment v3.1 - 20130818
#   Added pgrep alias
# js custom Linux environment v3.0 - 20130804
#   Added stuff from Richard Kemp
# js custom Linux environment v2.7 - 20130804
#   Replaced -1 with 1 as zero() exit error code
# js custom Linux environment v2.6 - 20121201
#   Added --color=auto to grepfind
# js custom Linux environment v2.5 - 20120917
#   Removed aliases to servers
#   Added mkmod function
# js custom Linux environment v2.5 - 20120605
#   Added aliases to servers
# js custom Linux environment v2.4 - 20090907
#   Added h to ls aliases
# js custom Linux environment v2.3 - 20090217
#   Removed interactive shell test
# js custom Linux environment v2.2 - 20090213
#   Commented out PROMPT_COMMAND='history -a; history -n'
#   Added stuff from http://www.johnlawrence.net/code/?f=sfbashrc
# js custom Linux environment v2.1 - 20080530
#   Added bash history sync and comments
# js custom Linux environment v2.0 - 20080503

## If not running interactively, don't do anything
[[ $- == *i* ]] || return

# Set Bash options
shopt -s cdspell        # autocorrects cd misspellings
shopt -s checkwinsize   # update the value of LINES and COLUMNS after each command if altered
shopt -s cmdhist        # save multi-line commands in history as single line
shopt -s dotglob        # include dotfiles in pathname expansion
shopt -s expand_aliases # expand aliases
shopt -s extglob        # enable extended pattern-matching features
shopt -s nocaseglob     # pathname expansion will be treated as case-insensitive

# overwrite a file with zeroes - http://www.shell-fu.org/lister.php?id=94
zero() {
  case "$1" in
    "")     echo "Usage: zero <file>"
            return 1;
  esac
  filesize=`wc -c  "$1" | awk '{print $1}'`
  dd if=/dev/zero of=$1 count=$filesize bs=1
}

# Decode base64 ldapsearch results - https://stackoverflow.com/questions/38710483/how-to-stop-ldapsearch1-from-base64-encoding-userpassword-and-other-attributes
myldapsearch() {
  ldapsearch $* | perl -MMIME::Base64 -MEncode=decode -n -00 -e 's/\n +//g;s/(?<=:: )(\S+)/decode("UTF-8",decode_base64($1))/eg;print'
}
alias ldapsearch=myldapsearch

### Misc useful aliases
alias l='ls -lha --group-directories-first'
alias d='cd ..'
alias c='clear'
alias h='history'
alias ls='ls --color=always' # See export LESS below
alias tm='tail -f /var/log/messages'
alias lrt='ls -alhrt'        # Useful for debugging
alias pgrep='pgrep -fl'      # More verbose pgrep that matches the whole command line
alias pat='puppet agent --test'
alias please='sudo $(history -p !!)'
alias dmesg='dmesg -T'

### vim alias only if vim installed
which vim > /dev/null 2>&1
if [ $? -eq 0 ]; then
  alias vi=vim
fi

### Less options
export LESS="-R" # Make sure to display only color control chars
alias more=less # Always use less

### Bash history sync
# Forces the shell to append the history to the history file instead of overwriting it
shopt -s histappend
# Forces the shell to append any new commands to the history file and read new commands from the history file and append them to the history list
#export PROMPT_COMMAND='history -a; history -n'
# Don't save duplicates in the history
export HISTCONTROL=ignoreboth
# Set a history size of 1000 lines
export HISTSIZE=1000

### Misc useful functions
# Reads a file, skipping all comments
function fcat
{
  egrep -v "^\s*([#;]|$)" "$@"
}

# Tails any file with an initial 1000 lines output
function tf
{
  tail -1000f "$@"
}

# Recursive full-text search
function grepfind
{
  find . -type f -print0 | xargs -0 grep --color=auto "$@"
}

# Find the last modified file recursively - https://www.clevernetsystems.com/find-the-last-modified-file-recursively/
function lrtr
{
  find "$@" -type f -exec stat --format '%Y :%y %n' {} \; | sort -nr | cut -d: -f2- | head
}

### Set xterm title and prompt, depending on the type of terminal
case $TERM in
	xterm*)
		export PS1="\[\033]0;\u@\h: \w\007\e[34;1m\][ \u@\H:\w ]\\$\[\e[0m\] "
		;;
	linux)
		export PS1="\[\e[34;1m\][ \u@\H:\w ]\\$\[\e[0m\] "
		;;
	*)
		# Leave PS1 as is
		;;
esac

### Source Debian's bash completions
if [ -f /etc/bash_completion ]; then
  . /etc/bash_completion
fi

### Puppet quick create module ###
mkmod() {
    mkdir -p /etc/puppet/modules/$1/files
    mkdir /etc/puppet/modules/$1/lib
    mkdir /etc/puppet/modules/$1/manifests
    mkdir /etc/puppet/modules/$1/templates
    mkdir /etc/puppet/modules/$1/tests
}

### pfdpextr PDF page extractor (http://www.linuxjournal.com/content/tech-tip-extract-pages-pdf) ###
function pdfpextr() {
    gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER \
       -dFirstPage=${1} \
       -dLastPage=${2} \
       -sOutputFile=${3%.pdf}_p${1}-p${2}.pdf \
       ${3}
}