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monyarmmonyarm
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refactor(scripts): Migrate scripts from nix-blockchain-development
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‎scripts/ci-all.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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nix="$(if tty -s; then echo nom; else echo nix; fi)"
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set -x
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nix flake check
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$nix build -L --json --no-link --keep-going \
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.#devShells.{x86_64-linux,{x86_64,aarch64}-darwin}.default

‎scripts/ci-matrix.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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root_dir="$(git rev-parse --show-toplevel)"
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# shellcheck source=./nix-eval-jobs.sh
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source "$root_dir/scripts/nix-eval-jobs.sh"
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eval_packages_to_json() {
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flake_attr_pre="${1:-checks}"
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flake_attr_post="${2:-}"
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cachix_url="https://${CACHIX_CACHE}.cachix.org"
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nix_eval_for_all_systems "$flake_attr_pre" "$flake_attr_post" \
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| jq -sr '{
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"x86_64-linux": "ubuntu-latest",
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"x86_64-darwin": "macos-14",
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"aarch64-darwin": "macos-14"
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} as $system_to_gh_platform
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|
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map({
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package: .attr,
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attrPath: "'"${flake_attr_pre}".'\(.system).\(.attr)",
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allowedToFail: false,
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isCached,
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system,
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cache_url: .outputs.out
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| "'"$cachix_url"'/\(match("^\/nix\/store\/([^-]+)-").captures[0].string).narinfo",
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os: $system_to_gh_platform[.system]
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})
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| sort_by(.package | ascii_downcase)
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'
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}
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save_gh_ci_matrix() {
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packages_to_build=$(echo "$packages" | jq -c '. | map(select(.isCached | not))')
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matrix='{"include":'"$packages_to_build"'}'
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res_path=''
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if [ "${IS_INITIAL:-true}" = "true" ]; then
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res_path='matrix-pre.json'
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else
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res_path='matrix-post.json'
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fi
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echo "$matrix" > "$res_path"
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echo "matrix=$matrix" >> "${GITHUB_OUTPUT:-${result_dir}/gh-output.env}"
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}
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convert_nix_eval_to_table_summary_json() {
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is_initial="${IS_INITIAL:-true}"
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echo "$packages" \
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| jq '
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def getStatus(pkg; key):
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if (pkg | has(key))
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then if pkg[key].isCached
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then "[✅ cached](\(pkg[key].cache_url))"
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else if "'$is_initial'" == "true"
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then "⏳ building..."
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else "❌ build failed" end
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end else "🚫 not supported" end;
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group_by(.package)
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| map(
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. | INDEX(.system) as $pkg
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| .[0].package as $name
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| {
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package: $name,
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"x86_64-linux": getStatus($pkg; "x86_64-linux"),
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"x86_64-darwin": getStatus($pkg; "x86_64-darwin"),
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"aarch64-darwin": getStatus($pkg; "aarch64-darwin"),
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}
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)
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| sort_by(.package)'
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}
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printTableForCacheStatus() {
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packages="$(eval_packages_to_json "$@")"
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save_gh_ci_matrix
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{
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echo "Thanks for your Pull Request!"
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echo
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echo "Below you will find a summary of the cachix status of each package, for each supported platform."
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echo
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# shellcheck disable=SC2016
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echo '| package | `x86_64-linux` | `x86_64-darwin` | `aarch64-darwin` |'
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echo '| ------- | -------------- | --------------- | ---------------- |'
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convert_nix_eval_to_table_summary_json | jq -r '
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.[] | "| `\(.package)` | \(.["x86_64-linux"]) | \(.["x86_64-darwin"]) | \(.["aarch64-darwin"]) |"
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'
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echo
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} > comment.md
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}
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printTableForCacheStatus "$@"

‎scripts/ci.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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error() {
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echo "Error: " "$@" >&2
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exit 1
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}
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nix="$(if tty -s; then echo nom; else echo nix; fi)"
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get_platform() {
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case "$(uname -s).$(uname -m)" in
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Linux.x86_64)
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system=x86_64-linux
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;;
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Linux.i?86)
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system=i686-linux
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;;
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Linux.aarch64)
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system=aarch64-linux
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;;
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Linux.armv6l_linux)
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system=armv6l-linux
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;;
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Linux.armv7l_linux)
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system=armv7l-linux
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;;
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Darwin.x86_64)
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system=x86_64-darwin
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;;
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Darwin.arm64|Darwin.aarch64)
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system=aarch64-darwin
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;;
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*) error "sorry, there is no binary distribution of Nix for your platform";;
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esac
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echo "$system"
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}
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system="$(get_platform)"
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set -x
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nix flake check
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$nix build --json --print-build-logs ".#devShells.$system.default"

‎scripts/nix-eval-jobs.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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root_dir="$(git rev-parse --show-toplevel)"
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result_dir="$root_dir/.result"
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gc_roots_dir="$result_dir/gc-roots"
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# shellcheck source=./system-info.sh
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source "$root_dir/scripts/system-info.sh"
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create_result_dirs() {
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mkdir -p "$result_dir" "$gc_roots_dir"
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}
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nix_eval_jobs() {
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flake_attr="$1"
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get_platform
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get_available_memory_mb
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get_nix_eval_worker_count
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{
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(
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set -x
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nix-eval-jobs \
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--quiet \
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--option warn-dirty false \
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--check-cache-status \
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--gc-roots-dir "$gc_roots_dir" \
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--workers "$max_workers" \
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--max-memory-size "$max_memory_mb" \
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--flake "$root_dir#$flake_attr"
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) \
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| tee /dev/fd/3 \
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| stdbuf -i0 -o0 -e0 jq --color-output -c '{ attr, isCached, out: .outputs.out }' > /dev/stderr
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} 3>&1 2> >(
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grep -vP "(SQLite database|warning: unknown setting 'allowed-users'|warning: unknown setting 'trusted-users')" \
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>&2
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)
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}
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nix_eval_for_all_systems() {
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flake_pre="$1"
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flake_post="${2:+.$2}"
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systems=( {x86_64-linux,{x86_64,aarch64}-darwin} )
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for system in "${systems[@]}"; do
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nix_eval_jobs "${flake_pre}.${system}${flake_post}"
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done
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}

‎scripts/system-info.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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get_platform() {
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case "$(uname -s).$(uname -m)" in
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Linux.x86_64)
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export system=x86_64-linux
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export is_linux=true
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export is_darwin=false
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;;
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Linux.i?86)
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export system=i686-linux
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export is_linux=true
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export is_darwin=false
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;;
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Linux.aarch64)
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export system=aarch64-linux
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export is_linux=true
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export is_darwin=false
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;;
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Linux.armv6l_linux)
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export system=armv6l-linux
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export is_linux=true
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export is_darwin=false
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;;
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Linux.armv7l_linux)
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export system=armv7l-linux
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export is_linux=true
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export is_darwin=false
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;;
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Darwin.x86_64)
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export system=x86_64-darwin
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export is_linux=false
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export is_darwin=true
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;;
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Darwin.arm64|Darwin.aarch64)
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system=aarch64-darwin
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export is_linux=false
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export is_darwin=true
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;;
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*) error "sorry, there is no binary distribution of Nix for your platform";;
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esac
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}
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get_nix_eval_worker_count() {
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if [[ -z "${MAX_WORKERS:-}" ]]; then
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available_parallelism="$(nproc)"
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export max_workers="$((available_parallelism < 8 ? available_parallelism : 8))"
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else
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export max_workers="$MAX_WORKERS"
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fi
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}
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get_available_memory_mb() {
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if [ "$is_darwin" = 'true' ]; then
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free_pages="$(vm_stat | grep 'Pages free:' | tr -s ' ' | cut -d ' ' -f 3 | tr -d '.')"
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inactive_pages="$(vm_stat | grep 'Pages inactive:' | tr -s ' ' | cut -d ' ' -f 3 | tr -d '.')"
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pages="$((free_pages + inactive_pages))"
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page_size="$(pagesize)"
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export max_memory_mb="${MAX_MEMORY:-$(((pages * page_size) / 1024 / 1024 ))}"
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else
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free="$(< /proc/meminfo grep MemFree | tr -s ' ' | cut -d ' ' -f 2)"
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cached="$(< /proc/meminfo grep Cached | grep -v SwapCached | tr -s ' ' | cut -d ' ' -f 2)"
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buffers="$(< /proc/meminfo grep Buffers | tr -s ' ' | cut -d ' ' -f 2)"
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shmem="$(< /proc/meminfo grep Shmem: | tr -s ' ' | cut -d ' ' -f 2)"
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export max_memory_mb="${MAX_MEMORY:-$(((free + cached + buffers + shmem) / 1024 ))}"
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fi
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}

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