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76 lines
2.2 KiB
76 lines
2.2 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package plugin
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import (
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"strings"
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"go.yaml.in/yaml/v3"
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)
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// Runtime represents a plugin runtime (subprocess, extism, etc) ie. how a plugin should be executed
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// Runtime is responsible for instantiating plugins that implement the runtime
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// TODO: could call this something more like "PluginRuntimeCreator"?
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type Runtime interface {
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// CreatePlugin creates a plugin instance from the given metadata
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CreatePlugin(pluginDir string, metadata *Metadata) (Plugin, error)
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// TODO: move config unmarshalling to the runtime?
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// UnmarshalConfig(runtimeConfigRaw map[string]any) (RuntimeConfig, error)
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}
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// RuntimeConfig represents the assertable type for a plugin's runtime configuration.
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// It is expected to type assert (cast) the a RuntimeConfig to its expected type
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type RuntimeConfig interface {
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Validate() error
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}
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func remarshalRuntimeConfig[T RuntimeConfig](runtimeData map[string]any) (RuntimeConfig, error) {
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data, err := yaml.Marshal(runtimeData)
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if err != nil {
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return nil, err
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}
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var config T
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if err := yaml.Unmarshal(data, &config); err != nil {
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return nil, err
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}
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return config, nil
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}
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// parseEnv takes a list of "KEY=value" environment variable strings
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// and transforms the result into a map[KEY]=value
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//
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// - empty input strings are ignored
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// - input strings with no value are stored as empty strings
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// - duplicate keys overwrite earlier values
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func parseEnv(env []string) map[string]string {
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result := make(map[string]string, len(env))
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for _, envVar := range env {
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parts := strings.SplitN(envVar, "=", 2)
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if len(parts) > 0 && parts[0] != "" {
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key := parts[0]
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var value string
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if len(parts) > 1 {
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value = parts[1]
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}
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result[key] = value
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}
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}
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return result
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}
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