range-diff --dual-color: skip white-space warnings

When displaying a diff of diffs, it is possible that there is an outer
`+` before a context line. That happens when the context changed between
old and new commit. When that context line starts with a tab (after the
space that marks it as context line), our diff machinery spits out a
white-space error (space before tab), but in this case, that is
incorrect.

Rather than adding a specific whitespace flag that specifically ignores
the first space in the output (and might miss other problems with the
white-space warnings), let's just skip handling white-space errors in
dual color mode to begin with.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2018-08-13 04:33:24 -07:00 committed by Junio C Hamano
parent 31cf61a080
commit 0b91faa010

1
diff.c
View File

@ -1299,6 +1299,7 @@ static void emit_diff_symbol_from_struct(struct diff_options *o,
set = diff_get_color_opt(o, DIFF_FRAGINFO);
else if (c != '+')
set = diff_get_color_opt(o, DIFF_CONTEXT);
flags &= ~DIFF_SYMBOL_CONTENT_WS_MASK;
}
emit_line_ws_markup(o, set, reset, line, len, set_sign, '+',
flags & DIFF_SYMBOL_CONTENT_WS_MASK,