ceph/src/seastar/dpdk/devtools/check-maintainers.sh

   1 #! /bin/sh
   2 # SPDX-License-Identifier: BSD-3-Clause
   3 # Copyright 2015 6WIND S.A.
   4
   5 # Do some basic checks in MAINTAINERS file
   6
   7 cd $(dirname $0)/..
   8
   9 # speed up by ignoring Unicode details
  10 export LC_ALL=C
  11
  12 # Get files matching paths with wildcards and / meaning recursing
  13 files () # <path> [<path> ...]
  14 {
  15         if [ -z "$1" ] ; then
  16                 return
  17         fi
  18         if [ -d .git ] ; then
  19                 git ls-files "$1"
  20         else
  21                 find "$1" -type f |
  22                 sed 's,^\./,,'
  23         fi |
  24         # if not ended by /
  25         if ! echo "$1" | grep -q '/[[:space:]]*$' ; then
  26                 # filter out deeper directories
  27                 sed "/\(\/[^/]*\)\{$(($(echo "$1" | grep -o / | wc -l) + 1))\}/d"
  28         else
  29                 cat
  30         fi
  31         # next path
  32         shift
  33         files "$@"
  34 }
  35
  36 # Get all files matching F: and X: fields
  37 parse_fx () # <index file>
  38 {
  39         IFS='
  40 '
  41         # parse each line excepted underlining
  42         for line in $( (sed '/^-\+$/d' $1 ; echo) | sed 's,^$,§,') ; do
  43                 if echo "$line" | grep -q '^§$' ; then
  44                         # empty line delimit end of section
  45                         whitelist=$(files $flines)
  46                         blacklist=$(files $xlines)
  47                         match=$(aminusb "$whitelist" "$blacklist")
  48                         if [ -n "$whitelist" ] ; then
  49                                 printf "# $title "
  50                                 maintainers=$(echo "$maintainers" | sed -r 's,.*<(.*)>.*,\1,')
  51                                 maintainers=$(printf "$maintainers" | sed -e 's,^,<,' -e 's,$,>,')
  52                                 echo $maintainers
  53                         fi
  54                         if [ -n "$match" ] ; then
  55                                 echo "$match"
  56                         fi
  57                         # flush section
  58                         unset maintainers
  59                         unset flines
  60                         unset xlines
  61                 elif echo "$line" | grep -q '^[A-Z]: ' ; then
  62                         # maintainer
  63                         maintainers=$(add_line_to_if "$line" "$maintainers" 'M: ')
  64                         # file matching pattern
  65                         flines=$(add_line_to_if "$line" "$flines" 'F: ')
  66                         # file exclusion pattern
  67                         xlines=$(add_line_to_if "$line" "$xlines" 'X: ')
  68                 else # assume it is a title
  69                         title="$line"
  70                 fi
  71         done
  72 }
  73
  74 # Check patterns in F: and X:
  75 check_fx () # <index file>
  76 {
  77         IFS='
  78 '
  79         for line in $(sed -n 's,^[FX]: ,,p' $1 | tr '*' '#') ; do
  80                 line=$(printf "$line" | tr '#' '*')
  81                 match=$(files "$line")
  82                 if [ -z "$match" ] ; then
  83                         echo "$line"
  84                 fi
  85         done
  86 }
  87
  88 # Add a line to a set of lines if it begins with right pattern
  89 add_line_to_if () # <new line> <lines> <head pattern>
  90 {
  91         (
  92                 echo "$2"
  93                 echo "$1" | sed -rn "s,^$3(.*),\1,p"
  94         ) |
  95         sed '/^$/d'
  96 }
  97
  98 # Subtract two sets of lines
  99 aminusb () # <lines a> <lines b>
 100 {
 101         printf "$1\n$2\n$2" | sort | uniq -u | sed '/^$/d'
 102 }
 103
 104 printf 'sections: '
 105 parsed=$(parse_fx MAINTAINERS)
 106 echo "$parsed" | grep -c '^#'
 107 printf 'with maintainer: '
 108 echo "$parsed" | grep -c '^#.*@'
 109 printf 'maintainers: '
 110 grep '^M:.*<' MAINTAINERS | sort -u | wc -l
 111
 112 echo
 113 echo '##########'
 114 echo '# orphan areas'
 115 echo '##########'
 116 echo "$parsed" | sed -rn 's,^#([^@]*)$,\1,p' | uniq
 117
 118 echo
 119 echo '##########'
 120 echo '# files not listed'
 121 echo '##########'
 122 all=$(files ./)
 123 listed=$(echo "$parsed" | sed '/^#/d' | sort -u)
 124 aminusb "$all" "$listed"
 125
 126 echo
 127 echo '##########'
 128 echo '# wrong patterns'
 129 echo '##########'
 130 check_fx MAINTAINERS
 131
 132 # TODO: check overlaps