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 # Display return codes on error
  48 function print_exit_code {
  49     _exit_msg="\033[01;33mexit code: $?\033[00m"
  50     if [ -z "${BASH_SOURCE[1]}" ]; then
  51         echo -e "$_exit_msg"
  52     fi
  53     unset _exit_msg
  54 }
  55 trap print_exit_code ERR
  56
  57
  58
  59 # ls colours
  60 eval $(TERM=xterm dircolors 2> /dev/null)
  61
  62 if [ "${DARKTERM:-1}" -eq 1 ]; then
  63
  64     # Sets colour scheme in apps like Vim
  65     export COLORFGBG="15;0"
  66
  67     # Bold ls colours
  68     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/00;/01;/g')"
  69     LSCOLORS="ExFxCxDxBxEGEDABAGACAD" # BSD ls
  70     PS1="$(echo "${PS1}" | sed 's/00;/01;/g')"
  71
  72 else
  73
  74     # Sets colour scheme in apps like Vim
  75     export COLORFGBG="0;15"
  76
  77     # Unbold ls colours
  78     LS_COLORS="$(echo "${LS_COLORS}" | sed 's/01;/00;/g')"
  79     LSCOLORS="exfxcxdxbxegedabagacad" # BSD ls
  80 fi
  81
  82
  83 # xterm titlebar displays 'hostname:workingdir'
  84 if tput hs || tput tsl &> /dev/null; then
  85     PROMPT_COMMAND='tput tsl; echo -n "$(hostname| cut -d. -f1):${PWD/$HOME/~}"; tput fsl;'
  86 fi
  87
  88 # screen window displays current command
  89 case "${TERM}" in
  90 screen*)
  91     PROMPT_COMMAND="$PROMPT_COMMAND echo -ne '\033k\033\\'"
  92     ;;
  93 esac
  94
  95 # Useful aliases
  96 alias ls='ls --color=auto'
  97 alias ll='ls -hlF'
  98 alias la='ls -ha'
  99 alias  l='ls -halF'
 100 alias f='find . -iname'
 101 alias webshare='python3 -mhttp.server'
 102 alias rm='rm -i'
 103 alias less='less -R'
 104 alias grep='grep --color=auto --exclude "*.svn-base"'
 105 alias scp='scp -o ControlPath=none'
 106 alias bc='bc -ql'
 107 alias vv='vncviewer -encodings "tight hextile copyrect"'
 108 alias watch='watch -n1'
 109 alias sudo='sudo ' # ability to use aliases with sudo
 110 alias sudosu='sudo su -l -s /bin/bash'
 111 alias _psresources='ps -weo pid,user:16,%cpu,%mem,stat,start_time,bsdtime,args'
 112 alias pscpu='_psresources --sort -%cpu|less -S'
 113 alias psmem='_psresources --sort -%mem|less -S'
 114 alias pstree='ps --forest -weo pid,user:16,args --sort start_time|less -S'
 115 alias pstime='ps -weo pid,user:16,lstart,args --sort start_time|less -S'
 116
 117
 118 # Super man!
 119 #  Colourful headings
 120 #  Terminal title
 121 function man {
 122     tput tsl; echo "man $@"; tput fsl
 123
 124     env \
 125         LESS_TERMCAP_md=$'\E[01;38;5;74m' \
 126         LESS_TERMCAP_me=$'\E[0m' \
 127         LESS_TERMCAP_us=$'\E[04;38;5;146m' \
 128         LESS_TERMCAP_ue=$'\E[0m' \
 129     man "$@"
 130 }
 131
 132 # Usage: mcd somedir
 133 # Creates the directory if it doesn't exist, and changes into it
 134 function mcd {
 135     mkdir -p "${1}" &&
 136     cd "${1}"
 137 }
 138
 139 # Usage: vimf somefile
 140 # Does a recursive search of the current directory for somefile, then edits it
 141 function vimf {
 142     find . -iname "${1}" -exec vim '{}' +
 143 }
 144
 145 # Sets the nice and ionice priorities for the current shell to the lowest values
 146 function slowshell {
 147     ionice -c 3 -p $$
 148     renice -n 19 -p $$
 149 }
 150
 151
 152 # Bash should check the terminal size after every command terminates
 153 shopt -s checkwinsize
 154
 155 # Don't attempt to tab-complete an empty line
 156 shopt -s no_empty_cmd_completion
 157
 158
 159
 160 # Local customisations
 161 [ -r "${HOME}/.bash/interactive_local" ] && source "${HOME}/.bash/interactive_local"
 162
 163 # Load bash completion if available
 164 [ -r "/etc/bash_completion" ] && source "/etc/bash_completion"
 165