.functions

# Create a new directory and enter it
function md() {
	mkdir -p "$@" && cd "$@"
}


# find shorthand
function f() {
	find . -name "$1" 2>&1 | grep -v 'Permission denied'
}

# List all files, long format, colorized, permissions in octal
function la(){
 	ls -l  "$@" | awk '
    {
      k=0;
      for (i=0;i<=8;i++)
        k+=((substr($1,i+2,1)~/[rwx]/) *2^(8-i));
      if (k)
        printf("%0o ",k);
      printf(" %9s  %3s %2s %5s  %6s  %s %s %s\n", $3, $6, $7, $8, $5, $9,$10, $11);
    }'
}

# Use Git’s colored diff when available
hash git &>/dev/null;
if [ $? -eq 0 ]; then
	function diff() {
		git diff --no-index --color-words "$@";
	}
fi;

# cd into whatever is the forefront Finder window.
cdf() {  # short for cdfinder
  cd "`osascript -e 'tell app "Finder" to POSIX path of (insertion location as alias)'`"
}


# Syntax-highlight JSON strings or files
# Usage: `json '{"foo":42}'` or `echo '{"foo":42}' | json`
function json() {
	if [ -t 0 ]; then # argument
		python -mjson.tool <<< "$*" | pygmentize -l javascript;
	else # pipe
		python -mjson.tool | pygmentize -l javascript;
	fi;
}

# `s` with no arguments opens the current directory in Sublime Text, otherwise
# opens the given location
function s() {
	if [ $# -eq 0 ]; then
		subl .;
	else
		subl "$@";
	fi;
}

# `a` with no arguments opens the current directory in Atom Editor, otherwise
# opens the given location
function a() {
	if [ $# -eq 0 ]; then
		atom .;
	else
		atom "$@";
	fi;
}

# `v` with no arguments opens the current directory in Vim, otherwise opens the
# given location
function v() {
	if [ $# -eq 0 ]; then
		vim .;
	else
		vim "$@";
	fi;
}

# `o` with no arguments opens the current directory, otherwise opens the given
# location
function o() {
	if [ $# -eq 0 ]; then
		open .;
	else
		open "$@";
	fi;
}


# Start an HTTP server from a directory, optionally specifying the port
function server() {
	local port="${1:-8000}"
	open "http://localhost:${port}/"
	# Set the default Content-Type to `text/plain` instead of `application/octet-stream`
	# And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for binary files)
	python -c $'import SimpleHTTPServer;\nmap = SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map;\nmap[""] = "text/plain";\nfor key, value in map.items():\n\tmap[key] = value + ";charset=UTF-8";\nSimpleHTTPServer.test();' "$port"
}


# Copy w/ progress
cp_p () {
  rsync -WavP --human-readable --progress $1 $2
}



# get gzipped size
function gz() {
	echo "orig size    (bytes): "
	cat "$1" | wc -c
	echo "gzipped size (bytes): "
	gzip -c "$1" | wc -c
}

# whois a domain or a URL
function whois() {
	local domain=$(echo "$1" | awk -F/ '{print $3}') # get domain from URL
	if [ -z "$domain" ] ; then
		domain=$1
	fi
	echo "Getting whois record for: $domain …"

	# avoid recursion
					# this is the best whois server
													# strip extra fluff
	/usr/bin/whois -h whois.internic.net $domain | sed '/NOTICE:/q'
}

function localip(){
	function _localip(){ echo "📶  "$(ipconfig getifaddr "$1"); }
	export -f _localip
	local purple="\x1B\[35m" reset="\x1B\[m"
	networksetup -listallhardwareports | \
		sed -r "s/Hardware Port: (.*)/${purple}\1${reset}/g" | \
		sed -r "s/Device: (en.*)$/_localip \1/e" | \
		sed -r "s/Ethernet Address:/📘 /g" | \
		sed -r "s/(VLAN Configurations)|==*//g"
}

# Extract archives - use: extract <file>
# Based on http://dotfiles.org/~pseup/.bashrc
function extract() {
	if [ -f "$1" ] ; then
		local filename=$(basename "$1")
		local foldername="${filename%%.*}"
		local fullpath=`perl -e 'use Cwd "abs_path";print abs_path(shift)' "$1"`
		local didfolderexist=false
		if [ -d "$foldername" ]; then
			didfolderexist=true
			read -p "$foldername already exists, do you want to overwrite it? (y/n) " -n 1
			echo
			if [[ "$REPLY" =~ ^[Nn]$ ]]; then
				return
			fi
		fi
		mkdir -p "$foldername" && cd "$foldername"
		case $1 in
			*.tar.bz2) tar xjf "$fullpath" ;;
			*.tar.gz) tar xzf "$fullpath" ;;
			*.tar.xz) tar Jxvf "$fullpath" ;;
			*.tar.Z) tar xzf "$fullpath" ;;
			*.tar) tar xf "$fullpath" ;;
			*.taz) tar xzf "$fullpath" ;;
			*.tb2) tar xjf "$fullpath" ;;
			*.tbz) tar xjf "$fullpath" ;;
			*.tbz2) tar xjf "$fullpath" ;;
			*.tgz) tar xzf "$fullpath" ;;
			*.txz) tar Jxvf "$fullpath" ;;
			*.zip) unzip "$fullpath" ;;
			*) echo "'$1' cannot be extracted via extract()" && cd .. && ! $didfolderexist && rm -r "$foldername" ;;
		esac
	else
		echo "'$1' is not a valid file"
	fi
}

# who is using the laptop's iSight camera?
camerausedby() {
	echo "Checking to see who is using the iSight camera… 📷"
	usedby=$(lsof | grep -w "AppleCamera\|USBVDC\|iSight" | awk '{printf $2"\n"}' | xargs ps)
	echo -e "Recent camera uses:\n$usedby"
}


# animated gifs from any video
# from alex sexton   gist.github.com/SlexAxton/4989674
gifify() {
  if [[ -n "$1" ]]; then
	if [[ "$2" == '--good' ]]; then
	  ffmpeg -i $1 -r 10 -vcodec png out-static-%05d.png
	  time convert -verbose +dither -layers Optimize -resize 900x900\> out-static*.png  GIF:- | gifsicle --colors 128 --delay=5 --loop --optimize=3 --multifile - > $1.gif
	  rm out-static*.png
	else
	  ffmpeg -i $1 -s 600x400 -pix_fmt rgb24 -r 10 -f gif - | gifsicle --optimize=3 --delay=3 > $1.gif
	fi
  else
	echo "proper usage: gifify <input_movie.mov>. You DO need to include extension."
  fi
}

# turn that video into webm.
# brew reinstall ffmpeg --with-libvpx
webmify(){
	ffmpeg -i $1 -vcodec libvpx -acodec libvorbis -isync -copyts -aq 80 -threads 3 -qmax 30 -y $2 $1.webm
}

# Determine size of a file or total size of a directory
function fsizef() {
	if du -b /dev/null > /dev/null 2>&1; then
		local arg=-sbh;
	else
		local arg=-sh;
	fi
	if [[ -n "$@" ]]; then
		du $arg -- "$@";
	else
		du $arg .[^.]* *;
	fi;
}

# Simple calculator
function calc() {
	local result="";
	result="$(printf "scale=10;$*\n" | bc --mathlib | tr -d '\\\n')";
	#                       └─ default (when `--mathlib` is used) is 20
	#
	if [[ "$result" == *.* ]]; then
		# improve the output for decimal numbers
		printf "$result" |
		sed -e 's/^\./0./'        `# add "0" for cases like ".5"` \
		    -e 's/^-\./-0./'      `# add "0" for cases like "-.5"`\
		    -e 's/0*$//;s/\.$//';  # remove trailing zeros
	else
		printf "$result";
	fi;
	printf "\n";
}


# `tre` is a shorthand for `tree` with hidden files and color enabled, ignoring
# the `.git` directory, listing directories first. The output gets piped into
# `less` with options to preserve color and line numbers, unless the output is
# small enough for one screen.
function tre() {
	tree -aC -I '.git|node_modules|bower_components' --dirsfirst "$@" | less -FRNX;
}