From 5108254e9f3e7979bcb81309e807232d3d8f4766 Mon Sep 17 00:00:00 2001
From: Roland Walker <walker@pobox.com>
Date: Thu, 18 Dec 2014 21:14:41 -0500
Subject: [PATCH] strip various exception classes from homebrew-fork

---
 .../Library/Homebrew/exceptions.rb            | 215 +-----------------
 .../Library/Homebrew/extend/ARGV.rb           |   8 +-
 .../Library/Homebrew/extend/ENV/shared.rb     |   2 +-
 .../Library/Homebrew/resource.rb              |   2 +-
 4 files changed, 9 insertions(+), 218 deletions(-)

diff --git a/lib/homebrew-fork/Library/Homebrew/exceptions.rb b/lib/homebrew-fork/Library/Homebrew/exceptions.rb
index 78a9ea0cbb6..9d09b8b860e 100644
--- a/lib/homebrew-fork/Library/Homebrew/exceptions.rb
+++ b/lib/homebrew-fork/Library/Homebrew/exceptions.rb
@@ -1,203 +1,3 @@
-class UsageError < RuntimeError; end
-class FormulaUnspecifiedError < UsageError; end
-class KegUnspecifiedError < UsageError; end
-
-class MultipleVersionsInstalledError < RuntimeError
-  attr_reader :name
-
-  def initialize name
-    @name = name
-    super "#{name} has multiple installed versions"
-  end
-end
-
-class NotAKegError < RuntimeError; end
-
-class NoSuchKegError < RuntimeError
-  attr_reader :name
-
-  def initialize name
-    @name = name
-    super "No such keg: #{HOMEBREW_CELLAR}/#{name}"
-  end
-end
-
-class FormulaValidationError < StandardError
-  attr_reader :attr
-
-  def initialize(attr, value)
-    @attr = attr
-    msg = "invalid attribute: #{attr}"
-    msg << " (#{value.inspect})" unless value.empty?
-    super msg
-  end
-end
-
-class FormulaSpecificationError < StandardError; end
-
-class FormulaUnavailableError < RuntimeError
-  attr_reader :name
-
-  def initialize name
-    @name = name
-  end
-
-  def to_s
-    "No available formula for #{name}"
-  end
-end
-
-class TapFormulaUnavailableError < FormulaUnavailableError
-  attr_reader :user, :repo, :shortname
-
-  def initialize name
-    super
-    @user, @repo, @shortname = name.split("/", 3)
-  end
-
-  def to_s; <<-EOS.undent
-      No available formula for #{shortname}
-      Please tap it and then try again: brew tap #{user}/#{repo}
-    EOS
-  end
-end
-
-class OperationInProgressError < RuntimeError
-  def initialize name
-    message = <<-EOS.undent
-      Operation already in progress for #{name}
-      Another active Homebrew process is already using #{name}.
-      Please wait for it to finish or terminate it to continue.
-      EOS
-
-    super message
-  end
-end
-
-class CannotInstallFormulaError < RuntimeError; end
-
-class FormulaAlreadyInstalledError < RuntimeError; end
-
-class FormulaInstallationAlreadyAttemptedError < RuntimeError
-  def initialize(formula)
-    super "Formula installation already attempted: #{formula.name}"
-  end
-end
-
-class FormulaConflictError < RuntimeError
-  attr_reader :formula, :conflicts
-
-  def initialize(formula, conflicts)
-    @formula = formula
-    @conflicts = conflicts
-    super message
-  end
-
-  def conflict_message(conflict)
-    message = []
-    message << "  #{conflict.name}"
-    message << ": because #{conflict.reason}" if conflict.reason
-    message.join
-  end
-
-  def message
-    message = []
-    message << "Cannot install #{formula.name} because conflicting formulae are installed.\n"
-    message.concat conflicts.map { |c| conflict_message(c) } << ""
-    message << <<-EOS.undent
-      Please `brew unlink #{conflicts.map(&:name)*' '}` before continuing.
-
-      Unlinking removes a formula's symlinks from #{HOMEBREW_PREFIX}. You can
-      link the formula again after the install finishes. You can --force this
-      install, but the build may fail or cause obscure side-effects in the
-      resulting software.
-      EOS
-    message.join("\n")
-  end
-end
-
-class BuildError < RuntimeError
-  attr_reader :formula, :env
-
-  def initialize(formula, cmd, args, env)
-    @formula = formula
-    @env = env
-    args = args.map{ |arg| arg.to_s.gsub " ", "\\ " }.join(" ")
-    super "Failed executing: #{cmd} #{args}"
-  end
-
-  def issues
-    @issues ||= fetch_issues
-  end
-
-  def fetch_issues
-    GitHub.issues_for_formula(formula.name)
-  rescue GitHub::RateLimitExceededError => e
-    opoo e.message
-    []
-  end
-
-  def dump
-    if not ARGV.verbose?
-      puts
-      puts "#{Tty.red}READ THIS#{Tty.reset}: #{Tty.em}#{OS::ISSUES_URL}#{Tty.reset}"
-      if formula.tap?
-        puts "If reporting this issue please do so at (not Homebrew/homebrew):"
-        puts "  https://github.com/#{formula.tap}/issues"
-      end
-    else
-      require 'cmd/config'
-      require 'cmd/--env'
-
-      unless formula.core_formula?
-        ohai "Formula"
-        puts "Tap: #{formula.tap}"
-        puts "Path: #{formula.path}"
-      end
-      ohai "Configuration"
-      Homebrew.dump_build_config
-      ohai "ENV"
-      Homebrew.dump_build_env(env)
-      puts
-      onoe "#{formula.name} #{formula.version} did not build"
-      unless (logs = Dir["#{HOMEBREW_LOGS}/#{formula.name}/*"]).empty?
-        puts "Logs:"
-        puts logs.map{|fn| "     #{fn}"}.join("\n")
-      end
-    end
-    puts
-    unless RUBY_VERSION < "1.8.7" || issues.empty?
-      puts "These open issues may also help:"
-      puts issues.map{ |i| "#{i['title']} (#{i['html_url']})" }.join("\n")
-    end
-  end
-end
-
-# raised by CompilerSelector if the formula fails with all of
-# the compilers available on the user's system
-class CompilerSelectionError < RuntimeError
-  def initialize(formula)
-    super <<-EOS.undent
-      #{formula.name} cannot be built with any available compilers.
-      To install this formula, you may need to:
-        brew install gcc
-      EOS
-  end
-end
-
-# Raised in Resource.fetch
-class DownloadError < RuntimeError
-  def initialize(resource, e)
-    super <<-EOS.undent
-      Failed to download resource #{resource.download_name.inspect}
-      #{e.message}
-      EOS
-  end
-end
-
-# raised in CurlDownloadStrategy.fetch
-class CurlDownloadStrategyError < RuntimeError; end
-
 # raised by safe_system in utils.rb
 class ErrorDuringExecution < RuntimeError
   def initialize(cmd, args=[])
@@ -206,6 +6,9 @@ class ErrorDuringExecution < RuntimeError
   end
 end
 
+# raised in CurlDownloadStrategy.fetch
+class CurlDownloadStrategyError < RuntimeError; end
+
 # raised by Pathname#verify_checksum when "expected" is nil or empty
 class ChecksumMissingError < ArgumentError; end
 
@@ -226,15 +29,3 @@ class ChecksumMismatchError < RuntimeError
       EOS
   end
 end
-
-class ResourceMissingError < ArgumentError
-  def initialize(formula, resource)
-    super "#{formula.name} does not define resource #{resource.inspect}"
-  end
-end
-
-class DuplicateResourceError < ArgumentError
-  def initialize(resource)
-    super "Resource #{resource.inspect} is defined more than once"
-  end
-end
diff --git a/lib/homebrew-fork/Library/Homebrew/extend/ARGV.rb b/lib/homebrew-fork/Library/Homebrew/extend/ARGV.rb
index 7296bf2ba6c..c618ad4815b 100644
--- a/lib/homebrew-fork/Library/Homebrew/extend/ARGV.rb
+++ b/lib/homebrew-fork/Library/Homebrew/extend/ARGV.rb
@@ -24,7 +24,7 @@ module HomebrewArgvExtension
       rack = HOMEBREW_CELLAR/canonical_name
       dirs = rack.directory? ? rack.subdirs : []
 
-      raise NoSuchKegError.new(canonical_name) if dirs.empty?
+      raise RuntimeError.new(canonical_name) if dirs.empty?
 
       linked_keg_ref = HOMEBREW_LIBRARY.join("LinkedKegs", canonical_name)
       opt_prefix = HOMEBREW_PREFIX.join("opt", canonical_name)
@@ -39,9 +39,9 @@ module HomebrewArgvExtension
         elsif (prefix = Formulary.factory(canonical_name).prefix).directory?
           Keg.new(prefix)
         else
-          raise MultipleVersionsInstalledError.new(canonical_name)
+          raise RuntimeError.new(canonical_name)
         end
-      rescue FormulaUnavailableError
+      rescue RuntimeError
         raise <<-EOS.undent
           Multiple kegs installed to #{rack}
           However we don't know which one you refer to.
@@ -56,7 +56,7 @@ module HomebrewArgvExtension
     @n=index arg
   end
   def next
-    at @n+1 or raise UsageError
+    at @n+1 or raise RuntimeError
   end
 
   def value arg
diff --git a/lib/homebrew-fork/Library/Homebrew/extend/ENV/shared.rb b/lib/homebrew-fork/Library/Homebrew/extend/ENV/shared.rb
index 85a2c9a40ff..640f80b6fa0 100644
--- a/lib/homebrew-fork/Library/Homebrew/extend/ENV/shared.rb
+++ b/lib/homebrew-fork/Library/Homebrew/extend/ENV/shared.rb
@@ -158,7 +158,7 @@ module SharedEnvExtension
           brew install #{gcc_name}
         EOS
       end
-    rescue FormulaUnavailableError
+    rescue RuntimeError
       raise <<-EOS.undent
       Homebrew GCC requested, but formula #{gcc_name} not found!
       You may need to: brew tap homebrew/versions
diff --git a/lib/homebrew-fork/Library/Homebrew/resource.rb b/lib/homebrew-fork/Library/Homebrew/resource.rb
index 97dcdf97643..b671758ba97 100644
--- a/lib/homebrew-fork/Library/Homebrew/resource.rb
+++ b/lib/homebrew-fork/Library/Homebrew/resource.rb
@@ -83,7 +83,7 @@ class Resource
     HOMEBREW_CACHE.mkpath
     downloader.fetch
   rescue ErrorDuringExecution, CurlDownloadStrategyError => e
-    raise DownloadError.new(self, e)
+    raise RuntimeError.new
   else
     cached_download
   end