scripts/shader-audit.sh

   1 #!/bin/sh
   2
   3 LF="
   4 "
   5
   6 normalize()
   7 {
   8         echo "$1" | sed 's/\.\(tga\|jpg\|png\)$//'
   9 }
  10
  11 textures_used=
  12 # $1 = shader
  13 # $2 = texture
  14 # $3 = self | map | animmap | editorimage
  15 use_texture()
  16 {
  17         # does texture exist?
  18         if \
  19                 [ -f "../$2.tga" ] || \
  20                 [ -f "../$2.jpg" ] || \
  21                 [ -f "../$2.png" ]; then
  22                 :
  23         else
  24                 if [ "$3" = "self" ]; then
  25                         return
  26                 else
  27                         echo "(EE) shader $1 uses non-existing texture $2"
  28                 fi
  29         fi
  30         textures_used="$textures_used$LF$2"
  31
  32         # TODO verify shader -> texture name
  33 }
  34
  35 parsing_shader=
  36 parse_shaderstage()
  37 {
  38         while read L A1 A2 Aother; do
  39                 case "$L" in
  40                         map)
  41                                 case "$A1" in
  42                                         '$lightmap')
  43                                                 ;;
  44                                         *)
  45                                                 use_texture "$parsing_shader" "`normalize "$A1"`" map
  46                                                 ;;
  47                                 esac
  48                                 ;;
  49                         animmap)
  50                                 for X in $A2 $Aother; do
  51                                         use_texture "$parsing_shader" "`normalize "$X"`" animmap
  52                                 done
  53                                 ;;
  54                         '}')
  55                                 break
  56                                 ;;
  57                         *)
  58                                 ;;
  59                 esac
  60         done
  61 }
  62
  63 parse_shader()
  64 {
  65         use_texture "$parsing_shader" "$parsing_shader" self
  66         while read L A1; do
  67                 case "$L" in
  68                         qer_editorimage\ *)
  69                                 use_texture "$parsing_shader" "$A1" editorimage
  70                                 ;;
  71                         '{')
  72                                 parse_shaderstage
  73                                 ;;
  74                         '}')
  75                                 break
  76                                 ;;
  77                         *)
  78                                 ;;
  79                 esac
  80         done
  81 }
  82
  83 parse_shaderfile()
  84 {
  85         while read L; do
  86                 case "$L" in
  87                         textures/*)
  88                                 parsing_shader="`normalize "$L"`"
  89                                 if [ x"$L" != x"$parsing_shader" ]; then
  90                                         echo "(WW) normalized shader name $L to $parsing_shader"
  91                                 fi
  92                                 ;;
  93                         '{')
  94                                 parse_shader
  95                                 ;;
  96                         *)
  97                                 ;;
  98                 esac
  99         done
 100 }
 101
 102 strip_comments()
 103 {
 104         sed 's,//.*,,g; s,\r, ,g; s,\t, ,g; s,  *, ,g; s, $,,; s,^ ,,; /^$/ d'
 105 }
 106
 107 t=`mktemp`
 108 for X in *.shader; do
 109         strip_comments < "$X" > "$t"
 110         parse_shaderfile < "$t"
 111 done
 112 rm -f "$t"
 113
 114 textures_avail=`( cd ..; find textures/ -type f -not -name '*_norm.*' -not -name '*_glow.*' -not -name '*_gloss.*' ) | while IFS= read -r T; do normalize "$T"; done | sort -u`
 115 textures_used=`echo "${textures_used#$LF}" | sort -u`
 116
 117 echo "$textures_used$LF$textures_used$LF$textures_avail" | sort | uniq -u | while IFS= read -r L; do
 118         echo "(EE) texture $L is not referenced by any shader"
 119 done