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bd72781482 |
Install one Playwright tree, and notice when a container has two
Setup installed `playwright@latest` and `@playwright/cli@latest` together. Verified on a real container, that produces a tree that looks right and is broken: `@playwright/cli@0.1.18` pins `playwright-core@1.63.0-alpha`, npm hoists it, and `playwright@latest` (1.62.1) nests its own `playwright-core@1.62.1` beside it. The two cores want different browser revisions. The browser step runs the *resolved* — hoisted — CLI, so it downloads chromium-1237. Every script Claude writes says `require("playwright")`, gets the nested 1.62.1, and dies with: Executable doesn't exist at …/chromium_headless_shell-1234/… while the pane reports a browser installed, because one is. This is deterministic, not bad luck: every container set up through the pane lands in it. So the viewer package is installed first, and the `playwright` version installed after it is the one that package pins — read from the manifest npm just wrote, falling back to `@latest` only if it cannot be read. One core, one browser revision, both halves agreeing. Re-running "Set up Playwright" repairs an already-split tree. Detection now asks the question directly rather than listing a cache: it asks each resolved copy for `chromium.executablePath()` and whether that file exists — the viewer's copy *and* the one `require("playwright")` returns, since those are routinely different. `needs_browser()` covers "installed but not launchable", and the pane names both halves instead of saying "install a browser" over a cache that visibly has one. An absent field is "the probe didn't answer", never "skewed": containers predating these fields must not be told their browsers are wrong. The Rust side gets that from Option; the TypeScript mirror needed `!= null`, which an existing test caught. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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4fdfed7955 |
Bake the browser's runtime libraries into the base image
Build App / compute-version (pull_request) Successful in 4s
Build App / build-macos (pull_request) Successful in 2m28s
Build App / build-windows (pull_request) Successful in 5m13s
Build Container / build-container (pull_request) Successful in 13m11s
Build App / build-linux (pull_request) Successful in 6m53s
Build App / create-tag (pull_request) Skipped
Build App / sync-to-github (pull_request) Skipped
`npx playwright install chromium` downloaded ~150 MB of browser that then died with "error while loading shared libraries: libglib-2.0.so.0" — verified, not inferred, against the current image. The image shipped none of Chromium's shared libraries, which is why `apt install google-chrome-stable` looked like the cure: apt was quietly installing the same set as Chrome's own dependencies. Installing them at runtime instead converges on the worst possible state. The libraries land in the container's writable layer, so they are re-paid after every Reset and *lost* on base-image migration, which replays apt from a manifest. The browsers ride in ~/.cache/ms-playwright, inside the home volume, and survive both — leaving a 400 MB browser present with its libraries gone. So the libraries are baked and the browsers are not: each half now lives where it already persists. The layer runs `npx --yes playwright@latest install-deps chromium` rather than a hand-written apt list. Ubuntu 24.04's 64-bit-time_t transition renamed a swathe of these packages (libasound2t64, libatk1.0-0t64, libglib2.0-0t64, …) and a new Chromium dependency would drift straight back into the launch failure this exists to prevent; letting Playwright name its own dependencies is self-maintaining. It sits immediately after Node — npx is its only prerequisite — and well above the shim COPYs, so editing a shim does not re-run it. The `--dry-run` that follows is a build-time assertion, not decoration: on a platform Playwright has no list for, `install-deps` prints a warning and returns having installed **nothing, with exit status 0**. Without the assertion that ships a broken image behind a clean build log. Measured, on a build of this file with the layer applied over an otherwise identical image: +99 packages, +334 MiB unpacked and +119 MiB compressed (2950 → 3284 MiB, 759 → 878 MiB). Two thirds of that is not reachable by trimming — libgbm1, which Chromium needs, pulls mesa-libgallium, which pulls libllvm20. A chromium-only apt list measures 247 MiB against install-deps' 341 MiB; the ~94 MiB difference is xvfb and the CJK/emoji fonts, kept because the base ships no fonts at all and every page this feature exists to display would otherwise render as tofu. Verified on real builds, both architectures: a `--platform linux/arm64` build of this file installs the same 99 packages and passes the same assertion. On the new amd64 image, `playwright install chromium` with no `--with-deps` and no `install-deps` launches headless Chromium 151.0.7922.34 and loads a page; on the old image the identical script fails on libglib-2.0.so.0. `install.rs` no longer runs `install-deps` unconditionally — that would be a minutes-long apt run for nothing on a current image. It asks `install-deps --dry-run` first and skips the install when everything is present, saying which of the two happened on the progress stream. The check is Playwright's rather than a probe of our own for library names, so check and fix cannot disagree about what the dependency set is. Note that `--dry-run` exits 0 both when everything is installed and when Playwright has no list for the platform, so the verdict is read from its output. Containers on older images stay the normal case until people migrate, and they still work: on such an image the simulation cannot even resolve the package names (the index is cleaned in every base image), which reports as "couldn't tell" and installs — the right answer. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KSP2KNPhuWKQ4DL5TZEn3k |
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a5bcc462a7 |
Browser view: find every Playwright, and set one up in two clicks
Build App / compute-version (pull_request) Successful in 14s
Build App / build-macos (pull_request) Successful in 2m30s
Build App / build-windows (pull_request) Successful in 5m18s
Build App / build-linux (pull_request) Successful in 6m42s
Build App / create-tag (pull_request) Skipped
Build App / sync-to-github (pull_request) Skipped
Detection missed the npx cache, so a Playwright installed through Claude
Code's MCP setup (`npx @playwright/mcp@latest`, which unpacks into
~/.npm/_npx/<hash>/node_modules and no node_modules at all) was invisible.
The probe now globs that cache alongside the existing roots and reports
every root it consulted.
It also read `has_bind` off whichever manifest resolved first. Verified
that npm does not hoist for global installs and that the `playwright`
wrapper ships no types/types.d.ts, so `npm i -g playwright` made the pane
call a current build "predates browser.bind()". The probe now hops from
the wrapper to its nested playwright-core.
The messages no longer offer `@playwright/mcp` as a way through setup: it
bundles a playwright-core that binds but never `@playwright/cli`, so that
route could not have worked. It is named only for what it does do.
New `install.rs` + two commands do the setup, streaming on the existing
`container-progress` event and re-probing on success:
* playwright + @playwright/cli into /workspace as `claude`, --no-save.
/workspace is not a bind mount (projects mount at
/workspace/{mount_name}), so nothing of the user's is touched, no sudo
is needed, and Node resolves it from scripts in the project.
* A browser, as its own action with the size stated first: apt libraries
as root, then the download, then a real headless launch to prove it
works. The base image ships none of Chromium's shared libraries, which
is why a download could succeed and the browser still not start.
Chromium and the Chrome channel are both offered — @playwright/mcp
asks for `chrome` specifically. A certificate failure is reported as a
container trust-store problem rather than a broken install.
Installing is always user-initiated; opening the tab only probes.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KSP2KNPhuWKQ4DL5TZEn3k
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