code.delx.au - dotfiles/blob - .bash/interactive

   1 #! bash
   2
   3 # Check for unsupported TERM variable
   4 if ! tput init &> /dev/null; then
   5         echo "Warning! TERM=$TERM unsupported, using TERM=xterm"
   6         export TERM=xterm
   7 fi
   8
   9
  10
  11 # Fancy PS1 with revision control status for git, hg, svn
  12
  13 [ -r /usr/share/git/completion/git-prompt.sh ] && source /usr/share/git/completion/git-prompt.sh
  14 function my_git_ps1 {
  15         find_up_recurse .git || return
  16         GIT_PS1_SHOWDIRTYSTATE=1 \
  17         GIT_PS1_SHOWUNTRACKEDFILES=1 \
  18         __git_ps1 2> /dev/null
  19 }
  20
  21 function my_hg_ps1 {
  22         find_up_recurse .hg || return
  23         b="$(hg branch 2>/dev/null)" || return
  24         s="$(hg status | cut -c1 | sort -u | tr -d " \n")"
  25         echo -n " ($b"
  26         [ -n "$s" ] && echo -n " $s"
  27         echo -n ")"
  28 }
  29
  30 function my_svn_ps1 {
  31         find_up_recurse .svn || return
  32         s="$(svn status --ignore-externals 2>/dev/null | cut -c1 | sort -u | tr -d " \n")"
  33         [ -z "$s" ] && return
  34         echo -n " ($s)"
  35 }
  36
  37 if [ -z "$debian_chroot" -a -r /etc/debian_chroot ]; then
  38         debian_chroot=$(cat /etc/debian_chroot)
  39 fi
  40 PS1='${debian_chroot:+($debian_chroot)}'
  41 PS1="$PS1"'\[\033[00;31m\]\u@\h\[\033[00m\]:\[\033[00;34m\]\w\[\033[00m\]'
  42 PS1="$PS1"'\[\033[00;36m\]$(my_git_ps1 ; my_hg_ps1 ; my_svn_ps1)\[\033[00m\]'
  43 PS1="$PS1"'\n\$ '
  44
  45
  46
  47
  48 # ls colours
  49 eval $(TERM=xterm dircolors 2> /dev/null)
  50
  51 if [ "${DARKTERM:-1}" -eq 1 ]; then
  52
  53         # Sets colour scheme in apps like Vim
  54         export COLORFGBG="15;0"
  55
  56         # Bold ls colours
  57         LS_COLORS="$(echo "${LS_COLORS}" | sed 's/00;/01;/g')"
  58         LSCOLORS="ExFxCxDxBxEGEDABAGACAD" # BSD ls
  59         PS1="$(echo "${PS1}" | sed 's/00;/01;/g')"
  60
  61 else
  62
  63         # Sets colour scheme in apps like Vim
  64         export COLORFGBG="0;15"
  65
  66         # Unbold ls colours
  67         LS_COLORS="$(echo "${LS_COLORS}" | sed 's/01;/00;/g')"
  68         LSCOLORS="exfxcxdxbxegedabagacad" # BSD ls
  69 fi
  70
  71
  72 # xterm titlebar displays 'hostname:workingdir'
  73 if tput hs || tput tsl &> /dev/null; then
  74         PROMPT_COMMAND='tput tsl; echo -n "$(hostname| cut -d. -f1):${PWD/$HOME/~}"; tput fsl;'
  75 fi
  76
  77 # screen window displays current command
  78 case "${TERM}" in
  79 screen*)
  80         PROMPT_COMMAND="$PROMPT_COMMAND echo -ne '\033k\033\\'"
  81         ;;
  82 esac
  83
  84 # Useful aliases
  85 alias ls='ls --color=auto'
  86 alias ll='ls -hlF'
  87 alias la='ls -ha'
  88 alias  l='ls -halF'
  89 alias f='find . -iname'
  90 alias webshare='python -c "import SimpleHTTPServer; SimpleHTTPServer.test()"'
  91 alias rm='rm -i'
  92 alias less='less -R'
  93 alias grep='grep --color=auto --exclude "*.svn-base"'
  94 alias scp='scp -o ControlPath=none'
  95 alias bc='bc -ql'
  96 alias vv='vncviewer -encodings "tight hextile copyrect"'
  97 alias watch='watch -n1'
  98 alias sudo='sudo ' # ability to use aliases with sudo
  99 alias sudosu='sudo su -l -s /bin/bash'
 100 alias _psresources='ps -weo pid,user:16,%cpu,%mem,stat,start_time,bsdtime,args'
 101 alias pscpu='_psresources --sort -%cpu|less -S'
 102 alias psmem='_psresources --sort -%mem|less -S'
 103 alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 104 alias pstime='ps -weo pid,user:16,lstart,args --sort start_time|less -S'
 105
 106
 107 # Colorful man pages
 108 function man {
 109     env \
 110                 LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 111                 LESS_TERMCAP_me=$'\E[0m' \
 112                 LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 113                 LESS_TERMCAP_ue=$'\E[0m' \
 114     man "$@"
 115 }
 116
 117 # Usage: mcd somedir
 118 # Creates the directory if it doesn't exist, and changes into it
 119 function mcd {
 120         mkdir -p "${1}" &&
 121         cd "${1}"
 122 }
 123
 124 # Usage: vimf somefile
 125 # Does a recursive search of the current directory for somefile, then edits it
 126 function vimf {
 127         find . -iname "${1}" -exec vim '{}' +
 128 }
 129
 130 # Sets the nice and ionice priorities for the current shell to the lowest values
 131 function slowshell {
 132         ionice -c 3 -p $$
 133         renice -n 19 -p $$
 134 }
 135
 136
 137 # Bash should check the terminal size after every command terminates
 138 shopt -s checkwinsize
 139
 140 # Don't attempt to tab-complete an empty line
 141 shopt -s no_empty_cmd_completion
 142
 143
 144 # Display return codes on error
 145 function print_exit_code {
 146         _exit_msg="\033[01;33mexit code: $?\033[00m"
 147         if [ -z "${BASH_SOURCE[1]}" ]; then
 148                 echo -e "$_exit_msg"
 149         fi
 150         unset _exit_msg
 151 }
 152 trap print_exit_code ERR
 153
 154
 155
 156 # Local customisations
 157 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 158
 159 # Load bash completion if available
 160 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 161