307ff71c21
* chore(deps): Update closure/goog/base.js, add goog.js
- Update base.js from the latest version (20220502.0.0).
- Also copy over goog.js, which provides access to a suitable subset
of goog.* via an importable module).
* chore(build): Split gulpfiles/config.js exports object
This makes it possible for entries to depend on each other.
* chore(build): build config consistency
- Reorder entries in gulpfiles.config.js to better match order they
are used.
- Have update_metadata.sh reference config.js and vice versa.
* refactor(build): Move deps.js (+ deps.mocha.js) from test/ to build/
Once we start using tsc, deps.js will be created based on the ouptut
of tsc rather than the raw source in core/. Since tsc will need to
be run before running closure-make-deps and also before trying to
load blockly_uncompressed.js, it doesn't really make sense to check
in deps.js; it's better to re-create as needed.
To reduce inconvenience, a new "prepare" script is added to
package.json which will run the buildDeps gulp target automaticaly
when one runs npm install.
* refactor(build): Always build from TypeScript sources
- Add buildJavaScript gulp task to use tsc to compile any .ts files
in core/ into build/src/core/ (and also copy any .js files that
are not yet migrated to TypeScript, which for now is all of them.
- Remove closure/goog from explicit inputs to tsc; it will find
the files it needs (e.g., goog.js) automatically.
- Have buildDeps, the playground, and all the tests that run in
uncompiled mode use build/src/core/ instead of core/ as their
input directory.
* feat(build): Add buildJavaScriptAndDeps gulp task
Have npm run build:deps (and npm run prepare) use a new gulp task,
buildJavaScriptAndDeps, to run tsc followed by closure-make-deps,
ensuring that deps.js is calculated based on the most recent code
in core/.
* fix(build): Fix implementation of flattenCorePaths
Even though this function is going away I want to remove it in
a separate PR so that we can revert easily if desired. But the
previous checked-in code was totally wrong. This version works.
* fix(build): Don't let checkinBuilt copy build/src/**
Now that we are putting a lot more stuff in build/ (specifically,
all the tsc output in build/src/), modify checkinBuilt so that it
only copies the specific things we want to check in (for now):
- _compressed.js build artifacts and their accompanying .js.maps
- the generated build/msg/js/*.js language files.
Unrelatedly, also fix safety-quoting of arguments for one execSync
call.
Blockly 
Google's Blockly is a library that adds a visual code editor to web and mobile apps. The Blockly editor uses interlocking, graphical blocks to represent code concepts like variables, logical expressions, loops, and more. It allows users to apply programming principles without having to worry about syntax or the intimidation of a blinking cursor on the command line. All code is free and open source.
Getting Started with Blockly
Blockly has many resources for learning how to use the library. Start at our Google Developers Site to read the documentation on how to get started, configure Blockly, and integrate it into your application. The developers site also contains links to:
Help us focus our development efforts by telling us what you are doing with Blockly. The questionnaire only takes a few minutes and will help us better support the Blockly community.
Installing Blockly
Blockly is available on npm.
npm install blockly
For more information on installing and using Blockly, see the Getting Started article.
Getting Help
- Report a bug or file a feature request on GitHub
- Ask a question, or search others' questions, on our developer forum. You can also drop by to say hello and show us your prototypes; collectively we have a lot of experience and can offer hints which will save you time. We actively monitor the forums and typically respond to questions within 2 working days.
blockly-samples
We have a number of resources such as example code, demos, and plugins in another repository called blockly-samples. A plugin is a self-contained piece of code that adds functionality to Blockly. Plugins can add fields, define themes, create renderers, and much more. For more information, see the Plugins documentation.
Contributing to Blockly
Want to make Blockly better? We welcome contributions to Blockly in the form of pull requests, bug reports, documentation, answers on the forum, and more! Check out our Contributing Guidelines for more information. You might also want to look for issues tagged "Help Wanted" which are issues we think would be great for external contributors to help with.
Releases
The next major release will be during the last week of March 2022.
We release by pushing the latest code to the master branch, followed by updating the npm package, our docs, and demo pages. We typically release a new version of Blockly once a quarter (every 3 months). If there are breaking bugs, such as a crash when performing a standard action or a rendering issue that makes Blockly unusable, we will cherry-pick fixes to master between releases to fix them. The releases page has a list of all releases.
Releases are tagged by the release date (YYYYMMDD) with a leading major version number and a trailing '.0' in case we ever need a major or patch version (such as 2.20190722.1). Releases that have breaking changes or are otherwise not backwards compatible will have a new major version. Patch versions are reserved for bug-fix patches between scheduled releases.
We now have a beta release on npm. If you'd like to test the upcoming release, or try out a not-yet-released new API, you can use the beta channel with:
npm install blockly@beta
As it is a beta channel, it may be less stable, and the APIs there are subject to change.
Branches
There are two main branches for Blockly.
master - This is the (mostly) stable current release of Blockly.
develop - This is where most of our work happens. Pull requests should always be made against develop. This branch will generally be usable, but may be less stable than the master branch. Once something is in develop we expect it to merge to master in the next release.
other branches: - Larger changes may have their own branches until they are good enough for people to try out. These will be developed separately until we think they are almost ready for release. These branches typically get merged into develop immediately after a release to allow extra time for testing.
New APIs
Once a new API is merged into master it is considered beta until the following release. We generally try to avoid changing an API after it has been merged to master, but sometimes we need to make changes after seeing how an API is used. If an API has been around for at least two releases we'll do our best to avoid breaking it.
Unreleased APIs may change radically. Anything that is in develop but not master is subject to change without warning.
Issues and Milestones
We typically triage all bugs within 2 working days, which includes adding any appropriate labels and assigning it to a milestone. Please keep in mind, we are a small team so even feature requests that everyone agrees on may not be prioritized.
Milestones
Upcoming release - The upcoming release milestone is for all bugs we plan on fixing before the next release. This typically has the form of year_quarter_release (such as 2019_q2_release). Some bugs will be added to this release when they are triaged, others may be added closer to a release.
Bug Bash Backlog - These are bugs that we're still prioritizing. They haven't been added to a specific release yet, but we'll consider them for each release depending on relative priority and available time.
Icebox - These are bugs that we do not intend to spend time on. They are either too much work or minor enough that we don't expect them to ever take priority. We are still happy to accept pull requests for these bugs.
Good to Know
- Cross-browser Testing Platform and Open Source <3 Provided by Sauce Labs
- We support IE11 and test it using BrowserStack