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Deploy a project using Git push
...on't pre-configure the location of your amazon-private-key.pem, either in /etc/ssh/ssh_config as an IdentityFile parameter or in ~/.ssh/config using the "[Host] - HostName - IdentityFile - User" layout described here...
...HOWEVER if Host is configured in ~/.ssh/config and different than HostName ...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...ely easy to reliably obtain exclusive locks without worrying about cleanup etc. There are examples on the man page as to how to use it in a shell script.
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How do you add an in-app purchase to an iOS application?
... are not authorized to make payments,
// due to parental controls, etc
}
}
// Call this when you want to restore all purchases
// regardless of the productID you gave to the initializer
public func beginRestorePurchases(){
// restore purchases, and give responses to self
SKPayme...
“static const” vs “#define” vs “enum”
...n alternative:
#ifdef VAR // Very bad name, not long enough, too general, etc..
static int const var = VAR;
#else
static int const var = 5; // default value
#endif
Whenever possible, instead of macros / ellipsis, use a type-safe alternative.
If you really NEED to go with a macro (for example...
Programmatically fire button click event?
...tton is being pressed by changing the button state (selected, highlighted, etc). If that won't work, so be it.
– XJones
Apr 11 '11 at 19:19
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How to call a method defined in an AngularJS directive?
...on through a couple levels (controller, to directive, to nested directive, etc.)
We originally went down this path but after some more research found that it made more sense and resulted in both more maintainable and readable code to expose events and properties that a directive will use for commu...
Does Python have “private” variables in classes?
...te. But the principle reasoning for hard enforced private in C++ and Java (etc) , compiler optimisation, doesn't really exist in Python, so by-convention private is good enough. Python convention generally is that it trusts that you'll behave yourself without supervision. (And its a newbie trap, but...
Select multiple columns in data.table by their numeric indices
...you should still be able to use other important functions like join tables etc.
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Correct idiom for managing multiple chained resources in try-with-resources block?
... throw newTException;
}
}
Similarly, you can chain three resources, etc.
As a mathematical aside, you could even chain three times by chaining two resources at a time, and it would be associative, meaning you would get the same object on success (because the constructors are associative), an...
What's the difference between URI.escape and CGI.escape?
... some feed -> which I then need to encode -> Pass to http client to fetch content. Now if I don't encode the external urls properly, the ruby based HTTP clients fail with invalid URI errors.
– amit_saxena
Nov 10 '14 at 15:58
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