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#!/bin/bash
# Check a patch for style errors.
usage="./checkpatch.sh <patch> <tree>"
patch=$1
tree=$2
checkpatch="$tree/tools/checkpatch.pl --no-tree -f"
ignore="ldpd\|babeld"
cwd=${PWD##*/}
dirty=0
stat=0
tmp1=/tmp/f1-$$
tmp2=/tmp/f2-$$
if [[ -z "$1" || -z "$2" ]]; then
echo "$usage"
exit 0
fi
# remove temp directories
rm -rf ${tmp1} ${tmp2}
# save working tree
if git -C $tree status --porcelain | egrep --silent '^(\?\?|.[DM])'; then
echo "Detected dirty tree, caching state..."
dirty=1
git -C $tree config gc.auto 0;
td=$(git -C $tree status -z | grep -z "^[ARM]D" | cut -z -d' ' -f2- | tr '\0' '\n')
INDEX=$(git -C $tree write-tree)
git -C $tree add -f .
WORKTREE=$(git -C $tree write-tree)
echo "Saved index to $INDEX"
echo "Saved working tree to $WORKTREE"
fi
# double check
if git -C $tree status --porcelain | egrep --silent '^(\?\?|.[DM])'; then
echo "[!] git working directory must be clean."
exit 1
fi
git -C $tree reset --hard
git -C $tree apply < $patch
mkdir -p ${tmp1} ${tmp2}
mod=$(git -C $tree ls-files -m | grep ".*\.[ch]" | grep -v $ignore)
mod+=" $(git -C $tree ls-files --others --exclude-standard | grep '.*\.[ch]' | grep -v $ignore)"
echo $mod
if [ -z "$mod" ]; then
echo "There doesn't seem to be any changes."
else
echo "Copying source to temp directory..."
for file in $mod; do
echo "$tree/$file --> ${tmp1}/$file"
cp $tree/$file ${tmp1}/
done
git -C $tree reset --hard
git -C $tree clean -fd
for file in $mod; do
if [ -f $tree/$file ]; then
echo "$tree/$file --> ${tmp2}/$file"
cp $tree/$file ${tmp2}/
fi
done
echo "Running style checks..."
for file in ${tmp1}/*; do
echo "$checkpatch $file > $file _cp"
$checkpatch $file > "$file"_cp 2> /dev/null
done
for file in ${tmp2}/*; do
echo "$checkpatch $file > $file _cp"
$checkpatch $file > "$file"_cp 2> /dev/null
done
echo "Done."
for file in ${tmp1}/*_cp; do
if [ -a ${tmp2}/$(basename $file) ]; then
result=$(diff $file ${tmp2}/$(basename $file) | awk '/< ERROR|< WARNING/,/^< $|^< #|^<[^ ]/ { print $0; ++n }; END { exit n }')
else
result=$(cat $file | awk '/ERROR|WARNING/,/^$/ { print $0; ++n }; END { exit n }')
fi
ni="$?"
if [ "$ni" -ne "0" ]; then
echo "Report for $(basename $file _cp) | $ni issues" 1>&2
echo "===============================================" 1>&2
echo "$result" 1>&2
if echo $result | grep -q "ERROR"; then
stat=2
elif [ "$stat" -eq "0" ]; then
stat=1
fi
fi
done
fi
# restore working tree
if [ $dirty -eq 1 ]; then
git -C $tree read-tree $WORKTREE;
git -C $tree checkout-index -af;
git -C $tree read-tree $INDEX;
if [ -n "$td" ]; then
rm $td
fi
git -C $tree config --unset gc.auto;
fi
# remove temp directories
rm -rf ${tmp1} ${tmp2}
exit $stat
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