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// Copyright 2022 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build plugins
package main
import (
"fmt"
"log"
"os"
"path"
"path/filepath"
"gopkg.in/yaml.v2"
)
//go:generate go run generate.go
func main() {
data, err := os.ReadFile(filepath.Join("..", "plugins.yml"))
if err != nil {
log.Fatal(err)
}
var plugins []string
err = yaml.Unmarshal(data, &plugins)
if err != nil {
log.Fatal(err)
}
f, err := os.Create("plugins.go")
if err != nil {
log.Fatal(err)
}
defer f.Close()
_, err = f.WriteString(`// Copyright 2022 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This file is generated by "make plugins".
package plugins
`)
if err != nil {
log.Fatal(err)
}
if len(plugins) == 0 {
return
}
_, err = f.WriteString("import (\n")
if err != nil {
log.Fatal(err)
}
for i, plugin := range plugins {
_, err = f.WriteString(fmt.Sprintf("\t// Register %s plugin.\n", path.Base(plugin)))
if err != nil {
log.Fatal(err)
}
_, err = f.WriteString(fmt.Sprintf("\t_ \"%s\"\n", plugin))
if err != nil {
log.Fatal(err)
}
if i < len(plugins)-1 {
_, err = f.WriteString("\n")
if err != nil {
log.Fatal(err)
}
}
}
_, err = f.WriteString(")\n")
if err != nil {
log.Fatal(err)
}
}
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