diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 3ce7303d47..c10858a353 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -12,6 +12,7 @@ require "mechanize/version"
 require "mechanize/http/content_disposition_parser"
 
 require "utils/curl"
+require "utils/github"
 
 require "github_packages"
 
@@ -1069,43 +1070,13 @@ class GitHubGitDownloadStrategy < GitDownloadStrategy
     @repo = repo
   end
 
-  def github_last_commit
-    # TODO: move to Utils::GitHub
-    return if Homebrew::EnvConfig.no_github_api?
-
-    output, _, status = curl_output(
-      "--silent", "--head", "--location",
-      "-H", "Accept: application/vnd.github.sha",
-      "https://api.github.com/repos/#{@user}/#{@repo}/commits/#{@ref}"
-    )
-
-    return unless status.success?
-
-    commit = output[/^ETag: "(\h+)"/, 1]
-    version.update_commit(commit) if commit
-    commit
-  end
-
-  def multiple_short_commits_exist?(commit)
-    # TODO: move to Utils::GitHub
-    return if Homebrew::EnvConfig.no_github_api?
-
-    output, _, status = curl_output(
-      "--silent", "--head", "--location",
-      "-H", "Accept: application/vnd.github.sha",
-      "https://api.github.com/repos/#{@user}/#{@repo}/commits/#{commit}"
-    )
-
-    !(status.success? && output && output[/^Status: (200)/, 1] == "200")
-  end
-
   def commit_outdated?(commit)
-    @last_commit ||= github_last_commit
+    @last_commit ||= GitHub.last_commit(@user, @repo, @ref)
     if @last_commit
       return true unless commit
       return true unless @last_commit.start_with?(commit)
 
-      if multiple_short_commits_exist?(commit)
+      if GitHub.multiple_short_commits_exist?(@user, @repo, commit)
         true
       else
         version.update_commit(commit)
diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index 0d7472784b..1769f1cb43 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -666,4 +666,32 @@ module GitHub
     pr_data = API.open_rest(url_to("repos", user, repo, "pulls", pr))
     pr_data["labels"].map { |label| label["name"] }
   end
+
+  def last_commit(user, repo, ref)
+    return if Homebrew::EnvConfig.no_github_api?
+
+    output, _, status = curl_output(
+      "--silent", "--head", "--location",
+      "-H", "Accept: application/vnd.github.sha",
+      "https://api.github.com/repos/#{user}/#{repo}/commits/#{ref}"
+    )
+
+    return unless status.success?
+
+    commit = output[/^ETag: "(\h+)"/, 1]
+    version.update_commit(commit) if commit
+    commit
+  end
+
+  def multiple_short_commits_exist?(user, repo, commit)
+    return if Homebrew::EnvConfig.no_github_api?
+
+    output, _, status = curl_output(
+      "--silent", "--head", "--location",
+      "-H", "Accept: application/vnd.github.sha",
+      "https://api.github.com/repos/#{user}/#{repo}/commits/#{commit}"
+    )
+
+    !(status.success? && output && output[/^Status: (200)/, 1] == "200")
+  end
 end