Sandbox::https://github.com/libgit2/git2go/blob/main/message.go

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package git

#include <git2.h>

import "C"

import (

"runtime"

"unsafe"

)

// Trailer represents a single git message trailer.

type Trailer struct {

Key string

Value string

}

// MessageTrailers parses trailers out of a message, returning a slice of

// Trailer structs. Trailers are key/value pairs in the last paragraph of a

// message, not including any patches or conflicts that may be present.

func MessageTrailers(message string) ([]Trailer, error) {

var trailersC C.git_message_trailer_array

messageC := C.CString(message)

defer C.free(unsafe.Pointer(messageC))

runtime.LockOSThread()

defer runtime.UnlockOSThread()

ecode := C.git_message_trailers(&trailersC, messageC)

if ecode < 0 {

return nil, MakeGitError(ecode)

}

defer C.git_message_trailer_array_free(&trailersC)

trailers := make([]Trailer, trailersC.count)

var trailer *C.git_message_trailer

for i, p := 0, uintptr(unsafe.Pointer(trailersC.trailers)); i < int(trailersC.count); i, p = i+1, p+unsafe.Sizeof(C.git_message_trailer{}) {

trailer = (*C.git_message_trailer)(unsafe.Pointer(p))

trailers[i] = Trailer{Key: C.GoString(trailer.key), Value: C.GoString(trailer.value)}

}

return trailers, nil

}