Merge 295fe153ad into ee31f5b70d

README.md

@@ -10,15 +10,12 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1603 TILs and counting..._
+_1595 TILs and counting..._
 
 See some of the other learning resources I work on:
 - [Ruby Operator Lookup](https://www.visualmode.dev/ruby-operators)
 - [Vim Un-Alphabet](https://www.youtube.com/playlist?list=PL46-cKSxMYYCMpzXo6p0Cof8hJInYgohU)
 
-If you've learned something here, support my efforts writing daily TILs by
-[buying me a coffee](https://buymeacoffee.com/jbranchaud) 💜
-
 ---
 
 ### Categories
@@ -114,8 +111,6 @@ If you've learned something here, support my efforts writing daily TILs by
 - [AWS CLI Requires Groff Executable](aws/aws-cli-requires-groff-executable.md)
 - [Find And Follow Server Logs](aws/find-and-follow-server-logs.md)
 - [Sign Up User With Email And Password](aws/sign-up-user-with-email-and-password.md)
-- [SSH Into An ECS Container](aws/ssh-into-an-ecs-container.md)
-- [Use Specific AWS Profile With CLI](aws/use-specific-aws-profile-with-cli.md)
 
 ### Brew
 
@@ -183,7 +178,6 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Define HSL Colors With Alpha Values](css/define-hsl-colors-with-alpha-values.md)
 - [Display Responsive iframe Maintaining Aspect Ratio](css/display-responsive-iframe-maintaining-aspect-ratio.md)
 - [Dry Up SCSS With Mixins](css/dry-up-scss-with-mixins.md)
-- [Filter Blur Requires Expensive Calculation](css/filter-blur-requires-expensive-calculation.md)
 - [Give Elements The Same Width With Flexbox](css/give-elements-the-same-width-with-flexbox.md)
 - [Let Pointer Events Pass Through An Element](css/let-pointer-events-pass-through-an-element.md)
 - [Lighten And Darken With CSS Brightness Filter](css/lighten-and-darken-with-css-brightness-filter.md)
@@ -956,8 +950,6 @@ If you've learned something here, support my efforts writing daily TILs by
 
 ### Rails
 
-- [Access Secrets In A Rails 5.2 App](rails/access-secrets-in-a-rails-5-2-app.md)
-- [ActiveRecord Query For This Or That](rails/active-record-query-for-this-or-that.md)
 - [Add A Check Constraint To A Table](rails/add-a-check-constraint-to-a-table.md)
 - [Add A Database Index If It Does Not Already Exist](rails/add-a-database-index-if-it-does-not-already-exist.md)
 - [Add A Foreign Key Reference To A Table](rails/add-a-foreign-key-reference-to-a-table.md)
@@ -966,7 +958,8 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Add ActiveRecord Error Not Tied To Any Attribute](rails/add-activerecord-error-not-tied-to-any-attribute.md)
 - [Add React With Webpacker To A New Rails App](rails/add-react-with-webpacker-to-a-new-rails-app.md)
 - [Add timestamptz Columns With The Migration DSL](rails/add-timestamptz-columns-with-the-migration-dsl.md)
-- [Adjust The Production Log Level](rails/adjust-the-production-log-level.md)
+- [Access Secrets In A Rails 5.2 App](rails/access-secrets-in-a-rails-5-2-app.md)
+- [ActiveRecord Query For This Or That](rails/active-record-query-for-this-or-that.md)
 - [Advance The Date](rails/advance-the-date.md)
 - [Allow Associations To Be Optional](rails/allow-associations-to-be-optional.md)
 - [Allow List Params Anywhere With Strong Params](rails/allow-list-params-anywhere-with-strong-params.md)
@@ -1009,7 +1002,6 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Different Ways To Add A Foreign Key Reference](rails/different-ways-to-add-a-foreign-key-reference.md)
 - [Disambiguate Where In A Joined Relation](rails/disambiguate-where-in-a-joined-relation.md)
 - [Empty find_by Returns First Record](rails/empty-find-by-returns-first-record.md)
-- [Enforce Locals Passed To A Partial](rails/enforce-locals-passed-to-a-partial.md)
 - [Ensure A Rake Task Cannot Write Data](rails/ensure-a-rake-task-cannot-write-data.md)
 - [Ensure Migrations Use The Latest Schema](rails/ensure-migrations-use-the-latest-schema.md)
 - [Ensure Record Saved With after_commit Callback](rails/ensure-record-saved-with-after-commit-callback.md)
@@ -1540,7 +1532,6 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Find Newer Files](unix/find-newer-files.md)
 - [Find Occurrences Of Multiple Values With Ripgrep](unix/find-occurrences-of-multiple-values-with-ripgrep.md)
 - [Find Top-Level Directories Matching A Pattern](unix/find-top-level-directories-matching-a-pattern.md)
-- [Fix Previous Command With fc](unix/fix-previous-command-with-fc.md)
 - [Fix Shim Path After asdf Upgrade](unix/fix-shim-path-after-asdf-upgrade.md)
 - [Fix Unlinked Node Binaries With asdf](unix/fix-unlinked-node-binaries-with-asdf.md)
 - [Forward Multiple Ports Over SSH](unix/forward-multiple-ports-over-ssh.md)
@@ -1581,7 +1572,6 @@ If you've learned something here, support my efforts writing daily TILs by
 - [List Parent pid With ps](unix/list-parent-pid-with-ps.md)
 - [List Stats For A File](unix/list-stats-for-a-file.md)
 - [List The Available JDKs](unix/list-the-available-jdks.md)
-- [List The PID And Name Of Current Shell Process](unix/list-the-pid-and-name-of-current-shell-process.md)
 - [List The Stack Of Remembered Directories](unix/list-the-stack-of-remembered-directories.md)
 - [List TXT DNS Records For A Domain](unix/list-txt-dns-records-for-a-domain.md)
 - [Load Env Vars In Bash Script](unix/load-env-vars-in-bash-script.md)
@@ -1896,7 +1886,6 @@ If you've learned something here, support my efforts writing daily TILs by
 
 - [A Better Way To Reload ZSH Configuration](zsh/a-better-way-to-reload-zsh-configuration.md)
 - [Add To The Path Via Path Array](zsh/add-to-the-path-via-path-array.md)
-- [Create And Jump Into A Directory](zsh/create-and-jump-into-a-directory.md)
 - [Link A Scalar To An Array](zsh/link-a-scalar-to-an-array.md)
 - [Use A Space To Exclude Command From History](zsh/use-a-space-to-exclude-command-from-history.md)
 

aws/ssh-into-an-ecs-container.md

@@ -1,50 +0,0 @@
-# SSH Into An ECS Container
-
-In [Connect To Production Rails Console on AWS /
-Flightcontrol](https://www.visualmode.dev/connect-to-production-rails-console-aws-flightcontrol),
-I went into full detail about how to access `rails console` for a production
-Rails app running in an ECS container.
-
-A big part of that process was establishing an SSH connection to the ECS container.
-
-To do that, I need to know my region, container ID, and task ID. I can get the
-first two by listing my clusters and finding the cluster/container that houses
-the Rails app.
-
-```bash
-$ aws ecs list-clusters
-{
-    "clusterArns": [
-        "arn:aws:ecs:us-east-2:123:cluster/rails-app-abc123"
-    ]
-}
-```
-
-The region then is `us-east-2` and the container ID is `rails-app-abc123`.
-
-I can use that to find the task ID:
-
-```bash
-$ aws ecs list-tasks --region us-east-2 --cluster rails-app-abc123
-{
-    "taskArns": [
-        "arn:aws:ecs:us-east-2:123:task/rails-app-abc123/8526b3191d103bb1ff90c65a655ad004"
-    ]
-}
-```
-
-The task ID is the final portion of the URL:
-`8526b3191d103bb1ff90c65a655ad004`.
-
-Putting this all together I can SSH into the ECS container with a bash profile
-like so:
-
-```bash
-$ aws ecs execute-command \
-  --region us-east-2 \
-  --cluster rails-app-abc123 \
-  --container rails-app-abc123 \
-  --task 8526b3191d103bb1ff90c65a655ad004 \
-  --interactive \
-  --command "/bin/bash"
-```

aws/use-specific-aws-profile-with-cli.md

@@ -1,37 +0,0 @@
-# Use Specific AWS Profile With CLI
-
-I have multiple AWS profiles authenticated with the AWS CLI. For some projects
-I need to use the `default` one and for others I need to use the other.
-
-First, I can list the available profiles like so:
-
-```bash
-$ aws configure list-profiles
-default
-dev-my-app
-```
-
-For one-off commands I can specify the profile for any AWS CLI command using
-the `--profile` flag.
-
-```bash
-$ aws ecs list-clusters --profile josh-visualmode
-```
-
-However, I don't want to have to specify that flag every time when I'm working
-on a specific project. Instead I can specify the profile with an environment
-variable. The [`direnv`](https://direnv.net/) tool is a great way to do this on
-a per-project / per-directory basis.
-
-I can create or update the `.envrc` file (assuming I have `direnv` installed)
-adding the following line (and re-allowing the changed file):
-
-```
-# .envrc
-export AWS_PROFILE=dev-my-app
-```
-
-Now, any AWS command I issue from that directory or its subdirectories will use
-that profile by default.
-
-[source](https://docs.aws.amazon.com/cli/v1/userguide/cli-configure-files.html#cli-configure-files-using-profiles)

css/filter-blur-requires-expensive-calculation.md

@@ -1,29 +0,0 @@
-# Filter Blur Requires Expensive Calculation
-
-I had [a
-page](https://www.visualmode.dev/connect-to-production-rails-console-aws-flightcontrol)
-on my blog that was experiencing some odd rendering behavior. The issue was
-manifesting a couple ways.
-
-- Resizing and scrolling were janky and causing entire page layers to re-render
-causing the page to flash in and out.
-- Sometimes entire layer chunks would fail to paint leaving a white block
-missing from the page.
-
-The issue was occurring with and without JavaScript turned on for a
-statically-built page. I suspected that some aspect of the CSS was at fault.
-
-I was going back and forth with Dillon Hafer about what the issue could be and
-he wondered, "could it be the backdrop-blur class from tailwind?". I tried
-removing that class and the responsiveness of the page immediately improved.
-
-The [`filter:
-blur`](https://developer.mozilla.org/en-US/docs/Web/CSS/filter-function/blur)
-and [`backdrop-filter:
-blur`](https://developer.mozilla.org/en-US/docs/Web/CSS/backdrop-filter) both
-use an expensive [Gaussian blur](https://en.wikipedia.org/wiki/Gaussian_blur)
-calculation. One of these on a modern machine and browser probably won't have a
-noticable impact. However, a bunch of them, as in the case of my page with a
-recurring component, can have quite the performance hit.
-
-[source](https://github.com/tailwindlabs/tailwindcss/issues/15256)

rails/adjust-the-production-log-level.md

@@ -1,33 +0,0 @@
-# Adjust The Production Log Level
-
-A Rails app by default takes on the `debug` log level. This is great for
-development because it spits out a lot of information as you build and debug.
-
-That's going to typically be a bit too noisy for a production environment
-though. That is why Rails ships with the `config/environments/production.rb`
-file configured to the `info` log level.
-
-```ruby
-# config/environments/production.rb
-Rails.application.configure do
-
-  # ...
-
-  # "info" includes generic and useful information about system operation, but avoids logging too much
-  # information to avoid inadvertent exposure of personally identifiable information (PII). If you
-  # want to log everything, set the level to "debug".
-  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
-
-  # ...
-end
-```
-
-Sometimes, like when we're trying to track down some buggy behavior, we may
-want to switch Rails from one log level to another. That's why it is configured
-by the `RAILS_LOG_LEVEL` env var and otherwise falls back to `info`.
-
-To, for example, switch production over to the `debug` log level, we'd first
-change the `RAILS_LOG_LEVEL` env var to `debug`. Then we'd need to make sure
-our Rails app is restarted so that the config change is picked up. Heroku's
-`heroku config:set` will do that automatically. Depending on your setup, you
-may need to manually restart your web server (e.g. Puma).

rails/enforce-locals-passed-to-a-partial.md

@@ -1,42 +0,0 @@
-# Enforce Locals Passed To A Partial
-
-I have a big form partial (`_form.html.erb`) that is rendered by several
-different _new_ and _edit_ views. It's hard to tell at a glance, but the
-partial requires that `blogmark` and `cancel_path` are included as locals when
-it is rendered.
-
-As of [Rails 7.1](https://github.com/rails/rails/pull/45602), we now have a
-built-in way to enforce locals passed to a partial. We can add a magic comment
-at the top of the partial that specifies the locals:
-
-```ruby
-<%# locals: (blogmark:, cancel_path:) -%>
-<%= form_with(model: blogmark, local: true, class: "w-full max-w-3xl mb-8") do |form| %>
-  <% ... %>
-<% end  %>
-```
-
-This particular ERB magic comment declares that
-[`blogmark`](https://still.visualmode.dev/blogmarks) and `cancel_path` are
-required locals.
-
-So, what happens if I have a `new.html.erb` view that looks like this:
-
-```ruby
-<h1>New Blogmark</h1>
-
-<%= render 'blogmarks/form', blogmark: @blogmark %>
-```
-
-When I try to view the page, an error is raised:
-
-```
-Showing /Some/path/app/views/blogmarks/_form.html.erb where line # raised:
-
-missing local: :cancel_path for app/views/blogmarks/_form.html.erb
-```
-
-Updating the `render` statement to include a `cancel_path` local fixes the
-issue.
-
-[source](https://gorails.com/episodes/template-locals-in-rails-7-1)

unix/fix-previous-command-with-fc.md

@@ -1,26 +0,0 @@
-# Fix Previous Command With fc
-
-The `fc` command is a Bash and ZSH built-in command that allows you to interact
-with the history of commands issued in the shell. The most straightforward use
-case I know of for using this command is to fix or edit some aspect of the
-previous run command.
-
-When `fc` is executed with no arguments or flags, it will grab the latest entry
-to the command history and load it into your default editor. For me, that is
-Vim.
-
-I can make edits in that Vim session like I'd do in any other Vim session. When
-I write and quit (`:wq`) the file, the updated command will be executed. This
-is useful if, say, I've made a typo in the previous command and would prefer
-the ergonomics of my default editor to fix it. Or let's say I have a really
-long command with many flags and long file path arguments. It would be much
-easier and quicker to edit those paths from my editor than from the terminal
-prompt.
-
-If I've opened my editor (Vim) with `fc` and I decide I don't want to execute
-the command after all, I can _compiler quit_ Vim (exit with an error code)
-using `:cq`. The command will not be executed in this case.
-
-See `man zshbuiltins` for more details about this command and all of its flags.
-
-[source](https://www.computerhope.com/unix/uhistory.htm)

unix/list-the-pid-and-name-of-current-shell-process.md

@@ -1,27 +0,0 @@
-# List PID And Name Of Current Shell Process
-
-In Julia Evans' [How to add a directory to your
-PATH](https://jvns.ca/blog/2025/02/13/how-to-add-a-directory-to-your-path/),
-she shows off an odd-looking command for determining what shell (e.g. bash or
-zsh) you are currently running.
-
-```bash
-$ ps -p $$ -o pid=,comm=
-
-38105 -zsh
-```
-
-I already know I'm running `zsh`, but I thought this command was interesting
-enough to dig into and break down.
-
-- The `ps` command lists processes that "have controlling terminals"
-- The `$$` is a special shell variable representing the PID of the current process (try `echo $$`)
-- The `-p` flag allows you to specify a PID for `ps` to grab, in this case, the `$$` PID
-- The `-o` flag allows us to specify the output format, such as the PID and command name
-- The `=` after `pid` and `comm` tell `ps` to exclude headers from the output
-
-Additionally, I noticed that it output `-zsh` (not just `zsh`). That leading
-hyphen seems to indicate that [this `zsh` process is a _login
-shell_](https://unix.stackexchange.com/a/46856/5916). That means it was the
-process used to initiate an interactive shell session and something like the
-`.zprofile` would have been sourced as part of that.

zsh/create-and-jump-into-a-directory.md

@@ -1,64 +0,0 @@
-# Create And Jump Into A Directory
-
-[Oh My Zsh](https://github.com/ohmyzsh/ohmyzsh) defines a function `take` that
-we can use to both create and `cd` into a directory. If the directory already
-exists, it will simply `cd` into that directory.
-
-```bash
-~/code
-❯ take take-demo
-
-~/code/take-demo
-❯ mkdir already-exists
-
-~/code/take-demo
-❯ take already-exists
-
-~/code/take-demo/already-exists
-❯ cd ..
-
-~/code/take-demo
-❯ take one/two/three
-
-~/code/take-demo/one/two/three
-❯
-```
-
-First `take` creates and `cd`s into `take-demo`. Then `take` only `cd`s into
-`already-exists`. Then we see that `take` can create multiple levels of nested
-directories.
-
-With the help of `which` we can see how `take` is defined:
-
-```bash
-$ which take
-take () {
-        if [[ $1 =~ ^(https?|ftp).*\.tar\.(gz|bz2|xz)$ ]]
-        then
-                takeurl "$1"
-        elif [[ $1 =~ ^([A-Za-z0-9]\+@|https?|git|ssh|ftps?|rsync).*\.git/?$ ]]
-        then
-                takegit "$1"
-        else
-                takedir "$@"
-        fi
-}
-```
-
-We're not dealing with compressed files or git URLs, so we fall through to the
-`else` block with invokes `takedir`.
-
-```bash
-$ which takedir
-takedir () {
-        mkdir -p $@ && cd ${@:$#}
-}
-```
-
-The `mkdir -p $@` is what allows it make new, nested directories and then we
-`cd` to it. The `${@:$#}` is a way of [grabbing the last argument to the
-function](https://stackoverflow.com/a/37601842/535590). This suggests that you
-can pass multiple things to `take`, it will create all of them, and then `cd`
-you into the last one.
-
-[source](https://github.com/ohmyzsh/ohmyzsh/blob/master/lib/functions.zsh#L75-L85)