File: verdict.sh
   1 #!/bin/sh
   2 
   3 # The MIT License (MIT)
   4 #
   5 # Copyright © 2020-2025 pacman64
   6 #
   7 # Permission is hereby granted, free of charge, to any person obtaining a copy
   8 # of this software and associated documentation files (the “Software”), to deal
   9 # in the Software without restriction, including without limitation the rights
  10 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 # copies of the Software, and to permit persons to whom the Software is
  12 # furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice shall be included in
  15 # all copies or substantial portions of the Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23 # SOFTWARE.
  24 
  25 
  26 # verdict [command...] [arguments...]
  27 #
  28 # Run the command given, colorfully showing its exit code on failure. On
  29 # success, the exit code is 0, but it's not shown explicitly.
  30 #
  31 # A colorblind-friendly blue is used instead of green if either environment
  32 # variable COLORBLIND or COLOR_BLIND is declared and set to 1.
  33 
  34 
  35 case "$1" in
  36     -h|--h|-help|--help)
  37         awk '/^# +verdict /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  38         exit 0
  39     ;;
  40 esac
  41 
  42 [ "$1" = "--" ] && shift
  43 
  44 if [ -z "$1" ]; then
  45     awk '/^# +verdict /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
  46     exit 0
  47 fi
  48 
  49 # handle INT signals, which usually happen by pressing Ctrl+C
  50 trap "printf \"\\n\\e[38;2;204;0;0m%s \\e[48;2;204;0;0m\\e[38;2;255;255;255m failed with error code 130 \\e[0m\\n\" \"$*\"; exit 130" INT
  51 
  52 "$@"
  53 code=$?
  54 
  55 if [ "${code}" -eq 0 ]; then
  56     if [ "${COLORBLIND}" = 1 ] || [ "${COLOR_BLIND}" = 1 ]; then
  57         # color-blind-friendly version using a blue `success` message
  58         printf "\n\e[38;2;0;95;215m%s \e[48;2;0;95;215m\e[38;2;255;255;255m succeeded \e[0m\n" "$*"
  59     else
  60         printf "\n\e[38;2;0;135;95m%s \e[48;2;0;135;95m\e[38;2;255;255;255m succeeded \e[0m\n" "$*"
  61     fi
  62 else
  63     printf "\n\e[38;2;204;0;0m%s \e[48;2;204;0;0m\e[38;2;255;255;255m failed with error code %d \e[0m\n" "$*" "${code}"
  64 fi >&2
  65 
  66 exit "${code}"