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How to pass arguments into a Rake task with environment in Rails? [duplicate]
...rnate way to go about this: use OS environment variables. Benefits of this approach:
All dependent rake tasks get the options.
The syntax is a lot simpler, not depending on the rake DSL which is hard to figure out and changes over time.
I have a rake task which requires three command-line option...
How to redirect output of an entire shell script within the script itself?
...t of script with redirection...
} > file1 2>file2 # ...and others as appropriate...
#...residue of script without redirection...
The braces '{ ... }' provide a unit of I/O redirection. The braces must appear where a command could appear - simplistically, at the start of a line or after a s...
What's the difference between Invoke() and BeginInvoke()
... mostly geared towards Delegate.BeginInvoke, I suspect.
For Windows Forms apps, I would suggest that you should usually use BeginInvoke. That way you don't need to worry about deadlock, for example - but you need to understand that the UI may not have been updated by the time you next look at it! I...
Pushing read-only GUI properties back into ViewModel
... even better to create just one Size property, combining Heigth and Width. Approx. 50% less code.
– Gerard
Feb 14 '14 at 14:07
1
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Why do Java webapps use .do extension? Where did it come from?
.... The user guide puts it like this:
5.4.2 Configure the ActionServlet Mapping
Note: The material in this section is not specific to Struts. The
configuration of servlet mappings is
defined in the Java Servlet
Specification. This section describes
the most common means of configurin...
Stop node.js program from command line
...
@Eleeist, You've probably remapped your keys or something. Ctrl+C works fine. In any case, that's a separate issue from your real problem. You should post a "Ctrl+C doesn't work" question over at SuperUser.com.
– Brad
...
How do I write good/correct package __init__.py files
...a script that has grown into multiple scripts without breaking an existing application. But if you're designing a package from the start. I think it's best to leave __init__.py files empty.
for example:
foo.py - contains classes related to foo such as fooFactory, tallFoo, shortFoo
then the app g...
XPath to select multiple tags
... incorrect.
You can't be definitive without definition, though I'm quite happy to delete my answer as genuinely incorrect if the OP clarifies his question such that I am incorrect.
share
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improve ...
How do I specify different layouts for portrait and landscape orientations?
...y by say, adding the sub-folder "layout-land" to
"Your-Project-Directory\app\src\main\res"
since then any layout.xml file under this sub-folder will only work for landscape mode automatically.
Use "layout-port" for portrait mode.
...
What exactly are DLL files, and how do they work?
...es that can contain executable code and resources like images, etc. Unlike applications, these cannot be directly executed, but an application will load them as and when they are required (or all at once during startup).
Are they important?
Most applications will load the DLL files they require at...