build-scripts/format-code

   1 #!/bin/sh
   2
   3 #
   4 # Reformat code, but do not touch if no changes.
   5 #
   6
   7 if [ "$0" != "./build-scripts/format-code" -a "$0" != "build-scripts/format-code" ]; then
   8     echo "Please run me from the root checkout dir"
   9     exit 1
  10 fi
  11
  12 if [ $# = 0 ]; then
  13     echo usage: $0 file...
  14     echo
  15     echo format C++ files, does not touch non-regular files
  16     exit 0
  17 fi
  18 if [ ! -e .clang-format ]; then
  19     echo "No .clang-format file found in .";
  20     exit 1
  21 fi
  22
  23 verbose=0
  24 if [ -t 1 ]; then
  25     verbose=1
  26 fi
  27 if [ x$CIRCLECI = xtrue ]; then
  28     verbose=0
  29 fi
  30
  31 FORMAT=clang-format-8
  32 if ! which $FORMAT 2> /dev/null; then
  33     FORMAT=clang-format
  34 fi
  35
  36 if [ $verbose = 1 ]; then
  37     echo Using executable $FORMAT
  38 fi
  39
  40 for file in "${@}"; do
  41     if [ -h "$file" -o ! -f "$file" ]; then
  42         if [ $verbose = 1 ]; then
  43             echo "$file: skipped, not a regular file or unreadable"
  44         fi
  45         continue
  46     fi
  47     tmp=$(mktemp "$file.XXXXXXXX")
  48     if ! $FORMAT -style=file "$file" > "$tmp"; then
  49         rm "$tmp"
  50     else
  51         if ! cmp -s "$file" "$tmp"; then
  52             echo "$file: reformatted"
  53             mv "$tmp" "$file"
  54         else
  55             if [ $verbose = 1 ]; then
  56                 echo "$file: already formatted to perfection"
  57             fi
  58             rm "$tmp"
  59         fi
  60     fi
  61 done
  62