A distributed, reliable key-value store for the most critical data of a distributed system

An easy-to-use secure configuration generator for web, database, and mail software

Tiny (2 KB) turboboosted JavaScript library for creating user interfaces. - redom/redom

DevOps is the professional practice of frequent, continued, and iterative improvements through measurable changes, the goal of which is to become a high-velocity organization thus improving business outcomes.

Last Christmas, the inimitable Matt Trout (mst) created an opinionated tour of CPAN where he recommended modules for some common problems. I think its brilliant, useful, and entertaining and I’ve decided to compile a high level overview all on one page in order to create a quick reference.

I’ve tried to distill his wisdom and wit down to a few words. But I recommend clicking the section headers and following the links to Matt’s original posts to see his actual real opinions in their full complexity. This single page can’t replace 16 great posts and he usually includes advice on the best way to use the module. You won’t want to miss that.

<p class="codepen" data-height="265" data-theme-id="light" data-default-tab="result" data-user="yuanchuan" data-slug-hash="YoqWeR" style="height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;" data-pen-title="Matrix digital rain (animated version)">
<span>See the Pen <a href="https://codepen.io/yuanchuan/pen/YoqWeR/">
Matrix digital rain (animated version)</a> by yuanchuan (<a href="https://codepen.io/yuanchuan">@yuanchuan</a>)
on <a href="https://codepen.io">CodePen</a>.</span>
</p>

sql.js is a port of SQLite to Webassembly, by compiling the SQLite C code with Emscripten. It uses a virtual database file stored in memory, and thus doesn't persist the changes made to the database. However, it allows you to import any existing sqlite file, and to export the created database as a JavaScript typed array.

There are no C bindings or node-gyp compilation here, sql.js is a simple JavaScript file, that can be used like any traditional JavaScript library. If you are building a native application in JavaScript (using Electron for instance), or are working in node.js, you will likely prefer to use a native binding of SQLite to JavaScript.

SQLite is public domain, sql.js is MIT licensed.

Sql.js predates WebAssembly, and thus started as an asm.js project. It still supports asm.js for backwards compatibility.

dygraphs is a fast, flexible open source JavaScript charting library.

It allows users to explore and interpret dense data sets.

The chart is interactive:

• you can mouse over to highlight individual values.
• You can click and drag to zoom.
• Double-clicking will zoom you back out.
• Shift-drag will pan.
• You can change the number and hit enter to adjust the averaging period.

Features:

• Handles huge data sets: dygraphs plots millions of points without getting bogged down.
• Interactive out of the box: zoom, pan and mouseover are on by default.
• Strong support for error bars / confidence intervals.
• Highly customizable: using options and custom callbacks, you can make dygraphs do almost anything.
• dygraphs is works in all recent browsers. You can even pinch to zoom on mobile/tablet devices!
• There's an active community developing and supporting dygraphs.

Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.

Performance

Varnish performs really, really well. It is usually bound by the speed of the network, effectively turning performance into a non-issue. We’ve seen Varnish delivering 20 Gbps on regular off-the-shelf hardware.

Flexibility

One of the key features of Varnish Cache, in addition to its performance, is the flexibility of its configuration language, VCL. VCL enables you to write policies on how incoming requests should be handled. In such a policy you can decide what content you want to serve, from where you want to get the content and how the request or response should be altered. And, you can extend Varnish with modules (VMODs).

C'est une numérotation à cinq chiffres permettant d'acheminer le courier à la commune désirée.

Les codes postaux ont été créés en 1964 par l'administration des PTT, devenu aujourd'hui La Poste. A cette époque son format était à deux chiffres, puis il a changé en 1972 pour être constitué de cinq chiffres. Ce sont ces codes postaux que nous utilisons aujourd'hui.

CodePostal.org se base sur des données OpenData pour proposer cet outil de recherche de code postal. Pour en savoir plus sur les sources des données qui permettent de proposer ce site, visitez la page dédiée.

(flycheck-define-checker perl-project-libs
  "A perl syntax checker."
  :command ("perl"
            "-MProject::Libs lib_dirs => [qw(local/lib/perl5)]"
            "-wc"
            source-inplace)
  :error-patterns ((error line-start
                          (minimal-match (message))
                          " at " (file-name) " line " line
                          (or "." (and ", " (zero-or-more not-newline)))
                          line-end))
  :modes (cperl-mode))

(add-hook 'cperl-mode-hook
          (lambda ()
            (flycheck-mode t)
            (setq flycheck-checker 'perl-project-libs)))

'(flycheck-perl-include-path
(quote
("your path to your perl libraries")))
'(flycheck-perl-executable "path to your perl executable")

% mojo generate lite_app optional
...
% $EDITOR optional

One could mark the date as optional by giving it a default value of undef:

#!/usr/bin/env perl
use Mojolicious::Lite -signatures;

get '/vote/:value/*when' => { when => undef } => sub ($c) {
    my $value = $c->stash('value');
    my $when  = $c->stash('when');
    $c->render(
        format => 'txt',
        text   => $value . ' ' . ( defined $when ? $when : 'nope' ) . "\n"
    );
};

app->start;

which then allows with-or-without the date queries:

% ./optional get /vote/42 2>/dev/null
42 nope
% ./optional get /vote/42/2020/01/07 2>/dev/null
42 2020/01/07
% 

Write to your GitHub activity chart. Contribute to ihabunek/github-vanity development by creating an account on GitHub.

This is home to Shields.io, a service for concise, consistent, and legible badges in SVG and raster format, which can easily be included in GitHub readmes or any other web page. The service supports dozens of continuous integration services, package registries, distributions, app stores, social networks, code coverage services, and code analysis services. Every month it serves over 470 million images.

I've been looking at Gitlab's CI pipeline to automate testing and deployment of a Perl App I've been writing.

Gitlab's documentation on the subject is very comprehensive https://docs.gitlab.com/ee/ci/pipelines.html however there's no Perl example https://docs.gitlab.com/ee/ci/examples/README.html so I did a bit of playing to get a working configuration for those who are interested.

Gitlab makes it extremely easy to use their CI by creating a gitlab-ci.yml file to control the pipeline.