commit | 3d9d515654ff4e21df07e4cc07e0f0bb600d01b9 | [log] [tgz] |
---|---|---|
author | Natalie Weizenbaum <nweiz@google.com> | Wed May 30 16:23:23 2018 -0400 |
committer | Natalie Weizenbaum <nweiz@google.com> | Wed May 30 16:23:23 2018 -0400 |
tree | 4f7d3f12548592774aed405053ae791b950aad59 | |
parent | ce0f41eba9ba9e50500a7ffec373061cfc0edc76 [diff] |
Broaden the dev dependency on shelf
A package that defines a common class, PackageResolver
, for defining how to resolve package:
URIs. This class may be based on the current isolate's package resolution strategy, but it may also be explicitly defined by the user—for example, you could create a resolver that represents the strategy used to compile a .dart.js
file.
The Dart VM provides two mutually exclusive means of resolving package:
URIs: a package spec and a package root.
A package spec usually comes in the form of a .packages
file on the filesystem. It defines an individual root URL for each package name, so that package:$name/$path
resolves to $root/$path
.
A package root is a single URL that acts as the base for all package:
URIs, so that package:$name/$path
resolves to $base/$name/$path
.
This normalizes access to these resolution schemes, and makes it easy for code to resolve package URIs no matter where the resolution information comes from.