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The sentinel was written to shared/_reload_sentinel.py but shared/ is volume-mounted as root:root, so appuser can't create files there. Move sentinel to /app/_reload_sentinel.py which is owned by appuser and still under Hypercorn's --reload watch path. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
"""Watch non-Python files and trigger Hypercorn reload.
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Hypercorn --reload only watches .py files. This script watches .sx,
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.sx, .js, and .css files and touches a sentinel .py file when they
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change, causing Hypercorn to restart.
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Usage (from entrypoint.sh, before exec hypercorn):
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python3 -m shared.dev_watcher &
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"""
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import os
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import time
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import sys
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WATCH_EXTENSIONS = {".sx", ".sx", ".js", ".css"}
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SENTINEL = "/app/_reload_sentinel.py"
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POLL_INTERVAL = 1.5 # seconds
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def _collect_mtimes(roots):
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mtimes = {}
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for root in roots:
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for dirpath, _dirs, files in os.walk(root):
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for fn in files:
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ext = os.path.splitext(fn)[1]
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if ext in WATCH_EXTENSIONS:
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path = os.path.join(dirpath, fn)
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try:
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mtimes[path] = os.path.getmtime(path)
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except OSError:
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pass
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return mtimes
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def main():
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# Watch /app/shared and /app/<service>/sx plus static dirs
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roots = []
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for entry in os.listdir("/app"):
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full = os.path.join("/app", entry)
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if os.path.isdir(full):
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roots.append(full)
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if not roots:
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roots = ["/app"]
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# Ensure sentinel exists
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if not os.path.exists(SENTINEL):
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with open(SENTINEL, "w") as f:
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f.write("# reload sentinel\n")
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prev = _collect_mtimes(roots)
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while True:
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time.sleep(POLL_INTERVAL)
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curr = _collect_mtimes(roots)
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changed = []
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for path, mtime in curr.items():
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if path not in prev or prev[path] != mtime:
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changed.append(path)
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if changed:
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names = ", ".join(os.path.basename(p) for p in changed[:3])
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if len(changed) > 3:
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names += f" (+{len(changed) - 3} more)"
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print(f"[dev_watcher] Changed: {names} — triggering reload",
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flush=True)
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os.utime(SENTINEL, None)
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prev = curr
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if __name__ == "__main__":
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main()
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