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Best practice to mark deprecated code in Ruby?
...st + " whatever deprecation message here"
When used correctly, this will include the absolute path to the file and line where the deprecated call was used. More information about Kernel::caller is available here
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How to restore the permissions of files and directories within git if they have been modified?
...ing patches using git diff -p. So all we need is:
create a reverse patch
include only the permission changes
apply the patch to our working copy
As a one-liner:
git diff -p -R --no-ext-diff --no-color \
| grep -E "^(diff|(old|new) mode)" --color=never \
| git apply
you can also add i...
How can I view an old version of a file with Git?
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Can you include the time, à la git log --since='2016-04-28 23:59:59 +0100'?
– dumbledad
May 3 '16 at 12:55
9
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Jackson serialization: ignore empty values (or null)
... the wrong place - it needs to be on the class, not the field. i.e:
@JsonInclude(Include.NON_NULL) //or Include.NON_EMPTY, if that fits your use case
public static class Request {
// ...
}
As noted in comments, in versions below 2.x the syntax for this annotation is:
@JsonSerialize(include ...
What's the valid way to include an image with no src?
... far more obvious when images do not work properly. The old blank image is included as an "Always Works" example, as well as a brief description of what you are seeing: memso.com/Test/BlankImage.html This lead me to realize that the valid blank data gif is the only reusable option for modern browse...
How do I clone a Django model instance object and save it to the database?
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The Django documentation for database queries includes a section on copying model instances. Assuming your primary keys are autogenerated, you get the object you want to copy, set the primary key to None, and save the object again:
blog = Blog(name='My blog', tagline='...
Export/import jobs in Jenkins
...or code HTTP 403 Problem accessing /createItem. Reason: No valid crumb was included in the request. You'll need to generate a CSRF protection token for the target Jenkins server. Follow the advice of @Kenorb from this thread: stackoverflow.com/questions/38137760/…
– Mig82
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Count character occurrences in a string in C++
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#include <algorithm>
std::string s = "a_b_c";
size_t n = std::count(s.begin(), s.end(), '_');
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What is a “translation unit” in C++
...rce file,
plus the contents of any header files
directly or indirectly included by it,
minus those lines that were ignored
using conditional preprocessing
statements.
A single translation unit can be
compiled into an object file, library,
or executable program.
The notion of ...
Delete files older than 15 days using PowerShell
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Thanks for this, esp including the 'WhatIf' switch for testing.
– JoelAZ
Jul 30 at 18:33
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