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How to refer environment variable in POM.xml?
...
Check out the Maven Properties Guide...
As Seshagiri pointed out in the comments, ${env.VARIABLE_NAME} will do what you want.
I will add a word of warning and say that a pom.xml should completely describe your project so please use environment variables ju...
How does grep run so fast?
...s a note from the author, Mike Haertel:
GNU grep is fast because it AVOIDS LOOKING AT EVERY INPUT BYTE.
GNU grep is fast because it EXECUTES VERY FEW INSTRUCTIONS FOR EACH
BYTE that it
does look at.
GNU grep uses the well-known Boyer-Moore algorithm, which looks first
for the fi...
Difference between no-cache and must-revalidate
...
I believe that must-revalidate means :
Once the cache expires, refuse to return stale responses to the user
even if they say that stale responses are acceptable.
Whereas no-cache implies :
must-revalidate plus the fact the response become...
How can I call a custom Django manage.py command directly from a test driver?
...gement_task.Command()
opts = {} # kwargs for your command -- lets you override stuff for testing...
cmd.handle_noargs(**opts)
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Git: Show all of the various changes to a single line in a specified file over the entire git histor
...ay to answer your question.
Assuming that line 110 is the line saying var identifier = "SOME_IDENTIFIER";, then do this:
git log -L110,110:/lib/client.js
This will return every commit which touched that line of code.
[Git Documentation (see the "-L" command line paramenter)]
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Overloading member access operators ->, .*
...t;
proxy &operator->() const
{ return * target; }
};
void f() {
client x = { 3 };
proxy y = { & x };
proxy2 z = { & y };
std::cout << x.a << y->a << z->a; // print "333"
}
->*
This one is only tricky in that there is nothing ...
Why does Go have a “goto” statement
...
Goto is a good idea when none of the built-in control features do quite what you want, and when you can express what you want with a goto. (It's a shame in these cases in some languages when you don't have a goto. You end up abusing some ...
How to prevent http file caching in Apache httpd (MAMP)
...ag
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
Header set Pragma "no-cache"
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
</ifModule>
</filesMatch>
100% Prevent Files from being cached
This is similar to how google ads employ the head...
How do I choose between Semaphore and SemaphoreSlim?
... that SemaphoreSlim does not permit named semaphores, which can be system-wide. This would mean that a SemaphoreSlim could not be used for cross-process synchronization.
The MSDN documentation also indicates that SemSlim should be used when "wait times are expected to be very short". That would usu...
How do I pass extra arguments to a Python decorator?
...e @log_decorator, it must be @log_decorator()
– Stardidi
Mar 11 at 16:26
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