Changelog

v0.1.6 (2026-06-13)

[CanonicalTailwind.Canonicalizer] Detect tailwindcss CLI death immediately instead of waiting out the full :timeout, and name the :timeout option in the timeout error
[CanonicalTailwind.Pool] Surface a dead or crashed CLI worker as a clear error instead of an opaque GenServer.call exit
[CanonicalTailwind.Pool] Stop the config-drift check from raising on a :tailwind env change that resolves to the same configuration (e.g. an umbrella app carrying an immaterial key like :version_check)
[CanonicalTailwind.Config] Track tailwind 0.5.0's version-suffixed binary name in the _build/ LSP fallback, restoring on-save formatting under Expert / ElixirLS
[CanonicalTailwind.Config] Detect the CLI version reliably by running with NO_COLOR and reading the full version token, so the minimum-version check is no longer silently skipped on colorized or pre-release banners
[CanonicalTailwind.Config] Harden tailwind profile resolution: ignore non-keyword :tailwind globals when auto-detecting, and raise a clear error when a configured :profile names a non-profile key like :version instead of crashing with an opaque Keyword.get/3 error

[CanonicalTailwind.Config] Support tailwind 0.5.0's per-profile :version: resolve the binary for the selected profile's pinned version
[CanonicalTailwind.Pool] Point the config-drift error at the per-app mix format workaround

[CanonicalTailwind.Pool] Recover missing canonicalizer workers, restoring long-running LSP sessions after a worker crash
[CanonicalTailwind.Config] Locate tailwindcss binary under LSPs that isolate _build/, restoring on-save formatting under Expert and ElixirLS

[CanonicalTailwind.Pool] Prevent mixed-config workers by serializing cold start and clearing stale workers from prior incomplete cold starts

[CanonicalTailwind.Pool] Raise on canonical_tailwind config drift after the pool has started — umbrella setups that previously formatted concurrently with different formatter opts will now get a loud error instead of silent stale-config behavior

Support attributes other than class via attribute_formatters (#4)
Validate :binary, :cd, and :pool_size config options at startup
Check minimum CLI version against the installed binary, not just the configured version

Initial release.

Canonicalize Tailwind CSS utility classes in HEEx templates (sort, normalize, collapse)
Delegate to tailwindcss canonicalize --stream via Elixir ports
Pool of CLI processes for parallel mix format
Works with LSP formatters (Expert, ElixirLS)
Configurable pool size, binary path, and tailwind profile
Fall back to _build when Tailwind.bin_path() resolves to a nonexistent location (LSP compatibility)