1. ~/.claude/CLAUDE.md – For instructions and context (equivalent to the claude.ai preferences in https://claude.ai/settings/general)

# My Coding Standards

- Test Driven Development: Specs first
- Focus on relevant specs (request, feature, complex methods)
- No trivial boilerplate specs
- Indentation: 2 spaces
- Lean, human-readable code
- When unclear: ask one clarifying question
...

2. ~/.claude/settings.json – For technical settings (permissions, tools, hooks)

{
  "permissions": {
    "allowedTools": ["Read", "Write", "Bash(bundle exec rspec *)"]
  }
}

The CLAUDE.md is loaded at every session start and is the right place for your coding preferences. The settings.json is more for tool permissions and hooks.

NOTE: The settings in https://claude.ai/settings/general are only for the web chat and do not take effect in Claude Code nor in API calls.

That’s it!

years = Array.new(11) { Time.now.year + _1 }

Hier wird Array.new(11) verwendet, um ein Array mit 11 Elementen zu erstellen (einschließlich des aktuellen Jahres), und der Block { Time.now.year + _1 } berechnet das Jahr für jedes Element (beginnend mit dem aktuellen Jahr). _1 ist ein Platzhalter für den Index des Blocks (ab 0).

For more, see:- https://rspec.info/features/3-13/rspec-core/configuration/profile/

Example:

$ bundle exec rspec ./path/to/my/test.rb:90

Top 10 slowest examples (54.21 seconds, 73.1% of total time):

  # displays list of examples here with benchmark

Finished in 1 minute 7.22 seconds

For example:

• return a 200 OK success status, taking 5 seconds: https://httpstat.us/200?sleep=5000
• return a 400 Bad Request: https://httpstat.us/400

E.g. We take this line of ruby:

booking.feedback_done ? I18n.t("billing.billing_public_tours.yes") : I18n.t("billing.billing_public_tours.no"),

calling #feedback_done should simply return a boolean value, so all looks okay right?

[2] pry(#<#<Class:0x0000000162290e60>>)> booking.feedback_done ? true : false
=> false

If we take a look at our YAML:

    billing_public_tours:
      ...
      yes: "Ja"
      no: "Nein"

Our translations look correctly configured. So why do we get this?

[1] pry(#<#<Class:0x0000000162290e60>>)> booking.feedback_done ? I18n.t("billing.billing_public_tours.yes") : I18n.t("billing.billing_public_tours.no")
=> "Translation missing: de.billing.billing_public_tours.no"

Because Booleans are formatted as English words in YAML

If we wrap them in quotes:

    billing_public_tours:
      ...
      "yes": "Ja"
      "no": "Nein"

Our code will now work:

[1] pry(#<#<Class:0x000000016dff30c0>>)> booking.feedback_done ? I18n.t("billing.billing_public_tours.yes") : I18n.t("billing.billing_public_tours.no")
=> "Nein"

git log --reverse --ancestry-path 894e8b4e93d8f3^..master

$ git log -L :initialize:app/lib/giant_money.rb -n5

commit e6ef7f8a3cf06af2ecbf8a528ad5cf312a8d03b1
Author: Alexander Presber <post@momolog.info>
Date:   Sun Aug 13 20:05:59 2023 +0200

    don't fail hard (yet) on GiantMoney[nil] [GOM-8932]

diff --git a/app/lib/giant_money.rb b/app/lib/giant_money.rb
--- a/app/lib/giant_money.rb
+++ b/app/lib/giant_money.rb
@@ -16,12 +16,16 @@
   def initialize value, allow_nil: false
-    raise "GiantMoney.new: value cannot be nil." unless value || allow_nil
+
+    unless value || allow_nil
+      # raise "GiantMoney.new: value cannot be nil." # don't fail hard (yet) on GiantMoney[nil]
+      Rollbar.error("GiantMoney.new: value cannot be nil in #{caller[2]}.", stack: caller)
+    end

     @amount = case value
       when nil      then nil
       when Money    then value
       when Integer  then Money.new(value)
       when Float    then Money.new((value * 100.0))
       else raise 'GiantMoney.new: value needs to be an Integer, Float or Money object.'
     end
   end


commit f55678a8c33029b1e998e1e0b6d536afd2f77107
Author: Lion Vollnhals <lion@giantmonkey.de>
Date:   Fri Jun 9 12:58:05 2023 +0000

    giant_monkey: multiple float by float

diff --git a/app/lib/giant_money.rb b/app/lib/giant_money.rb
--- a/app/lib/giant_money.rb
+++ b/app/lib/giant_money.rb
@@ -16,12 +16,12 @@
   def initialize value, allow_nil: false
...

Noice.

### usage:
#### reset and seed database
# rake db:reset 
#### get korona base data
# rails runner 'Korona.synchronize_all!'
#### create valid day tickets in local development
# rails runner rails-runner/create_valid_ticket_for_shop_tests.rb

It is supposed to document the usage and gives executable example lines. However to use them verbatim you have to copy-paste them line by line, removing the leading #.

There is a better alternative using the mostly frowned upon=begin / =end comment style:

=begin usage:
rake db:reset                                                   # reset and seed database
rails runner 'Korona.synchronize_all!'                          # get korona base data
rails runner rails-runner/create_valid_ticket_for_shop_tests.rb # create valid day tickets in local development
=end

Now it is possible to copy-paste the whole block into a shell to execute.

While arguably being pretty confusing, this actually has a good reason.

A nice cheat sheet is here.

E.g.

[mariadb]
log-bin                         # enable binary logging

and

[mariadb]
log_bin                         # enable binary logging

are both ok!

For googling and searching inside pages the _ variant usually works better.

Wait for some text to eventually be there:

expect(page).to have_content('some text')

Succeeds as soon as the text is there and can be very fast.

Wait for some text to be - and stay - there:

expect(page).not_to have_no_content('some text')

Succeeds if the text stays there for the whole default_max_wait_time and is therefore always slow. But sometimes needed.

Wait for some text to eventually disappear:

expect(page).to have_no_content('some text')

Succeeds as soon as this text is not there and can be very fast.

Wait for some text to be - and stay - absent:

expect(page).not_to have_content('some text')

Succeeds if the text stays absent for the whole default_max_wait_time and is therefore always slow. But sometimes needed.

• use open ~/Library/Application\ Support/io.puma.dev/ in terminal to show your local puma-dev certs folder
• enter about:preferences#privacy into firefox url-bar
• all the way at the bottom you’ll find Certificates
• click on View Certificates
• in the last Authorities tab, you can import the Puma-dev certificate you’ve revealed in first step
• you only need to accept this for websites …

from now on, firefox will without any disturbance open local https:// puma-dev websites.

rails console --sandbox

Straight from the docs.

It’s not a good idea to use this in production, though.

--pcre2

Then we can search for all occurences of mywordnot followed by _:

> rg 'myword(?!_)'

DELETE FROM
          my_table delete
    USING my_table check
  WHERE
        delete.id < check.id
    AND delete.col1 = check.col1
    AND delete.col2 = check.col2

Fortunately it’s possible to change this behaviour by editing the WORDCHARS env variable.

Source: https://github.com/ohmyzsh/ohmyzsh/issues/5108#issuecomment-233480020

Well, git rebase --interactive --root masterdoes the trick.

Thanks to https://troglobit.com/howto/rebase-without-an-origin/

https://gitlab.giantmonkey.de/docker/gitlab-runner/-/merge_requests/20