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Git: what is a dangling commit/blob and where do they come from?
...orking with your git repository, you may end up backing out of operations, and making other moves that cause intermediary blobs, and even some things that git does for you to help avoid loss of information.
Eventually (conditionally, according to the git gc man page) it will perform garbage collect...
How to resize an image with OpenCV2.0 and Python2.6
I want to use OpenCV2.0 and Python2.6 to show resized images. I used and adopted this example but unfortunately, this code is for OpenCV2.1 and does not seem to be working on 2.0. Here my code:
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How can you integrate a custom file browser/uploader with CKEditor?
...ed. An optional third parameter can be text that you want displayed in a standard alert dialog, such as "illegal file" or something. Set url to an empty string if the third parameter is an error message.
CKEditor's "upload" tab will submit a file in the field "upload" - in PHP, that goes to $_FILES...
encryption/decryption with multiple keys
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GnuPG does multi-key encryption in standard.
The following command will encrypt doc.txt using the public key for Alice and the public key for Bob. Alice can decrypt using her private key. Bob can also decrypt using his private key.
gpg --encrypt --recipient al...
Once upon a time, when > was faster than < … Wait, what?
...tc. He also explains that the actual meaning of depth values (which is top and which isn't) can also be customized. I understand so far. And then the author says something unbelievable:
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Equivalent of varchar(max) in MySQL?
...eat to these column types was that they usually required special functions and statements to access and modify the data (e.g. READTEXT, WRITETEXT, and UPDATETEXT)
In SQL Server 2005, varchar(max) was introduced to unify the data and queries used to retrieve and modify data in large columns. The dat...
Sanitizing strings to make them URL and filename safe?
...certain strings so that they are safe to use in the URL (like a post slug) and also safe to use as file names. For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name.
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Soft wrap at 80 characters in Vim in window of arbitrary width
...t a large minimum width for the line numbers column via :set numberwidth=6 and
then you could resize your window with :set columns=86 (or with the mouse) to the proper size.
If you edit a file with a million lines in it, you may have trouble, but that's unlikely. You're wasting 6 columns of sc...
List vs List
...( aMap ); // Perfectly legal (adding a Map to a List of Maps)
// But maps and hashMaps are the same object, so this should be the same as
hashMaps.add( aMap ); // Should be illegal (aMap is not a HashMap)
So this is why a List of HashMaps shouldn't be a List of Maps.
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Enabling ProGuard in Eclipse for Android
The new documentation on ProGuard for Android says to add a line to the default.properties file in the project home directory. However, on opening this file, I read at the top:
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