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Concurrent vs serial queues in GCD
...execution policy, not how you queue the block. Sync waits for the block to complete, async doesn't.
– Jano
Oct 4 '13 at 11:25
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Implementing comparison operators via 'tuple' and 'tie', a good idea?
... clearer. So I go back to writing the structs myself, including any needed comparision operators.
Since especially the operator< can be quite cumbersome, I thought of circumventing this whole mess by just relying on the operations defined for tuple :
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How to make a select with array contains value clause in psql
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How do I get logs/details of ansible-playbook module executions?
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If you pass the -v flag to ansible-playbook on the command line, you'll see the stdout and stderr for each task executed:
$ ansible-playbook -v playbook.yaml
Ansible also has built-in support for logging. Add the following lines to your ansible configuration file:
[defaul...
Change working directory in my current shell context when running Node script
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Oops. Ya, that is the command I am actually using. However, when I use it in a simple script it still does not seem to work (once the script exits I am still in the old directory) If I call process.cwd() it says I am in the directory I should be ...
Delete directories recursively in Java
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You should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
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Is it valid to have a tag inside another tag?
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Create empty queryset by default in django form fields
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Very simple log4j2 XML configuration file using Console and File appender
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For completeness, use of immediateFlush="false" is especially recommended when using Async Loggers or AsyncAppender.
– Remko Popma
Jan 19 '14 at 2:33
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How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
...riginal QuerySet, the original results are grouped
according to the unique combinations of the fields specified in the
values() clause"
annotate() : specifies an operation over the grouped values
Django docs:
The second way to generate summary values is to generate an independent summary for each ...