Rule proposal: Template tag spacing

Please describe what the rule should do: Similar to func-call-spacing – it would enforce spacing between template tag and template literal.

What category of rule is this? (place an “X” next to just one item)

• Enforces code style
• Warns about a potential error
• Suggests an alternate way of doing something
• Other (please specify:)

Provide 2-3 code examples that this rule will warn about:

// correct with spacing required
const [user] = await sql `SELECT * FROM users WHERE id = ${id}`
ctx.body = {
  name: user.name,
  avatar: escape `/avatars/${user.id}.jpg`,
}

// correct with spacing disallowed
const [user] = await sql`SELECT * FROM users WHERE id = ${id}`
ctx.body = {
  name: user.name,
  avatar: escape`/avatars/${user.id}.jpg`,
}

[not-an-aardvark]

"always" and "never" sound good to me.

I think the default should be "never", since I’ve never seen anyone intentionally use a space here.

[kaicataldo]

I’ll champion this. @phaux Is everything clear? Please let us know if you need any help with anything, either here in this issue or in our Gitter.