From 2e64f7ed64306fb0a57d509d9724a7a698f71138 Mon Sep 17 00:00:00 2001
From: Sorin Ionescu <sorin.ionescu@gmail.com>
Date: Tue, 30 Apr 2013 22:53:56 -0400
Subject: [PATCH] [Fix #419] Rewrite module gpg-agent; rename it to gpg

---
 modules/README.md           |  4 ++--
 modules/gpg-agent/README.md | 25 --------------------
 modules/gpg-agent/init.zsh  | 46 -------------------------------------
 modules/gpg/README.md       | 16 +++++++++++++
 modules/gpg/init.zsh        | 31 +++++++++++++++++++++++++
 runcoms/zpreztorc           |  7 ------
 6 files changed, 49 insertions(+), 80 deletions(-)
 delete mode 100644 modules/gpg-agent/README.md
 delete mode 100644 modules/gpg-agent/init.zsh
 create mode 100644 modules/gpg/README.md
 create mode 100644 modules/gpg/init.zsh

diff --git a/modules/README.md b/modules/README.md
index 79a4725..16754fc 100644
--- a/modules/README.md
+++ b/modules/README.md
@@ -46,10 +46,10 @@ GNU Utility
 
 Provides for the interactive use of GNU utilities on non-GNU systems.
 
-GPG-Agent
+GPG
 ---------
 
-Provides for an easier use of gpg-agent.
+Provides for an easier use of GPG by setting up gpg-agent.
 
 Haskell
 -------
diff --git a/modules/gpg-agent/README.md b/modules/gpg-agent/README.md
deleted file mode 100644
index 1b222d4..0000000
--- a/modules/gpg-agent/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-GPG-Agent
-=========
-
-Provides for an easier use of [gpg-agent][1].
-
-Settings
---------
-
-### SSH-Agent Protocol Emulation
-
-To enable SSH-Agent protocol emulation, add the following line to *zpreztorc*:
-
-    zstyle ':prezto:module:gpg-agent' ssh-support 'yes'
-
-Authors
--------
-
-*The authors of this module should be contacted via the [issue tracker][2].*
-
-  - [Florian Walch](https://github.com/fwalch)
-  - [Sorin Ionescu](https://github.com/sorin-ionescu)
-
-[1]: http://linux.die.net/man/1/gpg-agent
-[2]: https://github.com/sorin-ionescu/prezto/issues
-
diff --git a/modules/gpg-agent/init.zsh b/modules/gpg-agent/init.zsh
deleted file mode 100644
index 82bd9a2..0000000
--- a/modules/gpg-agent/init.zsh
+++ /dev/null
@@ -1,46 +0,0 @@
-#
-# Provides for an easier use of gpg-agent.
-#
-# Authors:
-#   Florian Walch <florian.walch@gmx.at>
-#   Sorin Ionescu <sorin.ionescu@gmail.com>
-#   neersighted <neersighted@myopera.com>
-#
-
-# Return if requirements are not found.
-if (( ! $+commands[gpg-agent] )); then
-  return 1
-fi
-
-# Make sure to use the $GNUPGHOME first.
-_gpg_env="${GNUPGHOME:-$HOME/.gnupg}/gpg-agent.env"
-
-function _gpg-agent-start {
-  local ssh_support
-
-  zstyle -b ':prezto:module:gpg-agent' ssh-support 'ssh_support' \
-    || ssh_support=''
-
-  gpg-agent \
-    --daemon \
-    ${ssh_support:+'--enable-ssh-support'} \
-    --write-env-file "${_gpg_env}" > /dev/null
-
-  chmod 600 "${_gpg_env}"
-  source "${_gpg_env}" > /dev/null
-}
-
-# Source GPG agent settings, if applicable.
-if [[ -s "${_gpg_env}" ]]; then
-  source "${_gpg_env}" > /dev/null
-  ps -ef | grep "${SSH_AGENT_PID}" | grep -q 'gpg-agent' || {
-    _gpg-agent-start
-  }
-else
-  _gpg-agent-start
-fi
-
-export GPG_AGENT_INFO
-export SSH_AUTH_SOCK
-export SSH_AGENT_PID
-export GPG_TTY="$(tty)"
diff --git a/modules/gpg/README.md b/modules/gpg/README.md
new file mode 100644
index 0000000..05db901
--- /dev/null
+++ b/modules/gpg/README.md
@@ -0,0 +1,16 @@
+GPG
+===
+
+Provides for an easier use of [GPG][1] by setting up [gpg-agent][2].
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][3].*
+
+  - [Sorin Ionescu](https://github.com/sorin-ionescu)
+
+[1]: http://www.gnupg.org
+[2]: http://linux.die.net/man/1/gpg-agent
+[3]: https://github.com/sorin-ionescu/prezto/issues
+
diff --git a/modules/gpg/init.zsh b/modules/gpg/init.zsh
new file mode 100644
index 0000000..f175942
--- /dev/null
+++ b/modules/gpg/init.zsh
@@ -0,0 +1,31 @@
+#
+# Provides for an easier use of GPG by setting up gpg-agent.
+#
+# Authors:
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Return if requirements are not found.
+if (( ! $+commands[gpg-agent] )); then
+  return 1
+fi
+
+# Set the default path to the gpg-agent-info file.
+_gpg_agent_info="$HOME/.gpg-agent-info"
+
+# Start gpg-agent if not started.
+ps -U "$USER" -o ucomm | grep -q gpg-agent \
+  || gpg-agent --daemon >! "$_gpg_agent_info"
+
+# Export environment variables.
+export GPG_TTY="$(tty)"
+source "$_gpg_agent_info"
+
+# Clean up.
+unset _gpg_agent_info
+
+# Disable GUI prompts inside SSH.
+if [[ -n "$SSH_CONNECTION" ]]; then
+  export PINENTRY_USER_DATA='USE_CURSES=1'
+fi
+
diff --git a/runcoms/zpreztorc b/runcoms/zpreztorc
index 932edc3..4fe15fc 100644
--- a/runcoms/zpreztorc
+++ b/runcoms/zpreztorc
@@ -94,13 +94,6 @@ zstyle ':prezto:module:prompt' theme 'sorin'
 # Auto start a session when Zsh is launched.
 # zstyle ':prezto:module:screen' auto-start 'yes'
 
-#
-# GPG-Agent
-#
-
-# Enable SSH-Agent protocol emulation.
-# zstyle ':prezto:module:gpg-agent' ssh-support 'yes'
-
 #
 # SSH-Agent
 #