granicus.if.org Git - strace/blob - maint/gen-contributors-list.sh

   1 #!/bin/sh -efu
   2 # Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
   3 # All rights reserved.
   4 #
   5 # SPDX-License-Identifier: LGPL-2.1-or-later
   6
   7 print_help()
   8 {
   9         cat <<__EOF__
  10 $0 [-h|--help] [-e|--include-email] [-|--stdin] [LAST_COMMIT [FIRST_COMMIT|--initial]]"
  11
  12 Prints list of contributors for the specified range of commits.
  13
  14 Options:
  15   -h, --help    Print this message and exit.
  16   -e, --include-email
  17                 Include e-mail address of each contributer in the output.
  18   -, --stdin    Read the list of additional contributors from stdin.
  19   LAST_COMMIT   Last commit of the range. Default value is HEAD.
  20   FIRST_COMMIT  First commit in the range. Default is the last commit tagged
  21                 with a tag started with the character 'v'. If "--initial"
  22                 is specified, the first commit of the branch is used.
  23 __EOF__
  24 }
  25
  26 get_commit_id()
  27 {
  28         git rev-parse --verify "$1^{commit}"
  29 }
  30
  31 SCRIPT='s/^[^:@<]\+:[[:space:]]*"\?\([^"<@[:space:]][^"<@]*\)"\?[[:space:]]\(<[^<@]\+@[^>]\+>\).*/\1 \2/p'
  32 # Script for adding angle brackets to e-mail addresses in case they are absent
  33 SCRIPT_NORM_EMAILS='s/[^[:space:]<@]\+@[^>]\+$/<\0>/'
  34 MATCH_OUT='^\([^<@[:space:]][^<@]*\)[[:space:]]\(<[^<@]\+@[^>]\+>\)$'
  35 OUT_EMAILS='\1 \2'
  36 OUT_NO_EMAILS='\1'
  37
  38 read_stdin=0
  39 include_email=0
  40
  41 while true; do
  42         case "${1:-}" in
  43         -h|--help)
  44                 print_help
  45                 exit 1
  46                 ;;
  47         -e|--include-email)
  48                 include_email=1
  49                 ;;
  50         -|--stdin)
  51                 read_stdin=1
  52                 ;;
  53         *)
  54                 break
  55                 ;;
  56         esac
  57
  58         shift
  59 done
  60
  61 what="$(get_commit_id "${1:-@}")"
  62 since="${2:-$(git describe --abbrev=0 --match='v*' "$what")}"
  63
  64 case "$since" in
  65 --initial)
  66         since="$(git rev-list --max-parents=0 $what)"
  67         ;;
  68 *)
  69         since="$(get_commit_id "$since")"
  70         ;;
  71 esac
  72
  73 if [ 0 = "$include_email" ]; then
  74         out="$OUT_NO_EMAILS"
  75 else
  76         out="$OUT_EMAILS"
  77 fi
  78
  79 {
  80         git log "^$since" "$what" | sed -n "$SCRIPT"
  81         [ 0 = "$read_stdin" ] || sed "$SCRIPT_NORM_EMAILS"
  82 } \
  83         | git check-mailmap --stdin \
  84         | LC_COLLATE=C sort -u \
  85         | sed "s/$MATCH_OUT/$out/"