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Teffen Ellis 2c3d11a4c3 core: harden npm install against supply-chain attacks (#22245)
* core: add .npmrc baseline to block dependency lifecycle scripts

Set ignore-scripts=true at the repo root, plus engine-strict, save-exact,
audit, and prefer-offline. This neutralizes the dominant npm supply-chain
attack vector — postinstall scripts in transitive dependencies — at the
cost of requiring an explicit rebuild for the handful of packages that
legitimately need install scripts (esbuild, chromedriver, tree-sitter,
tree-sitter-json). The next commit wires that rebuild into the Makefile.

Co-Authored-By: Playpen Agent <279763771+playpen-agent@users.noreply.github.com>

* core: route node installs through make to retire website preinstall hook

Make docs-install depend on a new root-node-install so the root deps
are guaranteed before the website install runs, removing the need for
the website/preinstall lifecycle script. Rebuild the small audited list
of trusted packages (esbuild, chromedriver, tree-sitter, tree-sitter-json)
after the web install so ignore-scripts=true remains the only path that
needs maintenance. web/README documents the new workflow.

Co-Authored-By: Playpen Agent <279763771+playpen-agent@users.noreply.github.com>

* Clean up install scripts.

* Track .npmrc in CODEOWNERS

---------

Co-authored-by: Playpen Agent <279763771+playpen-agent@users.noreply.github.com>
2026-05-13 12:20:36 +00:00

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# Block lifecycle scripts (preinstall/install/postinstall/prepare) from dependencies.
# This neutralizes the dominant npm supply-chain attack vector.
#
# Packages that legitimately need a build step (e.g. esbuild, chromedriver, tree-sitter)
# must be rebuilt explicitly:
#
# npm rebuild --foreground-scripts esbuild chromedriver tree-sitter tree-sitter-json
ignore-scripts=true
# Fail fast if the active Node/npm doesn't match the "engines" field.
engine-strict=true
# Pin exact versions so `npm install <pkg>` writes "1.2.3" not "^1.2.3".
save-exact=true
# Surface CVE warnings during install; doesn't block.
audit=true
# Suppress funding banners.
fund=false