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go-template-lint

go-template-lint is a linter for Go text/template (and html/template) template files.

Checks

  • unused template functions (e.g., your FuncMap defines f but none of your templates call it)

Usage

go get sourcegraph.com/sourcegraph/go-template-lint
go-template-lint -f=<file-with-FuncMap.go> -t=<file-with-template-[][]string-list> -td=<base-template-dir>

The file-with-FuncMap.go option should be a Go source file that contains a FuncMap literal, such as:

package foo

import "text/template" // html/template and/or other import aliases are also detected

// ...
// can be nested in any block
  template.FuncMap{
    "f": myFunc,
    "g": func(v string) string { /* ... */ },
  }
// ...

The file-with-template-[][]string-list.go option should be a Go source file that contains a list of top-level templates and other template files (relative to the Go file) to include, such as:

package foo

// ...
// can be nested in any block
  [][]string{
    {"profile.html", "common.html", "layout.html"},
    {"edit.html", "common.html", "layout.html"},
  }
// ...

The base-template-dir should be the directory that contains your Go templates and that the template filenames in your code are relative to. For example, if the template files above (profile,html, common.html, etc.) were stored in app/templates, we'd use -td=app/templates.

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Linter for Go text/template (and html/template) template files

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