sqlc generates empty imports statement, e.g. "import ()" #3134

Version

1.25.0

What happened?

When there are no imports to generate, sqlc generates two (2) unnecessary lines:

import ()
<blank line>

This is a problem when running this command in CI as gotfmt will remove that empty import and the blank line that follows:

gofmt -s -w . && git diff --exit-code

This is a simple fix; add a hasImports method for use by the template and then wrap every place in templates that generate imports with {{ if hasImports .SourceName }}. After submitting this issue I will submit a PR to fix this issue.

See db/models.go in playground.

Relevant log output

n/a

Database schema

n/a

SQL queries

n/a

Configuration

n/a

Playground URL

https://play.sqlc.dev/p/d03273b7d19072abdcb608fc72f577628aad25c2e478f7709a07221438da2832

What operating system are you using?

macOS

What database engines are you using?

SQLite

What type of code are you generating?

Go