Add numbers to all Errorfs

[Reasonable-Solutions]

I did it over all fmt.Errorfs instead of finding the useful ones 🙃

[mortenlj]

Hva er mekanismen for å velge en feilkode? Regner med at det ikke er 9776 forskjellige feil i naiserator, så da er det ikke en ren teller ...

Kanskje dokumentere hvordan man velger seg en ny feilkode i README?

[jhrv]

Og kanskje også bli enige om hvordan en sånn her feilkode-mekanisme skal virke, og om man skal ha det

[Reasonable-Solutions]

Hva er mekanismen for å velge en feilkode?

Random uniform sampling on the intervall 0-9999.
I did something like this:

find . -type f -name "*.go" | while IFS= read -r file; do
  awk '{gsub(/fmt\.Errorf\("/, sprintf("fmt.Errorf(\"NAISERATOR-%04d: ", int(rand()*10000)))}1' "$file" > temp && mv temp "$file"
done

Paraphrasing from another project where we did this:

"
Codes should not be organised based on the type of error (like using one set of numbers for type errors, another for parser errors, etc.). This is for several reasons: codes might be used in different parts of the tool over time, but their meaning stays the same (so the internal workings of the tool shouldn’t determine the codes). Also, one group might run out of codes, and grouping similar messages by code might make it harder to choose the right one from a list.

Codes also shouldn’t be assigned in order based on the tool’s source code, because this could suggest a misleading pattern, and sequential numbers aren’t visually distinct enough.

For tools that have development branches that last a long time, there should be a way to prevent code conflicts between branches. This helps avoid accidentally using the same code twice and reduces the chance of merge conflicts when combining code from different branches.
"

If you're feeling fancy, I use the following for outputting new NNNN numbers as I code:

  (defun carl-insert-error-number (&optional reroll)
  "Generate a random number in the format NNNN with zero padding.
Insert the number at the current cursor position.
If called with a prefix argument (C-u), it will search the project
for the generated number and reroll if the number is found."
  (interactive "P")
  (let (random-number)
    (catch 'reroll
      (while t
        (setq random-number (format "%04d" (random 10000)))
        (if (and reroll
                 (let ((default-directory (project-root (project-current t))))
                   (not (string-empty-p (shell-command-to-string
                                         (format "git grep -n %s" random-number))))))
          (throw 'reroll random-number))))
    (insert random-number)

[Reasonable-Solutions]

Kanskje dokumentere hvordan man velger seg en ny feilkode i README?

Definitively.