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send-email: restore --in-reply-to superseding behavior 

git send-email --in-reply-to= fails to override In-Reply-To email headers,
if they're present in the output of format-patch, even when explicitly
told to do so by the option --no-thread, which breaks the contract of the
command line switch option, per its man page.

"
   --in-reply-to=<identifier>
       Make the first mail (or all the mails with --no-thread) appear as
       a reply to the given Message-Id, which avoids breaking threads to
       provide a new patch series.
"

This patch fixes the aformentioned issue, by bringing --in-reply-to's old
overriding behavior back.

The test was donated by Carlo Marcelo Arenas Belón.

Signed-off-by: Rafael Aquini <aquini@redhat.com>
Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Rafael Aquini 2020-06-29 10:11:04 -04:00 committed by Junio C Hamano
parent af6b65d45e
commit f9f60d7066
2 changed files with 19 additions and 3 deletions
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8
git-send-email.perl
View File

@ -1699,10 +1699,14 @@ sub process_file {
$xfer_encoding = $1 if not defined $xfer_encoding;
}
elsif (/^In-Reply-To: (.*)/i) {
$in_reply_to = $1;
if (!$initial_in_reply_to || $thread) {
$in_reply_to = $1;
}
}
elsif (/^References: (.*)/i) {
$references = $1;
if (!$initial_in_reply_to || $thread) {
$references = $1;
}
}
elsif (!/^Date:\s/i && /^[-A-Za-z]+:\s+\S/) {
push @xh, $_;

14
t/t9001-send-email.sh
View File

@ -42,7 +42,8 @@ clean_fake_sendmail () {
}
test_expect_success $PREREQ 'Extract patches' '
patches=$(git format-patch -s --cc="One <one@example.com>" --cc=two@example.com -n HEAD^1)
patches=$(git format-patch -s --cc="One <one@example.com>" --cc=two@example.com -n HEAD^1) &&
threaded_patches=$(git format-patch -o threaded -s --in-reply-to="format" HEAD^1)
'
# Test no confirm early to ensure remaining tests will not hang
@ -1219,6 +1220,17 @@ test_expect_success $PREREQ 'threading but no chain-reply-to' '
grep "In-Reply-To: " stdout
'
test_expect_success $PREREQ 'override in-reply-to if no threading' '
git send-email \
--dry-run \
--from="Example <nobody@example.com>" \
--to=nobody@example.com \
--no-thread \
--in-reply-to="override" \
$threaded_patches >stdout &&
grep "In-Reply-To: <override>" stdout
'
test_expect_success $PREREQ 'sendemail.to works' '
git config --replace-all sendemail.to "Somebody <somebody@ex.com>" &&
git send-email \