ui

README

The ui directory contains static files and templates used in the web UI. For easier distribution they are statically compiled into the Prometheus binary using the vfsgen library (c.f. Makefile).

During development it is more convenient to always use the files on disk to directly see changes without recompiling. To make this work, remove the builtinassets build tag in the flags entry in .promu.yml, and then make build (or build Prometheus using go build ./cmd/prometheus).

This will serve all files from your local filesystem. This is for development purposes only.

Documentation

Overview

Package ui provides the assets via a virtual filesystem.

Index

• Variables

Variables

var Assets = func() http.FileSystem {
	wd, err := os.Getwd()
	if err != nil {
		panic(err)
	}
	var assetsPrefix string
	switch filepath.Base(wd) {
	case "prometheus":

		assetsPrefix = "./web/ui"
	case "web":

		assetsPrefix = "./ui"
	case "ui":

		assetsPrefix = "./"
	}

	static := filter.Keep(
		http.Dir(path.Join(assetsPrefix, "static")),
		func(path string, fi os.FileInfo) bool {
			return fi.IsDir() ||
				(!strings.HasSuffix(path, "map.js") &&
					!strings.HasSuffix(path, "/bootstrap.js") &&
					!strings.HasSuffix(path, "/bootstrap-theme.css") &&
					!strings.HasSuffix(path, "/bootstrap.css"))
		},
	)

	templates := filter.Keep(
		http.Dir(path.Join(assetsPrefix, "templates")),
		func(path string, fi os.FileInfo) bool {
			return fi.IsDir() || strings.HasSuffix(path, ".html")
		},
	)

	return union.New(map[string]http.FileSystem{
		"/templates": templates,
		"/static":    static,
	})
}()

Assets contains the project's assets.