@leroysheep / BookAlchemy / commits / 2011bb4f34

diff: drop line_prefix_length field

The diff_options structure holds a line_prefix string and an associated length. But the length is always just the strlen() of the NUL-terminated string. Let's simplify the code by just storing the string pointer and assuming it is NUL-terminated when we use it. This will cause us to compute the string length in a few extra spots, but I don't think any of these are particularly hot code paths. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Oct 3, 2024 at 17:06 UTC 2011bb4f34d773a7de2d64769ca9f508feba8089
3 files changed +2 -8
diff.c
-1
index a83409944b..f725d217de 100644 --- a/diff.c +++ b/diff.c @@ -5395,7 +5395,6 @@ static int diff_opt_line_prefix(const struct option *opt, BUG_ON_OPT_NEG(unset); options->line_prefix = optarg; - options->line_prefix_length = strlen(options->line_prefix); graph_setup_line_prefix(options); return 0; }
diff.h
-1
index 9901c8ca8c..f816d3b12b 100644 --- a/diff.h +++ b/diff.h @@ -274,7 +274,6 @@ struct diff_options { const char *single_follow; const char *a_prefix, *b_prefix; const char *line_prefix; - size_t line_prefix_length; /** * collection of boolean options that affects the operation, but some do
graph.c
+2 -6
index 1ca34770ee..34b18a80d4 100644 --- a/graph.c +++ b/graph.c @@ -74,10 +74,7 @@ static void graph_show_line_prefix(const struct diff_options *diffopt) if (!diffopt || !diffopt->line_prefix) return; - fwrite(diffopt->line_prefix, - sizeof(char), - diffopt->line_prefix_length, - diffopt->file); + fputs(diffopt->line_prefix, diffopt->file); } static const char **column_colors; @@ -321,8 +318,7 @@ static struct strbuf *diff_output_prefix_callback(struct diff_options *opt, void strbuf_reset(&msgbuf); if (opt->line_prefix) - strbuf_add(&msgbuf, opt->line_prefix, - opt->line_prefix_length); + strbuf_addstr(&msgbuf, opt->line_prefix); if (graph) graph_padding_line(graph, &msgbuf); return &msgbuf;