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clawbot 5f3b745db2
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Run Dockerfile build, test and lint steps at nice -n 19 (closes #63)
The owner ordered every build, test and lint step in every Dockerfile to
run at the lowest priority. REPO_POLICIES.md gains that rule in one
line, and both Dockerfiles this repo hands out follow it: its own, and
the canonical Go example in REPO_POLICIES.md. Installs, dependency
downloads and the runtime entrypoint are left at normal priority.

Model: opus-5-5
2026-09-29 11:06:25 +00:00

59 lines
1.7 KiB
Docker

# Lint phase. The linter is invoked directly rather than through `make
# lint` or `script/lint`, which are themselves a docker build and would
# recurse into a daemon that does not exist in a build step.
#
# node 22-alpine, 2026-02-22
FROM node@sha256:e4bf2a82ad0a4037d28035ae71529873c069b13eb0455466ae0bc13363826e34 AS lint
WORKDIR /app
COPY script/ script/
COPY package.json yarn.lock ./
RUN script/bootstrap
COPY . .
RUN nice -n 19 yarn run prettier --check '**/*.md' --tab-width 4 --prose-wrap always
# Test phase, same shape and for the same reason.
#
# node 22-alpine, 2026-02-22
FROM node@sha256:e4bf2a82ad0a4037d28035ae71529873c069b13eb0455466ae0bc13363826e34 AS test
WORKDIR /app
COPY script/ script/
COPY package.json yarn.lock ./
RUN script/bootstrap
COPY . .
RUN nice -n 19 echo "No tests defined."
# Development environment, and the last stage: a plain `docker build .`
# names no target and so builds this one. Nothing is wanted from the two
# phases above; the copies are what make BuildKit build them first, so
# this image cannot be produced unless lint and test passed. A stage
# appended after this one would drop all three out of a plain build.
#
# node 22-alpine, 2026-02-22
FROM node@sha256:e4bf2a82ad0a4037d28035ae71529873c069b13eb0455466ae0bc13363826e34
WORKDIR /app
COPY --from=lint /app/package.json /dev/null
COPY --from=test /app/package.json /dev/null
# script/bootstrap installs all prerequisites. Manifests are copied
# first so that layer stays cached until dependencies change.
COPY script/ script/
COPY package.json yarn.lock ./
RUN script/bootstrap
COPY . .
# The version is computed on the host and passed in, because
# .dockerignore excludes .git.
ARG VERSION=dev
LABEL org.opencontainers.image.version="${VERSION}"