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Using git repository as a database backend
... during the session.
$ GIT_INDEX_FILE=user_index_file git reset --hard <starting_commit_hash>
#
# Change data and save it to `changed_file`
#
# Save changed data to the Git object database. Returns a SHA1 hash to the blob.
$ cat changed_file | git hash-object -t blob -w --stdin
da39a3ee5e6b4...
How to recursively find the latest modified file in a directory?
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Just because you started to care about newlines in filenames with -print0 it won't prevent to break it when you sort it line by line.
– pihentagy
Jul 14 at 13:34
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Vagrant's port forwarding not working [closed]
I'm running into a small problem at the end of the Getting Started guide for vagrant . I'm working on a CentOS basebox that has Apache2 running (provisioning via Puppet). I've set up port forwarding for web requests using the following line in Vagrantfile :
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Split string every nth character?
... print(wrap('12345678', 3)) splits the string into groups of 3 digits, but starts in front and not behind. Result: ['123', '456', '78']
– Atalanttore
May 20 '19 at 19:20
2
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Default parameters with C++ constructors [closed]
...ue), then making them with default arguments is even worse. I've recently started to come around to the opinion that ctor arguments are bad, because your ctor logic should be as minimal as possible. How do you deal with error handling in the ctor, should somebody pass in an argument that doesn't m...
Converting Storyboard from iPhone to iPad
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@PiotrJustyna you can do that. Press start a bounty under the question, select desired amount and Reward existing answer...
– Filip Radelic
Jun 28 '12 at 1:10
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How can I check for an empty/undefined/null string in JavaScript?
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@bdukes when you start to care about that kind of micro-optimizations, I don't think Chrome is the browser where you are having most of your performance problems...
– Vincent Robert
Sep 27 '10 at 16:18
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Problems with contenttypes when loading a fixture in Django
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@winirvana because after you start from scratch and do syncdb, newly created ContentType and Permission are not guaranteed to get same id as they had before. Your data dump contains ids which might reference different objects on anather database where yo...
What does mvn install in maven exactly do
I just started using Maven and I was told to do mvn install in a specific directory.
7 Answers
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JSON parsing using Gson for Java
...e the lack of information (even gson page), that's what I found and used:
starting from
Map jsonJavaRootObject = new Gson().fromJson("{/*whatever your mega complex object*/}", Map.class)
Each time gson sees a {}, it creates a Map (actually a gson StringMap )
Each time gson sees a '', it creates...