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A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more
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Files
lib/phoenix_kit/install/asset_rebuild.ex
defmodule PhoenixKit.Install.AssetRebuild do
@moduledoc """
Handles asset rebuilding for PhoenixKit installations and updates.
This module provides asset rebuilding using the standard Phoenix asset pipeline.
It tries multiple build commands in order of preference:
1. `mix assets.build` - Phoenix 1.8+ standard asset pipeline
2. `mix esbuild default --minify` - Individual ESBuild compilation
3. `mix tailwind default --minify` - Individual Tailwind compilation
4. `npm run build` - NPM build script fallback
5. `npm run build.css` - NPM CSS build script fallback
Assets are always rebuilt to ensure consistency after PhoenixKit updates.
"""
@doc """
Executes asset rebuilding using standard Phoenix asset pipeline.
## Options
- `:verbose` - Show detailed output (default: true)
## Returns
- `:rebuild_completed` - Assets were successfully rebuilt
- `:rebuild_failed` - Asset rebuild failed (non-critical)
"""
def check_and_rebuild(opts \\ []) do
verbose = Keyword.get(opts, :verbose, true)
# Execute rebuild using Phoenix standard commands
execute_asset_rebuild(verbose)
end
# Execute the actual asset rebuild process using Phoenix standards
defp execute_asset_rebuild(verbose) do
if verbose do
IO.puts("🎨 Rebuilding assets using Phoenix asset pipeline...")
end
# Try Phoenix standard asset build commands in order of preference
commands_to_try = [
# Phoenix 1.8+ standard asset pipeline
{"mix", ["assets.build"]},
# Individual asset builders
{"mix", ["esbuild", "default", "--minify"]},
{"mix", ["tailwind", "default", "--minify"]},
# Fallback to npm
{"npm", ["run", "build"]},
{"npm", ["run", "build.css"]}
]
execute_first_available_command(commands_to_try, verbose)
end
# Try commands in order until one succeeds
defp execute_first_available_command([], verbose) do
if verbose do
IO.puts("ℹ️ No asset build commands available - skipping asset rebuild")
end
:rebuild_completed
end
defp execute_first_available_command([{cmd, args} | rest], verbose) do
if verbose do
IO.puts("🔧 Trying: #{cmd} #{Enum.join(args, " ")}")
end
try do
# Run command with 60 second timeout to prevent hanging
result = run_with_timeout(cmd, args, 60_000)
case result do
{:ok, _output} ->
if verbose, do: IO.puts("✅ Assets rebuilt successfully with #{cmd}!")
:rebuild_completed
{:error, :timeout} ->
if verbose do
IO.puts("⚠️ Command timed out after 60 seconds, trying next option...")
end
execute_first_available_command(rest, verbose)
{:error, output} ->
if verbose do
IO.puts("⚠️ Command failed, trying next option...")
IO.puts("Output: #{String.slice(output, 0, 200)}")
end
execute_first_available_command(rest, verbose)
end
rescue
_ ->
if verbose do
IO.puts("❌ #{cmd} not available, trying next option...")
end
execute_first_available_command(rest, verbose)
end
end
# Run a command with a timeout
defp run_with_timeout(cmd, args, timeout_ms) do
parent = self()
ref = make_ref()
# Spawn a process to run the command
{pid, _} =
spawn_monitor(fn ->
result =
try do
case System.cmd(cmd, args, stderr_to_stdout: true) do
{output, 0} -> {:ok, output}
{output, _} -> {:error, output}
end
rescue
e -> {:error, inspect(e)}
end
send(parent, {ref, result})
end)
# Wait for result or timeout
receive do
{^ref, result} ->
result
{:DOWN, _, :process, ^pid, _reason} ->
{:error, "process crashed"}
after
timeout_ms ->
# Kill the spawned process if it's still running
Process.exit(pid, :kill)
# Drain any pending messages from the killed process
receive do
{^ref, _} -> :ok
{:DOWN, _, :process, ^pid, _} -> :ok
after
100 -> :ok
end
{:error, :timeout}
end
end
end