[Assorted-commits] SF.net SVN: assorted:[1851] shell-tools/trunk/src/bash-commons/bashrc.bash

[<yan...@us...>]

Revision: 1851
          http://sourceforge.net/p/assorted/svn/1851
Author:   yangzhang
Date:     2013-03-31 22:38:44 +0000 (Sun, 31 Mar 2013)
Log Message:
-----------
Add update-agent, add more comments on refresh-agent

Modified Paths:
--------------
    shell-tools/trunk/src/bash-commons/bashrc.bash

Modified: shell-tools/trunk/src/bash-commons/bashrc.bash
===================================================================
--- shell-tools/trunk/src/bash-commons/bashrc.bash	2013-03-31 22:35:43 UTC (rev 1850)
+++ shell-tools/trunk/src/bash-commons/bashrc.bash	2013-03-31 22:38:44 UTC (rev 1851)
@@ -895,12 +895,20 @@
 
 # If current socket is no longer there (forwarded ssh agent connection no
 # longer exists) but the keychain script has a good socket, then use that one.
+# Useful if for instance you started a screen session from one ssh connection
+# (which has its own forwarded agent socket), then that connection dies and you
+# reconnect (now with a different forwarded agent socket), but all your screen
+# session shells still exist with a reference to the old socket - with this,
+# and with a run of update-agent, the shells can now use the new socket.
 refresh-agent() {
     if [[ ! -S $SSH_AUTH_SOCK ]] && ( . ~/.keychain/$HOSTNAME-sh && [[ -S $SSH_AUTH_SOCK ]] )
     then . ~/.keychain/$HOSTNAME-sh
     fi
 }
 
+# Save the current environment's agent.
+update-agent() { keychain --nogui --inherit any; }
+
 PROMPT_COMMAND=refresh-agent
 
 # TODO note that bash_completion usually does a ton of stuff (and in

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