git2go/revparse.go

55 lines
934 B
Go

package git
/*
#include <git2.h>
#include <git2/errors.h>
extern void _go_git_revspec_free(git_revspec *revspec);
*/
import "C"
import (
"runtime"
"unsafe"
)
type RevSpec struct {
ptr *C.git_revspec
From Object
To Object
repo *Repository
}
func newRevSpecFrom(ptr *C.git_revspec, repo *Repository) *RevSpec {
rev := &RevSpec{
ptr: ptr,
From: allocObject(ptr.from, repo),
To: allocObject(ptr.to, repo),
repo: repo,
}
runtime.SetFinalizer(rev, (*RevSpec).Free)
return rev
}
func (r *RevSpec) Free() {
runtime.SetFinalizer(r, nil)
r.From.Free()
r.To.Free()
}
func (r *Repository) RevParse(spec string) (*RevSpec, error) {
cspec := C.CString(spec)
defer C.free(unsafe.Pointer(cspec))
var ptr *C.git_revspec
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ecode := C.git_revparse(ptr, r.ptr, cspec)
if ecode < 0 {
return nil, MakeGitError(ecode)
}
return newRevSpecFrom(ptr, r), nil
}