portable_nosvn_grep.sh

function sgrep {
    ARGS_WITH_OPTS=2
    FILE_LIST_NO_BINARIES="-Il"
    DEFAULT_OPTS_WITH_FIND="-hn"
    DEFAULT_OPTS_WITHOUT_FIND="-rn"

    SKIP_DIRS_RAW='svn'
    SKIP_EXTS_RAW='pyc pyo so o a tgz'
    SKIP_FILES_RAW='tags'

    SKIP_DIRS="`echo $SKIP_DIRS_RAW | sed -e 's_\(\w*\)_.*/\.\1_g' | sed -e 's_ _\\\|_g'`"
    SKIP_EXTS="`echo $SKIP_EXTS_RAW | sed -e 's_\(\w*\)_.*\.\1_g' | sed -e 's_ _\\\|_g'`"
    SKIP_FILES="`echo $SKIP_FILES_RAW | sed -e 's_\(\w*\)_.*/\1_g' | sed -e 's_ _\\\|_g'`"

    which grin &> /dev/null
    HAVE_GRIN=`test $? == 0 && echo true || echo false`
    grep --exclude-dir=x x /dev/null &> /dev/null
    HAVE_EXCLUDE_DIRS=`test $? == 1 && echo true || echo false`

    if $HAVE_GRIN; then
        grin $*
    elif $HAVE_EXCLUDE_DIRS; then
        grep --exclude="$SKIP_FILES_RAW" --exclude-dir=."$SKIP_DIRS_RAW" $DEFAULT_OPTS_WITHOUT_FIND -r  $* .
    else
        if [[ $# -le $ARGS_WITH_OPTS ]]; then
            searchterm=$*
            opts=$DEFAULT_OPTS_WITH_FIND
        else
            opts=shift
            searchterm=$*
        fi

        find .  \
            -regex "$SKIP_DIRS" -prune , \
            -not -regex "$SKIP_EXTS" \
            -not -regex "$SKIP_FILES" \
            -type f -print0 \
            | xargs -0 grep $FILE_LIST_NO_BINARIES "$searchterm" \
            | while read f; do echo "$f:"; grep --color=always $opts "$searchterm" "$f"; done
    fi
}