Node.js 26.13.0 build recipe

github.com/nodejs/node (v26.13.0) at 18b32a3b1552e199a01f1a8d9fd64aa756d3b75b

Fetched once, with the network on, by the vendor step (Dockerfile.vendor) when the kit was made; the offline build uses the kit's vendored copies:

• git https://github.com/nodejs/node v26.13.0
• https://registry.npmjs.org/npm/-/npm-11.21.2.tgz

• Base imageubuntu:24.04@sha256:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852
• BuildKitmoby/buildkit:v0.31.2
  sha256:e0e67ea9c4bb07bdef683e29f70f3b623d1eb9c82274a9ec04e6bb0511449fb0
• Build methodsource-rebuild-c
• SOURCE_DATE_EPOCH1792774666 (2026-10-23T16:57:46Z)
• Target digest (linux/amd64)sha256:9eef4e36180646c91b9f0ccccc2ed60a341e1dd2f16b530ecb64bde999912943
• Target config digestsha256:1f067194e12f7751577288ba203856282c6617d8fea63f07aedc0dab42b35f6a
• Checksummed kit files104,538 (CHECKSUMS.sha256)

# GENERATED L-009 hermetic C build (--network=none, SBOM+SLSA-attestation-producing).
# Pinned bases; vendored source (in-tree deps) + extra build debs + runtime debs from Dockerfile.vendor.
FROM ubuntu:24.04@sha256:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852 AS cbuild
# dpkg-install the vendored EXTRA build debs (pkg-config/libssl-dev/...) — gcc/make are in the builder.
RUN --mount=type=bind,source=vendored/build-debs,target=/tmp/bdebs \
    set --; for f in /tmp/bdebs/*.deb; do [ -e "$f" ] && set -- "$@" "$f"; done; \
    for pass in 1 2 3 4 5; do [ $# -eq 0 ] || dpkg -i --skip-same-version "$@" >/dev/null 2>&1 && break; done; \
    dpkg --configure -a && bad= && for d in "$@"; do p=$(dpkg-deb -f "$d" Package) v=$(dpkg-deb -f "$d" Version); \
      case "$(dpkg-query -W -f='${Version} ${db:Status-Abbrev}' "$p" 2>/dev/null)" in "$v ii"*) ;; *) bad="$bad $p=$v" ;; esac; done && \
    { [ -z "$bad" ] || { echo "vendored debs not installed at their vendored version:$bad" >&2; false; }; }
WORKDIR /src
COPY vendored/nodejs-src/ .
ARG SOURCE_DATE_EPOCH=1792774666
ENV SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH}
RUN ./configure --prefix=/opt/node
RUN make -j"$(nproc)"
RUN make install
RUN /opt/node/bin/node -v | grep -qx v26.13.0 && /opt/node/bin/node /opt/node/lib/node_modules/npm/bin/npm-cli.js -v | grep -qx 11.21.2
RUN /opt/node/bin/node -e "const c=require('crypto');if(c.createHash('sha256').update('readystack').digest('hex').length!==64)process.exit(1);if(new Intl.DateTimeFormat('de-DE',{month:'long'}).format(new Date(Date.UTC(2026,10,8)))!=='November')process.exit(1)"
FROM ubuntu:24.04@sha256:fe81560990fae86dc4743202b2cb4d3df98d0bcf949173cecef15ce1127ef852
ENV DEBIAN_FRONTEND=noninteractive PATH=/home/node/.npm-global/bin:/opt/node/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin NPM_CONFIG_PREFIX=/home/node/.npm-global LANG=C.UTF-8
RUN --mount=type=bind,source=vendored/debs,target=/tmp/debs \
    set --; for f in /tmp/debs/*.deb; do [ -e "$f" ] && set -- "$@" "$f"; done; \
    for pass in 1 2 3 4 5; do [ $# -eq 0 ] || dpkg -i --skip-same-version "$@" >/dev/null 2>&1 && break; done; \

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#!/usr/bin/env bash
# =============================================================================
# ReadyStack — offline reproducible rebuild.
#
# Rebuilds this product's image from THIS ARCHIVE ALONE, with no network access
# of any kind, and prints the resulting linux/amd64 image-manifest digest.
# Run ./VERIFY_OFFLINE.sh afterwards to assert it equals the published digest.
#
# Requirements: linux/amd64 Docker host, docker buildx >= 0.30, jq, tar.
# No git, no registry access, no additional tooling.
#
#   ./BUILD_OFFLINE.sh                the rebuild (OCI image + a docker-loadable copy)
#   ./BUILD_OFFLINE.sh --provenance   the same rebuild with SLSA v1 build provenance (mode=max) attached to the OCI
#                                     image, generated by BuildKit, not by any build step. Your build platform runs
#                                     the build and signs that provenance with a key the build steps cannot reach
#                                     (see REBUILD.md). Any SLSA build level is your platform's; this archive claims
#                                     none. The image digest is the same either way.
# =============================================================================
set -euo pipefail
PROVENANCE=0
for arg in "$@"; do
  case "$arg" in
    --provenance) PROVENANCE=1 ;;
    -h|--help) sed -n '2,20p' "$0"; exit 0 ;;

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