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-rw-r--r--Documentation/git-format-patch.txt15
-rw-r--r--builtin/log.c24
-rw-r--r--commit.h5
-rw-r--r--log-tree.c2
-rw-r--r--pretty.c38
-rw-r--r--revision.h1
-rwxr-xr-xt/t4014-format-patch.sh43
7 files changed, 128 insertions, 0 deletions
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 3911877..e394276 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -187,6 +187,21 @@ will want to ensure that threading is disabled for `git send-email`.
The negated form `--no-cc` discards all `Cc:` headers added so
far (from config or command line).
+--from::
+--from=<ident>::
+ Use `ident` in the `From:` header of each commit email. If the
+ author ident of the commit is not textually identical to the
+ provided `ident`, place a `From:` header in the body of the
+ message with the original author. If no `ident` is given, use
+ the committer ident.
++
+Note that this option is only useful if you are actually sending the
+emails and want to identify yourself as the sender, but retain the
+original author (and `git am` will correctly pick up the in-body
+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`.
+
--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 e3222ed..2625f98 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1112,6 +1112,21 @@ static int cc_callback(const struct option *opt, const char *arg, int unset)
return 0;
}
+static int from_callback(const struct option *opt, const char *arg, int unset)
+{
+ char **from = opt->value;
+
+ free(*from);
+
+ if (unset)
+ *from = NULL;
+ else if (arg)
+ *from = xstrdup(arg);
+ else
+ *from = xstrdup(git_committer_info(IDENT_NO_DATE));
+ return 0;
+}
+
int cmd_format_patch(int argc, const char **argv, const char *prefix)
{
struct commit *commit;
@@ -1134,6 +1149,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
int quiet = 0;
int reroll_count = -1;
char *branch_name = NULL;
+ char *from = NULL;
const struct option builtin_format_patch_options[] = {
{ OPTION_CALLBACK, 'n', "numbered", &numbered, NULL,
N_("use [PATCH n/m] even with a single patch"),
@@ -1177,6 +1193,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
0, to_callback },
{ OPTION_CALLBACK, 0, "cc", NULL, N_("email"), N_("add Cc: header"),
0, cc_callback },
+ { OPTION_CALLBACK, 0, "from", &from, N_("ident"),
+ N_("set From address to <ident> (or committer ident if absent)"),
+ PARSE_OPT_OPTARG, from_callback },
OPT_STRING(0, "in-reply-to", &in_reply_to, N_("message-id"),
N_("make first mail a reply to <message-id>")),
{ OPTION_CALLBACK, 0, "attach", &rev, N_("boundary"),
@@ -1264,6 +1283,11 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
rev.extra_headers = strbuf_detach(&buf, NULL);
+ if (from) {
+ if (split_ident_line(&rev.from_ident, from, strlen(from)))
+ die(_("invalid ident line: %s"), from);
+ }
+
if (start_number < 0)
start_number = 1;
diff --git a/commit.h b/commit.h
index 011ddb1..c56bc3a 100644
--- a/commit.h
+++ b/commit.h
@@ -6,6 +6,7 @@
#include "strbuf.h"
#include "decorate.h"
#include "gpg-interface.h"
+#include "string-list.h"
struct commit_list {
struct commit *item;
@@ -95,11 +96,15 @@ struct pretty_print_context {
const char *output_encoding;
struct string_list *mailmap;
int color;
+ struct ident_split *from_ident;
/*
* Fields below here are manipulated internally by pp_* functions and
* should not be counted on by callers.
*/
+
+ /* Manipulated by the pp_* functions internally. */
+ struct string_list in_body_headers;
};
struct userformat_want {
diff --git a/log-tree.c b/log-tree.c
index 2eb69bc..67da27f 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -617,6 +617,8 @@ void show_log(struct rev_info *opt)
ctx.fmt = opt->commit_format;
ctx.mailmap = opt->mailmap;
ctx.color = opt->diffopt.use_color;
+ if (opt->from_ident.mail_begin && opt->from_ident.name_begin)
+ ctx.from_ident = &opt->from_ident;
pretty_print_commit(&ctx, commit, &msgbuf);
if (opt->add_signoff)
diff --git a/pretty.c b/pretty.c
index 68cd7a0..74563c9 100644
--- a/pretty.c
+++ b/pretty.c
@@ -432,6 +432,23 @@ void pp_user_info(struct pretty_print_context *pp,
map_user(pp->mailmap, &mailbuf, &maillen, &namebuf, &namelen);
if (pp->fmt == CMIT_FMT_EMAIL) {
+ if (pp->from_ident) {
+ struct strbuf buf = STRBUF_INIT;
+
+ strbuf_addstr(&buf, "From: ");
+ strbuf_add(&buf, namebuf, namelen);
+ strbuf_addstr(&buf, " <");
+ strbuf_add(&buf, mailbuf, maillen);
+ strbuf_addstr(&buf, ">\n");
+ string_list_append(&pp->in_body_headers,
+ strbuf_detach(&buf, NULL));
+
+ mailbuf = pp->from_ident->mail_begin;
+ maillen = pp->from_ident->mail_end - mailbuf;
+ namebuf = pp->from_ident->name_begin;
+ namelen = pp->from_ident->name_end - namebuf;
+ }
+
strbuf_addstr(sb, "From: ");
if (needs_rfc2047_encoding(namebuf, namelen, RFC2047_ADDRESS)) {
add_rfc2047(sb, namebuf, namelen,
@@ -1602,6 +1619,16 @@ void pp_title_line(struct pretty_print_context *pp,
}
strbuf_addch(sb, '\n');
+ if (need_8bit_cte == 0) {
+ int i;
+ for (i = 0; i < pp->in_body_headers.nr; i++) {
+ if (has_non_ascii(pp->in_body_headers.items[i].string)) {
+ need_8bit_cte = 1;
+ break;
+ }
+ }
+ }
+
if (need_8bit_cte > 0) {
const char *header_fmt =
"MIME-Version: 1.0\n"
@@ -1615,6 +1642,17 @@ void pp_title_line(struct pretty_print_context *pp,
if (pp->fmt == CMIT_FMT_EMAIL) {
strbuf_addch(sb, '\n');
}
+
+ if (pp->in_body_headers.nr) {
+ int i;
+ for (i = 0; i < pp->in_body_headers.nr; i++) {
+ strbuf_addstr(sb, pp->in_body_headers.items[i].string);
+ free(pp->in_body_headers.items[i].string);
+ }
+ string_list_clear(&pp->in_body_headers, 0);
+ strbuf_addch(sb, '\n');
+ }
+
strbuf_release(&title);
}
diff --git a/revision.h b/revision.h
index 92d6614..95859ba 100644
--- a/revision.h
+++ b/revision.h
@@ -144,6 +144,7 @@ struct rev_info {
int numbered_files;
int reroll_count;
char *message_id;
+ struct ident_split from_ident;
struct string_list *ref_message_ids;
int add_signoff;
const char *extra_headers;
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 58d4180..668933b 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -972,6 +972,49 @@ test_expect_success 'empty subject prefix does not have extra space' '
test_cmp expect actual
'
+test_expect_success '--from=ident notices bogus ident' '
+ test_must_fail git format-patch -1 --stdout --from=foo >patch
+'
+
+test_expect_success '--from=ident replaces author' '
+ git format-patch -1 --stdout --from="Me <me@example.com>" >patch &&
+ cat >expect <<-\EOF &&
+ From: Me <me@example.com>
+
+ From: A U Thor <author@example.com>
+
+ EOF
+ sed -ne "/^From:/p; /^$/p; /^---$/q" <patch >patch.head &&
+ test_cmp expect patch.head
+'
+
+test_expect_success '--from uses committer ident' '
+ git format-patch -1 --stdout --from >patch &&
+ cat >expect <<-\EOF &&
+ From: C O Mitter <committer@example.com>
+
+ From: A U Thor <author@example.com>
+
+ EOF
+ sed -ne "/^From:/p; /^$/p; /^---$/q" <patch >patch.head &&
+ test_cmp expect patch.head
+'
+
+test_expect_success 'in-body headers trigger content encoding' '
+ GIT_AUTHOR_NAME="éxötìc" test_commit exotic &&
+ test_when_finished "git reset --hard HEAD^" &&
+ git format-patch -1 --stdout --from >patch &&
+ cat >expect <<-\EOF &&
+ From: C O Mitter <committer@example.com>
+ Content-Type: text/plain; charset=UTF-8
+
+ From: éxötìc <author@example.com>
+
+ EOF
+ sed -ne "/^From:/p; /^$/p; /^Content-Type/p; /^---$/q" <patch >patch.head &&
+ test_cmp expect patch.head
+'
+
append_signoff()
{
C=$(git commit-tree HEAD^^{tree} -p HEAD) &&