Bitbucket: Fix tag match

The `Bitbucket` strategy currently matches versions from tag
tarball links on a project's `downloads/?tab=tags` page. It appears
that Bitbucket now uses a hash as the filename on this page instead
of the tag name, so the existing regex no longer matches.

This adds an alternative regex to match versions from the tag name
element (e.g., `<td class="name">example-1.2.3</td>`), which will fix
version matching in this scenario.

Library/Homebrew/livecheck/strategy/bitbucket.rb

@@ -61,24 +61,29 @@ module Homebrew
           match = url.match(URL_MATCH_REGEX)
           return values if match.blank?
 
+          regex_prefix = Regexp.escape(T.must(match[:prefix])).gsub("\\-", "-")
+
           # `/get/` archives are Git tag snapshots, so we need to check that tab
           # instead of the main `/downloads/` page
-          values[:url] = if match[:dl_type] == "get"
+          if match[:dl_type] == "get"
-            "https://bitbucket.org/#{match[:path]}/downloads/?tab=tags"
+            values[:url] = "https://bitbucket.org/#{match[:path]}/downloads/?tab=tags"
-          else
-            "https://bitbucket.org/#{match[:path]}/downloads/"
-          end
 
-          regex_prefix = Regexp.escape(T.must(match[:prefix])).gsub("\\-", "-")
+            # Example tag regexes:
+            # * `/<td[^>]*?class="name"[^>]*?>\s*v?(\d+(?:\.\d+)+)\s*?</im`
+            # * `/<td[^>]*?class="name"[^>]*?>\s*abc-v?(\d+(?:\.\d+)+)\s*?</im`
+            values[:regex] = /<td[^>]*?class="name"[^>]*?>\s*#{regex_prefix}v?(\d+(?:\.\d+)+)\s*?</im
+          else
+            values[:url] = "https://bitbucket.org/#{match[:path]}/downloads/"
 
             # Use `\.t` instead of specific tarball extensions (e.g. .tar.gz)
             suffix = T.must(match[:suffix]).sub(Strategy::TARBALL_EXTENSION_REGEX, ".t")
             regex_suffix = Regexp.escape(suffix).gsub("\\-", "-")
 
-          # Example regexes:
+            # Example file regexes:
             # * `/href=.*?v?(\d+(?:\.\d+)+)\.t/i`
-          # * `/href=.*?example-v?(\d+(?:\.\d+)+)\.t/i`
+            # * `/href=.*?abc-v?(\d+(?:\.\d+)+)\.t/i`
             values[:regex] = /href=.*?#{regex_prefix}v?(\d+(?:\.\d+)+)#{regex_suffix}/i
+          end
 
           values
         end

Library/Homebrew/test/livecheck/strategy/bitbucket_spec.rb

@@ -17,7 +17,7 @@ describe Homebrew::Livecheck::Strategy::Bitbucket do
     {
       get:       {
         url:   "https://bitbucket.org/abc/def/downloads/?tab=tags",
-        regex: /href=.*?v?(\d+(?:\.\d+)+)\.t/i,
+        regex: /<td[^>]*?class="name"[^>]*?>\s*v?(\d+(?:\.\d+)+)\s*?</im,
       },
       downloads: {
         url:   "https://bitbucket.org/abc/def/downloads/",