Speed up deploy archive creation

[FarhanAliRaza]

Split out of #7054 per @masenf's request to land the deploy speedups as separate, individually measured patches. This one only touches archive creation.

Changes

• Resolve files_to_exclude to (st_dev, st_ino) pairs once, instead of calling Path.samefile() for every walked file and directory against every exclusion (and exists() on each exclusion every time).
• Store the pre-compressed .gz / .br / .zst frontend sidecars in frontend.zip instead of deflating them a second time. Everything else, including every backend entry, stays ZIP_DEFLATED.
• Tests cover the stored/deflated choice per archive, exclusion by file identity (hard-link alias), and exclusion through a directory symlink.

Measurement

build.zip_app() on an already-built .web (716 frontend files), 9 iterations × 2 processes, median:

	main	this PR
frontend.zip	0.237 s	0.184 s (−22%)
backend.zip	8.8 ms	8.4 ms
frontend.zip size	2,746,942 B	2,749,455 B (+0.09%)

The whole zip_duration phase of an export on this app is ~0.25 s, so this is a small absolute win; it is also the simplest patch in the set.

Measurement setup

Five-page app from the blank template (Radix Themes + Tailwind v4 plugins), Linux x86_64, 4 vCPU, Python 3.14, Node 22.22, npm 10.9, bun 1.4.2. Each run is a fresh interpreter calling reflex.utils.export.export() the same way reflex export does; durations are the phase timings the export already reports to telemetry (compile includes the dependency install). Medians of 3 runs unless noted. Vite dominates every export (~6.5 s); these numbers isolate the part this PR touches.

Type of change

• Performance improvement (non-breaking)

Checklist

• Tests added for the change; the full tests/units suite passes locally except the 14 reflex_bench/drivers/test_browser.py cases that need a Playwright browser launch, which fail identically on untouched main in this sandbox
• ruff check, ruff format --check, codespell, and pyright reflex tests pass locally
• News fragment added for every package touched

https://claude.ai/code/session_018nWB9r2HcC5tkT72UxWgGj

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Generated by Claude Code

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-06T18:21:07.517158Z	cfe56da	PR opened

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[cubic-dev-ai]

No issues found across 3 files

_{Turn on auto-fix | Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

[Medium risk] Optimizes archive creation with compression and exclusion logic.

The PR appears safe to merge; no actionable defects or repository-rule violations were found.

What we checked:

• Backend files stay compressed: _zip_compress_type selects ZIP_STORED only for frontend entries with the listed suffixes. Backend entries still use ZIP_DEFLATED.

Summary

Speeds up deployment archives by resolving excluded file identities once and storing precompressed frontend assets without compressing them again.

• Backend entries and other frontend files remain deflated.
• Adds tests for compression choices, hard-link aliases, directory symlinks, and missing exclusions.
• No actionable issues were found. Tests were inspected, not run.

_{Reviews (1) · Last reviewed commit: "Speed up deploy archive creation"}

[codspeed]

Merging this PR will improve performance by 4.67%

⚡ 1 improved benchmark
✅ 149 untouched benchmarks
⏩ 18 skipped benchmarks¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	test_hydration_metadata[20]	217.1 µs	207.4 µs	+4.67%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing farhan/deploy-zip-archives (cfe56da) with main (8b97272)²}

Footnotes

1. 18 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (62a56ba) during the generation of this report, so 8b97272 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩