75fcdf5d3e
Factor out the "state" into its own class, ResolverState. The big difference from the previous state object: it actually explicitly tracks the set of potential UnitVersions for every active dependency. This essentially replaces the DependencyList class. Because we always know exactly how many options there are for a given dependency, we can both generalize and simplify the "propagate transitive exact deps" optimization. That optimization only worked on "foo@=1.2.3" dependencies, which meant it didn't apply in any other situation where there was only one possible package to choose. But there are a whole lot of other situations like that: local packages, packages that just don't have many versions, packages that already have a lot of constraints applied to them, etc. By tracking the set of potential alternatives, we can just make sure to always expand 1-alternative units first. We also maintain the aspect of the optimization where we don't need to call the cost function until we've actually gotten to a state with multiple neighbors. This keeps #2410 fixed as well. I've removed the constraintAncestor support as part of this refactoring, so some error messages may be worse than they were before. But this should set me up pretty well to improve error messages tomorrow.
Meteor
Meteor is an ultra-simple environment for building modern web applications.
With Meteor you write apps:
- in pure Javascript
- that send data over the wire, rather than HTML
- using your choice of popular open-source libraries
Documentation is available at http://docs.meteor.com/
Quick Start
Install Meteor:
curl https://install.meteor.com | /bin/sh
Create a project:
meteor create try-meteor
Run it:
cd try-meteor
meteor
Deploy it to the world, for free:
meteor deploy try-meteor.meteor.com
Slow Start (for developers)
If you want to run on the bleeding edge, or help develop Meteor, you can run Meteor directly from a git checkout.
git clone git://github.com/meteor/meteor.git
cd meteor
If you're the sort of person who likes to build everything from scratch, you can build all the Meteor dependencies (node.js, npm, mongodb, etc) with the provided script. This requires git, a C and C++ compiler, autotools, and scons. If you do not run this script, Meteor will automatically download pre-compiled binaries when you first run it.
# OPTIONAL
./scripts/generate-dev-bundle.sh
Now you can run meteor directly from the checkout (if you did not build the dependency bundle above, this will take a few moments to download a pre-build version).
./meteor --help
From your checkout, you can read the docs locally. The /docs directory is a
meteor application, so simply change into the /docs directory and launch
the app:
cd docs/
../meteor
You'll then be able to read the docs locally in your browser at
http://localhost:3000/
Note that if you run Meteor from a git checkout, you cannot pin apps to specific
Meteor releases or run using different Meteor releases using --release.
Uninstalling Meteor
Aside from a short launcher shell script, Meteor installs itself inside your home directory. To uninstall Meteor, run:
rm -rf ~/.meteor/
sudo rm /usr/local/bin/meteor
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- Core framework design mailing list: https://groups.google.com/group/meteor-core
- Contribution guidelines: https://github.com/meteor/meteor/tree/devel/Contributing.md
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