Check a file out of RCS, edit it, check it back in.

rcsedit.sh

#!/bin/bash


if [ "$1" == "-h" -o "$1" == "--help" ]; then
    echo "Usage: rcsedit (filename|-h|--help)"
    echo
    echo "Checks a file out of RCS, opens it in your \$EDITOR, and checks it back in if the editor exits successfully." | fmt -$COLUMNS
    exit 0
fi

if [ $# -ne 1 ]; then
    echo "$0: You must supply exactly one filename (got $#)." >&2
    exit 1
fi

if [ ! -e "$EDITOR" ]; then
    echo "$0: Couldn't find your \$EDITOR ($EDITOR)." >&2
    exit 2
fi

if [ ! -x "$EDITOR" ]; then
    echo="$0: Your \$EDITOR ($EDITOR) isn't executable to you." >&2
    exit 3
fi

if [ ! -e "$1" ]; then
    echo "$0: Couldn't find target file ($1)." >&2
    exit 4
fi

if ! rlog "$1" >/dev/null; then
    echo "$0: Target file ($1) doesn't appear to be in RCS." >&2
    exit 5
fi

if ! co -l "$1"; then
    echo "$0: Couldn't check out $1 from RCS." >&2
    exit 6
fi

if ! "$EDITOR" "$1"; then
    echo "$0: $EDITOR returned non-zero. $1 has not been checked back in yet." >&2
    exit 7
fi

if ! ci -u "$1"; then
    echo "$0: Couldn't check $1 into RCS." >&2
    exit 8
fi