doctor: move code away from cmd/

Closes Homebrew/homebrew#47665.

Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>

Library/Homebrew/cmd/install.rb

@@ -1,5 +1,5 @@
 require "blacklist"
-require "cmd/doctor"
+require "diagnostic"
 require "cmd/search"
 require "formula_installer"
 require "tap"
@@ -159,7 +159,7 @@ module Homebrew
   end
 
   def check_xcode
-    checks = Checks.new
+    checks = Diagnostic::Checks.new
     %w[
       check_for_unsupported_osx
       check_for_bad_install_name_tool

Library/Homebrew/cmd/missing.rb

@@ -1,30 +1,8 @@
 require "formula"
 require "tab"
+require "diagnostic"
 
 module Homebrew
-  def missing_deps(ff)
-    missing = {}
-    ff.each do |f|
-      missing_deps = f.recursive_dependencies do |dependent, dep|
-        if dep.optional? || dep.recommended?
-          tab = Tab.for_formula(dependent)
-          Dependency.prune unless tab.with?(dep)
-        elsif dep.build?
-          Dependency.prune
-        end
-      end
-
-      missing_deps.map!(&:to_formula)
-      missing_deps.reject! { |d| d.installed_prefixes.any? }
-
-      unless missing_deps.empty?
-        yield f.full_name, missing_deps if block_given?
-        missing[f.full_name] = missing_deps
-      end
-    end
-    missing
-  end
-
   def missing
     return unless HOMEBREW_CELLAR.exist?
 
@@ -34,7 +12,7 @@ module Homebrew
       ARGV.resolved_formulae
     end
 
-    missing_deps(ff) do |name, missing|
+    Diagnostic.missing_deps(ff) do |name, missing|
       print "#{name}: " if ff.size > 1
       puts "#{missing * " "}"
     end

Library/Homebrew/cmd/update.rb

@@ -1,5 +1,5 @@
 require "cmd/tap"
-require "cmd/doctor"
+require "diagnostic"
 require "formula_versions"
 require "migrator"
 require "formulary"
@@ -15,7 +15,7 @@ module Homebrew
     end
 
     # check permissions
-    checks = Checks.new
+    checks = Diagnostic::Checks.new
     %w[
       check_access_usr_local
       check_access_homebrew_repository

Library/Homebrew/exceptions.rb

@@ -265,8 +265,8 @@ class BuildError < RuntimeError
       puts issues.map { |i| "#{i["title"]} #{i["html_url"]}" }.join("\n")
     end
 
-    require "cmd/doctor"
-    unsupported_osx = Checks.new.check_for_unsupported_osx
+    require "diagnostic"
+    unsupported_osx = Diagnostic::Checks.new.check_for_unsupported_osx
     opoo unsupported_osx if unsupported_osx
   end
 end

Library/Homebrew/test/test_integration_cmds.rb

@@ -1,6 +1,7 @@
 require "bundler"
 require "testing_env"
 require "core_formula_repository"
+require "fileutils"
 
 class IntegrationCommandTests < Homebrew::TestCase
   def cmd_output(*args)
@@ -152,7 +153,7 @@ class IntegrationCommandTests < Homebrew::TestCase
     cmd("readall", "--aliases", "--syntax")
     cmd("readall", "Homebrew/homebrew")
   ensure
-    formula_file.unlink
+    formula_file.unlink unless formula_file.nil?
     repo.alias_dir.rmtree
   end
 
@@ -181,4 +182,58 @@ class IntegrationCommandTests < Homebrew::TestCase
   ensure
     Tap::TAP_DIRECTORY.rmtree
   end
+
+  def test_missing
+    url = "file://#{File.expand_path("..", __FILE__)}/tarballs/testball-0.1.tbz"
+    sha256 = "1dfb13ce0f6143fe675b525fc9e168adb2215c5d5965c9f57306bb993170914f"
+    repo = CoreFormulaRepository.new
+    foo_file = repo.formula_dir/"foo.rb"
+    foo_file.write <<-EOS.undent
+      class Foo < Formula
+        url "#{url}"
+        sha256 "#{sha256}"
+      end
+    EOS
+
+    bar_file = repo.formula_dir/"bar.rb"
+    bar_file.write <<-EOS.undent
+      class Bar < Formula
+        url "#{url}"
+        sha256 "#{sha256}"
+        depends_on "foo"
+      end
+    EOS
+
+    cmd("install", "bar")
+    cmd("uninstall", "foo")
+    assert_match "foo", cmd("missing")
+  ensure
+    cmd("uninstall", "--force", "foo", "bar")
+    cmd("cleanup", "--force", "--prune=all")
+    foo_file.unlink unless foo_file.nil?
+    bar_file.unlink unless bar_file.nil?
+  end
+
+  def test_doctor_check_path_for_trailing_slashes
+    assert_match "Some directories in your path end in a slash",
+      cmd_fail("doctor", "check_path_for_trailing_slashes",
+               {"PATH" => ENV["PATH"] + File::PATH_SEPARATOR + "/foo/bar/"})
+  end
+
+  def test_doctor_check_for_anaconda
+    mktmpdir do |path|
+      anaconda = "#{path}/anaconda"
+      python = "#{path}/python"
+      FileUtils.touch anaconda
+      File.open(python, "w") do |file|
+        file.write("#! #{`which bash`}\necho -n '#{python}'\n")
+      end
+      FileUtils.chmod 0777, anaconda
+      FileUtils.chmod 0777, python
+
+      assert_match "Anaconda",
+        cmd_fail("doctor", "check_for_anaconda",
+                 {"PATH" => path + File::PATH_SEPARATOR + ENV["PATH"]})
+    end
+  end
 end