util/openssl-format-source

   1 #!/bin/sh
   2 #
   3 # Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the Apache License 2.0 (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10 #
  11 # openssl-format-source
  12 # - format source tree according to OpenSSL coding style using indent
  13 #
  14 # usage:
  15 #   openssl-format-source [-v] [-n] [file|directory] ...
  16 #
  17 # note: the indent options assume GNU indent v2.2.10 which was released
  18 #       Feb-2009 so if you have an older indent the options may not
  19 #       match what is expected
  20 #
  21 # any marked block comment blocks have to be moved to align manually after
  22 # the reformatting has been completed as marking a block causes indent to
  23 # not move it at all ...
  24 #
  25
  26 PATH=/usr/local/bin:/bin:/usr/bin:$PATH
  27 export PATH
  28 HERE="`dirname $0`"
  29
  30 set -e
  31
  32 INDENT=indent
  33 uname -s | grep BSD > /dev/null && type gindent > /dev/null 2>&1 && INDENT=gindent
  34
  35 if [ $# -eq 0 ]; then
  36   echo "usage: $0 [-v] [-n] [-c] [sourcefile|sourcedir] ..." >&2
  37   exit 1
  38 fi
  39
  40 VERBOSE=false
  41 DONT=false
  42 STOPARGS=false
  43 COMMENTS=false
  44 CHANGED=false
  45 DEBUG=""
  46
  47 # for this exercise, we want to force the openssl style, so we roll
  48 # our own indent profile, which is at a well known location
  49 INDENT_PROFILE="$HERE/indent.pro"
  50 export INDENT_PROFILE
  51 if [ ! -f "$INDENT_PROFILE" ]; then
  52   echo "$0: unable to locate the openssl indent.pro file" >&2
  53   exit 1
  54 fi
  55
  56 # Extra arguments; for adding the comment-formatting
  57 INDENT_ARGS=""
  58 for i
  59 do
  60   if [ "$STOPARGS" != "true" ]; then
  61     case $i in
  62       --) STOPARGS="true"; continue;;
  63       -n) DONT="true"; continue;;
  64       -v) VERBOSE="true";
  65           echo "INDENT_PROFILE=$INDENT_PROFILE";
  66           continue;;
  67       -c) COMMENTS="true";
  68           INDENT_ARGS="-fc1 -fca -cdb -sc";
  69           continue;;
  70       -nc) COMMENTS="true";
  71           continue;;
  72       -d) DEBUG='eval tee "$j.pre" |'
  73           continue;;
  74     esac
  75   fi
  76
  77   if [ -d "$i" ]; then
  78     LIST=`find "$i" -name '*.[ch]' -print`
  79   else
  80     if [ ! -f "$i" ]; then
  81       echo "$0: source file not found: $i" >&2
  82       exit 1
  83     fi
  84     LIST="$i"
  85   fi
  86
  87   for j in $LIST
  88   do
  89     # ignore symlinks - we only ever process the base file - so if we
  90     # expand a directory tree we need to ignore any located symlinks
  91     if [ -d "$i" ]; then
  92       if [ -h "$j" ]; then
  93         continue;
  94       fi
  95     fi
  96
  97     if [ "$DONT" = "false" ]; then
  98       tmp=$(mktemp /tmp/indent.XXXXXX)
  99       trap 'rm -f "$tmp"' HUP INT TERM EXIT
 100
 101       case `basename $j` in
 102         # the list of files that indent is unable to handle correctly
 103         # that we simply leave alone for manual formatting now
 104         obj_dat.h|aes_core.c|aes_x86core.c|ecp_nistz256.c)
 105           echo "skipping $j"
 106           ;;
 107         *)
 108           if [ "$COMMENTS" = "true" ]; then
 109             # we have to mark single line comments as /*- ...*/ to stop indent
 110             # messing with them, run expand then indent as usual but with the
 111             # the process-comments options and then undo that marking, and then
 112             # finally re-run indent without process-comments so the marked-to-
 113             # be-ignored comments we did automatically end up getting moved
 114             # into the right position within the code as indent leaves marked
 115             # comments entirely untouched - we appear to have no way to avoid
 116             # the double processing and get the desired output
 117             cat "$j" | \
 118             expand | \
 119             perl -0 -np \
 120               -e 's/(\n#[ \t]*ifdef[ \t]+__cplusplus\n[^\n]*\n#[ \t]*endif\n)/\n\/**INDENT-OFF**\/$1\/**INDENT-ON**\/\n/g;' \
 121               -e 's/(\n\/\*\!)/\n\/**/g;' \
 122               -e 's/(STACK_OF|LHASH_OF)\(([^ \t,\)]+)\)( |\n)/$1_$2_$3/g;' \
 123               | \
 124             perl -np \
 125               -e 's/^([ \t]*)\/\*([ \t]+.*)\*\/[ \t]*$/my ($x1,$x2) = ($1, $2); if (length("$x1$x2")<75 && $x2 !~ m#^\s*\*INDENT-(ON|OFF)\*\s*$#) {$c="-"}else{$c=""}; "$x1\/*$c$x2*\/"/e;' \
 126               -e 's/^\/\* ((Copyright|=|----).*)$/\/*-$1/;' \
 127               -e 's/^((DECLARE|IMPLEMENT)_.*)$/\/**INDENT-OFF**\/\n$1\n\/**INDENT-ON**\//;' \
 128               -e 's/^([ \t]*(make_dh|make_dh_bn|make_rfc5114_td)\(.*\)[ \t,]*)$/\/**INDENT-OFF**\/\n$1\n\/**INDENT-ON**\//;' \
 129               -e 's/^(ASN1_ADB_TEMPLATE\(.*)$/\/**INDENT-OFF**\/\n$1\n\/**INDENT-ON**\//;' \
 130               -e 's/^((ASN1|ADB)_.*_(end|END)\(.*[\){=,;]+[ \t]*)$/$1\n\/**INDENT-ON**\//;' \
 131               -e '/ASN1_(ITEM_ref|ITEM_ptr|ITEM_rptr|PCTX)/ || s/^((ASN1|ADB)_[^\*]*[){=,]+[ \t]*)$/\/**INDENT-OFF**\/\n$1/;' \
 132               -e 's/^(} (ASN1|ADB)_[^\*]*[\){=,;]+)$/$1\n\/**INDENT-ON**\//;' \
 133               | \
 134               $DEBUG $INDENT $INDENT_ARGS | \
 135               perl -np \
 136                 -e 's/^([ \t]*)\/\*-(.*)\*\/[ \t]*$/$1\/*$2*\//;' \
 137                 -e 's/^\/\*-((Copyright|=|----).*)$/\/* $1/;' \
 138               | $INDENT | \
 139               perl -0 -np \
 140                 -e 's/\/\*\*INDENT-(ON|OFF)\*\*\/\n//g;' \
 141               | perl -np \
 142                 -e 's/(STACK_OF|LHASH_OF)_([^ \t,]+)_( |\/)/$1($2)$3/g;' \
 143                 -e 's/(STACK_OF|LHASH_OF)_([^ \t,]+)_$/$1($2)/g;' \
 144               | perl "$HERE"/su-filter.pl \
 145               > "$tmp"
 146           else
 147             expand "$j" | $INDENT $INDENT_ARGS > "$tmp"
 148           fi;
 149           if cmp -s "$tmp" "$j"; then
 150             if [ "$VERBOSE" = "true" ]; then
 151               echo "$j unchanged"
 152             fi
 153             rm "$tmp"
 154           else
 155             if [ "$VERBOSE" = "true" ]; then
 156               echo "$j changed"
 157             fi
 158             CHANGED=true
 159             mv "$tmp" "$j"
 160           fi
 161           ;;
 162       esac
 163     fi
 164   done
 165 done
 166
 167
 168 if [ "$VERBOSE" = "true" ]; then
 169   echo
 170   if [ "$CHANGED" = "true" ]; then
 171     echo "SOURCE WAS MODIFIED"
 172   else
 173     echo "SOURCE WAS NOT MODIFIED"
 174   fi
 175 fi