2) Move observatory from runtime/bin/vmservice/observatory to runtime/observatory
3) Add two tools scripts:
- tools/run_pub.py (runs pub before SDK is built)
- tools/obs_tool.py (helper for get, build, and deploy stages)
4) Build Observatory with runtime:
- pub get --offline
- pub build
- deploy
5) Build artifacts are now in standard output directory, for example, out/DebugIA32/observatory.
6) Add a new 'dart_boostrap' host target (no snapshot, no observatory) that can be used as the Dart executable to run pub when building Observatory. This is behind a build.py flag --use-bootstrap-for-observatory because:
- It is only necessary on older Linux distributions that are incompatible with the prebuilt Dart testing executable.
- running pub build with the boostrap Debug build is significantly slower.
7) Detect if the prebuilt executable doesn't work and automatically switch to the 'dart_bootstrap' executable. Also, warn the user and provide a Wiki link with more information.
R=turnidge@google.com
Review URL: https://codereview.chromium.org//810623005
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@42614 260f80e4-7a28-3924-810f-c04153c831b5
