Error with Crystal 0.35.0 ?

[CaDs]

Description

When I run a basic Kemal app I'm getting Warning: Zlib is deprecated, use Compress::Zlib error.

Steps to Reproduce

1. cristal init app test
2. add kemal dependencies

name: blog
version: 0.1.0

authors:
  - xxx

targets:
  blog:
    main: src/blog.cr

crystal: 0.35.0

license: MIT

dependencies:
  kemal:
    github: kemalcr/kemal

3. shards install
4. crystal run src/blog.cr
5. Warning: Zlib is deprecated, use Compress::Zlib is returned

Expected behavior: [What you expect to happen]
Kemal should start

Actual behavior: [What actually happens]
An error is risen

Reproduces how often: [What percentage of the time does it reproduce?]
Everytime

Versions

Crystal 0.35.0 (2020-06-09)

LLVM: 10.0.0
Default target: x86_64-apple-macosx

Additional Information

crystal run src/blog.cr --error-trace

Warning: Zlib is deprecated, use Compress::Zlib
In src/blog.cr:21:7

 21 | Kemal.run do |config|
            ^--
Error: instantiating 'Kemal:Module#run()'


In lib/kemal/src/kemal.cr:65:12

 65 | server.listen unless config.env == "test"
             ^-----
Error: instantiating 'HTTP::Server#listen()'


In /usr/local/Cellar/crystal/0.35.0/src/http/server.cr:455:14

 455 | @sockets.each do |socket|
                ^---
Error: instantiating 'Array(Socket::Server)#each()'


In /usr/local/Cellar/crystal/0.35.0/src/indexable.cr:187:5

 187 | each_index do |i|
       ^---------
Error: instantiating 'each_index()'


In /usr/local/Cellar/crystal/0.35.0/src/indexable.cr:187:5

 187 | each_index do |i|
       ^---------
Error: instantiating 'each_index()'


In /usr/local/Cellar/crystal/0.35.0/src/http/server.cr:455:14

 455 | @sockets.each do |socket|
                ^---
Error: instantiating 'Array(Socket::Server)#each()'


In /usr/local/Cellar/crystal/0.35.0/src/http/server.cr:468:13

 468 | spawn handle_client(_io)
       ^
Error: expanding macro


There was a problem expanding macro 'spawn'

Called macro defined in /usr/local/Cellar/crystal/0.35.0/src/concurrent.cr:99:1

 99 | macro spawn(call, *, name = nil, same_thread = false, &block)

Which expanded to:

 >  1 |
 >  2 |
 >  3 |
 >  4 |     ->(
 >  5 |
 >  6 |         __arg0 : typeof(_io),
 >  7 |
 >  8 |
 >  9 |       ) {
 > 10 |       spawn(name: nil, same_thread: false) do
 > 11 |         handle_client(
 > 12 |
 > 13 |             __arg0,
 > 14 |
 > 15 |
 > 16 |         )
 > 17 |       end
 > 18 |
 > 19 |       }.call(_io)
 > 20 |
 > 21 |
Error: instantiating 'handle_client(IO+)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server.cr:513:16

 513 | @processor.process(io, io)
                  ^------
Error: instantiating 'HTTP::Server::RequestProcessor#process(IO+, IO+)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/request_processor.cr:50:20

 50 | @handler.call(context)
               ^---
Error: instantiating '(HTTP::Handler | Proc(HTTP::Server::Context, Nil))#call(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handlers/compress_handler.cr:12:5

 12 | {% if flag?(:without_zlib) %}
      ^
Error: expanding macro


There was a problem expanding macro 'macro_4775098448'

Called macro defined in /usr/local/Cellar/crystal/0.35.0/src/http/server/handlers/compress_handler.cr:12:5

 12 | {% if flag?(:without_zlib) %}

Which expanded to:

 >  1 |
 >  2 |       request_headers = context.request.headers
 >  3 |
 >  4 |       if request_headers.includes_word?("Accept-Encoding", "gzip")
 >  5 |         context.response.headers["Content-Encoding"] = "gzip"
 >  6 |         context.response.output = Compress::Gzip::Writer.new(context.response.output, sync_close: true)
 >  7 |       elsif request_headers.includes_word?("Accept-Encoding", "deflate")
 >  8 |         context.response.headers["Content-Encoding"] = "deflate"
 >  9 |         context.response.output = Compress::Deflate::Writer.new(context.response.output, sync_close: true)
 > 10 |       end
 > 11 |
 > 12 |       call_next(context)
 > 13 |
Error: instantiating 'call_next(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handler.cr:28:20

 28 | next_handler.call(context)
                   ^---
Error: instantiating '(HTTP::Handler | Proc(HTTP::Server::Context, Nil))#call(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handlers/error_handler.cr:17:7

 17 | call_next(context)
      ^--------
Error: instantiating 'call_next(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handler.cr:28:20

 28 | next_handler.call(context)
                   ^---
Error: instantiating '(HTTP::Handler | Proc(HTTP::Server::Context, Nil))#call(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handlers/log_handler.cr:20:7

 20 | call_next(context)
      ^--------
Error: instantiating 'call_next(HTTP::Server::Context)'


In /usr/local/Cellar/crystal/0.35.0/src/http/server/handler.cr:28:20

 28 | next_handler.call(context)
                   ^---
Error: instantiating '(HTTP::Handler | Proc(HTTP::Server::Context, Nil))#call(HTTP::Server::Context)'


In lib/kemal/src/kemal/static_file_handler.cr:66:9

 66 | send_file(context, file_path)
      ^--------
Error: instantiating 'send_file(HTTP::Server::Context, String)'


In lib/kemal/src/kemal/helpers/helpers.cr:135:8

 135 | File.open(file_path) do |file|
            ^---
Error: instantiating 'File.class#open(String)'


In lib/kemal/src/kemal/helpers/helpers.cr:135:8

 135 | File.open(file_path) do |file|
            ^---
Error: instantiating 'File.class#open(String)'


In lib/kemal/src/kemal/helpers/helpers.cr:143:7

 143 | Gzip::Writer.open(env.response) do |deflate|
       ^
Error: undefined constant Gzip::Writer

[Blacksmoke16]

Duplicate of:

• Compilation error on crystal 0.35.0.  #573
• Cannot get kemal through shards that has the fix for Crystal 0.35 #572
• Compile error with Crystal 0.35.0 related to Gzip/Zlib #571

Fixed by #570, just waiting on a new release. Can use branch, or commit options as mentioned in #572.

[CaDs]

Thanks