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-rw-r--r--Documentation/git-format-patch.txt3
-rw-r--r--builtin/log.c9
-rw-r--r--log-tree.c15
3 files changed, 22 insertions, 5 deletions
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 9b2e172159..aba4c5febe 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -241,7 +241,8 @@ feeding the result to `git send-email`.
--range-diff=<previous>::
As a reviewer aid, insert a range-diff (see linkgit:git-range-diff[1])
- into the cover letter showing the differences between the previous
+ into the cover letter, or as commentary of the lone patch of a
+ 1-patch series, showing the differences between the previous
version of the patch series and the series currently being formatted.
`previous` can be a single revision naming the tip of the previous
series if it shares a common base with the series being formatted (for
diff --git a/builtin/log.c b/builtin/log.c
index 05965a57ca..f69b67b9ce 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1576,7 +1576,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
N_("show changes against <rev> in cover letter or single patch"),
parse_opt_object_name),
OPT_STRING(0, "range-diff", &rdiff_prev, N_("refspec"),
- N_("show changes against <refspec> in cover letter")),
+ N_("show changes against <refspec> in cover letter or single patch")),
OPT_INTEGER(0, "creation-factor", &creation_factor,
N_("percentage by which creation is weighted")),
OPT_END()
@@ -1817,8 +1817,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
die(_("--creation-factor requires --range-diff"));
if (rdiff_prev) {
- if (!cover_letter)
- die(_("--range-diff requires --cover-letter"));
+ if (!cover_letter && total != 1)
+ die(_("--range-diff requires --cover-letter or single patch"));
infer_range_diff_ranges(&rdiff1, &rdiff2, rdiff_prev,
origin, list[0]);
@@ -1867,8 +1867,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
print_signature(rev.diffopt.file);
total++;
start_number--;
- /* interdiff in cover-letter; omit from patches */
+ /* interdiff/range-diff in cover-letter; omit from patches */
rev.idiff_oid1 = NULL;
+ rev.rdiff1 = NULL;
}
rev.add_signoff = do_signoff;
diff --git a/log-tree.c b/log-tree.c
index e21c3d959f..cec983a461 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -16,6 +16,7 @@
#include "line-log.h"
#include "help.h"
#include "interdiff.h"
+#include "range-diff.h"
static struct decoration name_decoration = { "object names" };
static int decoration_loaded;
@@ -751,6 +752,20 @@ void show_log(struct rev_info *opt)
memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff));
}
+
+ if (cmit_fmt_is_mail(ctx.fmt) && opt->rdiff1) {
+ struct diff_queue_struct dq;
+
+ memcpy(&dq, &diff_queued_diff, sizeof(diff_queued_diff));
+ DIFF_QUEUE_CLEAR(&diff_queued_diff);
+
+ next_commentary_block(opt, NULL);
+ fprintf_ln(opt->diffopt.file, "%s", opt->rdiff_title);
+ show_range_diff(opt->rdiff1, opt->rdiff2,
+ opt->creation_factor, 1, &opt->diffopt);
+
+ memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff));
+ }
}
int log_tree_diff_flush(struct rev_info *opt)