files.append not detecting lines present if ~ used

[bitprophet]

Description

The files.append always appends the lines, whether they're present or not.

It appears a tilde in the path is a factor.

def test_append():
    files.append('~/lines', ['line1', 'line2'])

Replaced '~/lines' with 'lines' and it behaves as expected. It is the file presence detection that is failing:

Commands to run: test_append
[jaracoco@box758.bluehost.com] Executing task 'test_append'
[jaracoco@box758.bluehost.com] run: /bin/bash -l -c "test -e \"~/lines\""
[jaracoco@box758.bluehost.com] run: /bin/bash -l -c "echo 'line1' >> ~/lines"
[jaracoco@box758.bluehost.com] run: /bin/bash -l -c "test -e \"~/lines\""
[jaracoco@box758.bluehost.com] run: /bin/bash -l -c "echo 'line2' >> ~/lines"

As you can see, even after the first command is run, it fails to detect the file. I've replicated this on Ubuntu 10.04 and the redhat variant at Bluehost.

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Originally submitted by Jason R. Coombs (jaraco) on 2011-06-24 at 01:55pm EDT