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Development tooling for the Mob mobile framework
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Files
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Files
lib/mix/tasks/mob.release.ex
defmodule Mix.Tasks.Mob.Release do
use Mix.Task
@shortdoc "Build a signed iOS .ipa for App Store / TestFlight"
@moduledoc """
Builds a release-signed iOS `.ipa` ready to upload to App Store Connect.
mix mob.release
## Output
`_build/mob_release/<App>.ipa`
Use `mix mob.publish` to upload it to TestFlight.
## Prerequisites
1. Apple Developer Program membership (paid, $99/yr)
2. An "Apple Distribution" certificate in your keychain
(Xcode → Settings → Accounts → Manage Certificates → +)
3. An App Store provisioning profile for your bundle ID, downloaded
to `~/Library/Developer/Xcode/UserData/Provisioning Profiles/`.
`mix mob.provision --distribution` automates the profile download.
## What it does
1. Resolves a distribution signing identity + App Store profile
(auto-detect, or `:ios_dist_sign_identity` / `:ios_dist_profile_uuid`
in `mob.exs`)
2. Generates `ios/release_device.sh` and runs it:
- Compiles BEAMs and copies them into the OTP runtime
- Builds native sources with `-DMOB_RELEASE` so `mob_beam.m`
drops EPMD + the distribution BEAM args
- Links the iOS device binary, no EPMD object files
- Signs the `.app` with the distribution identity (no `get-task-allow`)
- Packages as `Payload/<App>.app` zipped into `<App>.ipa`
The shipped `.ipa` runs the full BEAM but with no Erlang distribution
surface — `Mob.Dist.ensure_started/1` no-ops at runtime when
`MOB_RELEASE=1`.
"""
@impl Mix.Task
def run(_args) do
case :os.type() do
{:unix, :darwin} -> :ok
_ -> Mix.raise("mix mob.release is only supported on macOS.")
end
unless File.dir?("ios") do
Mix.raise("No ios/ directory found. Run from the root of a mob iOS project.")
end
Mix.Task.run("compile")
case MobDev.Release.build_ipa() do
{:ok, path} ->
Mix.shell().info("")
Mix.shell().info("#{green()}✓ Release build complete#{reset()}")
Mix.shell().info(" IPA: #{cyan()}#{path}#{reset()}")
Mix.shell().info(" Size: #{file_size_human(path)}")
Mix.shell().info("")
Mix.shell().info("Next: #{cyan()}mix mob.publish#{reset()} to upload to TestFlight.")
{:error, reason} ->
Mix.raise(reason)
end
end
defp file_size_human(path) do
case File.stat(path) do
{:ok, %{size: bytes}} ->
cond do
bytes >= 1024 * 1024 ->
:io_lib.format("~.1fM", [bytes / (1024 * 1024)]) |> List.flatten()
bytes >= 1024 ->
:io_lib.format("~.1fK", [bytes / 1024]) |> List.flatten()
true ->
"#{bytes}B"
end
|> to_string()
_ ->
"?"
end
end
defp green, do: IO.ANSI.green()
defp cyan, do: IO.ANSI.cyan()
defp reset, do: IO.ANSI.reset()
end