From 5ac290f9c00edb8963585c322fae9fb06a98167d Mon Sep 17 00:00:00 2001 From: Eric Sunshine Date: Sun, 22 Jul 2018 05:57:06 -0400 Subject: format-patch: teach --interdiff to respect -v/--reroll-count The --interdiff option introduces the embedded interdiff generically as "Interdiff:", however, we can do better when --reroll-count is specified by emitting "Interdiff against v{n}:" instead. Signed-off-by: Eric Sunshine Signed-off-by: Junio C Hamano --- builtin/log.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'builtin') diff --git a/builtin/log.c b/builtin/log.c index 1020b78477..99ddfe8bb0 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1085,7 +1085,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, show_diffstat(rev, origin, head); if (rev->idiff_oid1) { - fprintf_ln(rev->diffopt.file, "%s", _("Interdiff:")); + fprintf_ln(rev->diffopt.file, "%s", rev->idiff_title); show_interdiff(rev); } } @@ -1427,6 +1427,16 @@ static void print_bases(struct base_tree_info *bases, FILE *file) oidclr(&bases->base_commit); } +static const char *diff_title(struct strbuf *sb, int reroll_count, + const char *generic, const char *rerolled) +{ + if (reroll_count <= 0) + strbuf_addstr(sb, generic); + else /* RFC may be v0, so allow -v1 to diff against v0 */ + strbuf_addf(sb, rerolled, reroll_count - 1); + return sb->buf; +} + int cmd_format_patch(int argc, const char **argv, const char *prefix) { struct commit *commit; @@ -1455,6 +1465,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) int show_progress = 0; struct progress *progress = NULL; struct oid_array idiff_prev = OID_ARRAY_INIT; + struct strbuf idiff_title = STRBUF_INIT; const struct option builtin_format_patch_options[] = { { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL, @@ -1758,6 +1769,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) die(_("--interdiff requires --cover-letter")); rev.idiff_oid1 = &idiff_prev.oid[idiff_prev.nr - 1]; rev.idiff_oid2 = get_commit_tree_oid(list[0]); + rev.idiff_title = diff_title(&idiff_title, reroll_count, + _("Interdiff:"), + _("Interdiff against v%d:")); } if (!signature) { @@ -1880,6 +1894,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) done: oid_array_clear(&idiff_prev); + strbuf_release(&idiff_title); return 0; } -- cgit v1.2.3