2 @unnumbered Implementation notes
6 @item @file{all} target is default
7 @item @file{stdout} is always captured, but no target is created if it
9 @item empty targets are considered always out of date
10 @item @file{.do}'s @file{$3} is relative path to the file in target directory
11 @item @file{.do} search goes up to @file{/} by default, but can be
12 limited with either @env{$REDO_TOP_DIR} environment variable, or by
13 having @file{.redo/top} file in it
14 @item target's completion messages are written after they finish
15 @item executable @file{.do} is run as is, non-executable is run with
17 @item tracing (@option{-x}) can be obviously done only for
18 non-executable @file{.do}
19 @item parallizable build is done only during @command{redo-ifchange} for
20 human convenience: you can globally enable @env{REDO_JOBS}, but
21 still do for example: @code{redo htmls infos index upload}