46 lines
898 B
Go
46 lines
898 B
Go
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package reexec
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import (
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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)
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var registeredInitializers = make(map[string]func())
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// Register adds an initialization func under the specified name
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func Register(name string, initializer func()) {
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if _, exists := registeredInitializers[name]; exists {
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panic(fmt.Sprintf("reexec func already registred under name %q", name))
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}
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registeredInitializers[name] = initializer
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}
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// Init is called as the first part of the exec process and returns true if an
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// initialization function was called.
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func Init() bool {
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initializer, exists := registeredInitializers[os.Args[0]]
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if exists {
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initializer()
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return true
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}
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return false
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}
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// Self returns the path to the current processes binary
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func Self() string {
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name := os.Args[0]
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if filepath.Base(name) == name {
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if lp, err := exec.LookPath(name); err == nil {
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name = lp
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}
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}
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return name
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}
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