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In Git, how can I write the current commit hash to a file in the same commit

I'm trying to do a fancy stuff here with Git hooks, but I don't really know how to do it (or if it's possible). 7 Answers ...
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What is the difference between the hidden attribute (HTML5) and the display:none rule (CSS)?

...abbed interface is merely a kind of overflow presentation — one could equally well just show all the form controls in one big page with a scrollbar. It is similarly incorrect to use this attribute to hide content just from one presentation — if something is marked hidden, it is hidden from all p...
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Difference between Big-O and Little-O Notation

... f ∈ O(g) says, essentially For at least one choice of a constant k > 0, you can find a constant a such that the inequality 0 <= f(x) <= k g(x) holds for all x > a. Note that O(g) is the set of all functions for which this condit...
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What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?

...trings, would it not be better to just have Unicode since that would cover all the cases? Well it is better to have only Unicode but Python was created before Unicode was the preferred method for representing strings. It takes time to transition the string type in a language with many users, in Pyth...
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Checking whether a variable is an integer or not [duplicate]

...t use type. It is almost never the right answer in Python, since it blocks all the flexibility of polymorphism. For instance, if you subclass int, your new class should register as an int, which type will not do: class Spam(int): pass x = Spam(0) type(x) == int # False isinstance(x, int) # True Thi...
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Where does Jenkins store configuration files for the jobs it runs?

...y different EC2 instance at any point. We have a bunch of Puppet manifests allowing us to easily reinstall the software on the EC2 instance, but custom configuration files, like the ones for the jobs I create in Jenkins, would be deleted after the move. ...
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Twitter bootstrap 3 two columns full height

... display: table-cell; float: none; } } Codepen demo Now, for smaller screens, the columns will behave like default bootstrap columns (each getting full width). 3) If the 1:3 ratio is necessary for all screen widths - then it's probably a better to remove bootstrap's col-md-* classes fro...
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Difference between GIT and CVS

...in the middle, the repository can be left in an inconsistent state. In Git all operations are atomic: either they succeed as whole, or they fail without any changes. Changesets. Changes in CVS are per file, while changes (commits) in Git they always refer to the whole project. This is very important...
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When should I use the HashSet type?

... in every respect because they have the same membership, and membership is all that matters. It's somewhat dangerous to iterate over a HashSet<T> because doing so imposes an order on the items in the set. That order is not really a property of the set. You should not rely on it. If order...
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Is it wrong to use Deprecated methods or classes in Java?

...tated @Deprecated is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists. The method is kept in the API for backward compatibility for an unspecified period of time, and may in future releases be removed. That is, no, it's not ...