* Adds support to mongo options via Meteor settings
The options are in the `packages` key in the `mongo` key that is the package name. We should use the pattern every time we need a setting in a package.
We haven't always updated this minimum version when we've changed the
Node.js version bundled with Meteor, which is fine because most deployment
strategies (including Galaxy) use the right version of Node.js
automatically. With Meteor 1.9 and Node.js 12.14.0, however, it seems
important that we make absolutely sure new Meteor apps are not getting run
in production with an end-of-life'd version of Node.js (v8).
Unfortunately, this conversion triggered an error due to one of the
shortcomings of the Babel implementation of TypeScript:
SyntaxError: /tools/tool-env/profile.ts: Namespace not marked type-only declare. Non-declarative namespaces are only supported experimentally in Babel. To enable and review caveats see: https://babeljs.io/docs/en/babel-plugin-transform-typescript
278 | }
279 |
> 280 | export namespace Profile {
| ^
281 | export let enabled = !! process.env.METEOR_PROFILE;
282 |
283 | export function time<TResult>(bucket: string, f: () => TResult) {
at File.buildCodeFrameError (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/core/lib/transformation/file/file.js:261:12)
at transpileNamespace (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/plugin-transform-typescript/lib/namespace.js:25:25)
at PluginPass.TSModuleDeclaration (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/plugin-transform-typescript/lib/index.js:271:32)
at newFn (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/visitors.js:193:21)
at NodePath._call (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/path/context.js:53:20)
at NodePath.call (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/path/context.js:40:17)
at NodePath.visit (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/path/context.js:88:12)
at TraversalContext.visitQueue (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/context.js:118:16)
at TraversalContext.visitMultiple (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/context.js:85:17)
at TraversalContext.visit (/Users/ben/meteor/dev_bundle/lib/node_modules/@babel/traverse/lib/context.js:144:19)
This saves us from having to install @babel/parser in the server bundle.
There is currently a bug in Reify that prevents it from loading this
parser by default, but we can work around that on the Meteor side for now.
This information is useful when you need a unique identifier for the
current version of the application (and you're using Git).
If the current Git HEAD revision can't be found for any reason, the
gitRevision property simply will not appear in star.json or
__meteor_runtime_config__.
These changes are needed to get the plugin meteor-coverage working. IstanbulJS (shipped with meteor-coverage), can only generate the coverage-report for the code loaded after it's initialization. This is why the code, the plugin meteor-coverage contains, must be executed before the code is loaded, which should be tracked in the code-coverage. A suitable check I found was when a debugger isn't used, which makes it impossible to use code-coverage and the debugger at the same time. It's the only feasible condition I could come up with.
The package meteor-coverage also registers a hook of IstanbulJS which overwrites `vm.runInThisContext()` in order to start the coverage. As of now, IstanbulJS does not support overwriting `vm.Script.runInThisContext()`.
Clearly we haven't remembered to bump this version for some time now,
which is too bad, because it could have provided a more helpful error for
developers using an older version of Node in their non-Galaxy deployment
environments: https://github.com/meteor/meteor/issues/9470
The `meteor debug` command behaves like Node's `--inspect-brk` flag, in
that it attempts to pause the server before executing any server code.
However, simply passing the `--inspect-brk` flag to Node causes execution
to pause on the very first line of code, which is not good for setting any
breakpoints, because no server code has actually loaded yet.
Instead, the `meteor debug` command uses Node's `--inspect` flag to enable
debugging without an initial pause, then manually pauses at an appropriate
moment during server startup. Ideally, the pause should last until an
inspector client has been attached to the process, at which point the
developer has a chance to set any desired breakpoints, then clicks the
continue button to proceed with server startup.
The most difficult part of this process is detecting when the inspector
client has attached. Previously, the parent process listened for the child
process to print a "Debugger attached" message to STDERR, which happens as
a result of this `fprintf` call in Native C++:
7cff6e80bf/src/inspector_io.cc (L396)
However, this message was not printed in some cases, especially on Windows
(#9165), and required inter-process communication even in the ideal case.
All of that logic is gone now, thanks to this commit.
This commit takes advantage of a difference in behavior of the `debugger`
keyword depending on whether or not an inspector client is attached. When
no client is attached, the `debugger` keyword is a no-op that takes no
time (or very little time) to execute. Once a client has attached, the
`debugger` keyword triggers a breakpoint that lasts until the developer
explicitly continues execution through the client UI. Needless to say,
this makes the `debugger` keyword take longer than a no-op.
Because the `debugger` keyword does nothing until a client connects, we
can safely poll a `pause` function containing a `debugger` keyword at a
frequent interval (say, every 500ms). Once a client connects, the
`debugger` keyword will become active, pausing the server at exactly the
point we hoped. The difference is easy to detect by timing the `pause()`
function call. Once the `debugger` keyword becomes active, we stop polling
and allow server startup to continue.
Elegant!
Fixes#9165.
This is another way of addressing the problem I attempted to fix with
f34c5ec926 earlier today.
Apparently, older versions of compiler plugin-registering packages such as
standard-minifier-css and templating-compiler still depend on older
versions of the meteor package, which may still use path.join to import
fibers/future. This can be fixed by republishing those packages, as I did
in 917b01ac5f, but I'd prefer not to
republish every compiler plugin package.
Fortunately, we can also solve the problem by being more tolerant in the
implementation of Npm.require, which is what this commit does.
Ever since Meteor 1.3 first introduced a module system based on something
other than `Npm.require`, we've continued throwing missing module
exceptions that refer to `Npm.depends` and/or `Npm.require`, even if the
developer called `require` or used an `import` declaration. This commit
fixes that, so that all missing module exceptions look like 'Cannot find
module "module/name"'.
I also noticed recently that `Npm.require` is capable of returning modules
installed in `node_modules` directories completely outside the app, which
is bad news for development/production reproducibility. Fixed that too.
CC @hwillson who has spoken of deprecating `Npm.require` entirely, and
just using `require` everywhere, instead.
Bug fixed: we should never be calling meteorDebugFuture.wait() in
production, so we now use process.env.METEOR_INSPECT_BRK in developement
to enable the waiting.
Lesson learned: if you call Fiber.yield() in the only running Fiber
without any other events scheduled on the event loop, the program will
immediately exit with code 0, as it should.
Closes#8817.
This is the feature that excites me most about Meteor 1.6, hands down.
Benefits include:
* Works with `meteor test[-packages] --debug-port 9229` (for tests), as
well as just `meteor debug` (for apps).
* The application process waits patiently for the debugger to attach, so
you don't have to race to open the debugger.
* The application process pauses at a location just after all server code
has been evaluated, but before any code starts executing, giving you a
chance to set reliable breakpoints anywhere in server code. This is much
better than using the `node --inspect-brk` flag, since that stops too
soon to set any useful breakpoints.
* The application server runs at full speed, so you don't have to wait
forever to hit that all-important breakpoint, and you don't lose nearly
as much time if you accidentally continue past the line of code where
the trouble is occurring.
* Even if your application is stuck in an infinite loop, you can still
attach the debugger, pause execution, and debug the loop.
* No more `node-inspector`! Instead, you can now debug your server code in
native Chrome DevTools, or several other high-quality inspector clients,
such as VS Code or WebStorm (seriously, check out the documentation:
https://nodejs.org/en/docs/inspector/#inspector-tools-clients). The list
of debuggable processes can be found at the URL chrome://inspect.
* Realistic performance and memory profiling is now possible via the
familiar DevTools interface.
* I highly recommend this Chrome extension that automatically (re)connects
to any open inspector sockets, so you don't have to keep manually
(re)attaching the debugger: http://june07.com/nim
* The implementation of `meteor debug` no longer has to proxy multiple
private/public debugger ports. Look at all that deleted code!
This new inspector is so much better than the old `node-inspector` that
I've been using the release-1.6 branch to debug problems in Meteor 1.5,
despite the risks of using Node 8, because those risks are so far
outweighed by the quality of the new debugging experience.
That said, the experience isn't perfect (yet). I welcome your feedback on
the Meteor 1.6 PR: https://github.com/meteor/meteor/pull/8728
This actually changed ages ago, in Node.js 0.11 via
fd3657610e
however the descriptive error message, which was previously
enabled with `true` as the third argument, was silently lost.
This reimplements the descriptive error message as mentioned in
https://github.com/meteor/meteor/issues/3200#issuecomment-289685677 by
@d-schiffner.
Presently, the renaming of directories that are in-use will fail on
Windows. This is already compensated for when `process.platform` is
set to `win32`. However, within BashOnWindows/WSL (Windows Subsystem
for Linux), `process.platform` is equal to `linux`, though the
underlying filesystem is still the same.
Microsoft has stated that it is unlikely that they will remove
`Microsoft` from the `os.release()` value so we check for that.
Currently this functionality is only used for exposing npmRequire and
Profile to the packages/modules-runtime.js bundle, but I'm planning to use
it for packages/dynamic-import.js soon.
