69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package config
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import (
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"sync"
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)
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// delayedEnvironment is an implementation of the Environment which wraps the legacy
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// behavior of `*config.Configuration.loadGitConfig()`.
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//
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// It is functionally equivalent to call `cfg.loadGitConfig()` before calling
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// methods on the Environment type.
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type delayedEnvironment struct {
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env Environment
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loading sync.Mutex
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callback func() Environment
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}
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// Get is shorthand for calling the e.Load(), and then returning
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// `e.env.Get(key)`.
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func (e *delayedEnvironment) Get(key string) (string, bool) {
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e.Load()
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return e.env.Get(key)
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}
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// Get is shorthand for calling the e.Load(), and then returning
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// `e.env.GetAll(key)`.
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func (e *delayedEnvironment) GetAll(key string) []string {
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e.Load()
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return e.env.GetAll(key)
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}
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// Get is shorthand for calling the e.Load(), and then returning
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// `e.env.Bool(key, def)`.
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func (e *delayedEnvironment) Bool(key string, def bool) bool {
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e.Load()
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return e.env.Bool(key, def)
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}
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// Get is shorthand for calling the e.Load(), and then returning
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// `e.env.Int(key, def)`.
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func (e *delayedEnvironment) Int(key string, def int) int {
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e.Load()
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return e.env.Int(key, def)
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}
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// All returns a copy of all the key/value pairs for the current git config.
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func (e *delayedEnvironment) All() map[string][]string {
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e.Load()
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return e.env.All()
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}
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// Load reads and parses the .gitconfig by calling ReadGitConfig. It
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// also sets values on the configuration instance `g.config`.
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//
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// If Load has already been called, this method will bail out early,
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// and return false. Otherwise it will preform the entire parse and return true.
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//
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// Load is safe to call across multiple goroutines.
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func (e *delayedEnvironment) Load() {
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e.loading.Lock()
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defer e.loading.Unlock()
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if e.env != nil {
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return
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}
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e.env = e.callback()
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}
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