Capistrano/Git not recognising checkout -B flag unless logged in via ssh - wordpress

Question

I'm trying to use capistrano to deploy a wordpress site to my account on dreamhost.
For the most part capistrano seems to be working. Here's the output from cap dev git:check
$ cap dev git:check
INFO [1cd5c6b7] Running /usr/bin/env mkdir -p /home/parisstilton/tmp/theparisstilton.com/ on theparisstilton.com
DEBUG [1cd5c6b7] Command: /usr/bin/env mkdir -p /home/parisstilton/tmp/theparisstilton.com/
INFO [1cd5c6b7] Finished in 1.895 seconds with exit status 0 (successful).
DEBUG Uploading /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh 0.0%
INFO Uploading /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh 100.0%
INFO [4ede30ed] Running /usr/bin/env chmod +x /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh on theparisstilton.com
DEBUG [4ede30ed] Command: /usr/bin/env chmod +x /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh
INFO [4ede30ed] Finished in 0.317 seconds with exit status 0 (successful).
INFO [8d47d9d7] Running /usr/bin/env mkdir -p /home/parisstilton/tmp/theparisstilton.com/ on theparisstilton.com
DEBUG [8d47d9d7] Command: /usr/bin/env mkdir -p /home/parisstilton/tmp/theparisstilton.com/
INFO [8d47d9d7] Finished in 1.668 seconds with exit status 0 (successful).
DEBUG Uploading /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh 0.0%
INFO Uploading /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh 100.0%
INFO [1aacdb9a] Running /usr/bin/env chmod +x /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh on theparisstilton.com
DEBUG [1aacdb9a] Command: /usr/bin/env chmod +x /home/parisstilton/tmp/theparisstilton.com/git-ssh.sh
INFO [1aacdb9a] Finished in 0.266 seconds with exit status 0 (successful).
DEBUG [bd5cfd74] Running /usr/bin/env git ls-remote git#bitbucket.org:sentur/partisstilton.git on theparisstilton.com
DEBUG [bd5cfd74] Command: ( GIT_ASKPASS=/bin/echo GIT_SSH=/home/parisstilton/tmp/theparisstilton.com/git-ssh.sh /usr/bin/env git ls-remote git#bitbucket.org:sentur/partisstilton.git )
DEBUG [bd5cfd74] 5cadb90b1a5d4bbe59c2eb8e3f3e108f49b98fd0 HEAD
DEBUG [bd5cfd74] 9451025272b2a594ffc2af259bfce50c66ff15fc refs/heads/dev
DEBUG [bd5cfd74] 5cadb90b1a5d4bbe59c2eb8e3f3e108f49b98fd0 refs/heads/master
DEBUG [bd5cfd74] Finished in 2.722 seconds with exit status 0 (successful).
DEBUG [baacc1b3] Running /usr/bin/env git ls-remote git#bitbucket.org:sentur/partisstilton.git on theparisstilton.com
DEBUG [baacc1b3] Command: ( GIT_ASKPASS=/bin/echo GIT_SSH=/home/parisstilton/tmp/theparisstilton.com/git-ssh.sh /usr/bin/env git ls-remote git#bitbucket.org:sentur/partisstilton.git )
DEBUG [baacc1b3] 5cadb90b1a5d4bbe59c2eb8e3f3e108f49b98fd0 HEAD
DEBUG [baacc1b3] 9451025272b2a594ffc2af259bfce50c66ff15fc refs/heads/dev
DEBUG [baacc1b3] 5cadb90b1a5d4bbe59c2eb8e3f3e108f49b98fd0 refs/heads/master
DEBUG [baacc1b3] Finished in 2.724 seconds with exit status 0 (successful).
When I deploy using the following code bundle exec cap dev deploy ( http://pastebin.com/fCWRjEyv ), capistrano fails at
DEBUG [e6f95da6] Command: cd /home/parisstilton/dev.theparisstilton.com/repo && ( GIT_ASKPASS=/bin/echo GIT_SSH=/home/parisstilton/tmp/theparisstilton.com/git-ssh.sh /usr/bin/env git checkout -B 20140806215353 origin/dev )
DEBUG [e6f95da6] error: unknown switch `B'
DEBUG [e6f95da6] usage: git checkout [options] <branch>
DEBUG [e6f95da6] or: git checkout [options] [<branch>] -- <file>...
However if I ssh into the dreamhost server and run the same command it works fine recognising the git checkout -B flag. I suspect that this may be because I have installed a more recent version of git (2.0.4) in my ~/packages/bin/ which is in my $PATH. Where as the default git on Dreamhost is git version 1.7.2.5.
[beehive]$ cd /home/parisstilton/dev.theparisstilton.com/repo && ( GIT_ASKPASS=/bin/echo GIT_SSH=/home/parisstilton/tmp/theparisstilton.com/git-ssh.sh /usr/bin/env git checkout -B 20140806215353 origin/dev )
Branch 20140806215353 set up to track remote branch dev from origin.
Switched to a new branch '20140806215353'

Answer 1

I managed to find a simple solution (though not sure if it's right, it works for me).
Editing the ~/.bashrc file to update $PATH as this is run by non-interactive shells where as ~/.bash_profile where I had originally updated my $PATH, is only run by bash on interactive shell login.
So here's the code.
$nano ~/.bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.
#add ~/packages/bin installed apps/git to $PATH
export PATH=~/packages/bin:$PATH