mirror of
https://github.com/discourse/discourse.git
synced 2025-05-23 17:41:19 +08:00
106 lines
2.8 KiB
Ruby
Executable File
106 lines
2.8 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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# frozen_string_literal: true
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# rubocop:disable Discourse/NoChdir
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require "fileutils"
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require "tempfile"
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require "open3"
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require "json"
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BUILD_INFO_FILE = "dist/BUILD_INFO.json"
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Dir.chdir("#{__dir__}/../app/assets/javascripts/discourse")
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def capture(*args)
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output, status = Open3.capture2(*args)
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raise "Command failed: #{args.inspect}" if status != 0
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output
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end
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# Returns a git tree-hash representing the current state of Discourse core.
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# If the working directory is clean, it will match the tree hash (note: different to the commit hash) of the HEAD commit.
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def core_tree_hash
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Tempfile.create do |f|
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f.close
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git_dir = capture("git", "rev-parse", "--git-dir").strip
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FileUtils.cp "#{git_dir}/index", f.path
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env = { "GIT_INDEX_FILE" => f.path }
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system(env, "git", "add", "-A", exception: true)
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return capture(env, "git", "write-tree").strip
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end
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end
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def node_heap_size_limit
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capture("node", "-e", "console.log(v8.getHeapStatistics().heap_size_limit/1024/1024)").to_f
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end
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def low_memory_environment?
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node_heap_size_limit < 2048
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end
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def resolved_ember_env
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ENV["EMBER_ENV"] || "production"
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end
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def build_info
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{ "ember_env" => resolved_ember_env, "core_tree_hash" => core_tree_hash }
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end
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def existing_core_build_usable?
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if !File.exist?(BUILD_INFO_FILE)
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STDERR.puts "No existing build info file found."
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return false
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end
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existing = JSON.parse(File.read(BUILD_INFO_FILE))
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expected = build_info
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if existing == expected
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true
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else
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STDERR.puts <<~MSG
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Existing build is not reusable.
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- Existing: #{existing.inspect}
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- Current: #{expected.inspect}
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MSG
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false
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end
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end
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build_cmd = %w[pnpm ember build]
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build_env = { "CI" => "1" }
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if Etc.nprocessors > 2
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# Anything more than 2 doesn't seem to improve build times
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build_env["JOBS"] ||= "2"
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end
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if low_memory_environment?
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STDERR.puts "Node.js heap_size_limit is less than 2048MB. Setting --max-old-space-size=2048 and CHEAP_SOURCE_MAPS=1"
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build_env["NODE_OPTIONS"] = "--max_old_space_size=2048"
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build_env["CHEAP_SOURCE_MAPS"] = "1"
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build_env["JOBS"] = "1"
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end
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build_cmd << "-prod" if resolved_ember_env == "production"
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if existing_core_build_usable?
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STDERR.puts "Reusing existing core ember build. Only building plugins..."
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build_env["SKIP_CORE_BUILD"] = "1"
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build_cmd << "-o" << "dist/_plugin_only_build"
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begin
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system(build_env, *build_cmd, exception: true)
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FileUtils.rm_rf("dist/assets/plugins")
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FileUtils.mv("dist/_plugin_only_build/assets/plugins", "dist/assets/plugins")
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ensure
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FileUtils.rm_rf("dist/_plugin_only_build")
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end
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STDERR.puts "Plugin build successfully integrated into dist"
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else
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STDERR.puts "Running full core build..."
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system(build_env, *build_cmd, exception: true)
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File.write(BUILD_INFO_FILE, JSON.pretty_generate(build_info))
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end
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