linter.rb: Add assert_media_metadata

1 files changed, 41 insertions, 0 deletions

diff --git a/_plugins/linter.rb b/_plugins/linter.rb
index 5d78c17..aa55c8c 100644
--- a/_plugins/linter.rb
+++ b/_plugins/linter.rb
@@ -134,9 +134,50 @@ module Jekyll
       end
     end
 
+    def assert_media_metadata(site)
+      site.collections.each do |name, collection|
+        if ['podcasts', 'screencasts'].include? name then
+          collection.docs.each do |document|
+            date = document.data['date'].strftime('%Y-%m-%d')
+            slug = document.data['slug']
+            file =  "resources/#{name}/#{date}-#{slug}.flac"
+            if name == 'podcasts'
+              stdout = `metaflac --export-tags-to=- #{file}`
+              file_metadata = stdout.strip.split("\n")
+              expected = [
+                "COMMENTS=#{site.config['url']}/#{file}",
+                'ARTIST=EuAndreh',
+                "DATE=#{date}",
+                "TITLE=#{document.data['title']}",
+                "ALBUM=#{site.config['t']['podcasts']['feed']['title'][document.data['lang']]}"
+              ]
+              expected.each do |metadata|
+                unless file_metadata.include? metadata
+                  tags = expected.join('\\n').gsub(/'/, "'\"'\"'")
+                  add_metadata_cmd = "metaflac --remove-all #{file}\nprintf '#{tags}\\n' | metaflac --import-tags-from=- #{file}"
+                  check_metadata_cmd = "metaflac --export-tags-to=- #{file}"
+                  raise "Missing metadata entry '#{metadata}' in '#{file}'.\nAdd it with:\n\n#{add_metadata_cmd}\n\nCheck with:\n  #{check_metadata_cmd}"
+                end
+              end
+
+              check_cover_cmd = "metaflac #{file} --export-picture-to=- | diff - static/favicon.svg"
+              `#{check_cover_cmd}`
+              unless $?.success? then
+                add_cover_cmd = "metaflac #{file} --import-picture-from='3|image/svg+xml||420x420x24|static/favicon.svg'"
+                raise "Cover art from '#{file}' doesn't match 'static/favicon.svg'.\nFix it with:\n\n#{add_cover_cmd}\n\nCheck with:\n  #{check_cover_cmd}"
+              end
+            elsif name == 'screencasts' then
+              p document
+            end
+          end
+        end
+      end
+    end
+
     def generate(site)
       assert_unique_ids(site)
       assert_frontmatter(site)
+      assert_media_metadata(site)
       assert_git_annex(site)
     end