Users may be authoring and committing their commits under the same
e-mail address they use to send their patches from, in which case
they shouldn't need to use the in-body From: line in their outgoing
e-mails. At the receiving end, "git am" will use the address on the
"From:" header of the incoming e-mail and all should be well.
Some mailing lists, however, mangle the From: address from what the
original sender had; in such a situation, the user may want to add
the in-body "From:" header even for their own patches.
"git format-patch --[no-]force-in-body-from" was invented for such
users.
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
Documentation/git-format-patch.txt | 9 +++++++++
builtin/log.c | 5 +++++
pretty.c | 2 ++
revision.h | 1 +
t/t4014-format-patch.sh | 13 +++++++++++++
5 files changed, 30 insertions(+)
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index be797d7a28..7c7f244e57 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -275,6 +275,15 @@ header). Note also that `git send-email` already handles this
transformation for you, and this option should not be used if you are
feeding the result to `git send-email`.
+--[no-]force-in-body-from::
+ With the e-mail sender specified via the `--from` option, by
+ default, an in-body "From:" to identify the real author of
+ the commit is added at the top of the commit log message if
+ the sender is different from the author. With this option,
+ the in-body "From:" is added even when the sender and the
+ author have the same name and address, which may help if the
+ mailing list software mangles the sender's identity.
+
--add-header=<header>::
Add an arbitrary header to the email headers. This is in addition
to any configured headers, and may be used multiple times.
diff --git a/builtin/log.c b/builtin/log.c
index 9b937d59b8..78ccd37bd9 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -52,6 +52,7 @@ static int default_encode_email_headers = 1;
static int decoration_style;
static int decoration_given;
static int use_mailmap_config = 1;
+static unsigned int force_in_body_from;
static const char *fmt_patch_subject_prefix = "PATCH";
static int fmt_patch_name_max = FORMAT_PATCH_NAME_MAX_DEFAULT;
static const char *fmt_pretty;
@@ -1897,6 +1898,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
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_BOOL(0, "force-in-body-from", &force_in_body_from,
+ N_("show in-body From: even if identical to the e-mail header")),
OPT_END()
};
@@ -1940,6 +1943,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN |
PARSE_OPT_KEEP_DASHDASH);
+ rev.force_in_body_from = force_in_body_from;
+
/* Make sure "0000-$sub.patch" gives non-negative length for $sub */
if (fmt_patch_name_max <= strlen("0000-") + strlen(fmt_patch_suffix))
fmt_patch_name_max = strlen("0000-") + strlen(fmt_patch_suffix);
diff --git a/pretty.c b/pretty.c
index cf418a6b20..b7553e3fe0 100644
--- a/pretty.c
+++ b/pretty.c
@@ -480,6 +480,8 @@ static void append_line_with_color(struct strbuf *sb, struct grep_opt *opt,
static int use_in_body_from(const struct pretty_print_context *pp,
const struct ident_split *ident)
{
+ if (pp->rev && pp->rev->force_in_body_from)
+ return 1;
if (ident_cmp(pp->from_ident, ident))
return 1;
return 0;
diff --git a/revision.h b/revision.h
index bb91e7ed91..6e346a60ab 100644
--- a/revision.h
+++ b/revision.h
@@ -221,6 +221,7 @@ struct rev_info {
missing_newline:1,
date_mode_explicit:1,
preserve_subject:1,
+ force_in_body_from:1,
encode_email_headers:1,
include_header:1;
unsigned int disable_stdin:1;
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index fbec8ad2ef..347f7f7f35 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1400,6 +1400,19 @@ test_expect_success '--from omits redundant in-body header' '
test_cmp expect patch.head
'
+test_expect_success 'with --force-in-body-from, redundant in-body from is kept' '
+ git format-patch --force-in-body-from \
+ -1 --stdout --from="A U Thor <author@xxxxxxxxxxx>" >patch &&
+ cat >expect <<-\EOF &&
+ From: A U Thor <author@xxxxxxxxxxx>
+
+ From: A U Thor <author@xxxxxxxxxxx>
+
+ EOF
+ sed -ne "/^From:/p; /^$/p; /^---$/q" patch >patch.head &&
+ test_cmp expect patch.head
+'
+
test_expect_success 'in-body headers trigger content encoding' '
test_env GIT_AUTHOR_NAME="éxötìc" test_commit exotic &&
test_when_finished "git reset --hard HEAD^" &&
--
2.37.2-621-gd3a800faf0
