build/updatecw.sh

   1 #!/bin/bash
   2 # Adds Whamcloud copyright notices to files modified by Whamcloud.
   3 # Does not add copyright notices to files that are missing them
   4 #
   5 # Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
   6 # Copyright (c) 2012, Whamcloud, Inc.
   7 #
   8
   9 TMP=${TMP:-/tmp}
  10 TMPFILE=$(mktemp $TMP/updatecopy.XXXXXX)
  11 NOW=$(date +%Y)
  12 DIRS=${DIRS:-"build ldiskfs libcfs lnet lustre snmp lustre-iokit"}
  13
  14 ORACOPY1="Copyright.*Oracle.*"
  15 ORACOPY2="Use is subject to license terms."
  16 ADDCOPY=${ADDCOPY:-"Copyright.*Whamcloud, Inc."}
  17 AUTHOR=${AUTHOR:-".*@whamcloud.com"}
  18 START=${START:-"2010-06-01"}
  19 ECHOE=${ECHOE:-"echo -e"}
  20 [ "$($ECHOE foo)" = "-e foo" ] && ECHOE=echo
  21
  22 git ls-files $DIRS | grep -v ${0##*/} | while read FILE; do
  23         NEEDCOPY=false
  24         # Pick only files that have changed since START
  25         git log --follow --since=$START --author=$AUTHOR --pretty=format:%ci \
  26                 $FILE | cut -d- -f1 > $TMPFILE
  27
  28         # Skip files not modified by $AUTHOR
  29         [ -s "$TMPFILE" ] || continue
  30
  31         OLDCOPY="$(egrep "$ORACOPY1|$ORACOPY2|$ADDCOPY" $FILE|tail -n1|tr / .)"
  32         if [ -z "$OLDCOPY" ]; then
  33                 case $FILE in
  34                         *.[ch]) echo "$FILE: ** NO COPYRIGHT **" && continue ;;
  35                         *) continue ;;
  36                 esac
  37         elif [ -z "$(echo "$OLDCOPY" | grep "$ADDCOPY")" ]; then
  38                 NEEDCOPY=true
  39         else
  40                 # Skip files that already have a copyright for this year
  41                 echo "$OLDCOPY" | grep -q "$NOW" && continue
  42         fi
  43
  44         # Get commit dates
  45         NEWYEAR=$(head -1 $TMPFILE)
  46         OLDYEAR=$(tail -1 $TMPFILE)
  47
  48         [ $NEWYEAR == $OLDYEAR ] && YEAR="$NEWYEAR" || YEAR="$OLDYEAR, $NEWYEAR"
  49         COMMENT=$(echo "$OLDCOPY" | sed -e "s/^\( *[^A-Z]*\) [A-Z].*/\1/")
  50         NEWCOPY=$(sed -e "s/^/$COMMENT /" -e "s/\.\*/ (c) $YEAR, /" <<<$ADDCOPY)
  51
  52         # If copyright is unchanged (excluding whitespace), we're done
  53         [ "$OLDCOPY" == "$NEWCOPY" ] && continue
  54
  55         [ ! -w $FILE ] && echo "Unable to write to $FILE" && exit 1
  56
  57         echo "$FILE: Copyright $YEAR"
  58         if $NEEDCOPY; then
  59                 # Add a new copyright line after the existing copyright.
  60                 # Using a temporary file is ugly, but I couldn't get
  61                 # newlines into the substitution pattern for some reason,
  62                 # and this is not a performance-critical process.
  63                 $ECHOE "${COMMENT}\n${NEWCOPY}" > $TMPFILE
  64                 sed -e "/$OLDCOPY/r $TMPFILE" $FILE > $FILE.tmp
  65         else
  66                 # Replace the old copyright line with a new copyright
  67                 sed -e "s#.*$ADDCOPY#$NEWCOPY#" $FILE > $FILE.tmp
  68         fi
  69         [ -s $FILE.tmp ] && cp $FILE.tmp $FILE
  70         rm $FILE.tmp
  71 done
  72 rm $TMPFILE