scripts/shader-audit.sh

   1 #!/bin/sh
   2
   3 use_texture()
   4 {
   5         echo "$1 uses texture $2"
   6 }
   7
   8 parsing_shader=
   9
  10 parse_shaderstage()
  11 {
  12         while read L A1 A2 Aother; do
  13                 case "$L" in
  14                         map)
  15                                 case "$A1" in
  16                                         '$lightmap')
  17                                                 ;;
  18                                         *)
  19                                                 use_texture "$parsing_shader" "$A1"
  20                                                 ;;
  21                                 esac
  22                                 ;;
  23                         animmap)
  24                                 for X in $A2 $Aother; do
  25                                         use_texture "$parsing_shader" "$X"
  26                                 done
  27                                 ;;
  28                         '}')
  29                                 break
  30                                 ;;
  31                         *)
  32                                 ;;
  33                 esac
  34         done
  35 }
  36
  37 parse_shader()
  38 {
  39         while read L A1; do
  40                 case "$L" in
  41                         qer_editorimage\ *)
  42                                 use_texture "$parsing_shader" "$A1"
  43                                 ;;
  44                         '{')
  45                                 parse_shaderstage
  46                                 ;;
  47                         '}')
  48                                 break
  49                                 ;;
  50                         *)
  51                                 ;;
  52                 esac
  53         done
  54 }
  55
  56 parse_shaderfile()
  57 {
  58         while read L; do
  59                 case "$L" in
  60                         textures/*)
  61                                 parsing_shader="$L"
  62                                 ;;
  63                         '{')
  64                                 parse_shader
  65                                 ;;
  66                         *)
  67                                 ;;
  68                 esac
  69         done
  70 }
  71
  72 strip_comments()
  73 {
  74         sed 's,//.*,,g; s,\r, ,g; s,\t, ,g; s,  *, ,g; s, $,,; s,^ ,,; /^$/ d'
  75 }
  76
  77 t=`mktemp`
  78 for X in *.shader; do
  79         strip_comments < "$X" > "$t"
  80         parse_shaderfile < "$t"
  81 done
  82 rm -f "$t"
  83
  84 ( cd ../textures; find */ -type f -not -name '*_norm.*' -not -name '*_glow.*' -not -name '*_gloss.*' -print ) | while IFS= read -r TEX; do
  85         TEX=${TEX%.*}
  86         # does it have a shader?
  87         if ! grep -Ei '^[[:space:]]*((animmap|map|qer_editorimage)[[:space:]]+)?"?textures/'"$TEX"'(\.tga)?"?[[:space:]]*(//.*)?$' *.shader >/dev/null; then
  88                 echo "No shader defined using $TEX, please add one"
  89         fi
  90 done