25 lines
823 B
Go
25 lines
823 B
Go
package lookup
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import (
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"github.com/docker/libcompose/config"
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)
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// ComposableEnvLookup is a structure that implements the project.EnvironmentLookup interface.
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// It holds an ordered list of EnvironmentLookup to call to look for the environment value.
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type ComposableEnvLookup struct {
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Lookups []config.EnvironmentLookup
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}
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// Lookup creates a string slice of string containing a "docker-friendly" environment string
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// in the form of 'key=value'. It loop through the lookups and returns the latest value if
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// more than one lookup return a result.
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func (l *ComposableEnvLookup) Lookup(key, serviceName string, config *config.ServiceConfig) []string {
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result := []string{}
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for _, lookup := range l.Lookups {
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env := lookup.Lookup(key, serviceName, config)
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if len(env) == 1 {
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result = env
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}
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}
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return result
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}
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