/
generate-client.go
65 lines (52 loc) · 1.31 KB
/
generate-client.go
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// SPDX-FileCopyrightText: 2023 Christoph Mewes
// SPDX-License-Identifier: MIT
package main
import (
"bytes"
"go/format"
"log"
"os"
"path/filepath"
"strings"
"text/template"
)
const (
fields = 100
filename = "pkg/client/client_gen.go"
)
func makeRange(min, max int) []int {
a := make([]int, max-min+1)
for i := range a {
a[i] = min + i
}
return a
}
func main() {
templates, err := filepath.Glob("hack/*.go.tmpl")
if err != nil {
log.Fatalf("Failed to find Go templates: %v", err)
}
data := map[string]interface{}{
"numFields": fields,
"fields": makeRange(0, fields-1),
}
for _, templateFile := range templates {
log.Printf("Rendering %s...", templateFile)
content, err := os.ReadFile(templateFile)
if err != nil {
log.Fatalf("Failed to read client_gen.go.tmpl -- did you run this from the root directory?: %v", err)
}
tpl := template.Must(template.New("tpl").Parse(string(content)))
var buf bytes.Buffer
tpl.Execute(&buf, data)
source, err := format.Source(buf.Bytes())
if err != nil {
log.Fatalf("Failed to format generated code: %v", err)
}
filename := filepath.Join("pkg/client", strings.TrimSuffix(filepath.Base(templateFile), ".tmpl"))
err = os.WriteFile(filename, source, 0644)
if err != nil {
log.Fatalf("Failed to write %s: %v", filename, err)
}
}
}