Forem: Sergey Kislyakov

What would be a good first project in Ruby?

Sergey Kislyakov — Sun, 14 Feb 2021 18:31:41 +0000

I want to try Ruby since it's got a major release (3.0). What would be a good first project to do in Ruby? I'm okay with using gems, and I'm probably okay with trying out Rails (though it seems a bit harsh for a newcomer with all the code it generates).

Should I wait for Apple Silicon?

Sergey Kislyakov — Mon, 12 Oct 2020 06:39:43 +0000

I want to buy a MacBook. I thought about buying a MacBook Pro 13" 2020 32GB i7 (10-th gen), but then Apple announced their ARM processors. Should I wait and go for an ARM MacBook?

JetBrains Mono

Sergey Kislyakov — Fri, 17 Jan 2020 08:24:00 +0000

For those who've missed: JetBrains released a new font. It's called "JetBrains Mono" and it's open-source as well. It supports ligatures, 143 languages (wide range of Unicode characters) and it looks good (imo).

It's going to be the default font in IDEA 2020.1 (and its "forks": AppCode, PyCharm, etc).

JetBrains / JetBrainsMono

JetBrains Mono – the free and open-source typeface for developers

JetBrains Mono: a typeface made for developers

JetBrains Mono is available as a standalone download, and is also bundled in all JetBrains IDEs. Discover more font features & design on its web page.

Default version of JetBrains Mono comes with OpenType features and ligatures (which can always be toggled on & off in the settings). If your IDE doesn’t support OpenType, use a special version of the font — JetBrains Mono NL, which doesn’t include any ligatures.

Installation

JetBrains IDEs

The most recent version of JetBrains Mono ships with your JetBrains IDE starting with v2019.3.

Select JetBrains Mono in the IDE settings: go to Preferences/Settings → Editor → Font, and then select JetBrains Mono from the Font dropdown.

Brew (macOS only)

Install it using the font-jetbrains-mono cask:

brew install --cask font-jetbrains-mono

Manual installation

On Mac/Windows:

Download font.
Unzip the archive and install the font
- Mac…

View on GitHub

Demo, characters table, comparisons with other fonts, and more: here.

Speed up macOS terminal

Sergey Kislyakov — Wed, 15 Jan 2020 15:06:21 +0000

MacOS does ASL (Apple System Log) log lookup each time you open a tab in the terminal (you can confirm that by running sudo fs_usage | grep 'asl.*login' in a tab and open another one, clear buffer in the first one and open a new tab again to see it indeed does look up each time). There's a way to prevent that though. I'm not sure how important those logs are, the only thing that changed for me was "Last login" disappearance.

iTerm 2:

Open Preferences - Profiles.
Choose your profile (Default by default 😜).
In the "General" tab, change Command from Login shell to /bin/bash (or any other *sh you're using).

You can confirm that iTerm does not lookup ASL logs anymore with sudo fs_usage | grep 'asl.*login' in one tab. Opening tabs should not show output that contain lines looking like private/var/log/asl/2020.01.12.U501.asl, though it may contain something like this:

17:58:04  stat64            /usr/lib/system/libsystem_asl.dylib                                              0.000008   login
17:58:04  stat64            /usr/lib/libsasl2.2.dylib                                                        0.000010   login
17:58:04  stat64            private/etc/asl/.noquota                                                         0.000024   login

That's fine because it does not look up for private/var/log/asl.

Terminal.app:

A bit complicated this time.

Create a symlink of your shell (e.g. /bin/bash) to /usr/local/bin/bash (e.g. ln -s /bin/bash /usr/local/bin/bash). You have to do that because Terminal.app will execute /usr/bin/login which does the ASL lookup if your shell is a default one (default shells are defined in /etc/shells, hence why we link it to /usr/local/bin, because shells in this folder are not defined in the file). Non-default shell will make Terminal.app execute /usr/bin/login -q, and -q skips ASL log look ups completely.
Open Preferences - General.
Change Shells open with to Command and put /usr/local/bin/bash there.
Add -bash (or -zsh or -fish) to Profiles - Basic (Default) - Shell - Ask before closing. This will prevent popups like this when you're trying to close a tab:

You're done, confirm that you don't look up ASL logs using methods I described above.

Be careful with .pop

Sergey Kislyakov — Tue, 26 Mar 2019 10:55:42 +0000

I've been fighting with a weird bug in my app: if I'm sending a push notification to 2+ users, only the first one receives the notification.

The bug was that I .poped the message key from the data.

Here's how it works (pseudo-code):

def send(users: [User], data: dict):
    notifications = reduce(lambda acc, user: acc + [Notification(user, data)], users, [])
    db.bulk_insert(notifications)
    for notification in notifications:
        notification.send()

...

def Notification.send(self):
    message = self.data.pop('message') 
    Firebase.send(message, self.data)

The first notification will be sent and I thought that message would be popped out of self.data, but actually it would be popped out of the dict that self.data points to! That means that every Notification object that has been initialized in the send function using Notification(user, data) (and not Notification(user, data.copy())) would not have data['message'] anymore, leading to unexpected behavior.

If you really need to get rid of a key in a dict, you should .copy() it before mutating.
If you don't - just stick to .get().

VSCode in browser

Sergey Kislyakov — Thu, 07 Mar 2019 12:04:11 +0000

Some folks created a docker container that contains a VS Code instance and you can access it [VS Code] in your browser. That looks interesting. If you missed it, here's the link to the Github repo:

https://github.com/codercom/code-server

IDEA for everything?

Sergey Kislyakov — Tue, 05 Mar 2019 07:21:59 +0000

I'd like to know how IDEA users handle their workspace.

Do you:

Install language plugins (Ruby, Python, Go, etc.) for IDEA.
Install RubyMine, PyCharm, GoLand, etc.

As for me, I prefer to have one IDE and a bunch of plugins. In fact, IDEA provides more SDK for plugins, according to the Elixir plugin page (projects, modules, building).

How to categorize Github stars?

Sergey Kislyakov — Mon, 04 Mar 2019 14:31:21 +0000

I star projects that I find interesting and may use later and the amount of pages in my Star page grows. Anyone knows a tool to somehow split them into some categories/group by tags? Thanks.

Set tag weight

Sergey Kislyakov — Sat, 23 Feb 2019 10:00:52 +0000

Iirc there was a way to set tag weight somewhere, but I can't find a way to do that now. How I can do that?

What's headless CMS?

Sergey Kislyakov — Wed, 06 Feb 2019 18:42:43 +0000

Could someone explain me what's the idea of this technology? Why I'd choose it over Github pages or something like that?

Is it okay to have an article without no content?

Sergey Kislyakov — Sat, 29 Sep 2018 11:53:26 +0000

Over the time I've seen a bunch of articles that has ZERO useful content in them but the canonical url that contains the article. Is it allowed on dev.to? I'm pissed off by these articles, actually.

How to become a designer?

Sergey Kislyakov — Wed, 26 Sep 2018 14:19:04 +0000

I'm a programmer for at least 6 years, and I'd want to expand my abilities even more and learn the art of design. So I've got some questions:

How people become designers?
What books/sites/etc. they read?
What tools they use?

Thanks in advice.