diff options
Diffstat (limited to 'lib/banzai/filter/truncate_source_filter.rb')
-rw-r--r-- | lib/banzai/filter/truncate_source_filter.rb | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/lib/banzai/filter/truncate_source_filter.rb b/lib/banzai/filter/truncate_source_filter.rb index 44f88b253d9..a21d4a44295 100644 --- a/lib/banzai/filter/truncate_source_filter.rb +++ b/lib/banzai/filter/truncate_source_filter.rb @@ -3,12 +3,29 @@ module Banzai module Filter class TruncateSourceFilter < HTML::Pipeline::TextFilter + CHARACTER_COUNT_LIMIT = 1.megabyte + USER_MSG_LIMIT = 10_000 + def call - return text unless context.key?(:limit) + # don't truncate if it's a :blob and no limit is set + return text if context[:text_source] == :blob && !context.key?(:limit) + + limit = context[:limit] || CHARACTER_COUNT_LIMIT + + # no sense in allowing `truncate_bytes` to duplicate a large + # string unless it's too big + return text if text.bytesize <= limit # Use three dots instead of the ellipsis Unicode character because # some clients show the raw Unicode value in the merge commit. - text.truncate_bytes(context[:limit], omission: '...') + trunc = text.truncate_bytes(limit, omission: '...') + + # allows us to indicate to the user that what they see is a truncated copy + if limit > USER_MSG_LIMIT + trunc.prepend("_The text is longer than #{limit} characters and has been visually truncated._\n\n") + end + + trunc end end end |