[PATCH 0/2] send-email: add --header-cmd option

Hi,

This adds a new --header-cmd option to the send-email command, joining in the ranks of '--cc-cmd' and '--to-cmd'. The header-cmd script provided as argument should output 'header: value' lines, such as:

  X-Debbugs-Cc: someone@example.com
  AnotherHeader: somevalue
  [...]

This change was motivated by the use case of easing collaboration using Debbugs in GNU Guix [0].

[0]  https://issues.guix.gnu.org/58813

Thanks,

Maxim Cournoyer (2):
  send-email: extract execute_cmd from recipients_cmd
  send-email: add --header-cmd option

 Documentation/config/sendemail.txt |  1 +
 Documentation/git-send-email.txt   |  5 ++++
 git-send-email.perl                | 38 +++++++++++++++++++++++-------
 t/t9001-send-email.sh              | 21 +++++++++++++++--
 4 files changed, 54 insertions(+), 11 deletions(-)

base-commit: 7580f92ffa970b9484ac214f7b53cec5e26ca4bc