Watch subcommand fails with "bashunit::watch::run: command not found" (src/watch.sh missing from release build)

[jjshinobi]

Q	A
OS	macOS / Linux
Shell & version	bash 5.3
bashunit version	0.40.0

Summary

The watch subcommand is broken in the released build. The distributable
single-file bashunit contains the call site of bashunit::watch::run
(from src/main.sh) but not its definition (from src/watch.sh), so any
bashunit watch invocation calls an undefined function.

This affects the official release artifact itself, so it reproduces regardless of
install method — both the Homebrew build and the GitHub release download fail.
It is not a missing-dependency issue: it fails before inotifywait / fswatch
is ever used (both were installed when reproducing).

The function exists in source (src/watch.sh) but is missing from the built
binary, i.e. a build/bundling gap. This looks like the same class of issue fixed
in 0.31.0 ("bench command not working in standalone/installed bashunit (missing
benchmark.sh in build)").

Current behavior

/path/to/bashunit: line 13243: bashunit::watch::run: command not found

Evidence from the released binary — bashunit::watch::run is referenced exactly
once (the call site) and never defined:

$ grep -n 'bashunit::watch::run' bashunit
13243:  bashunit::watch::run "$path" "${extra_args[@]+"${extra_args[@]}"}"

$ grep -c 'function bashunit::watch::run' bashunit
0

For contrast, the polling helper used by test --watch
(bashunit::main::watch_loop) is bundled and works:

$ grep -c 'function bashunit::main::watch_loop' bashunit
1

Checked every release since the watch subcommand was introduced (0.34.0);
none define bashunit::watch::run in the release binary:

Version	function bashunit::watch::run definitions
0.40.0	0
0.39.1	0
0.38.0	0
0.37.0	0
0.36.0	0
0.35.0	0
0.34.0	0

How to reproduce

# Using the released binary (Homebrew or the GitHub release download)
bashunit watch
# or
bashunit watch tests/

Expected behavior

watch starts the file-event watcher (inotifywait on Linux / fswatch on
macOS) and re-runs tests when files change.

---

[Chemaclass]

Fixed in #736 (merged to main as 6ed8ad6). src/watch.sh is now bundled into the build, so bashunit watch resolves bashunit::watch::run instead of failing with "command not found". A build guard test plus a built-binary smoke test prevent regressions of this class.