doc: add CTC meeting minutes 2016-06-22

closes #7366

PR-URL: #7390
Reviewed-By: Bradley Farias <[email protected]>
Reviewed-By: Rod Vagg <[email protected]>
Reviewed-By: James M Snell <[email protected]>

doc/ctc-meetings/2016-06-22.md

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+# Node Foundation CTC Meeting 2016-06-22
+
+## Links
+
+* **Audio Recording**: TBP
+* **GitHub Issue**: https://github.com/nodejs/node/issues/7366
+* **Minutes Google Doc**: <https://docs.google.com/document/d/1X9PTcpYgTKJO-PRKOLBrL4fIV-7XDR0x71FAxJWn0II>
+* _Previous Minutes Google Doc: <https://docs.google.com/document/d/1e7JdFHVtMtW9_o0Gi3NNz6g7TK50q4u9LYKFzBeHOQ8>_
+
+## Present
+
+* Bradley Meck @bmeck (observer/GoDaddy/TC39)
+* Chris Dickinson @chrisdickinson (CTC)
+* Evan Lucas @evanlucas (CTC)
+* James M Snell @jasnell (CTC)
+* John-David Dalton @jdalton (observer/Lodash/Microsoft)
+* Yuval Brik @jhamhader (observer)
+* Josh Gavant @joshgav (observer/Microsoft)
+* Michael Dawson @mhdawson (CTC)
+* Brian White @mscdex (CTC)
+* Ali Ijaz Sheikh @ofrobots (CTC)
+* Shigeki Ohtsu @shigeki (CTC)
+* Steven R. Loomis @srl295 (observer/IBM/ICU)
+* Trevor Norris @trevnorris (CTC)
+* Rich Trott @Trott (CTC)
+
+## Agenda
+
+Extracted from **ctc-agenda** labelled issues and pull requests from the **nodejs org** prior to the meeting.
+
+### nodejs/node
+
+* Node 6 fs.realpath behavior changes [#7175](https://github.com/nodejs/node/issues/7175)
+
+## Standup
+
+* Bradley Meck @bmeck (observer/GoDaddy/TC39)
+    * Need for APM / JIT Cache hooks investigation
+    * Investigation into VM support for V8 and ES Modules
+* Chris Dickinson @chrisdickinson (CTC)
+    * Keeping track of ES Modules proposals
+    * tooling gn to be npm installable
+* Evan Lucas @evanlucas (CTC)
+    * working on security fixes
+    * looking for ways to streamline landing commits
+* James M Snell @jasnell (CTC)
+    * Vacation last week (worked on an experimental http/2 impl)
+    * Working on WHATWG URL implementation
+    * Various other performance related and doc PRs
+    * And a heads up.. Will be on vacation again the 2nd and 3rd weeks of July.
+* John-David Dalton @jdalton (observer/Lodash/Microsoft)
+    * Retooled proposal to simplify it and make it more generic so it will work with things other than just script and module
+    * Babel now supports export {} and therefore supports Unambiguous Modules proposal
+    * Pinged some v8 devs to ask about impact there
+    * Met with TypeScript folks too to discuss things that are a bit out of the scope of Unambiguous JavaScript but still modules
+    * Initial round of feedback on Unambiguous JavaScript. Will be in JavaScript Weekly tomorrow.
+* Josh Gavant @joshgav (observer/Microsoft)
+    * hacking on inspector and tracing stuff
+    * es6 modules a bit
+    * monitoring issues, PRs, etc.
+* Michael Dawson @mhdawson (CTC)
+    * Chasing PPC machine issues
+    * Chasing new AIX machines (expect this month)
+    * Contributing to ABI stable module API PoC (NaN examples 1-8 now work)
+    * Misc reviews/commenting
+    * misc PRs/lands
+    * Keeping up with issues
+* Brian White @mscdex (CTC)
+    * Reviewing PRs/issues
+* Shigeki Ohtsu @shigeki (CTC)
+    * Reviewing just one PR for root cert update.
+* Steven R. Loomis @srl295 (observer/IBM/ICU)
+    * helping @jasnell (a little) with https://github.com/nodejs/node/pull/7355
+* Trevor Norris @trevnorris (CTC)
+    * Additional work on the AsyncWrap EP
+    * Misc PR reviews
+* Rich Trott @Trott (CTC)
+    * CO: Continuous Onboarding (welcome @RReverser!)
+    * CI: Investigating and fixing flaky tests as time allows
+* Ali Ijaz Sheikh @ofrobots(CTC)
+    * Working on FFI, and other miscellaneous things.
+
+
+## Minutes
+
+### Review of last meeting
+
+* url: return valid file: urls fom url.format() [#7234](https://github.com/nodejs/node/pull/7234)
+* http: don't inherit from Object.prototype [#6102](https://github.com/nodejs/node/pull/6102)
+* ES6 Modules
+
+### fs.realpath
+
+- https://github.com/nodejs/node/issues/7175
+- https://github.com/nodejs/CTC/issues/9
+- https://github.com/nodejs/node/issues/7192
+- https://github.com/nodejs/node/issues/7044
+- https://github.com/nodejs/node/issues/7294
+
+When we made changes to rely on libuv realpath it was a semver-major change which introduced new errors and removed `cache` argument. This broke some ecosystem modules, notably `glob`. Also broke some path-related stuff in Windows.
+
+We chose libuv realpath because it’s much more performant.
+
+Options:
+- Revert to old behavior. Would lose perf gains. Would be semver-major change.
+- Add new method e.g. `realpath2` which uses old behavior.
+- **Keep new behavior and add logic in Node to handle new/unexpected errors.**
+
+@jasnell - We did a semver-major revert for the symlink issue.<br />
+@trevnorris - No need to revert, just handle the errors.<br />
+@jasnell - Do we really know what the errors are so we can be sure we’re handling all of them?<br />
+@trevnorris - we can compare to old impl.<br />
+@jasnell - Add an option to the options object to suppress errors, turn on by default.<br />
+
+**@trevnorris will work on option 3.**
+
+Post-mortem: https://github.com/nodejs/CTC/issues/9
+- Postpone till Rod is present.
+- @jasnell - We didn’t follow typical deprecation path for `cache` parameter change.
+
+
+### ES6 modules
+
+- https://github.com/bmeck/UnambiguousJavaScriptGrammar
+
+- Any code with `import` or `export` is a module, otherwise a script.
+- `modules.root` aspect removed, so “fat packages” (i.e. incl. both ES6 and CJS) are not addressed. Recommendation is to use one or the other and transpile as needed. Or discuss `modules.root` separately.
+- Users can explicitly specify module goal in package.json. This way even if dev removes all `import/export` from their code it’s still treated as a module.
+- TC39 could provide a “recommendation” or endorsement supporting this. They may suggest a spec extension.
+
+@bradleymeck - still need modules.root for fat packages.
+
+What about bytecode caching? Provide hooks to allow user to handle as desired. That means caching is in userland. Might split this into separate proposal.
+
+@trevnorris analyzed perf hit of double parsing and found max 25% perf hit.
+
+In-band detection (from the code itself) is preferable to out-of-band detections (e.g. package.json, file extension).
+
+CJS and ES6 semantic interoperability: Bradley is working on this, working with WHATWG Loader spec and V8.
+- `this` value
+- live bindings for getters (get updated values) (?)
+- immutability - hooks for APM providers to wrap original functions. To be handled by WHATWG Loader spec.
+
+**@jdalton - How do we finalize consensus on this?**
+- **PR to change [node-eps:/002-es6-modules.md](https://github.com/nodejs/node-eps/blob/master/002-es6-modules.md)**
+
+### Q/A on public fora
+None.
+
+### Next Meeting
+2016-06-29