#!/bin/sh

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

SVNLOOK=/usr/bin/svnlook

svnl() {
    cmd=$1
    shift
    $SVNLOOK $cmd "$REPOS" -t "$TXN" $*
}

rc=0

# exclude all third-party files from consideration, we don't want to do any
# checks for them
all_changed_files=`svnl changed | \
                    grep "^[AU]" | \
                    sed 's/^....//' | \
                    egrep -v "src/(tiff|regex|jpeg|stc/scintilla)"`

# analyze the changed files to find all non-binary and all source files
for f in $all_changed_files; do
    mimetype=`svnl proplist -v $f |
                fgrep "svn:mime-type" |
                sed 's/^ svn:mime-type : //'`
    case $mimetype in
        ''|text/*)
            ;;

        *)
            continue
            ;;
    esac

    changed_text_files="$changed_text_files $f"

    case $f in
        *.cpp|*.h|*.py)
            changed_sources="$changed_sources $f"
            ;;
    esac
done

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

for f in $changed_text_files; do
    if ! svnl 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
        echo "(or set svn:mime-type property correctly if the file is binary)." >&2
        rc=1
    fi
done

exit $rc