Re: [PATCH] emacs: Invoke gpg with --batch and --no-tty

2019-02-10 Thread David Bremner
Daniel Kahn Gillmor  writes:

> When invoking gpg as a backgrounded tool, it's important to let gpg
> know that it is backgrounded, to avoid spurious prompts or other
> breakage.

pushed to release and master.

d
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Re: [PATCH] emacs: Invoke gpg with --batch and --no-tty

2019-02-09 Thread Daniel Kahn Gillmor
On Sat 2019-02-09 17:12:52 -0400, David Bremner wrote:
> 1) I only skimmed the debian bug, but I hard the impression Werner said
> that --batch implied --no-tty?

from gpg(1):

  --no-tty
  Make  sure that the TTY (terminal) is never used for any output.
  This option is needed in  some  cases  because  GnuPG  sometimes
  prints warnings to the TTY even if --batch is used.

So i think that --batch does not imply --no-tty.

Why GnuPG might insist on causing an error if it has no tty in those
cases, i can't really justify, but there it is.

> 2) How urgent is this? It will probably be at more than month before the
> next notmuch release, due to some sphinx issues that need some
> attention. Should we do a 0.28.2 point release ? I'd say basically if
> you think it's worth patching for debian we should do the point release
> for everyone.

This is one part of a two-part bug, both of which i bear some
responsibility for.  The other part is the aforementioned
https://bugs.debian.org/913614, the fix for which is already in both
testing and stretch-proposed-updates.  Luckily, if *either* GnuPG or
notmuch-emacs is fixed, the problem goes away.  But both fixes are in
principle the right thing to do, so please queue this for the notmuch
mainline at least.

i don't think there's any urgency here from a debian perspective, since
we're unlikely to get anything fixed before the next point release
anyway, and the other leg of the bug is already solved in the next point
release.

If there are other cleanups you're thinking about trying to get into
debian stretch's next point release, by all means fold this one in,
though.

Other operating systems or vendors might want to include this patch if
they're running some version of GnuPG that makes the same mistakes as
https://bugs.debian.org/913614, however.

 --dkg


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Re: [PATCH] emacs: Invoke gpg with --batch and --no-tty

2019-02-09 Thread David Bremner
Daniel Kahn Gillmor  writes:

> When invoking gpg as a backgrounded tool, it's important to let gpg
> know that it is backgrounded, to avoid spurious prompts or other
> breakage.
>
> In particular, https://bugs.debian.org/913614 was a regression in
> GnuPG which causes problems when importing keys without a terminal,
> but gpg expects one.
>
> Ensuring that notmuch-emacs always invokes gpg as a background process
> should avoid some of these unnecessary failure.
>

1) I only skimmed the debian bug, but I hard the impression Werner said
that --batch implied --no-tty?

2) How urgent is this? It will probably be at more than month before the
next notmuch release, due to some sphinx issues that need some
attention. Should we do a 0.28.2 point release ? I'd say basically if
you think it's worth patching for debian we should do the point release
for everyone.

d
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[PATCH] emacs: Invoke gpg with --batch and --no-tty

2019-02-09 Thread Daniel Kahn Gillmor
When invoking gpg as a backgrounded tool, it's important to let gpg
know that it is backgrounded, to avoid spurious prompts or other
breakage.

In particular, https://bugs.debian.org/913614 was a regression in
GnuPG which causes problems when importing keys without a terminal,
but gpg expects one.

Ensuring that notmuch-emacs always invokes gpg as a background process
should avoid some of these unnecessary failure.

Thanks to Justus Winter for finding this problem.

Signed-off-by: Daniel Kahn Gillmor 
---
 emacs/notmuch-crypto.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/emacs/notmuch-crypto.el b/emacs/notmuch-crypto.el
index fc2b5301..353f721e 100644
--- a/emacs/notmuch-crypto.el
+++ b/emacs/notmuch-crypto.el
@@ -142,7 +142,7 @@ mode."
 (with-selected-window window
   (with-current-buffer buffer
(goto-char (point-max))
-   (call-process epg-gpg-program nil t t "--list-keys" fingerprint))
+   (call-process epg-gpg-program nil t t "--batch" "--no-tty" 
"--list-keys" fingerprint))
   (recenter -1
 
 (defun notmuch-crypto-sigstatus-error-callback (button)
@@ -153,9 +153,9 @@ mode."
 (with-selected-window window
   (with-current-buffer buffer
(goto-char (point-max))
-   (call-process epg-gpg-program nil t t "--recv-keys" keyid)
+   (call-process epg-gpg-program nil t t "--batch" "--no-tty" 
"--recv-keys" keyid)
(insert "\n")
-   (call-process epg-gpg-program nil t t "--list-keys" keyid))
+   (call-process epg-gpg-program nil t t "--batch" "--no-tty" 
"--list-keys" keyid))
   (recenter -1))
 (notmuch-show-refresh-view)))
 
-- 
2.20.1

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