Pros of bubel over babel:
- No configuration (a la standard)
- Runs twice as fast, for quicker development
- Converts everything to ES5 (which is likely to be faster than ES6,
untested)
- Easy to swap Babel back in -- low commitment
Cons:
- Less battle-tested than Babel, but recommended by React core
developer so probably not too bad
- No babel plugin support, but we're not using that right now anyway.
Can switch back to babel if we need that later
BEFORE:
$ time npm run build
> webtorrent-desktop@0.16.0 build /Users/feross/code/webtorrent-desktop
> babel --quiet src --out-dir build
npm run build 3.07s user 0.27s system 115% cpu 2.902 total
AFTER:
$ time npm run build
> webtorrent-desktop@0.16.0 build /Users/feross/code/webtorrent-desktop
> buble src --output build
npm run build 1.38s user 0.16s system 114% cpu 1.343 total
Right now all Windows users are running a 32-bit app, even if their OS
is 64-bit.
Here's the plan to improve things:
1. We release a 64-bit installer, in addition to the 32-bit installer.
2. We auto-detect in the browser when a visitor is on a 32-bit vs.
64-bit OS and try to offer them the right installer. When in doubt, we
give them the 32-bit installer since that's safest.
3. The auto-updater will return the right binaries for the architecture
the user is on. This means that all our existing users who have 64-bit
OSs but are running the 32-bit app will get updated to the 64-bit app
on the next update. Also, 64-bit users who accidentally download the
32-bit installer will also get the 64-bit app on the next update.
---
Other notes:
- We don't generate 32-bit delta files. See reasoning inline.
- The package script now deletes extraneous Squirrel files (i.e.
*.nupkg delta files for older versions of the app) which should make
uploading the right files to GitHub easier. :)
The binary file naming works like this:
- Most users are on 64-bit systems, so they get nice clean file names
that don't specify an architecture (WebTorrentSetup-v1.0.0.exe). The
32-bit build files have the same naming but contain the string "-ia32"
at the end. In a few years, we will be able to just stop producing the
32-bit build files entirely.
- This means that the "WebTorrent-v0.15.0-linux-x64.zip" linux build
file is changing to "WebTorrent-v0.15.0-linux.zip" to match the Windows
naming convention. The .deb installer files must contain to
architecture in order to install correctly, so those do not change.
- Mac is 100% 64-bit, so it does not change.
Detect the actual operating system CPU architecture. This is different
than `process.arch` which returns the architecture the binary was
compiled for.
This is just good info to have in the telemetry, but we're also sending
it in the update check so that eventually we can upgrade Windows 32-bit
apps to 64-bit, like Slack does.
Context:
https://github.com/feross/webtorrent-desktop/issues/873#issuecomment-247
722023
See: https://github.com/feross/capture-frame
Capture video screenshot from a `<video>` tag (at the current time)
Changes from our version:
- Added tests in Chrome/Firefox browsers.
- Use built-in TypeError (which is meant for bad arguments) instead of
custom IllegalArgumentError.
