1 #!/bin/sh 2 3 # chkfmt 4 # 5 # COPYRIGHT: Written by John Cunningham Bowler, 2010. 6 # To the extent possible under law, the author has waived all copyright and 7 # related or neighboring rights to this work. This work is published from: 8 # United States. 9 # 10 # Check the format of the source files in the current directory - checks for a 11 # line length of 80 characters max and no tab characters. 12 # 13 # Optionally arguments are files or directories to check. 14 # 15 # -v: output the long lines (makes fixing them easier) 16 # -e: spawn an editor for each file that needs a change ($EDITOR must be 17 # defined). When using -e the script MUST be run from an interactive 18 # command line. 19 verbose= 20 edit= 21 vers= 22 test "$1" = "-v" && { 23 shift 24 verbose=yes 25 } 26 test "$1" = "-e" && { 27 shift 28 if test -n "$EDITOR" 29 then 30 edit=yes 31 32 # Copy the standard streams for the editor 33 exec 3>&0 4>&1 5>&2 34 else 35 echo "chkfmt -e: EDITOR must be defined" >&2 36 exit 1 37 fi 38 } 39 40 # Function to edit a single file - if the file isn't changed ask the user 41 # whether or not to continue. This stuff only works if the script is run from 42 # the command line (otherwise, don't specify -e or you will be sorry). 43 doed(){ 44 cp "$file" "$file".orig 45 "$EDITOR" "$file" 0>&3 1>&4 2>&5 3>&- 4>&- 5>&- || exit 1 46 if cmp -s "$file".orig "$file" 47 then 48 rm "$file".orig 49 echo -n "$file: file not changed, type anything to continue: " >&5 50 read ans 0>&3 51 test -n "$ans" || return 1 52 fi 53 return 0 54 } 55 56 # In beta versions the version string which appears in files can be a little 57 # long and cause spuriously overlong lines. To avoid this subtitute the version 58 # string with a 'standard' version a.b.cc before checking for long lines. 59 if test -r png.h 60 then 61 vers="`sed -n -e \ 62 's/^#define PNG_LIBPNG_VER_STRING .\([0-9]\.[0-9]\.[0-9][0-9a-z]*\).$/\1/p' \ 63 png.h`" 64 echo "chkfmt: checking version $vers" 65 fi 66 if test -z "$vers" 67 then 68 echo "chkfmt: png.h not found, ignoring version number" >&2 69 fi 70 71 test -n "$1" || set -- . 72 find "$@" \( -type d \( -name '.git' -o -name '.libs' -o -name 'projects' \) \ 73 -prune \) -o \( -type f \ 74 ! -name '*.[oa]' ! -name '*.l[oa]' ! -name '*.png' ! -name '*.out' \ 75 ! -name '*.jpg' ! -name '*.patch' ! -name '*.obj' ! -name '*.exe' \ 76 ! -name '*.com' ! -name '*.tar.*' ! -name '*.zip' ! -name '*.ico' \ 77 ! -name '*.res' ! -name '*.rc' ! -name '*.mms' ! -name '*.rej' \ 78 ! -name '*.dsp' ! -name '*.orig' ! -name '*.dfn' ! -name '*.swp' \ 79 ! -name '~*' ! -name '*.3' \ 80 ! -name 'missing' ! -name 'mkinstalldirs' ! -name 'depcomp' \ 81 ! -name 'aclocal.m4' ! -name 'install-sh' ! -name 'Makefile.in' \ 82 ! -name 'ltmain.sh' ! -name 'config*' -print \) | { 83 st=0 84 while read file 85 do 86 case "$file" in 87 *.mak|*[Mm]akefile.*|*[Mm]akefile) 88 # Makefiles require tabs, dependency lines can be this long. 89 check_tabs= 90 line_length=100;; 91 *.awk) 92 # Includes literal tabs 93 check_tabs= 94 # The following is arbitrary 95 line_length=132;; 96 *contrib/*/*.[ch]) 97 check_tabs=yes 98 line_length=96;; 99 *) 100 check_tabs=yes 101 line_length=80;; 102 esac 103 104 # Note that vers can only contain 0-9, . and a-z 105 if test -n "$vers" 106 then 107 sed -e "s/$vers/a.b.cc/g" "$file" >"$file".$$ 108 else 109 cp "$file" "$file".$$ 110 fi 111 splt="`fold -$line_length "$file".$$ | diff -c "$file".$$ -`" 112 rm "$file".$$ 113 114 if test -n "$splt" 115 then 116 echo "$file: lines too long" 117 st=1 118 if test -n "$EDITOR" -a -n "$edit" 119 then 120 doed "$file" || exit 1 121 elif test -n "$verbose" 122 then 123 echo "$splt" 124 fi 125 fi 126 if test -n "$check_tabs" 127 then 128 tab="`tr -c -d '\t' <"$file"`" 129 if test -n "$tab" 130 then 131 echo "$file: file contains tab characters" 132 st=1 133 if test -n "$EDITOR" -a -n "$edit" 134 then 135 doed "$file" || exit 1 136 elif test -n "$verbose" 137 then 138 echo "$splt" 139 fi 140 fi 141 fi 142 done 143 exit $st 144 } 145
