nvidia-container-toolkit/pkg/config/engine/containerd/toml.go

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/**
# 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 containerd
import (
"fmt"
"github.com/pelletier/go-toml"
)
// tomlTree is an alias for toml.Tree that allows for extensions.
type tomlTree toml.Tree
func subtreeAtPath(c toml.Tree, path ...string) *tomlTree {
tree := c.GetPath(path).(*toml.Tree)
return (*tomlTree)(tree)
}
func (t *tomlTree) insert(other map[string]interface{}) error {
for key, value := range other {
if insertsubtree, ok := value.(map[string]interface{}); ok {
subtree := (*toml.Tree)(t).Get(key).(*toml.Tree)
return (*tomlTree)(subtree).insert(insertsubtree)
}
(*toml.Tree)(t).Set(key, value)
}
return nil
}
func (t *tomlTree) applyOverrides(overrides ...map[string]interface{}) error {
for _, override := range overrides {
subconfig, err := toml.TreeFromMap(override)
if err != nil {
return fmt.Errorf("invalid toml config: %w", err)
}
if err := t.insert(subconfig.ToMap()); err != nil {
return err
}
}
return nil
}