nvidia-container-toolkit/pkg/config/raw.go
Evan Lezar bf2bdfd35e Refactor Toml config handling
This change refactors the toml config file handlig for runtimes
such as containerd or crio. A toml.Loader is introduced that
encapsulates loading the required file.

This can be extended to allow other mechanisms for loading
loading the current config.

Signed-off-by: Evan Lezar <elezar@nvidia.com>
2024-09-30 14:24:18 +02:00

62 lines
1.4 KiB
Go

/**
# Copyright 2024 NVIDIA CORPORATION
#
# 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.
**/
package config
import (
"fmt"
"os"
"path/filepath"
)
// Raw represents a raw config file
type Raw string
// Write writes the specified contents to a config file.
func (c Raw) Write(output []byte) (int, error) {
path := string(c)
if path == "" {
n, err := os.Stdout.Write(output)
if err == nil {
os.Stdout.WriteString("\n")
}
return n, err
}
if len(output) == 0 {
err := os.Remove(path)
if err != nil {
return 0, fmt.Errorf("unable to remove empty file: %v", err)
}
return 0, nil
}
if dir := filepath.Dir(path); dir != "" {
err := os.MkdirAll(dir, 0755)
if err != nil {
return 0, fmt.Errorf("unable to create directory %v: %v", dir, err)
}
}
f, err := os.Create(path)
if err != nil {
return 0, fmt.Errorf("unable to open %v for writing: %v", path, err)
}
defer f.Close()
return f.Write(output)
}