kdnotify/handler/template.go

53 lines
1.1 KiB
Go

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
package handler
import (
"fmt"
"os/exec"
"strings"
"text/template"
"github.com/mattn/go-shellwords"
"go.uber.org/zap"
)
func runTemplate(t *template.Template, env *TemplateEnv) (string, error) {
var buf strings.Builder
err := t.Execute(&buf, env)
if err != nil {
return "", fmt.Errorf("unable to parse exec template: %w", err)
}
return buf.String(), nil
}
func mkCmd(cmdline string) (*exec.Cmd, error) {
args, err := shellwords.Parse(cmdline)
if err != nil {
return nil, fmt.Errorf("unable to parse exec line: %w", err)
}
if len(args) < 1 {
return nil, fmt.Errorf("exec line evaluated as empty")
}
return exec.Command(args[0], args[1:]...), nil
}
func execRuleCmd(c *exec.Cmd, l *zap.Logger) {
err := c.Run()
if err != nil {
l.Named("exec").Warn(
"watch exec failed",
zap.String("cmd", c.String()),
zap.String("error", err.Error()),
)
}
}