yeah please never do this 
as it will unnecessarily hit origin server, our storage bucket, every single time. Yes, (…)/builds.txt was stale but it would be fine and preferred if everyone went to something like (…)/builds.txt?0 instead, they’d all get the same fresh result. In any case the bug is fixed so this post is mostly moot. Thanks for looking into this and posting updates though!
wojtekmach
Hex Core Team
3
tcoopman
: 
kip
ex_cldr Core Team
I’m seeing unexpected output from mix dialyzer but only with the combination:
- Elixir 1.15.0-rc.0-otp-26
- Erlang 26.0
I don’t see this output for any other combinations I’ve tried:
- Elixir 1.15.0-rc.0-otp-25 with Erlang 25.3.2
- Elixir 1.14.4-otp-26 with Erlang 26.0
- Elixir 1.14.4-otp-25 with Erlang 25.3.2
The “errors” relate to transitive optional dependencies - they are not dependencies of ex_cldr_units. Interestingly there are other transitive optional dependencies that aren’t appearing in the messages!
I have tried adding the three libraries notes to :plt_add_apps to no avail (and fair enough, they aren’t actually configured in the lib being analysed - they are transitive optional dependencies).
Any help, clues, suggestions warmly welcomed.
==> ex_cldr_units
Compiling 24 files (.ex)
Generating MyApp.Cldr for 12 locales named [:af, :"af-NA", :ar, :bs, :de, ...] with a default locale named :en
warning: The locales [:af, :"af-NA", :ar, :bs, :de, :he, :ja, :se, :"se-SE"] configured in the CLDR backend MyApp.Cldr do not have localizations defined for additional units [:quarter].
Generating NoDocs.Cldr for 3 locales named [:en, :"en-001", :und] with a default locale named :"en-001"
Compiling mix/test_backend.ex (it's taking more than 10s)
Generated ex_cldr_units app
Finding suitable PLTs
Checking PLT...
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading gettext, dependency list may be incomplete.
{~c"no such file or directory", ~c"gettext.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading gettext, dependency list may be incomplete.
{~c"no such file or directory", ~c"gettext.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading gettext, dependency list may be incomplete.
{~c"no such file or directory", ~c"gettext.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
Error loading gettext, dependency list may be incomplete.
{~c"no such file or directory", ~c"gettext.app"}
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
[:asn1, :benchee, :castore, :certifi, :cldr_utils, :compiler, :crypto, :decimal, :deep_merge, :digital_token, :eex, :elixir, :ex_cldr, :ex_cldr_currencies, :ex_cldr_lists, :ex_cldr_numbers, :ex_unit, :gettext, :inets, :jason, :kernel, :logger, :mix, :nimble_parsec, :public_key, :ssl, :statistex, :stdlib]
PLT is up to date!
ignore_warnings: .dialyzer_ignore_warnings
Starting Dialyzer
[
check_plt: false,
init_plt: ~c"/Users/kip/Development/cldr_units/_build/dev/dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt",
files: [~c"/Users/kip/Development/cldr_units/_build/dev/lib/ex_cldr_units/ebin/Elixir.Cldr.Unit.InvalidRangeError.beam",
~c"/Users/kip/Development/cldr_units/_build/dev/lib/ex_cldr_units/ebin/Elixir.NoDocs.Cldr.Locale.beam",
~c"/Users/kip/Development/cldr_units/_build/dev/lib/ex_cldr_units/ebin/Elixir.NoDocs.Cldr.AcceptLanguage.beam",
~c"/Users/kip/Development/cldr_units/_build/dev/lib/ex_cldr_units/ebin/Elixir.Inspect.Cldr.Unit.beam",
~c"/Users/kip/Development/cldr_units/_build/dev/lib/ex_cldr_units/ebin/Elixir.Cldr.Unit.Conversion.beam",
...],
warnings: [:unknown]
]
Total errors: 0, Skipped: 0, Unnecessary Skips: 0
done in 0m8.49s
done (passed successfully)
0
josevalim
Creator of Elixir
Are those include as “concrete” dependencies somewhere? Does your application or any application that you depend on include them under applications in their .app file?
0
hst337
What about extending GenServer module with new non-blocking calls functionality added in OTP 23? Is it planned or did I miss something?
2
kip
ex_cldr Core Team
No, they aren’t. The only references grepped for certifi or castore are in cldr_utils and there are both optional: true.
A slightly simpler example is with the ex_cldr repo. Here’s the deps tree:
kip@Kips-MacBook-Pro cldr % mix deps.tree
ex_cldr
├── benchee ~> 1.0 (Hex package)
│ ├── deep_merge ~> 1.0 (Hex package)
│ └── statistex ~> 1.0 (Hex package)
├── cldr_utils ~> 2.21 (Hex package)
│ └── decimal ~> 1.9 or ~> 2.0 (Hex package)
├── decimal ~> 1.6 or ~> 2.0 (Hex package)
├── dialyxir ~> 1.0 (Hex package)
│ └── erlex >= 0.2.6 (Hex package)
├── ex_doc ~> 0.18 (Hex package)
│ ├── earmark_parser ~> 1.4.31 (Hex package)
│ ├── makeup_elixir ~> 0.14 (Hex package)
│ │ ├── makeup ~> 1.0 (Hex package)
│ │ │ └── nimble_parsec ~> 1.2.2 or ~> 1.3 (Hex package)
│ │ └── nimble_parsec ~> 1.2.3 or ~> 1.3 (Hex package)
│ └── makeup_erlang ~> 0.1 (Hex package)
│ └── makeup ~> 1.0 (Hex package)
├── gettext ~> 0.19 (Hex package)
│ └── expo ~> 0.4.0 (Hex package)
├── jason ~> 1.0 (Hex package)
│ └── decimal ~> 1.0 or ~> 2.0 (Hex package)
├── nimble_parsec ~> 0.5 or ~> 1.0 (Hex package)
├── stream_data ~> 0.4 (Hex package)
└── sweet_xml ~> 0.6 (Hex package)
There are no references to :certifi or :castore other than that they are optional dependencies in cldr_utils.
mix.lock
In mix.lock I see the following. There is not direct dependency on :certifi or :castore.
%{
"benchee": {:hex, :benchee, "1.1.0", "f3a43817209a92a1fade36ef36b86e1052627fd8934a8b937ac9ab3a76c43062", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, repo: "hexpm", optional: false]}, {:statistex, "~> 1.0", [hex: :statistex, repo: "hexpm", optional: false]}], "hexpm", "7da57d545003165a012b587077f6ba90b89210fd88074ce3c60ce239eb5e6d93"},
"cldr_utils": {:hex, :cldr_utils, "2.24.0", "5b356769f2baf9dd25b166e9f1b2a5ce955d5b556bc07f56c959cfff1ec9543e", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:certifi, "~> 2.5", [hex: :certifi, repo: "hexpm", optional: true]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "3fde251e0bbbe473230561019dd6c2958d82a10c134bb5b8b4e21a694196cf85"},
"decimal": {:hex, :decimal, "2.1.1", "5611dca5d4b2c3dd497dec8f68751f1f1a54755e8ed2a966c2633cf885973ad6", [:mix], [], "hexpm", "53cfe5f497ed0e7771ae1a475575603d77425099ba5faef9394932b35020ffcc"},
...
}
Dialyzer run
And running rm -rf _build && mix dialyzer I see:
Generated ex_cldr app
Finding suitable PLTs
Checking PLT...
Error loading castore, dependency list may be incomplete.
{~c"no such file or directory", ~c"castore.app"}
Error loading certifi, dependency list may be incomplete.
{~c"no such file or directory", ~c"certifi.app"}
[:asn1, :castore, :certifi, :cldr_utils, :compiler, :crypto, :decimal, :earmark_parser, :eex, :elixir, :ex_doc, :ex_unit, :expo, :gettext, :inets, :jason, :kernel, :logger, :makeup, :makeup_elixir, :makeup_erlang, :mix, :nimble_parsec, :public_key, :ssl, :stdlib, :sweet_xml, :xmerl]
Looking up modules in dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Looking up modules in dialyxir_erlang-26.0_elixir-1.15.0-rc.0.plt
Finding applications for dialyxir_erlang-26.0_elixir-1.15.0-rc.0.plt
Finding modules for dialyxir_erlang-26.0_elixir-1.15.0-rc.0.plt
Checking 463 modules in dialyxir_erlang-26.0_elixir-1.15.0-rc.0.plt
Finding applications for dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Unknown application :castore
Unknown application :certifi
Finding modules for dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Copying dialyxir_erlang-26.0_elixir-1.15.0-rc.0.plt to dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Looking up modules in dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Checking 463 modules in dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
Adding 626 modules to dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt
done in 0m24.86s
ignore_warnings: .dialyzer_ignore_warnings
Starting Dialyzer
[
check_plt: false,
init_plt: ~c"/Users/kip/Development/cldr/_build/dev/dialyxir_erlang-26.0_elixir-1.15.0-rc.0_deps-dev.plt",
files: [~c"/Users/kip/Development/cldr/_build/dev/lib/ex_cldr/ebin/Elixir.Cldr.LanguageTag.Chars.Cldr.LanguageTag.U.beam",
~c"/Users/kip/Development/cldr/_build/dev/lib/ex_cldr/ebin/Elixir.Cldr.Normalize.CalendarEra.beam",
~c"/Users/kip/Development/cldr/_build/dev/lib/ex_cldr/ebin/Elixir.Cldr.NoParentError.beam",
~c"/Users/kip/Development/cldr/_build/dev/lib/ex_cldr/ebin/Elixir.Cldr.UnknownFormatError.beam",
~c"/Users/kip/Development/cldr/_build/dev/lib/ex_cldr/ebin/Elixir.Mix.Tasks.Cldr.Install.Locales.beam",
...],
warnings: [:unknown]
]
Total errors: 0, Skipped: 0, Unnecessary Skips: 0
done in 0m14.19s
done (passed successfully)
ex_cldr.app
The relevant parts are:
{application,ex_cldr,
[{compile_env,[{ecto,[json_library],error},
{ex_cldr,['Elixir.MyApp.Gettext'],
{ok,[{default_locale,<<"en">>}]}},
{ex_cldr,[json_library],error},
{phoenix,[json_library],error}]},
{optional_applications,[jason,nimble_parsec,gettext,sweet_xml]},
{applications,[kernel,stdlib,elixir,logger,inets,ssl,eex,
ex_unit,cldr_utils,decimal,jason,ex_doc,
nimble_parsec,gettext,sweet_xml]},
0
al2o3cr
There’s a lot more info on the PR that introduced the improved optimization to OTP 26:
2
mat-hek
Membrane Core Team
Yeah, seen that and I think I get the concept, but I was wondering if it’s documented somewhere
0
al2o3cr
There’s a brief discussion of this optimization in the Efficiency Guide that also mentions how to detect when it’s happening vs not (the recv_opt_info compiler flag).
3
christhekeele
It appears to not be planned for a particular release—per this discussion there are still kinks to work out in the implementation.
2