Drop the --legacy flag: set_local_db and toggle_index now run
unconditionally instead of only when -l was passed, since that was the
flag's only effect.
Fix set_dot_env writing the connection/RCC_CONNECTION line twice with
opposing polarity (once from the #docker pass, once from the #cidb
pass), which flipped it to the wrong value. Collapsed the three
separate open/read/write passes into one, toggling both sections and
the connection line in a single scan so the connection line is only
ever touched once.
set_local_db, toggle_after_line and set_dot_env now return a
FileChange (path + before/after line pairs) instead of (), and main
prints it after each toggle so 'up'/'down' shows exactly what the
program rewrote in each env file.
mathias
Mathias Rothenhaeusler