#!/bin/sh

REPOS="$1"
TXN="$2"

SVNLOOK=/usr/bin/svnlook

svn_cat() {
    $SVNLOOK cat "$REPOS" -t "$TXN" $1
}

all_changed_files=`$SVNLOOK changed "$REPOS" -t "$TXN" | \
                    grep "^[AU]" | \
                    sed 's/^....//'`

# notice that breaking all_changed_files into several lines by replacing spaces
# with new lines only works as long as we don't have any files with spaces in
# them -- which is the case for now, but if it ever changes we'd probably need
# to use a shell array for all_changed_files or just rerun svnlook here again
changed_sources=`echo $all_changed_files | \
                    sed 's/ /\n/g' | \
                    egrep "\.(cpp|h|py)$" | \
                    egrep -v "src/(tiff|regex|jpeg|stc/scintilla)"`

rc=0

set -e

for f in $changed_sources; do
     if  svn_cat $f | fgrep -q '	'; then
         echo "Please remove TABs from $f before committing." >&2
         rc=1
     fi
done

for f in $all_changed_files; do
    if ! svn_cat $f | iconv -f utf8 -t WCHAR_T > /dev/null; then
        echo "File $f doesn't use UTF-8, please convert it before committing." >&2
        rc=1
    fi
done

exit $rc