From 29228cbdc5f8a80b1f61c7cc209ba8e3714cc38e Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 12 Nov 2025 14:02:51 -0800 Subject: [PATCH] diff: refactor output of incomplete line Create a helper function that reacts to "\ No newline at the end of file" in preparation for unifying the incomplete line handling in the code path that handles xdiff output and the code path that bypasses xdiff and produces a complete-rewrite patch. Currently the output from the DIFF_SYMBOL_CONTEXT_INCOMPLETE case still (ab)uses the same code as what is used for context lines, but that would change in a later step where we introduce support to treat an incomplete line as a whitespace error. Signed-off-by: Junio C Hamano --- diff.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/diff.c b/diff.c index ff8fc91f88..7ee8620429 100644 --- a/diff.c +++ b/diff.c @@ -1379,6 +1379,10 @@ static void emit_diff_symbol_from_struct(struct diff_options *o, emit_line(o, "", "", line, len); break; case DIFF_SYMBOL_CONTEXT_INCOMPLETE: + set = diff_get_color_opt(o, DIFF_CONTEXT); + reset = diff_get_color_opt(o, DIFF_RESET); + emit_line(o, set, reset, line, len); + break; case DIFF_SYMBOL_CONTEXT_MARKER: context = diff_get_color_opt(o, DIFF_CONTEXT); reset = diff_get_color_opt(o, DIFF_RESET); @@ -1668,6 +1672,13 @@ static void emit_context_line(struct emit_callback *ecbdata, emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_CONTEXT, line, len, flags); } +static void emit_incomplete_line_marker(struct emit_callback *ecbdata, + const char *line, int len) +{ + emit_diff_symbol(ecbdata->opt, DIFF_SYMBOL_CONTEXT_INCOMPLETE, + line, len, 0); +} + static void emit_hunk_header(struct emit_callback *ecbdata, const char *line, int len) { @@ -2437,8 +2448,7 @@ static int fn_out_consume(void *priv, char *line, unsigned long len) ecbdata->last_line_kind); } ecbdata->lno_in_preimage++; - emit_diff_symbol(o, DIFF_SYMBOL_CONTEXT_INCOMPLETE, - line, len, 0); + emit_incomplete_line_marker(ecbdata, line, len); break; default: BUG("fn_out_consume: unknown line '%s'", line);