[Fab-user] lcd seems broken

[Paul Hoffman]

...but maybe it is just me.

print(os.getcwd())
with lcd("/usr/bin"):
print(os.getcwd())

...prints the same location name twice, and it is clear that the cd didn't
happen.

print(os.getcwd())
with lcd("/does/not/exist"):
print(os.getcwd())

...prints the same location name twice. lcd doesn't throw an error, which I
would have thought it would.

Is this what is expected?

--Paul Hoffman

[Ronan Amicel]

Hi,

Try this:

with lcd('/tmp'):
local('pwd')

And this:

with lcd('/non/existing'):
local('pwd')

Hope this helps.

Post by Paul Hoffman
...but maybe it is just me.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice, and it is clear that the cd didn't
happen.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice. lcd doesn't throw an error, which I
would have thought it would.
Is this what is expected?
--Paul Hoffman
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https://lists.nongnu.org/mailman/listinfo/fab-user

[Brandon Whaley]

lcd is intended to modify the local() call (and maybe get, put, et al? I
haven't tested). It does not actually change the cwd afaik.

Post by Paul Hoffman

from fabric.api import local, lcd
print fabric.api.local('pwd', capture=True)

[localhost] local: pwd
/home/redkrieg/projects/fabric
... print fabric.api.local('pwd', capture=True)
...
[localhost] local: pwd
/usr/bin

Post by Paul Hoffman
...but maybe it is just me.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice, and it is clear that the cd didn't
happen.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice. lcd doesn't throw an error, which
I would have thought it would.
Is this what is expected?
--Paul Hoffman
_______________________________________________
Fab-user mailing list
https://lists.nongnu.org/mailman/listinfo/fab-user

[Peter Sanchez]

Yes. It's expected. Fabric doesn't evaluate the context until a fabric
"command" is actually run. See:

https://github.com/fabric/fabric/blob/master/fabric/context_managers.py#L309

Post by Paul Hoffman
...but maybe it is just me.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice, and it is clear that the cd didn't
happen.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice. lcd doesn't throw an error, which
I would have thought it would.
Is this what is expected?
--Paul Hoffman
_______________________________________________
Fab-user mailing list
https://lists.nongnu.org/mailman/listinfo/fab-user

[Paul Hoffman]

Thanks, that makes sense. Well, it's completely weird from a programming
standpoint, but once explained, I can see where it might be useful.

--Paul Hoffman

Post by Peter Sanchez
Yes. It's expected. Fabric doesn't evaluate the context until a fabric
https://github.com/fabric/fabric/blob/master/fabric/context_managers.py#L309

Post by Paul Hoffman
...but maybe it is just me.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice, and it is clear that the cd
didn't happen.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice. lcd doesn't throw an error, which
I would have thought it would.
Is this what is expected?
--Paul Hoffman
_______________________________________________
Fab-user mailing list
https://lists.nongnu.org/mailman/listinfo/fab-user

[Issa Ashwash]

This context manager is identical to cd
<http://docs.fabfile.org/en/1.10/api/core/context_managers.html#fabric.context_managers.cd>,
except that it changes a different env var (lcwd, instead of cwd) and
thus only affects the invocation of local
<http://docs.fabfile.org/en/1.10/api/core/operations.html#fabric.operations.local> and
the local arguments to get
<http://docs.fabfile.org/en/1.10/api/core/operations.html#fabric.operations.get>
/put
<http://docs.fabfile.org/en/1.10/api/core/operations.html#fabric.operations.put>
.

From
http://docs.fabfile.org/en/1.10/api/core/context_managers.html#fabric.context_managers.lcd

If you use local('pwd'), it will reflect the change.

Post by Ronan Amicel
local('pwd')

[localhost] local: pwd
/home/issa
''
... local('pwd')
...
[localhost] local: pwd
/usr/bin
''
...but maybe it is just me.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice, and it is clear that the cd didn't
happen.
print(os.getcwd())
print(os.getcwd())
...prints the same location name twice. lcd doesn't throw an error, which
I would have thought it would.
Is this what is expected?
--Paul Hoffman
_______________________________________________
Fab-user mailing list
https://lists.nongnu.org/mailman/listinfo/fab-user