#!/bin/sh

# Build the OxygenFlow build image and write it as a root file system

# tarball for `flow rootfs import`. Run from any directory; the Oxygen

# projects are expected next to this repository (../oxygen, ../oxygenhub).

# Rebuild whenever a Cargo.lock or package-lock.json of those projects changes.

set -eu

here=$(cd "$(dirname "$0")" && pwd)

dev=$(cd "$here/../../.." && pwd)

out=${1:-$here/oxygenflow-build.tar}

NODE_VERSION=24.21.0

NODE_SHA256=fd8e59d5a511510f6a298afb548f18c7d2b1be404d8b4a27d94fbe49f56cb2d6

ZIG_VERSION=0.16.0

ZIG_SHA256=70e49664a74374b48b51e6f3fdfbf437f6395d42509050588bd49abe52ba3d00

rm -rf "$here/vendor"

cargo vendor --locked --versioned-dirs \

    --manifest-path "$dev/oxygen/Cargo.toml" \

    --sync "$dev/oxygenhub/Cargo.toml" \

    --sync "$dev/oxygenflow/Cargo.toml" \

    "$here/vendor" >/dev/null

# The image's crates as `NAME VERSION` lines (#101): at /opt/crates.txt in

# the image and beside the tarball, for `flow deps check --list` to read.

for m in "$here"/vendor/*/Cargo.toml; do

    awk -F'"' '/^\[package\]/{p=1;next} /^\[/{p=0} p&&/^name = /{n=$2} p&&/^version = /{v=$2} END{print n" "v}' "$m"

done | sort > "$here/crates.txt"

# npm packages of the two extensions, into a cache `npm ci --offline` reads.

rm -rf "${here:?}/npm-cache"

for e in oxygen-vscode oxygenhub-vscode; do

    tmp=$(mktemp -d)

    cp "$dev/$e/package.json" "$dev/$e/package-lock.json" "$tmp/"

    (cd "$tmp" && npm ci --cache "$here/npm-cache" --ignore-scripts --no-audit --no-fund >/dev/null)

    rm -rf "${tmp:?}"

done

rm -rf "${here:?}/npm-cache/_logs"

# Dependency recipes of the workspaces whose dependencies the image

# prebuilds (see the Dockerfile).

rm -rf "${here:?}/warm"

for ws in oxygenhub oxygen oxygenflow; do

    python3 "$here/recipe.py" "$dev/$ws" "$here/warm/$ws"

done

# Readable by any user: a job runs as its workspace's owner on the runner

# host, which differs between runners (oxygen#59: 0640 files from Earth's

# umask failed plex's dist job).

chmod -R a+rX "$here/vendor" "$here/npm-cache" "$here/warm" "$here/crates.txt"

docker build -q -t oxygenflow-build \

    --build-arg NODE_VERSION=$NODE_VERSION --build-arg NODE_SHA256=$NODE_SHA256 \

    --build-arg ZIG_VERSION=$ZIG_VERSION --build-arg ZIG_SHA256=$ZIG_SHA256 "$here"

id=$(docker create oxygenflow-build)

docker export "$id" -o "$out"

docker rm "$id" >/dev/null

cp "$here/crates.txt" "${out%.tar}.crates.txt"

rm -rf "${here:?}/vendor" "${here:?}/npm-cache" "${here:?}/warm" "${here:?}/crates.txt"

echo "$out"