200 lines
9.8 KiB
Python
200 lines
9.8 KiB
Python
"""Build the content-addressed browser shell served by the dashboard."""
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from __future__ import annotations
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import gzip
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import hashlib
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import re
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from dataclasses import dataclass
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from pathlib import Path
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import rjsmin
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SCRIPT_TAG = re.compile(r'^<script src="(static/[^"?]+\.js)"></script>$', re.MULTILINE)
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COMMONJS_EXPORT_LINE = re.compile(
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rb"^\s*if \(typeof module[^\n]+module\.exports[^\n]+;\s*$(?!\n\s*else)", re.MULTILINE
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)
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COMMONJS_BROWSER_BRANCH = re.compile(
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rb"^\s*if \(typeof module[^\n]+module\.exports[^\n]+;\s*\n\s*else\s*\{",
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re.MULTILINE,
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)
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WORKER_RUNTIME_SOURCE = "static/background-issue-sync.js"
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FEATURE_SOURCES = {
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"comment-actions": ("static/comment-actions.js",),
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"issue-capture": (
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"static/voice-transcript-store.js", "static/voice-issue-capture.js", "static/create-issue-sheet.js", "static/mobile-create-issue-nav.js", "static/update-follow-up.js", "static/shared-image-capture.js",
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),
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"pull-workflow": ("static/pull-sheet.js", "static/review-sheet.js", "static/release-receipt.js"),
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"push-notifications": ("static/push-notifications.js",),
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"sign-out": ("static/private-data-inventory.js", "static/sign-out-review.js"),
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"device-setup": (
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"static/install-app.js", "static/private-data-inventory.js", "static/private-device-data.js",
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"static/device-storage.js", "static/mobile-device-setup.js",
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),
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"security-center": ("static/security-center.js",),
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"planning": (
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"static/plan-today.js", "static/plan-today-readiness.js",
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"static/plan-today-preview.js", "static/today-rollover.js", "static/today-readiness.js", "static/following.js",
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"static/tomorrow-plan.js", "static/week-calendar.js", "static/week-calendar-import.js", "static/week-plan.js", "static/today-week-reschedule.js", "static/search-week-plan.js", "static/search-batch-plan.js", "static/agenda-session-launcher.js", "static/mobile-plan-today-nav.js",
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),
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"today-timer": (
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"static/mobile-app-badge.js", "static/conversation.js", "static/widgets.js", "static/voice-transcript-store.js", "static/voice-conversation-capture.js", "static/mobile-launch.js", "static/mobile-insights.js", "static/mobile-app-shortcuts.js", "static/mobile-find-work-nav.js", "static/mobile-pull-refresh.js", "static/live-data-status.js", "static/mobile-composer-viewport.js",
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"static/today-completion.js", "static/card-planning.js", "static/work-detail-position.js", "static/work-route.js", "static/commands.js", "static/saved-searches.js", "static/task-overlay-history.js", "static/search-preview.js", "static/mobile-search-preview-nav.js", "static/search-reply-draft-store.js", "static/conversation-reply-draft-store.js", "static/conversation-photo-drafts.js", "static/search-defer.js", "static/mobile-search-viewport.js", "static/agenda-replan.js", "static/agenda-calendar.js", "static/my-work.js", "static/protect-today.js", "static/mobile-today-command-bar.js", "static/mobile-task-dock.js", "static/mobile-first-task.js", "static/mobile-work-entry.js", "static/mobile-queue-launcher.js", "static/mobile-delivery-recovery.js", "static/mobile-start-day.js", "static/update-triage-session.js", "static/update-review-handoff.js", "static/update-triage-launcher.js", "static/update-triage-gesture.js", "static/notification-undo.js", "static/today-timer.js", "static/today-break.js", "static/today-progress.js", "static/today-lock-screen.js", "static/today-session-sync.js", "static/today-recap.js", "static/today-wrap-up.js", "static/today-summary.js", "static/today-handoff.js",
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"static/later-work.js", "static/detail-defer.js", "static/later-picker.js", "static/drafts.js", "static/unfiled-captures.js", "static/unfiled-draft-sync.js",
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"static/assign-and-start.js", "static/filed-claim.js", "static/queue-today.js", "static/create-and-start.js",
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"static/draft-filing-session.js", "static/draft-capacity-dialog.js", "static/work-selection.js",
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"static/today-work.js", "static/today-sync.js", "static/pick-work.js", "static/batch-find-work.js",
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"static/mention-composer.js", "static/issue-evidence-review.js", "static/issue-evidence-editor.js",
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"static/issue-attachment.js", "static/checklist-conflict.js", "static/issue-outbox.js", "static/authored-outbox.js", "static/issue-sheet.js", "static/mobile-issue-detail-nav.js", "static/issue-filing-review.js", "static/issue-filing-receipt.js",
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),
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}
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CACHE_DECLARATION = re.compile(
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r"const CACHE = 'stackchain-dashboard-shell-(?:v\d+|[0-9a-f]{16})';"
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)
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@dataclass(frozen=True)
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class RuntimeBundle:
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runtime_bytes: bytes
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runtime_gzip_bytes: bytes
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runtime_digest: str
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runtime_name: str
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@dataclass(frozen=True)
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class FrontendBuild:
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dashboard_html: str
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runtime_bytes: bytes
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runtime_gzip_bytes: bytes
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runtime_digest: str
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runtime_name: str
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shell_digest: str
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page_sources: tuple[str, ...]
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feature_bundles: dict[str, RuntimeBundle]
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service_worker_source: str
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def _bundle(frontend_dir: Path, sources: tuple[str, ...]) -> bytes:
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chunks = []
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for source in sources:
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path = frontend_dir / source.removeprefix("static/")
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chunks.append(f"/* {source} */\n".encode() + path.read_bytes() + b"\n;\n")
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source = b"".join(chunks)
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# Node-only export shims support source-level unit tests but are unreachable
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# in the browser. Strip the simple one-line form from shipped bundles.
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source = COMMONJS_BROWSER_BRANCH.sub(b"{", source)
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source = COMMONJS_EXPORT_LINE.sub(b"", source)
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revision = hashlib.sha256(source).hexdigest()
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minified = rjsmin.jsmin(source.decode()).encode()
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return minified + f';"source-sha256:{revision}";'.encode()
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def _runtime(frontend_dir: Path, sources: tuple[str, ...], prefix: str) -> RuntimeBundle:
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content = _bundle(frontend_dir, sources)
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digest = hashlib.sha256(content).hexdigest()[:16]
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return RuntimeBundle(
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runtime_bytes=content,
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runtime_gzip_bytes=gzip.compress(content, compresslevel=9, mtime=0),
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runtime_digest=digest,
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runtime_name=f"{prefix}-{digest}.js",
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)
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def build_frontend(frontend_dir: Path) -> FrontendBuild:
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"""Return one internally consistent HTML, runtime, and offline-worker build."""
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source_html = (frontend_dir / "index.html").read_text()
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sources = tuple(SCRIPT_TAG.findall(source_html))
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if not sources:
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raise ValueError("dashboard entry document has no page scripts")
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feature_source_names = {source for group in FEATURE_SOURCES.values() for source in group}
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core_sources = tuple(source for source in sources if source not in feature_source_names)
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core = _runtime(frontend_dir, core_sources, "runtime")
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feature_bundles = {
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name: _runtime(frontend_dir, feature_sources, f"feature-{name}")
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for name, feature_sources in FEATURE_SOURCES.items()
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}
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dashboard_html = SCRIPT_TAG.sub("", source_html)
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feature_metadata = "\n".join(
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f'<meta name="stackchain-feature-{name}" content="{bundle.runtime_name}">'
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for name, bundle in feature_bundles.items()
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)
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workspace_preload = (
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f'<link rel="preload" as="script" '
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f'href="{feature_bundles["today-timer"].runtime_name}">'
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)
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dashboard_html = dashboard_html.replace(
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"</head>", feature_metadata + "\n" + workspace_preload + "\n</head>"
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)
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dashboard_html = dashboard_html.replace(
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"</body>",
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f'<script src="{core.runtime_name}"></script>\n</body>',
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)
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worker = (frontend_dir / "service-worker.js").read_text()
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for source in sources:
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if source != WORKER_RUNTIME_SOURCE:
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worker = worker.replace(f" BASE + '{source}',\n", "")
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optional_features = feature_bundles
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worker = worker.replace(
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" BASE + 'static/dashboard.css',\n",
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" BASE + 'static/dashboard.css',\n"
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+ f" BASE + '{core.runtime_name}',\n",
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)
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worker = worker.replace(
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"const OPTIONAL_FEATURES = [\n",
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"const OPTIONAL_FEATURES = [\n"
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+ "".join(f" BASE + '{bundle.runtime_name}',\n" for bundle in optional_features.values()),
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)
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worker = CACHE_DECLARATION.sub(
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"const CACHE = 'stackchain-dashboard-shell-BUILD';", worker, count=1
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)
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shell_hasher = hashlib.sha256()
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shell_inputs = (
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("dashboard.html", dashboard_html.encode()),
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(core.runtime_name, core.runtime_bytes),
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*((bundle.runtime_name, bundle.runtime_bytes) for bundle in feature_bundles.values()),
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("static/dashboard.css", (frontend_dir / "dashboard.css").read_bytes()),
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("manifest.webmanifest", (frontend_dir / "manifest.webmanifest").read_bytes()),
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(
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"static/icons/stackchain-192.png",
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(frontend_dir / "icons/stackchain-192.png").read_bytes(),
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),
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(
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"static/icons/stackchain-512.png",
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(frontend_dir / "icons/stackchain-512.png").read_bytes(),
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),
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(
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WORKER_RUNTIME_SOURCE,
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(
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frontend_dir / WORKER_RUNTIME_SOURCE.removeprefix("static/")
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).read_bytes(),
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),
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("service-worker.js", worker.encode()),
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)
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for name, content in shell_inputs:
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shell_hasher.update(len(name).to_bytes(4, "big"))
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shell_hasher.update(name.encode())
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shell_hasher.update(len(content).to_bytes(8, "big"))
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shell_hasher.update(content)
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shell_digest = shell_hasher.hexdigest()[:16]
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worker = worker.replace(
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"const CACHE = 'stackchain-dashboard-shell-BUILD';",
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f"const CACHE = 'stackchain-dashboard-shell-{shell_digest}';",
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1,
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)
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return FrontendBuild(
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dashboard_html=dashboard_html,
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runtime_bytes=core.runtime_bytes,
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runtime_gzip_bytes=core.runtime_gzip_bytes,
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runtime_digest=core.runtime_digest,
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runtime_name=core.runtime_name,
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shell_digest=shell_digest,
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page_sources=sources,
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feature_bundles=feature_bundles,
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service_worker_source=worker,
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)
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