tools/checkpatch.sh

   1 #!/bin/bash
   2 # Check a patch for style errors.
   3 usage="./checkpatch.sh <patch> <tree>"
   4 patch=$1
   5 tree=$2
   6 checkpatch="$tree/tools/checkpatch.pl --no-tree -f"
   7 ignore="ldpd\|babeld"
   8 cwd=${PWD##*/}
   9 dirty=0
  10 stat=0
  11 tmp1=/tmp/f1-$$
  12 tmp2=/tmp/f2-$$
  13
  14 if [[ -z "$1" || -z "$2" ]]; then
  15   echo "$usage"
  16   exit 0
  17 fi
  18
  19 # remove temp directories
  20 rm -rf ${tmp1} ${tmp2}
  21
  22 # save working tree
  23 if git -C $tree status --porcelain | egrep --silent '^(\?\?|.[DM])'; then
  24   echo "Detected dirty tree, caching state..."
  25   dirty=1
  26   git -C $tree config gc.auto 0;
  27   td=$(git -C $tree status -z | grep -z "^[ARM]D" | cut -z -d' ' -f2- | tr '\0' '\n')
  28   INDEX=$(git -C $tree write-tree)
  29   git -C $tree add -f .
  30   WORKTREE=$(git -C $tree write-tree)
  31   echo "Saved index to $INDEX"
  32   echo "Saved working tree to $WORKTREE"
  33 fi
  34
  35 # double check
  36 if git -C $tree status --porcelain | egrep --silent '^(\?\?|.[DM])'; then
  37   echo "[!] git working directory must be clean."
  38   exit 1
  39 fi
  40
  41 git -C $tree reset --hard
  42 git -C $tree apply < $patch
  43 mkdir -p ${tmp1} ${tmp2}
  44 mod=$(git -C $tree ls-files -m | grep ".*\.[ch]" | grep -v $ignore)
  45 mod+=" $(git -C $tree ls-files --others --exclude-standard | grep '.*\.[ch]' | grep -v $ignore)"
  46 echo $mod
  47 if [ -z "$mod" ]; then
  48   echo "There doesn't seem to be any changes."
  49 else
  50   echo "Copying source to temp directory..."
  51   for file in $mod; do
  52     echo "$tree/$file --> ${tmp1}/$file"
  53     cp $tree/$file ${tmp1}/
  54   done
  55   git -C $tree reset --hard
  56   git -C $tree clean -fd
  57   for file in $mod; do
  58     if [ -f $tree/$file ]; then
  59       echo "$tree/$file --> ${tmp2}/$file"
  60       cp $tree/$file ${tmp2}/
  61     fi
  62   done
  63   echo "Running style checks..."
  64   for file in ${tmp1}/*; do
  65     echo "$checkpatch $file > $file _cp"
  66     $checkpatch $file > "$file"_cp 2> /dev/null
  67   done
  68   for file in ${tmp2}/*; do
  69     echo "$checkpatch $file > $file _cp"
  70     $checkpatch $file > "$file"_cp 2> /dev/null
  71   done
  72   echo "Done."
  73   for file in ${tmp1}/*_cp; do
  74     if [ -a ${tmp2}/$(basename $file) ]; then
  75       result=$(diff $file ${tmp2}/$(basename $file) | awk '/< ERROR|< WARNING/,/^< $|^< #|^<[^ ]/ { print $0; ++n }; END { exit n }')
  76     else
  77       result=$(cat $file | awk '/ERROR|WARNING/,/^$/ { print $0; ++n }; END { exit n }')
  78     fi
  79     ni="$?"
  80     if [ "$ni" -ne "0" ]; then
  81       echo "Report for $(basename $file _cp) | $ni issues" 1>&2
  82       echo "===============================================" 1>&2
  83       echo "$result" 1>&2
  84       if echo $result | grep -q "ERROR"; then
  85         stat=2
  86       elif [ "$stat" -eq "0" ]; then
  87         stat=1
  88       fi
  89     fi
  90   done
  91 fi
  92
  93 # restore working tree
  94 if [ $dirty -eq 1 ]; then
  95   git -C $tree read-tree $WORKTREE;
  96   git -C $tree checkout-index -af;
  97   git -C $tree read-tree $INDEX;
  98   if [ -n "$td" ]; then
  99     rm $td
 100   fi
 101   git -C $tree config --unset gc.auto;
 102 fi
 103
 104 # remove temp directories
 105 rm -rf ${tmp1} ${tmp2}
 106
 107 exit $stat