* Add wasm server_manager and ownership guard
Introduce a new wasm server_manager module that implements WasmServerOwnershipGuard to manage per-workspace lock files, PID/port ownership, and safe replacement of stale or live servers. Integrate the guard into compile::run by preparing and activating the guard before starting the HTTP server; start_wasm_server now accepts the guard, returns a Result, checks bind success, activates the guard, and propagates thread join errors. The server manager includes platform-specific PID handling, port-probing, lock read/write/remove helpers, and unit tests exercising startup scenarios and lock lifecycle. Also add mod declaration and apply minor formatting/refactor cleanups across compile.rs (error formatting, whitespace, and logging improvements).
* Add startup mutex and port occupant diagnostics
Rename server_manager into top-level module and add startup mutex handling and improved diagnostics. Introduces atomic lock writes (write_file_atomically), a StartupMutexGuard with configurable timeouts/polling, and logic to detect/recover stale startup locks to prevent concurrent wasm run startups. Extends ServerManagerProbes with describe_port_occupant and implements platform-specific detection (lsof on Unix, netstat/tasklist on Windows) to provide clearer errors when ports are occupied. Updates imports (main.rs, compile.rs, mod.rs) and adds unit tests covering startup lock behavior and unknown-occupant error text.
* Improve hot-reload logging and delivery
Add clearer logging and error handling for wasm hot-reload events. Introduces hot_reload_display_name to extract a user-friendly file name, logs when a hotreload is detected, and checks tx.send result to avoid panics when the watcher channel is closed. broadcast_hot_reload_event now logs whether events were skipped (no /$watch clients) or sent and includes the delivered client count with proper pluralization.
* Check lock PID owns port and add startup timestamp
Require that a lock's PID both be alive and actually own the server port to be considered a live lock (classify_lock_state now takes listen_addr). Add parsing of a started_at timestamp in startup locks and use now_unix_millis to age out stale startup locks even if the PID is alive. Extend ServerManagerProbes with now_unix_millis and pid_owns_port, implement port_occupant_info and PortOccupant to centralize occupant detection/refinement for unix and windows, and refactor describe_port_occupant to use it. Update tests and MockProbes to exercise PID ownership checks and startup-lock aging; add tests for PID reuse (treated as stale if it doesn't own the port) and for startup lock aging.
* Hot reload: dedupe sites, add logging
Avoid duplicate ScriptMod sites during hot reload and improve diagnostics. collect_compiled_sites_for_file now tracks seen ScriptModKey values to prevent pushing duplicates. handle_cx_live_edit counts processed files and logs how many overrides were applied and from how many changed files. forward_hot_reload_fs_event logs each detected file and reports if the watcher channel is closed. Minor import cleanup and a helper hot_reload_display_name were added for nicer log output.
* shared core for reload
* Warn and fallback to unminified JS on write error
When writing the minified JS file fails, log a warning and fall back to copying the original JS file instead of returning an error. This avoids failing the build on IO/write errors (e.g. permissions or disk issues) while preserving the previous behavior of using the unminified copy when reading fails. No change to successful minification path.
* wip
* Handle wasm data segments and manage brotli artifacts
Add full support for parsing, encoding and rewriting Wasm data segments: introduce WasmDataSegmentKind (Active/Passive), helpers to encode varints and const i32 exprs, and functions to rewrite the data section or replace a section payload. Update wasm_split_data_segments to preserve passive segments and data.count (section 12), only extract active segments into a separate split blob, and adjust segment counting and tests accordingly.
Bump brotli dependency to 8.0 in tools, and add remove_brotli_artifact to remove leftover .br files when brotli compression is disabled. Call this cleanup in cargo_makepad build/copy paths and when removing split data, and add .bin MIME mapping and print mapping for .bin in the server output. Tests updated to cover passive segments and data_count preservation.
* Support split data v2 and wasm rebuild
Add support for a new split data format (version 2) and the ability to rebuild a WASM module with its data section. wasm_bridge.js: parse v1/v2 split blobs, return {version, segments}, add varint encode/decode helpers, encode split-data section payloads, implement rebuild_split_wasm, fetch-and-instantiate logic to fetch both wasm and split blobs and handle v1 preloaded splits or rebuild for v2. wasm_strip.rs: bump split data version to 2, include segment kind and memory_index in encoded split data, preserve passive segments, update encoding/decoding and tests, and return the updated segment count. tools/cargo_makepad/src/wasm/compile.rs: separate target spec directories for threaded vs single builds (threads/single).
* basic splitting
* Instantiate secondary Wasm module in threads
Store and expose a compiled secondary WebAssembly module from the primary module, and ensure worker contexts (Web Worker and AudioWorklet) instantiate that secondary module before running thread entrypoints. Changes: save _secondary_module on primary_wasm in wasm_bridge, include secondary_module in WasmWebBrowser info, and add async instantiate_secondary logic + awaits in audio_worklet and web_worker so the secondary module is instantiated with {env, primary: primary_wasm.exports} prior to initializing stack/TLS or starting execution. This ensures the secondary module can import primary exports in threaded contexts and prevents race conditions by waiting for instantiation to complete.
* more cleanups
* more cleanup
* wip
* remove double wasm pump
* cleanup
* Cold-first auto wasm split with fallback
Add a cold-only function-splitting mode and automatic fallback to preserve startup-safe behavior. Introduces wasm_split_functions_cold() and a split_auto flag to run a cold-first pass that moves defer-safe cold functions to a secondary wasm; if no useful cold candidates are found the build falls back to the normal startup-path function split so the app still gets a secondary payload.
Changes include: update to CLI help text, new split_auto handling in WasmConfig, AutoSplitOutcome variants, compile logic to prefer cold-only splits then fall back to the regular split, adjusted logging for automatic mode, and README wording clarifications. Files touched: README.md, libs/wasm_strip/src/wasm_strip.rs, tools/cargo_makepad/src/main.rs, tools/cargo_makepad/src/wasm/compile.rs, tools/cargo_makepad/src/wasm/mod.rs.
* Tune brotli compression parameters
Adjust brotli settings in tools/cargo_makepad/src/wasm/compile.rs: increase buffer size from 4KB to 64KB, lower quality from 12 to 11, and raise window size from 22 to 24. This balances throughput and compression ratio for larger wasm artifacts—bigger buffer and window can improve compression effectiveness while slightly reducing CPU cost by lowering quality.
* Add optional wasm-opt optimization flag
Introduce an optional --wasm-opt option that runs Binaryen's wasm-opt -Os on built wasm when available. Adds a wasm_opt flag to WasmConfig (default false), parses the CLI option, and integrates a try_wasm_opt helper that writes a temp wasm, invokes wasm-opt, reads back the optimized output and prints size/reporting while gracefully falling back on errors. The wasm-opt step runs before the existing split/strip pipeline. Also updates CLI help text, minor Cargo.toml formatting changes, and removes a vendor UPSTREAM.md reference.
* update readme
* Shorten split exports to $s/$p and use base62
Rename split-related exports/imports to shorter identifiers and compress numeric indices using base62. Changes: export/table slot prefix changed from "__mp_split_table"/"__mp_split_slot_*" to "$s" and the primary import namespace from "primary" to "$p" across wasm_bridge, audio_worklet, and web_worker. Introduces encode_base62 in wasm_strip to emit $f/$t/$m/$g names with base62-encoded indices, and updates primary/secondary module generation and tests accordingly. Also includes minor JS formatting/whitespace cleanups and small safety/compatibility tweaks during WebAssembly instantiation.
* Preload WASM modules and set cache headers
Inject modulepreload links into generated HTML (conditionally including wasm_bridge and bindgen when bindgen is enabled, otherwise preloading web_gl only) to improve module loading. Also change served asset Cache-Control from max-age=0 to max-age=86400 (1 day) for both brotli-compressed and uncompressed responses to enable client caching and reduce repeated fetches.
* Minify JS when copying before brotli
Add a lightweight JS minifier and apply it in cp_brotli for .js files. Introduces minify_js which strips line/block comments, collapses unnecessary whitespace, preserves strings/escaped characters and simple regex literals (heuristic), and removes empty lines. cp_brotli now attempts to read and minify .js input and write the minified output to the destination (falling back to cp on read error), then continues to optionally brotli-compress the result. This reduces payload size prior to compression with a small, simple minification step.
* Format web.js and disable XR capability checks
Apply consistent JS formatting (spacing, brace placement, object literal spacing, and minor whitespace cleanups) across platform/src/os/web/web.js. Replace the previous XR capability detection with a no-op (query_xr_capabilities now returns Promise.all([])) and remove the await call in load_deps so XR checks are not performed during startup. Also includes minor non-functional tweaks (timers, audio worklet messaging formatting, fetch call spacing, and various input/keyboard handler cleanups). Overall changes are primarily stylistic with the notable behavior change of disabling XR capability probing.
* Add WASM no-cache headers; remove web video arms
Set Cache-Control to "no-store, must-revalidate" (plus Pragma/Expires) for .wasm responses while keeping max-age=86400 for other assets; wire these into the HTTP response headers. Also remove the explicit VideoSource::InMemory and VideoSource::Filesystem match arms from the web platform code (they previously logged errors and emitted VideoDecodingError events).
