Remove HOMEBREW_BOTTLE_DOMAIN

It no longer works under GitHub Packages and `HOMEBREW_ARTIFACT_DOMAIN`
must be used instead.

Library/Homebrew/env_config.rb

@@ -38,18 +38,6 @@ module Homebrew
                      "A no-op when using Homebrew's vendored, relocatable Ruby on macOS (as it doesn't work).",
         boolean:     true,
       },
-      HOMEBREW_BOTTLE_DOMAIN:                 {
-        description:  "Use this URL as the download mirror for bottles. " \
-                      "If bottles at that URL are temporarily unavailable, " \
-                      "the default bottle domain will be used as a fallback mirror. " \
-                      "For example, `HOMEBREW_BOTTLE_DOMAIN=http://localhost:8080` will cause all bottles to " \
-                      "download from the prefix `http://localhost:8080/`. " \
-                      "If bottles are not available at `HOMEBREW_BOTTLE_DOMAIN` " \
-                      "they will be downloaded from the default bottle domain.",
-        default_text: "macOS: `https://ghcr.io/v2/homebrew/core`, " \
-                      "Linux: `https://ghcr.io/v2/linuxbrew/core`.",
-        default:      HOMEBREW_BOTTLE_DEFAULT_DOMAIN,
-      },
       HOMEBREW_BREW_GIT_REMOTE:               {
         description: "Use this URL as the Homebrew/brew `git`(1) remote.",
         default:     HOMEBREW_BREW_DEFAULT_GIT_REMOTE,

Library/Homebrew/software_spec.rb

@@ -297,7 +297,7 @@ class Bottle
   attr_reader :name, :resource, :prefix, :cellar, :rebuild
 
   def_delegators :resource, :url, :verify_download_integrity
-  def_delegators :resource, :cached_download
+  def_delegators :resource, :cached_download, :fetch
 
   def initialize(formula, spec, tag = nil)
     @name = formula.name
@@ -324,15 +324,6 @@ class Bottle
     root_url(spec.root_url, spec.root_url_specs)
   end
 
-  def fetch(verify_download_integrity: true)
-    @resource.fetch(verify_download_integrity: verify_download_integrity)
-  rescue DownloadError
-    raise unless fallback_on_error
-
-    fetch_tab
-    retry
-  end
-
   def clear_cache
     @resource.clear_cache
     github_packages_manifest_resource&.clear_cache
@@ -436,19 +427,6 @@ class Bottle
     specs
   end
 
-  def fallback_on_error
-    # Use the default bottle domain as a fallback mirror
-    if @resource.url.start_with?(Homebrew::EnvConfig.bottle_domain) &&
-       Homebrew::EnvConfig.bottle_domain != HOMEBREW_BOTTLE_DEFAULT_DOMAIN
-      opoo "Bottle missing, falling back to the default domain..."
-      root_url(HOMEBREW_BOTTLE_DEFAULT_DOMAIN)
-      @github_packages_manifest_resource = nil
-      true
-    else
-      false
-    end
-  end
-
   def root_url(val = nil, specs = {})
     return @root_url if val.nil?
 
@@ -479,11 +457,7 @@ class BottleSpecification
 
   def root_url(var = nil, specs = {})
     if var.nil?
-      @root_url ||= if (github_packages_url = GitHubPackages.root_url_if_match(Homebrew::EnvConfig.bottle_domain))
-        github_packages_url
-      else
-        Homebrew::EnvConfig.bottle_domain
-      end
+      @root_url ||= HOMEBREW_BOTTLE_DEFAULT_DOMAIN
     else
       @root_url = if (github_packages_url = GitHubPackages.root_url_if_match(var))
         github_packages_url

Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi

@@ -8331,8 +8331,6 @@ module Homebrew::EnvConfig
 
   def self.bootsnap?(); end
 
-  def self.bottle_domain(); end
-
   def self.brew_git_remote(); end
 
   def self.browser(); end

docs/Manpage.md

@@ -1878,11 +1878,6 @@ example, run `export HOMEBREW_NO_INSECURE_REDIRECT=1` rather than just
 - `HOMEBREW_BOOTSNAP`
   <br>If set, use Bootsnap to speed up repeated `brew` calls. A no-op when using Homebrew's vendored, relocatable Ruby on macOS (as it doesn't work).
 
-- `HOMEBREW_BOTTLE_DOMAIN`
-  <br>Use this URL as the download mirror for bottles. If bottles at that URL are temporarily unavailable, the default bottle domain will be used as a fallback mirror. For example, `HOMEBREW_BOTTLE_DOMAIN=http://localhost:8080` will cause all bottles to download from the prefix `http://localhost:8080/`. If bottles are not available at `HOMEBREW_BOTTLE_DOMAIN` they will be downloaded from the default bottle domain.
-
-  *Default:* macOS: `https://ghcr.io/v2/homebrew/core`, Linux: `https://ghcr.io/v2/linuxbrew/core`.
-
 - `HOMEBREW_BREW_GIT_REMOTE`
   <br>Use this URL as the Homebrew/brew `git`(1) remote.
 

manpages/brew.1

@@ -2644,15 +2644,6 @@ Use this as the \fBbat\fR configuration file\.
 If set, use Bootsnap to speed up repeated \fBbrew\fR calls\. A no\-op when using Homebrew\'s vendored, relocatable Ruby on macOS (as it doesn\'t work)\.
 .
 .TP
-\fBHOMEBREW_BOTTLE_DOMAIN\fR
-.
-.br
-Use this URL as the download mirror for bottles\. If bottles at that URL are temporarily unavailable, the default bottle domain will be used as a fallback mirror\. For example, \fBHOMEBREW_BOTTLE_DOMAIN=http://localhost:8080\fR will cause all bottles to download from the prefix \fBhttp://localhost:8080/\fR\. If bottles are not available at \fBHOMEBREW_BOTTLE_DOMAIN\fR they will be downloaded from the default bottle domain\.
-.
-.IP
-\fIDefault:\fR macOS: \fBhttps://ghcr\.io/v2/homebrew/core\fR, Linux: \fBhttps://ghcr\.io/v2/linuxbrew/core\fR\.
-.
-.TP
 \fBHOMEBREW_BREW_GIT_REMOTE\fR
 .
 .br