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#!/bin/bash
sep='<nofileevercontainsthis>'
resep='@'
safe_types_regexp=('text' '(GIF|JPEG|PNG) image data')
safe_types_string=()
safe_files_regexp=('.*/\.git/.*')
safe_files_string=()
normalize_filename() {
local cwd="`pwd`"
readlink -m -- "$1"|sed "s|^$cwd/|./|"
}
matches_string() {
local needle=$1
shift
for straw in "$@"; do
if [[ "$needle" = "$straw" ]]; then
return 0
fi
done
return 1
}
matches_regexp() {
local needle=$1
shift
for straw in "$@"; do
if [[ "$needle" =~ $straw ]]; then
return 0
fi
done
return 1
}
main() {
# Parse arguments
for file in "$@"; do safe_files_string+=("$(normalize_filename "$file")"); done
# Init
unsafe_files="$(mktemp)"
# Heavy lifting
find . -type f -exec file -F"$sep" {} + | while read line; do
file="$(echo "$line"|sed "s${resep}${sep}.*${resep}${resep}")"
type="$(echo "$line"|sed "s${resep}.*${sep}\s*${resep}${resep}")"
file="$(normalize_filename "$file")"
if \
matches_string "$file" "${safe_files_string[@]}" || \
matches_string "$type" "${safe_types_string[@]}" || \
matches_regexp "$file" "${safe_files_regexp[@]}" || \
matches_regexp "$type" "${safe_types_regexp[@]}" ; then
: # do nothing
else
printf "%s\n" "$file"
fi
done > "$unsafe_files"
if [[ -n "$(cat "$unsafe_files")" ]]; then
echo "==> WARNING: The source directory `pwd` contains binary files:"
<"$unsafe_files" sort | sed 's/./ -> &/'
rm -f "$unsafe_files"
exit 1
else
rm -f "$unsafe_files"
fi
}
main "$@"
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