Clever Geek Handbook

Is it possible for the go binary to reload?

I am using go-update ( https://github.com/inconshreveable/go-update ) to update the Go binary that I distribute to users. Right now, when a running program launches a new version, it sends a message to the user asking them to exit and restart the program.

Is it possible for a running go program to reload from a new binary?

This has been asked in the update issue tracker, but there is no answer: https://github.com/inconshreveable/go-update/issues/5

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Yes, you can use os.Args

one that contains the executable name of the current process and a package os.exec

that can start and fork. A good example is how this is done in a package goagain

that supports zero reloading. In fact, you can probably just use it.

See https://github.com/rcrowley/goagain



and more specifically in this file: https://github.com/rcrowley/goagain/blob/master/goagain.go#L77

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