CircleCI tests will fail for this commit, since these changes do not
address the problem that the module.useNode() stub imports the ESM code
using require. I will fix the tests properly in a later commit.
The meteor/tools/isobuild/resolver.js changes are the static half of the
puzzle. The runtime half was implemented in install@0.13.0 with this
commit: 233aa75ce3
Supporting "module" in package.json for server code is not advisable
because Node.js will be adopting the "type":"module" convention instead,
and in the meantime we need to maintain consistency with Node's module
resolution rules, which only currently pay attention to "main":
https://medium.com/@nodejs/announcing-a-new-experimental-modules-1be8d2d6c2ff
New Meteor apps have the following meteor.testModule in their package.json
files by default
"meteor": {
"testModule": "tests/main.js"
}
When meteor.testModule is defined, it determines the test entry point when
running the `meteor test` command, ignoring legacy file naming conventions
like *.tests.js or *.app-tests.js.
The package-source.js code changed by this commit was incorrect because it
ignored those specially-named test files even when running tests, which
was a problem if the meteor.testModule tried to import them explicitly,
because they would not be properly compiled.
If you're using meteor.testModule, the distinction between `meteor test`
and `meteor test --full-app` matters a bit less, since the test entry
point will be the same for both modes, though you can still check
Meteor.isTest and Meteor.isAppTest at runtime to control test behavior.
Should resolve#10233, reported by @klaussner.
Previously, if a compiler plugin called inputFile.addJavaScript multiple
times with different { path } strings, Meteor would allow importing all of
those modules at once by importing the original source module identifier,
by synthesizing a new source module containing a series of re-exports for
each of the generated modules.
Preserving this behavior is important for backwards compatibility, since
some compiler plugins still generate files like "module.ext.js" given an
input file named "module.ext", so Meteor tries to make those modules
interchangeable/synonymous.
However, if the compiler plugin explicitly calls inputFile.addJavaScript
with the original source path, then it would be a mistake to modify the
contents of that module, so Meteor will now leave the contents of that
explicit source module unmodified, rather than using it as a catch-all way
to import other generated modules.
The ImportScanner was mistakenly generating module.useNode() stub modules
for local .json files within Meteor packages, just because their absolute
module identifiers include "node_modules", which happens because we put
package modules under the /node_modules/meteor/<package name/ namespace.
Fix: make logic for determining when to generate module.useNode() stubs
match Module.prototype.useNode logic in modules-runtime/server.js.
Closes#10122.
I recently noticed a bug whereby modules transferred from the application
bundle to the modules bundle would lose their application-specific import
extensions, since all modules installed in the modules bundle have only
.js and .json as import extensions, matching default Node behavior.
This commit fixes that bug by emitting one meteorInstall call per distinct
meteorInstallOptions object. This logic would work if every module had a
different meteorInstallOptions object, but in practice the modules bundle
should end up with exactly two meteorInstall calls, because a single
options object is shared among all modules from the same source batch.
This should shave down bundle sizes by 14.4 kb for many non-blaze projects.
The other core meteor packages have not depended on `underscore` since #9362. However, we are only able to remove this last dependency now due to the previous commit, which eliminated usages of `underscore` from apps that did not have the package listed in their `packages` files. This was causing CI test failures that now should be corrected.
Any meteor apps currently using `_` without `underscore` listed in their `packages` file will need to add the package explicitly.
Version number of `meteor-base` bumped from 1.3.0 to 1.4.0.
There are only a few uses of `underscore` in these apps, and two of them actually used `underscore` without having it explicitly listed in their `packages` file.
This is a problem, because the apps were relying on the dependency from `meteor-base`, which we want to remove to cut down bundle sizes.
For the `modules` test app, I've added `underscore` to the `packages` file, because it is using `_` in an assertion about the module system. For the other app and all other uses of `_`, rather than add `underscore` to the `packages` files, I took the modernization route and replaced the functions with their ES6 equivalents, and then removed `underscore` from all `packages` files.
Determining if Meteor package files should be loaded lazily or eagerly is
a lot easier than doing so for application files, so we should just do
that separately, to avoid any risk of application directory layout logic
interfering with package behavior.
As illustrated by #9554, if a custom .babelrc plugin such as
@babel/plugin-proposal-optional-chaining imports a missing dependency such
as @babel/core, that failure causes inputFile.require to throw an
exception that looks a lot like @babel/plugin-proposal-optional-chaining
itself is missing, which can be confusing.
This change does not fix the underlying problem (the @babel/core package
still needs to be installed), but it does expose the exception so that the
developer can do something about it, rather than merely leaving the ?.
syntax uncompiled.
Here's the offending line of code:
47ce7e71c9/packages/babel-plugin-proposal-optional-chaining/src/index.js (L2)
Unfortunately, depending directly on @babel/core seems to be the policy
for Babel plugins, per this PR: https://github.com/babel/babel/pull/6778
This polyfill is unnecessary in Node, and added a whopping 22KB to the
minified client bundle. If you really need the Buffer API on the client,
you can get it from require("buffer").Buffer.
These changes allow Package.registerCompiler-style compiler plugins to
extract package.json and npm package information at compile time from the
files that the plugin processes.
This information was accessible before, but it certainly wasn't easy to
obtain it. These convenience methods should satisfy the motivation behind
Importantly, the files can now differ with respect to their .lazy
properties, which fixes#6806 and related issues. Note that the files must
have different .targetPath values if they have the same .sourcePath.
This is a minor breaking change for code that relied on module.id being
based on the .sourcePath instead of the .targetPath.
The implementation of these stubs is controlled by an optional npm package
called meteor-node-stubs, so we can keep iterating on them after releasing
Meteor 1.3, if we need to.
Fixes#6056.
