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+ Wed, 27 Feb 2013 14:46:56 -0800 (PST)\r
+From: Jani Nikula <jani@nikula.org>\r
+To: Jameson Graef Rollins <jrollins@finestructure.net>,\r
+ David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH] cli: crypto: tell gmime to use gpg-agent\r
+In-Reply-To: <87ehg1pt2u.fsf@servo.finestructure.net>\r
+References: <1361950838-22919-1-git-send-email-jani@nikula.org>\r
+ <87hakxpwcu.fsf@servo.finestructure.net>\r
+ <87r4k1znor.fsf@maritornes.cs.unb.ca>\r
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+Date: Thu, 28 Feb 2013 00:46:57 +0200\r
+Message-ID: <87txoxwf1a.fsf@nikula.org>\r
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+\r
+On Wed, 27 Feb 2013, Jameson Graef Rollins <jrollins@finestructure.net> wrote:\r
+> On Wed, Feb 27 2013, David Bremner <david@tethera.net> wrote:\r
+>> But right now we force people to enable the agent globally via use-agent\r
+>> if they want to decrypt mail in notmuch-cli/emacs. The proposed change\r
+>> allows them to use the agent only for notmuch.\r
+>\r
+> Doesn't the proposed change actually *force* the user to use gpg-agent?\r
+> How can the user opt out?\r
+\r
+If the user wants to have decryption in notmuch, the user *must* use\r
+gpg-agent, regardless of this change or the "use-agent" configuration\r
+option. There is no opt out if one wants to have decryption in notmuch,\r
+regardless of this change.\r
+\r
+The proposed change gives the user the possibility to opt out of\r
+*globally* using gpg-agent for everything, and still have decryption in\r
+notmuch.\r
+\r
+The proposed change merely passes the --use-agent option to gpg. It does\r
+not *force* anything. It tells gpg to *try* to connect to the gpg-agent\r
+before it asks for a passphrase. (Except that notmuch will never ask for\r
+a passphrase. It will fail if it can't connect to the gpg-agent. Without\r
+--use-agent or "use-agent" option it will unconditionally fail.)\r
+\r
+When I use gpg on the command line, I want it to prompt for the\r
+passphrase on the command line instead of popping up a gpg-agent\r
+dialog. I don't think that is unreasonable. To achieve that I have\r
+disabled the "use-agent" configuration option. Without the proposed\r
+change, if I still wanted to have this *and* decryption in notmuch, I\r
+would have to pass --no-use-agent on the gpg command line. I think that\r
+*is* unreasonable.\r
+\r
+>> I don't think we should directly care about the presence of an X session\r
+>> or not; the agent protocol doesn't depend on how the agent was started\r
+>> afaik. \r
+>\r
+> Maybe, but I would like some example of what happens if you force usage\r
+> of an agent and the agent is not present or there is no X session.\r
+\r
+There is no force anything. It tries to connect to the agent, and if one\r
+is not present, decryption fails like it would have failed without this\r
+change.\r
+\r
+Finally, look up the references I provided. The whole function in gmime\r
+was provided *exactly* for situations like we have: the caller will fail\r
+without the agent, so have a tiny bit of sanity and see if it's there\r
+before failing.\r
+\r
+\r
+BR,\r
+Jani.\r
projects / notmuch-archives.git / commitdiff