src/sh/dpkg-error.sh

   1 #
   2 # Copyright © 2010 Raphaël Hertzog <hertzog@debian.org>
   3 # Copyright © 2011-2015 Guillem Jover <guillem@debian.org>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17 #
  18 # shellcheck shell=sh
  19
  20 # Standard ANSI colors and attributes.
  21 COLOR_NORMAL=''
  22 COLOR_RESET='\e[0m'
  23 COLOR_BOLD='\e[1m'
  24 COLOR_BLACK='\e[30m'
  25 COLOR_RED='\e[31m'
  26 COLOR_GREEN='\e[32m'
  27 COLOR_YELLOW='\e[33m'
  28 COLOR_BLUE='\e[34m'
  29 COLOR_MAGENTA='\e[35m'
  30 COLOR_CYAN='\e[36m'
  31 COLOR_WHITE='\e[37m'
  32 COLOR_BOLD_BLACK='\e[1;30m'
  33 COLOR_BOLD_RED='\e[1;31m'
  34 COLOR_BOLD_GREEN='\e[1;32m'
  35 COLOR_BOLD_YELLOW='\e[1;33m'
  36 COLOR_BOLD_BLUE='\e[1;34m'
  37 COLOR_BOLD_MAGENTA='\e[1;35m'
  38 COLOR_BOLD_CYAN='\e[1;36m'
  39 COLOR_BOLD_WHITE='\e[1;37m'
  40
  41 setup_colors()
  42 {
  43   : "${DPKG_COLORS=auto}"
  44
  45   case "$DPKG_COLORS" in
  46   auto)
  47     if [ -t 1 ]; then
  48       USE_COLORS=yes
  49     else
  50       USE_COLORS=no
  51     fi
  52     ;;
  53   always)
  54     USE_COLORS=yes
  55     ;;
  56   *)
  57     USE_COLORS=no
  58     ;;
  59   esac
  60
  61   if [ $USE_COLORS = yes ]; then
  62     COLOR_PROG="$COLOR_BOLD"
  63     COLOR_INFO="$COLOR_GREEN"
  64     COLOR_NOTICE="$COLOR_YELLOW"
  65     COLOR_WARN="$COLOR_BOLD_YELLOW"
  66     COLOR_ERROR="$COLOR_BOLD_RED"
  67   else
  68     COLOR_RESET=""
  69   fi
  70   FMT_PROG="$COLOR_PROG$PROGNAME$COLOR_RESET"
  71 }
  72
  73 debug() {
  74   if [ -n "$DPKG_DEBUG" ]; then
  75     echo "DEBUG: $FMT_PROG: $*" >&2
  76   fi
  77 }
  78
  79 error() {
  80   echo "$FMT_PROG: ${COLOR_ERROR}error${COLOR_RESET}: $*" >&2
  81   exit 1
  82 }
  83
  84 warning() {
  85   echo "$FMT_PROG: ${COLOR_WARN}warning${COLOR_RESET}: $*" >&2
  86 }
  87
  88 badusage() {
  89   echo "$FMT_PROG: ${COLOR_ERROR}error${COLOR_RESET}: $1" >&2
  90   echo >&2
  91   echo "Use '$PROGNAME --help' for program usage information." >&2
  92   exit 1
  93 }