Replace bundle config subprocess calls with in-process helpers

[hsbt]

What's this change?

Replace bundle "config set --local", bundle "config set --global", bundle "config set" (no scope), and old-style bundle "config KEY VALUE" subprocess calls with in-process bundle_config / bundle_config_global helpers (~385 subprocess eliminations)

Motivation

Each bundle "config set ..." call spawns a Ruby subprocess just to write a config file. The bundle_config and bundle_config_global helpers do the same thing in-process via Bundler::Settings, eliminating the process startup overhead.

Make sure the following tasks are checked

• Describe the problem / feature
• Write tests for features and bug fixes
• Write code to solve the problem
• Make sure you follow the current code style and write meaningful commit messages without tags

[Copilot]

Pull request overview

This PR refactors the Bundler spec suite to avoid spawning bundle config ... subprocesses by writing Bundler settings in-process via the config / global_config test helpers (which persist to .bundle/config).

Changes:

• Replaced bundle "config set ..." / legacy bundle "config KEY VALUE" calls with config "BUNDLE_..." => "..." in many specs.
• Replaced global-scope config writes with global_config where appropriate.
• Standardized settings keys to the .bundle/config “BUNDLE_…” YAML key format (e.g., path.system → BUNDLE_PATH__SYSTEM).

Reviewed changes

Copilot reviewed 60 out of 60 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
spec/update/gemfile_spec.rb	Uses config helper to set BUNDLE_GEMFILE without a subprocess.
spec/runtime/setup_spec.rb	Replaces multiple bundle config set calls with config helper writes.
spec/runtime/self_management_spec.rb	Uses config helper for self-management-related settings (path, deployment, version).
spec/runtime/platform_spec.rb	Uses config helper for force_ruby_platform.
spec/runtime/inline_spec.rb	Uses config helper for force_ruby_platform and no_install.
spec/runtime/gem_tasks_spec.rb	Uses config helper for BUNDLE_PATH.
spec/runtime/executable_spec.rb	Uses config helper for BUNDLE_BIN.
spec/plugins/source/example_spec.rb	Uses config helper for BUNDLE_PATH in plugin source specs.
spec/plugins/install_spec.rb	Uses config helper for BUNDLE_DEPLOYMENT.
spec/other/major_deprecation_spec.rb	Uses config helper for BUNDLE_PATH/BUNDLE_FROZEN in deprecation scenarios.
spec/install/yanked_spec.rb	Uses config helper for BUNDLE_FORCE_RUBY_PLATFORM.
spec/install/path_spec.rb	Uses config/global_config helpers for path-related settings.
spec/install/global_cache_spec.rb	Uses config helper for path.system and local path settings.
spec/install/git_spec.rb	Uses config helper for path/without/clean settings.
spec/install/gems/standalone_spec.rb	Uses config helper for standalone install path/without settings.
spec/install/gems/post_install_spec.rb	Uses config helper for ignore_messages settings.
spec/install/gems/native_extensions_spec.rb	Uses config helper for build.* settings (BUNDLE_BUILD__...).
spec/install/gems/fund_spec.rb	Uses config helper for ignore_funding_requests.
spec/install/gems/flex_spec.rb	Uses config helper for force_ruby_platform.
spec/install/gems/dependency_api_spec.rb	Uses config helper for BUNDLE_DEPLOYMENT.
spec/install/gems/dependency_api_fallback_spec.rb	Uses config helper for BUNDLE_TIMEOUT.
spec/install/gems/compact_index_spec.rb	Uses config helper for deployment/path.system/disable_checksum_validation settings.
spec/install/gemfile_spec.rb	Uses config helper for BUNDLE_GEMFILE.
spec/install/gemfile/specific_platform_spec.rb	Uses config helper for path/frozen/cache_all_platforms settings.
spec/install/gemfile/sources_spec.rb	Uses config helper for deployment/path settings.
spec/install/gemfile/platform_spec.rb	Uses config helper for frozen/path/force_ruby_platform settings.
spec/install/gemfile/path_spec.rb	Uses config helper for frozen mode.
spec/install/gemfile/lockfile_spec.rb	Uses config helper for BUNDLE_PLUGINS.
spec/install/gemfile/groups_spec.rb	Uses config/global_config helpers for with/without settings.
spec/install/gemfile/git_spec.rb	Uses config/global_config helpers for checksums/frozen/global cache/path/deployment settings.
spec/install/gemfile/gemspec_spec.rb	Uses config helper for deployment/force_ruby_platform/without settings.
spec/install/gemfile/eval_gemfile_spec.rb	Uses config helper for deployment mode.
spec/install/deploy_spec.rb	Uses config helper for deployment/frozen/path/without settings.
spec/install/bundler_spec.rb	Uses config helper for force_ruby_platform/path/system/path settings.
spec/install/allow_offline_install_spec.rb	Uses config helper for BUNDLE_CLEAN.
spec/commands/version_spec.rb	Uses config helper for BUNDLE_SIMULATE_VERSION.
spec/commands/update_spec.rb	Uses config/global_config helpers for update/deployment/frozen/path.system/prefer_patch settings.
spec/commands/show_spec.rb	Uses config helper for BUNDLE_AUTO_INSTALL.
spec/commands/post_bundle_message_spec.rb	Uses config helper for path/path.system/without/force_ruby_platform settings.
spec/commands/outdated_spec.rb	Uses config helper for clean/auto_install/deployment settings.
spec/commands/open_spec.rb	Uses config helper for BUNDLE_AUTO_INSTALL.
spec/commands/newgem_spec.rb	Uses config helper for multiple gem.* settings (test/ci/linter/init_gems_rb).
spec/commands/lock_spec.rb	Uses config helper for without/path/force_ruby_platform/lockfile_checksums settings (includes an attempted unset conversion).
spec/commands/licenses_spec.rb	Uses config helper for BUNDLE_AUTO_INSTALL.
spec/commands/install_spec.rb	Uses config helper for force_ruby_platform/path/deployment/frozen/only settings.
spec/commands/init_spec.rb	Uses config helper for BUNDLE_INIT_GEMS_RB.
spec/commands/info_spec.rb	Uses config helper for path/without settings.
spec/commands/fund_spec.rb	Uses config helper for BUNDLE_WITH.
spec/commands/exec_spec.rb	Uses config/global_config helpers for path/path.system/clean/auto_install/disable_exec_load/gemfile settings.
spec/commands/console_spec.rb	Uses config helper for console/auto_install settings.
spec/commands/clean_spec.rb	Uses config helper for path/clean/without/dry_run/path.system settings.
spec/commands/check_spec.rb	Uses config helper for path/without/deployment/path.system settings.
spec/commands/cache_spec.rb	Uses config helper for cache_all/cache_all_platforms/without/frozen/path settings.
spec/commands/binstubs_spec.rb	Uses config helper for bin/auto_install settings.
spec/commands/add_spec.rb	Uses config helper for BUNDLE_FORCE_RUBY_PLATFORM.
spec/cache/path_spec.rb	Uses config helper for BUNDLE_CACHE_ALL.
spec/cache/git_spec.rb	Uses config helper for cache_all/path/deployment/frozen/global_gem_cache settings.
spec/cache/gems_spec.rb	Uses config helper for path.system/path/cache_all_platforms settings.
spec/cache/cache_path_spec.rb	Uses config helper for BUNDLE_CACHE_PATH.
spec/bundler/cli_spec.rb	Uses config/global_config helpers for default_cli_command/verbose/simulate_version/disable_version_check settings.

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[hsbt]

This reduced test time about 2-3min each Windows runner. Now, our test time is up to 22min with macOS and Windows.

To make testing any faster, I think significant changes would be needed, such as switching from end-to-end (E2E) testing to unit testing.

[Edouard-chin]

Good idea 👍