dev-cmd/edit: suggest tapping core repositories if untapped

Library/Homebrew/cask/cask_loader.rb

@@ -244,7 +244,7 @@ def self.can_load?(ref)
 
       def initialize(token, from_json: nil)
         @token = token.sub(%r{^homebrew/(?:homebrew-)?cask/}i, "")
-        @path = CaskLoader.default_path(token)
+        @path = CaskLoader.default_path(@token)
         @from_json = from_json
       end
 

Library/Homebrew/cli/named_args.rb

@@ -228,8 +228,9 @@ def to_resolved_formulae_to_casks(only: parent&.only_formula_or_cask)
       def to_paths(only: parent&.only_formula_or_cask, recurse_tap: false)
         @to_paths ||= {}
         @to_paths[only] ||= downcased_unique_named.flat_map do |name|
+          path = Pathname(name)
           if File.exist?(name)
-            Pathname(name)
+            path
           elsif name.count("/") == 1 && !name.start_with?("./", "/")
             tap = Tap.fetch(name)
 
@@ -248,10 +249,16 @@ def to_paths(only: parent&.only_formula_or_cask, recurse_tap: false)
 
             paths = []
 
-            paths << formula_path if formula_path.exist?
-            paths << cask_path if cask_path.exist?
+            if formula_path.exist? ||
+               (!CoreTap.instance.installed? && Homebrew::API::Formula.all_formulae.key?(path.basename))
+              paths << formula_path
+            end
+            if cask_path.exist? ||
+               (!CoreCaskTap.instance.installed? && Homebrew::API::Cask.all_casks.key?(path.basename))
+              paths << cask_path
+            end
 
-            paths.empty? ? Pathname(name) : paths
+            paths.empty? ? path : paths
           end
         end.uniq.freeze
       end

Library/Homebrew/dev-cmd/edit.rb

@@ -11,8 +11,8 @@ module Homebrew
   def edit_args
     Homebrew::CLI::Parser.new do
       description <<~EOS
-        Open a <formula> or <cask> in the editor set by `EDITOR` or `HOMEBREW_EDITOR`,
-        or open the Homebrew repository for editing if no formula is provided.
+        Open a <formula>, <cask> or <tap> in the editor set by `EDITOR` or `HOMEBREW_EDITOR`,
+        or open the Homebrew repository for editing if no argument is provided.
       EOS
 
       switch "--formula", "--formulae",
@@ -24,7 +24,7 @@ def edit_args
 
       conflicts "--formula", "--cask"
 
-      named_args [:formula, :cask], without_api: true
+      named_args [:formula, :cask, :tap], without_api: true
     end
   end
 
@@ -50,42 +50,56 @@ def edit
         [HOMEBREW_REPOSITORY]
       end
     else
+      edit_api_message_displayed = T.let(false, T::Boolean)
       args.named.to_paths.select do |path|
-        next path if path.exist?
+        core_formula_path = path.fnmatch?("**/homebrew-core/Formula/**.rb", File::FNM_DOTMATCH)
+        core_cask_path = path.fnmatch?("**/homebrew-cask/Casks/**.rb", File::FNM_DOTMATCH)
+        core_formula_tap = path == CoreTap.instance.path
+        core_cask_tap = path == CoreCaskTap.instance.path
 
-        not_exist_message = if args.cask?
-          "#{path.basename(".rb")} doesn't exist on disk."
-        else
-          "#{path} doesn't exist on disk."
+        if path.exist?
+          if (core_formula_path || core_cask_path || core_formula_tap || core_cask_tap) &&
+             !edit_api_message_displayed &&
+             !Homebrew::EnvConfig.no_install_from_api? &&
+             !Homebrew::EnvConfig.no_env_hints?
+            opoo <<~EOS
+              Unless `HOMEBREW_NO_INSTALL_FROM_API` is set when running `brew install`,
+              it will ignore any locally edited #{(core_cask_path || core_cask_tap) ? "casks" : "formulae"}.
+            EOS
+            edit_api_message_displayed = true
+          end
+          next path
         end
 
-        message = if args.cask?
-          <<~EOS
-            #{not_exist_message}
-            Run #{Formatter.identifier("brew create --cask --set-name #{path.basename(".rb")} $URL")} \
-            to create a new cask!
-          EOS
+        name = path.basename(".rb").to_s
+
+        if (tap_match = Regexp.new(HOMEBREW_TAP_DIR_REGEX.source + /$/.source).match(path.to_s))
+          raise TapUnavailableError, CoreTap.instance.name if core_formula_tap
+          raise TapUnavailableError, CoreCaskTap.instance.name if core_cask_tap
+
+          raise TapUnavailableError, "#{tap_match[:user]}/#{tap_match[:repo]}"
+        elsif args.cask? || core_cask_path
+          if !CoreCaskTap.instance.installed? && Homebrew::API::Cask.all_casks.key?(name)
+            command = "brew tap --force #{CoreCaskTap.instance.name}"
+            action = "tap #{CoreCaskTap.instance.name}"
+          else
+            command = "brew create --cask --set-name #{name} $URL"
+            action = "create a new cask"
+          end
+        elsif core_formula_path && !CoreTap.instance.installed? && Homebrew::API::Formula.all_formulae.key?(name)
+          command = "brew tap --force #{CoreTap.instance.name}"
+          action = "tap #{CoreTap.instance.name}"
         else
-          <<~EOS
-            #{not_exist_message}
-            Run #{Formatter.identifier("brew create --set-name #{path.basename} $URL")} \
-            to create a new formula!
-          EOS
+          command = "brew create --set-name #{name} $URL"
+          action = "create a new formula"
         end
-        raise UsageError, message
-      end.presence
-    end
-
-    if !Homebrew::EnvConfig.no_install_from_api? && !Homebrew::EnvConfig.no_env_hints?
-      paths.each do |path|
-        next if !path.fnmatch?("**/homebrew-core/Formula/*.rb") && !path.fnmatch?("**/homebrew-cask/Casks/*.rb")
 
-        opoo <<~EOS
-          Unless `HOMEBREW_NO_INSTALL_FROM_API` is set when running
-          `brew install`, it will ignore your locally edited formula.
+        message = <<~EOS
+          #{name} doesn't exist on disk.
+          Run #{Formatter.identifier(command)} to #{action}!
         EOS
-        break
-      end
+        raise UsageError, message
+      end.presence
     end
 
     if args.print_path?

Library/Homebrew/exceptions.rb

@@ -304,9 +304,19 @@ class TapUnavailableError < RuntimeError
   def initialize(name)
     @name = name
 
-    super <<~EOS
-      No available tap #{name}.
-    EOS
+    message = "No available tap #{name}.\n"
+    if [CoreTap.instance.name, CoreCaskTap.instance.name].include?(name)
+      command = "brew tap --force #{name}"
+      message += <<~EOS
+        Run #{Formatter.identifier(command)} to tap #{name}!
+      EOS
+    else
+      command = "brew tap-new #{name}"
+      message += <<~EOS
+        Run #{Formatter.identifier(command)} to create a new #{name} tap!
+      EOS
+    end
+    super message.freeze
   end
 end
 

Library/Homebrew/formulary.rb

@@ -1004,7 +1004,8 @@ def self.tap_paths(name, taps = Tap)
   end
 
   def self.find_formula_in_tap(name, tap)
-    filename = "#{name}.rb"
+    filename = name.dup
+    filename << ".rb" unless filename.end_with?(".rb")
 
     Tap.formula_files_by_name(tap).fetch(filename, tap.formula_dir/filename)
   end

Library/Homebrew/test/exceptions_spec.rb

@@ -131,7 +131,7 @@ class Baz < Formula; end
   describe TapUnavailableError do
     subject { described_class.new("foo") }
 
-    its(:to_s) { is_expected.to eq("No available tap foo.\n") }
+    its(:to_s) { is_expected.to eq("No available tap foo.\nRun brew tap-new foo to create a new foo tap!\n") }
   end
 
   describe TapAlreadyTappedError do

completions/bash/brew

@@ -927,6 +927,7 @@ _brew_edit() {
   esac
   __brew_complete_formulae
   __brew_complete_casks
+  __brew_complete_tapped
 }
 
 _brew_environment() {

completions/fish/brew.fish

@@ -670,7 +670,7 @@ __fish_brew_complete_arg 'dr' -l verbose -d 'Make some output more verbose'
 __fish_brew_complete_arg 'dr' -a '(__fish_brew_suggest_diagnostic_checks)'
 
 
-__fish_brew_complete_cmd 'edit' 'Open a formula or cask in the editor set by `EDITOR` or `HOMEBREW_EDITOR`, or open the Homebrew repository for editing if no formula is provided'
+__fish_brew_complete_cmd 'edit' 'Open a formula, cask or tap in the editor set by `EDITOR` or `HOMEBREW_EDITOR`, or open the Homebrew repository for editing if no argument is provided'
 __fish_brew_complete_arg 'edit' -l cask -d 'Treat all named arguments as casks'
 __fish_brew_complete_arg 'edit' -l debug -d 'Display any debugging information'
 __fish_brew_complete_arg 'edit' -l formula -d 'Treat all named arguments as formulae'
@@ -680,6 +680,7 @@ __fish_brew_complete_arg 'edit' -l quiet -d 'Make some output more quiet'
 __fish_brew_complete_arg 'edit' -l verbose -d 'Make some output more verbose'
 __fish_brew_complete_arg 'edit; and not __fish_seen_argument -l cask -l casks' -a '(__fish_brew_suggest_formulae_all)'
 __fish_brew_complete_arg 'edit; and not __fish_seen_argument -l formula -l formulae' -a '(__fish_brew_suggest_casks_all)'
+__fish_brew_complete_arg 'edit' -a '(__fish_brew_suggest_taps_installed)'
 
 
 __fish_brew_complete_cmd 'environment' 'Summarise Homebrew\'s build environment as a plain list'

completions/zsh/_brew

@@ -164,7 +164,7 @@ __brew_internal_commands() {
     'dispatch-build-bottle:Build bottles for these formulae with GitHub Actions'
     'docs:Open Homebrew'\''s online documentation (https://docs.brew.sh) in a browser'
     'doctor:Check your system for potential problems'
-    'edit:Open a formula or cask in the editor set by `EDITOR` or `HOMEBREW_EDITOR`, or open the Homebrew repository for editing if no formula is provided'
+    'edit:Open a formula, cask or tap in the editor set by `EDITOR` or `HOMEBREW_EDITOR`, or open the Homebrew repository for editing if no argument is provided'
     'extract:Look through repository history to find the most recent version of formula and create a copy in tap'
     'fetch:Download a bottle (if available) or source packages for formulae and binaries for casks'
     'formula:Display the path where formula is located'
@@ -853,7 +853,9 @@ _brew_edit() {
     '*::formula:__brew_formulae' \
     - cask \
     '(--formula)--cask[Treat all named arguments as casks]' \
-    '*::cask:__brew_casks'
+    '*::cask:__brew_casks' \
+    - tap \
+    '*::tap:__brew_any_tap'
 }
 
 # brew environment

docs/Manpage.md

@@ -1240,10 +1240,10 @@ Build bottles for these formulae with GitHub Actions.
 * `--linux-wheezy`:
   Use Debian Wheezy container for building the bottle on Linux.
 
-### `edit` [*`options`*] [*`formula`*|*`cask`* ...]
+### `edit` [*`options`*] [*`formula`*|*`cask`*|*`tap`* ...]
 
-Open a *`formula`* or *`cask`* in the editor set by `EDITOR` or `HOMEBREW_EDITOR`,
-or open the Homebrew repository for editing if no formula is provided.
+Open a *`formula`*, *`cask`* or *`tap`* in the editor set by `EDITOR` or `HOMEBREW_EDITOR`,
+or open the Homebrew repository for editing if no argument is provided.
 
 * `--formula`:
   Treat all named arguments as formulae.

manpages/brew.1

@@ -1804,8 +1804,8 @@ Dispatch bottle for Linux (using self\-hosted runner)\.
 \fB\-\-linux\-wheezy\fR
 Use Debian Wheezy container for building the bottle on Linux\.
 .
-.SS "\fBedit\fR [\fIoptions\fR] [\fIformula\fR|\fIcask\fR \.\.\.]"
-Open a \fIformula\fR or \fIcask\fR in the editor set by \fBEDITOR\fR or \fBHOMEBREW_EDITOR\fR, or open the Homebrew repository for editing if no formula is provided\.
+.SS "\fBedit\fR [\fIoptions\fR] [\fIformula\fR|\fIcask\fR|\fItap\fR \.\.\.]"
+Open a \fIformula\fR, \fIcask\fR or \fItap\fR in the editor set by \fBEDITOR\fR or \fBHOMEBREW_EDITOR\fR, or open the Homebrew repository for editing if no argument is provided\.
 .
 .TP
 \fB\-\-formula\fR