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Added a comment: Linux to OS X ~/.ssh/git-annex-shell

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ewen 2014-11-15 00:02:02 +00:00 • committed by admin
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[[!comment format=mdwn
username="ewen"
subject="Linux to OS X ~/.ssh/git-annex-shell"
date="2014-11-15T00:02:02Z"
content="""
I installed git-annex on OS/X 10.9 (Mavericks) from the DMG file (the 10.10 DMG file from 2014-11-11, since there was no longer one linked for Mavericks -- it does seem to work locally on 10.9). Separately I installed git-annex 5.20141024~bpo70+1 on Debian Wheezy, from Backports. I created a git-annex on the OS X system, and was then trying to set up another git-annex of that on the Linux system, initiated from the Linux system. After some ssh tunnel magic (due to a firewall stopping git-annex's dream that everything can ssh into everything else without problems), I was able to \"git clone\" and \"git annex init\" on the Linux system. But ran into problems trying to initiate a \"git annex sync\" from the Linux end.
In particular I got this \"bash: git-annex-shell: command not found\" report, despite the fact that the OS X side *does* have \"~/.ssh/git-annex-shell\" (apparently set up when I ran git-annex on the OS X side first), and on the OS/X side running \"~/.ssh/git-annex-shell\" does work (well it says \"bad parameters\" and gives a list of commands).
It's not clear to me how git-annex is expecting that ~/.ssh/git-annex-shell will end up being found by the ssh connection initiated from the Linux side. AFAICT from \"git annex sync --debug REMOTE\" (and strace), all that the client end is running is a bare \"git-annex-shell\", so (a) it'd only be searching the path (as per original post), (b) it shouldn't be affected by the different expansion of ~ on Linux and OS/X (/home/ewen and /Users/ewen respectively -- the OS defaults), and (c) AFAICT nothing is adding ~/.ssh to the PATH. Maybe running something more from the DMG than just the command line \"git-annex\" sets something else up, which I'm expected to set up by hand, that makes \"~/.ssh/git-annex-shell\" be found?
I ended up working around it by noticing that the ssh shell was reading ~/.bashrc (which adds some of my local directories to the PATH), so I was able to add yet another helper script in that directory (~/.bin/, in my case). Beware it does have to be a direct symlink to the directory with the rest of the git-annex files though, not via another symlink, because the helper scripts only do one level of readlink. After that it seems to work.
(Possibly these \"make this command available on the PATH at this time\" dependencies could stand to be better documented on the OS X install page?)
Ewen
"""]]