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#!/usr/bin/env bash

less()
{
  typeset param parsed
  typeset -a params
  if (( $# == 1 )) && [[ -f "$1" ]] && (( $(wc -l < "$1") < ${LINES:-20} ))
  then
    cat $1
    return 0
  fi
  for param in "$@"
  do
    case $param in
    (*:*)
      if [[ -f "$param" ]]
      then
        params+=( "$param" )
      else
        parsed=( ${param//:/ } )
        params+=( "-N" "+j${parsed[1]}" "${parsed[0]}" )
      fi
      ;;
    (*)
      params+=( "$param" )
      ;;
    esac
  done
  command less "${params[@]}"
}

get()
{
  typeset count url file
  count=$1
  url=$2
  file=$3
  if [[ -z "$count" ]]
  then
    echo "Usage: $0 [count] url [target]"
    return 1
  fi
  if [[ -z "$url" ]]
  then
    url="$count"
    count=2
  fi
  if [[ -z "$file" ]]
  then
    file="$(basename "${url%%\?*}")";
  fi
  echo "Save $url to $file in $count threads."
  aria2c -c -x $count -j $count -s $count $url -o $file
}

if ! which wget > /dev/null 2>&1
then
  wget()
  {
    curl $1 -o $(basename $1)
  }
fi
if ! which ldd > /dev/null 2>&1 && which otool > /dev/null 2>&1
then
  ldd()
  {
    otool -L "$@"
  }
fi

d()
{
  [[ -d $1 ]] || mkdir -p $1
  cd $1
}
gwmpush()
{
  git pull $@ && git pull bitbucket master $@ && git push && git push bitbucket master
}
gpp()
{
  git pull $@ && git push
}
gcaa()
{
  git add .
  git commit --amend
}
gcamp()
{
  gcam "$@"
  gpp
}
gcam()
{
  git add .
  git commit -m "$*"
}
gcm()
{
  git commit -m "$*"
}
gf()
{
  typeset command subcommand version
  command=$1
  subcommand=$2
  version=${3:-}

  case $command in
    (r*) command=release ;;
    (h*) command=hotfix ;;
  esac
  case $subcommand in
    (s*) subcommand=start ;;
    (f*) subcommand=finish ;;
  esac
  if [[ -z "$version" ]]
  then
    case "$command-$subcommand" in
      (release-start) version=$(awk -F "[.-]" '{ if ($4=="") print $1"."$2+1".0"; else print $1"."$2"."$3;}' < VERSION ) ;; #'
      (hotfix-start) version=$(awk -F "." '{ print $1"."$2"."$3+1}' < VERSION ) ;;
      (*-finish) version=$(cat VERSION) ;;
    esac
  fi

  git flow $command $subcommand $version

  if [[ "$subcommand" == "start" ]]
  then
    echo $version > VERSION
    git add VERSION
    git commit -m $version
  fi
}
show_git() {
  typeset limit path top
  limit=$(git config dir.limit 2>/dev/null)
  path="$PWD"
  top=$(git rev-parse --show-toplevel 2>/dev/null)
  [[ -z "$limit" ]] && return 0
  while (( limit >= 0 ))
  do
    case "$path" in
      ($top) return 0 ;;
      (/|$HOME) return 1 ;;
    esac
    path="$( dirname "$path" )"
    : $(( --limit ))
  done
  return 1
}
function pgd {
  show_git && git status --porcelain 2>/dev/null |
  sed 's/^\(.\)\(.\).*$/\1 \2/' | # ?? ... => ? ?
  awk -v out="$1" '
BEGIN { x=0;y=0; }
$1!=" " && $1!="?"{ x++; }
$2!=" "{ y++; }
END{
  if(out==""){
    if(x>0)print "uncomitted"; else if (y>0) print "dirty";
  }
  else{
    if(x>0||y>0)print out;
  }
}
'
}
function pgb {
  show_git && __git_ps1 "${1:-%s}" 2>/dev/null
}
function pgr {
  show_git && git status 2>/dev/null | awk -v out="$1" '/# Your branch is / { if(out=="") printf $5; else printf out }' #'
}
function _rvm_curr {
  typeset __rvm_curr
  __rvm_curr=$(__rvm_env_string)
  [[ -n "${__rvm_curr}" ]] && printf "${__rvm_curr##ruby-} "
}
function show_function() {
  typeset -f $@
}
function edit_function() {
  typeset body name
  name="$*"
  name="${name// /-}"
  if
    (( $# > 0 )) &&
    show_function $@ >/dev/null
  then
    show_function $@ > ${TMPDIR:-/tmp}/__function_${name}_1.sh
    cp -f ${TMPDIR:-/tmp}/__function_${name}_1.sh ${TMPDIR:-/tmp}/__function_${name}_2.sh
    ${EDITOR:-vim} ${TMPDIR:-/tmp}/__function_${name}_1.sh
    diff -qwB ${TMPDIR:-/tmp}/__function_${name}_1.sh ${TMPDIR:-/tmp}/__function_${name}_2.sh >/dev/null ||
      source ${TMPDIR:-/tmp}/__function_${name}_1.sh
    rm -f ${TMPDIR:-/tmp}/__function_${name}_{1,2}.sh
  else
    echo "there is no function $name"
  fi
}
function edit_variable() {
  typeset body name
  name="$*"
  name="${name// /-}"
  if
    (( $# > 0 )) &&
    eval "[[ -n \${$1} ]]"
  then
    set | grep -a "^$1=" > ${TMPDIR:-/tmp}/__function_${name}_1.sh
    cp -f ${TMPDIR:-/tmp}/__function_${name}_1.sh ${TMPDIR:-/tmp}/__function_${name}_2.sh
    ${EDITOR:-vim} ${TMPDIR:-/tmp}/__function_${name}_1.sh
    diff -qwB ${TMPDIR:-/tmp}/__function_${name}_1.sh ${TMPDIR:-/tmp}/__function_${name}_2.sh >/dev/null ||
      source ${TMPDIR:-/tmp}/__function_${name}_1.sh
    rm -f ${TMPDIR:-/tmp}/__function_${name}_{1,2}.sh
  else
    echo "there is no function $name"
  fi
}
__setup_ssh_agent()
{
  # skip if already loaded
  if [[ -n "$SSH_AGENT_PID" ]] && ps -p $SSH_AGENT_PID | grep ssh-agent >/dev/null
  then return 0
  fi

  typeset agent_file
  agent_file=~/.ssh-agent-config

  if [[ -f $agent_file ]]
  then source $agent_file >/dev/null
  fi

  if [[ -n "$SSH_AGENT_PID" ]] && ps -p $SSH_AGENT_PID | grep ssh-agent >/dev/null
  then return 0
  fi

  ssh-agent > $agent_file
  chmod 600 $agent_file
  source $agent_file >/dev/null

  if [[ -t 0 ]] && ! ssh-add -l | grep $HOME/.ssh/id_rsa >/dev/null
  then
    ssh-add
  fi
}
function print_part()
{
  (( $1 )) || return 0
  typeset ret
  ret="$1 $2"
  (( $1 == 1 )) || ret="${ret}s"
  printf "$ret "
}
function time_offset()
{
  typeset years months days hours minutes seconds
  minutes="$(( $1 / 60 % 60 ))"
  hours="$(( $1 / 3600 % 24 ))"
  days="$(( $1 / 86400 % 31 ))"
  months="$(( $1 / 2678400 % 12 ))"
  years="$(( $1 / 31536000 ))"
  seconds="$(( $1 % 60 ))"
  for part in year month day hour minute second
  do eval "print_part \${${part}s} ${part}"
  done
}
function n()
{
  typeset return_status
  typeset __n_time=$( date +%s )
  if "$@"
  then return_status=0
  else return_status=$?
  fi
  __n_time=$(( $( date +%s ) - __n_time ))
  if
    (( __n_time > ${n_time:-10} ))
  then
    notify-send --app-name="N $1" "
Finished: $*
Took: $(time_offset __n_time)
Status: $return_status
"
    fi;
    return $return_status
}
__backtrace()
{
  typeset counter
  counter=0
  while caller $counter
  do : $(( counter+=1 ))
  done
}
if ! which mcedit >/dev/null
then
  mcedit()
  {
    vim "$@"
  }
fi
if ! command -v rvm >/dev/null 2>&1
then
  rvm()
  {
    echo "no rvm"
  }
fi

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