Upgrade to Node 6

[Frijol]

Per

It's going to LTS in October, and we should move with it

[tcr]

Current tasks:

• Switch OpenWRT build to use LTS branch http://github.com/tessel/openwrt-tessel/pull/58
• Disable iconv (cc @rwaldron)
• Create precompiled modules for each version, have t2-cli pull them down appropriately

[tcr]

@huseyinkozan has these two branches to support porting:

• https://github.com/huseyinkozan/t2-firmware/commits/master
• https://github.com/huseyinkozan/openwrt-tessel/commits/node-6.2.1

[rwaldron]

re: iconv/intl/icu

It's more than just iconv, I believe we need to disable intl to avoid inclusion of icu data. https://github.com/nodejs/node/blob/master/configure#L322-L326

@srl295 can you advise?

---

re: t2-cli

Create precompiled modules for each version, have t2-cli pull them down appropriately

It's not as simple as this bullet implies. I have specific tasks filed across our projects to address each step accordingly. Unfortunately, github offers no way to formally indicate blockers, but each thing must be considered a blocker. I have a plan for t2-cli's path forward, but it requires several other tasks before I implement.

• Need to make copies of existing precompiled tarballs and name them with node 4 version
• Need to build for both a node 4 and 6 and name output tarball files accordingly is blocked by Need to make copies of existing precompiled tarballs and name them with node 4 version t2-compiler#33
• Make Node 6 precompiled binaries for all existing Node 4 precompiled binaries is blocked by Need to build for both a node 4 and 6 and name output tarball files accordingly  t2-compiler#32 (I just added this one to make sure the step is clearly defined)
• Updating t2-cli is blocked by Make Node 6 precompiled binaries for all existing Node 4 precompiled binaries t2-compiler#34

[tcr]

Also @huseyinkozan you did this in your commit huseyinkozan/openwrt-tessel@4d20a94, was that sufficient to bring the size of the Node binary down?

[rwaldron]

Also @huseyinkozan you did this in your commit huseyinkozan/openwrt-tessel@4d20a94, was that sufficient to bring the size of the Node binary down?

That looks correct to me, but I would like @srl295 to confirm as well

[rwaldron]

@srl295 directed me to: https://github.com/nodejs/node/blob/master/BUILDING.md#building-without-intl-support which confirms that @huseyinkozan's patch is correct

[huseyinkozan]

Hi all,
@tcr, it is 19 MB. Dont remember the size gain. It just works. The binary below built by the commit you noted. I tried to include libicu and enable it again, but no success.

http://huseyinkozan.com.tr/files/tmp/openwrt-ramips-mt7620-tessel-squashfs-sysupgrade-node-6.2.1-without-intl.bin

Our app is so large (~7MB), and it works on my build. These are the deps:

  "dependencies": {
    "body-parser": "^1.15.1",
    "buffer-layout": "^0.13.0",
    "compression": "^1.6.2",
    "cookie-parser": "^1.4.3",
    "diskspace": "^1.0.3",
    "express": "^4.14.0",
    "express-session": "^1.13.0",
    "fs-extra": "^0.30.0",
    "mathjs": "^3.3.0",
    "moment-timezone": "^0.5.4",
    "multer": "^1.1.0",
    "node-json-db": "^0.7.2",
    "passport": "^0.3.2",
    "passport-http": "^0.3.0",
    "pidusage": "^1.0.1",
    "semantic-ui": "^2.1.8",
    "serialport": "^3.1.2",
    "session-file-store": "^0.2.0",
    "string": "^3.3.1",
    "touch": "^1.0.0"
  }

Serialport library is for PC port. The app serve a semantic-ui GUI, an API on expressjs, and an apidoc static directory. Whole app loads aprox. 40 secs, CPU is setle down after then.

I want to show the demo site, but my bosses want to wait unil finalize our product. : ^ /

I will try to update from upstream and build it again to night (UTC+3).

[huseyinkozan]

Previous works:
tessel/openwrt-tessel#58

icu fix comes from:
nodejs/node#7173

[johnnyman727]

Just a note that the Flash size went down to ~14.5MB when we swapped ffmpeg for mpeg-streamer in 0.0.14.