Add GitHub::search_code method.

Library/Homebrew/cmd/search.rb

@@ -59,7 +59,7 @@ module Homebrew
       local_results = search_formulae(regex)
       puts Formatter.columns(local_results) unless local_results.empty?
       tap_results = search_taps(query)
-      puts Formatter.columns(tap_results) if tap_results && !tap_results.empty?
+      puts Formatter.columns(tap_results) unless tap_results.empty?
 
       if $stdout.tty?
         count = local_results.length + tap_results.length
@@ -101,22 +101,16 @@ module Homebrew
   end
 
   def search_taps(query)
-    valid_dirnames = ["Formula", "HomebrewFormula", "Casks", ".", ""].freeze
-    q = "user:Homebrew%20user:caskroom%20filename:#{query}"
-    GitHub.open "https://api.github.com/search/code?q=#{q}" do |json|
-      json["items"].map do |object|
-        dirname, filename = File.split(object["path"])
+    valid_dirnames = ["Formula", "HomebrewFormula", "Casks", "."].freeze
+    matches = GitHub.search_code("user:Homebrew", "user:caskroom", "filename:#{query}", "extension:rb")
+    [*matches].map do |match|
+      dirname, filename = File.split(match["path"])
       next unless valid_dirnames.include?(dirname)
-        user = object["repository"]["owner"]["login"]
-        user = user.downcase if user == "Homebrew"
-        repo = object["repository"]["name"].sub(/^homebrew-/, "")
-        tap = Tap.fetch user, repo
+      tap = Tap.fetch(match["repository"]["full_name"])
       next if tap.installed?
-        basename = File.basename(filename, ".rb")
-        "#{user}/#{repo}/#{basename}"
+      "#{tap.name}/#{File.basename(filename, ".rb")}"
     end.compact
   end
-  end
 
   def search_formulae(regex)
     aliases = Formula.alias_full_names

Library/Homebrew/test/cmd/search_remote_tap_spec.rb

@@ -7,10 +7,7 @@ describe Homebrew do
         {
           "path" => "Formula/some-formula.rb",
           "repository" => {
-            "name" => "homebrew-foo",
-            "owner" => {
-              "login" => "Homebrew",
-            },
+            "full_name" => "Homebrew/homebrew-foo",
           },
         },
       ],

Library/Homebrew/utils/github.rb

@@ -4,7 +4,7 @@ require "tempfile"
 module GitHub
   module_function
 
-  ISSUES_URI = URI.parse("https://api.github.com/search/issues")
+  API_URL = "https://api.github.com".freeze
 
   CREATE_GIST_SCOPES = ["gist"].freeze
   CREATE_ISSUE_SCOPES = ["public_repo"].freeze
@@ -228,13 +228,19 @@ module GitHub
   end
 
   def issues_matching(query, qualifiers = {})
-    uri = ISSUES_URI.dup
+    uri = URI.parse("#{API_URL}/search/issues")
     uri.query = build_query_string(query, qualifiers)
     open(uri) { |json| json["items"] }
   end
 
   def repository(user, repo)
-    open(URI.parse("https://api.github.com/repos/#{user}/#{repo}")) { |j| j }
+    open(URI.parse("#{API_URL}/repos/#{user}/#{repo}")) { |j| j }
+  end
+
+  def search_code(*params)
+    uri = URI.parse("#{API_URL}/search/code")
+    uri.query = "q=#{uri_escape(params.join(" "))}"
+    open(uri) { |json| json["items"] }
   end
 
   def build_query_string(query, qualifiers)
@@ -286,7 +292,7 @@ module GitHub
   end
 
   def private_repo?(user, repo)
-    uri = URI.parse("https://api.github.com/repos/#{user}/#{repo}")
+    uri = URI.parse("#{API_URL}/repos/#{user}/#{repo}")
     open(uri) { |json| json["private"] }
   end
 end