LXR busybox/scripts/fix

   1#!/bin/bash
   2# Whitespace fixer
   3# Usage: fix_ws [dir]...
   4
   5temp="/tmp/fix_ws.$$.$RANDOM"
   6
   7# Using $'xxx' bashism
   8begin8sp_tab=$'s/^        /\t/'
   9beginchar7sp_chartab=$'s/^\\([^ \t]\\)       /\\1\t/'
  10tab8sp_tabtab=$'s/\t        /\t\t/g'
  11tab8sptab_tabtabtab=$'s/\t        \t/\t\t\t/g'
  12begin17sptab_tab=$'s/^ \\{1,7\\}\t/\t/'
  13tab17sptab_tabtab=$'s/\t \\{1,7\\}\t/\t\t/g'
  14trailingws_=$'s/[ \t]*$//'
  15
  16#>fix_ws.diff
  17
  18find "$@" -type f \
  19| while read name; do
  20    test "YES" = "${name/*.bz2/YES}" && continue
  21    test "YES" = "${name/*.gz/YES}" && continue
  22    test "YES" = "${name/*.png/YES}" && continue
  23    test "YES" = "${name/*.gif/YES}" && continue
  24    test "YES" = "${name/*.jpg/YES}" && continue
  25    test "YES" = "${name/*.diff/YES}" && continue
  26    test "YES" = "${name/*.patch/YES}" && continue
  27    # shell testsuite entries are not to be touched too
  28    test "YES" = "${name/*.right/YES}" && continue
  29
  30    if test "YES" = "${name/*.[chsS]/YES}" \
  31        -o "YES" = "${name/*.sh/YES}" \
  32        -o "YES" = "${name/*.txt/YES}" \
  33        -o "YES" = "${name/*.html/YES}" \
  34        -o "YES" = "${name/*.htm/YES}" \
  35        -o "YES" = "${name/*Config.in*/YES}" \
  36    ; then
  37    # More aggressive whitespace fixes for known file types
  38        echo "Formatting: $name" >&2
  39        cat "$name" \
  40        | sed -e "$tab8sptab_tabtabtab" -e "$tab8sptab_tabtabtab" \
  41              -e "$tab8sptab_tabtabtab" -e "$tab8sptab_tabtabtab" \
  42        | sed "$begin17sptab_tab" \
  43        | sed -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  44              -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  45              -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  46        | sed "$trailingws_"
  47    elif test "YES" = "${name/*Makefile*/YES}" \
  48        -o "YES" = "${name/*Kbuild*/YES}" \
  49    ; then
  50    # For Makefiles, never convert "1-7spaces+tab" into "tabtab"
  51        echo "Makefile: $name" >&2
  52        cat "$name" \
  53        | sed -e "$tab8sptab_tabtabtab" -e "$tab8sptab_tabtabtab" \
  54              -e "$tab8sptab_tabtabtab" -e "$tab8sptab_tabtabtab" \
  55        | sed -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  56              -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  57              -e "$tab17sptab_tabtab" -e "$tab17sptab_tabtab" \
  58        | sed "$trailingws_"
  59    else
  60    # Only remove trailing WS for the rest
  61        echo "Removing trailing whitespace: $name" >&2
  62        cat "$name" \
  63        | sed "$trailingws_"
  64    fi >"$temp"
  65
  66#    diff -u "$temp" "$name" >>fix_ws.diff
  67
  68    # Conserve mode/symlink:
  69    cat "$temp" >"$name"
  70done
  71rm "$temp" 2>/dev/null
  72