/
reference.go
208 lines (182 loc) · 4.91 KB
/
reference.go
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package git2
// #cgo pkg-config: libgit2
// #include <git2.h>
import "C"
import (
"reflect"
"unsafe"
)
type RefType int
const REF_INVALID RefType = iota
const (
REF_OID RefType = 1 << iota
REF_SYMBOLIC
REF_PACKED
REF_HAS_PEEL
REF_LISTALL = REF_OID | REF_SYMBOLIC | REF_PACKED
)
type Reference struct {
git_reference *C.git_reference
}
func (ref *Reference) Compare(other *Reference) int {
return int(C.git_reference_cmp(ref.git_reference, other.git_reference))
}
func (ref *Reference) Delete() error {
ecode := C.git_reference_delete(ref.git_reference)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}
func (ref *Reference) Free() {
C.git_reference_free(ref.git_reference)
}
func (ref *Reference) IsPacked() bool {
return C.git_reference_is_packed(ref.git_reference) != c_FALSE
}
func (ref *Reference) Name() string {
return C.GoString(C.git_reference_name(ref.git_reference))
}
func (ref *Reference) Oid() *Oid {
oid := new(Oid)
oid.git_oid = C.git_reference_oid(ref.git_reference)
if oid.git_oid == nil {
return nil
}
return oid
}
func (ref *Reference) SetOid(oid *Oid) error {
ecode := C.git_reference_set_oid(ref.git_reference, oid.git_oid)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}
func (ref *Reference) Owner() *Repository {
repo := new(Repository)
repo.git_repository = C.git_reference_owner(ref.git_reference)
if repo.git_repository == nil {
return nil
}
return repo
}
func (ref *Reference) Reload() error {
ecode := C.git_reference_reload(ref.git_reference)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}
func (ref *Reference) Rename(newName string, force bool) error {
cnewName := C.CString(newName)
defer C.free(unsafe.Pointer(cnewName))
cforce := C.int(c_FALSE)
if force {
cforce = C.int(c_TRUE)
}
ecode := C.git_reference_rename(ref.git_reference, cnewName, cforce)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}
func (ref *Reference) Resolve() (*Reference, error) {
resolved := new(Reference)
ecode := C.git_reference_resolve(&resolved.git_reference, ref.git_reference)
if ecode != git_SUCCESS {
return nil, gitError()
}
return ref, nil
}
func (ref *Reference) Target() string {
return C.GoString(C.git_reference_target(ref.git_reference))
}
func (ref *Reference) SetTarget(target string) error {
ctarget := C.CString(target)
defer C.free(unsafe.Pointer(ctarget))
ecode := C.git_reference_set_target(ref.git_reference, ctarget)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}
func (ref *Reference) Type() RefType {
return RefType(C.git_reference_type(ref.git_reference))
}
func (repo *Repository) CreateOidRef(name string, oid *Oid, force bool) (*Reference, error) {
ref := new(Reference)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
cforce := C.int(c_FALSE)
if force {
cforce = C.int(c_TRUE)
}
ecode := C.git_reference_create_oid(&ref.git_reference, repo.git_repository, cname, oid.git_oid, cforce)
if ecode != git_SUCCESS {
return nil, gitError()
}
return ref, nil
}
func (repo *Repository) CreateSymbolicRef(name, target string, force bool) (*Reference, error) {
ref := new(Reference)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
ctarget := C.CString(target)
defer C.free(unsafe.Pointer(ctarget))
cforce := C.int(c_FALSE)
if force {
cforce = C.int(c_TRUE)
}
ecode := C.git_reference_create_symbolic(&ref.git_reference, repo.git_repository, cname, ctarget, cforce)
if ecode != git_SUCCESS {
return nil, gitError()
}
return ref, nil
}
func (repo *Repository) ListReferences(flags RefType) ([]string, error) {
var crefs C.git_strarray
defer C.git_strarray_free(&crefs)
ecode := C.git_reference_list(&crefs, repo.git_repository, C.uint(flags))
if ecode != git_SUCCESS {
return nil, gitError()
}
// TODO: Find a safer way if one exists.
var refsSlice reflect.SliceHeader
length := int(crefs.count)
refsSlice.Data = uintptr(unsafe.Pointer(crefs.strings))
refsSlice.Len = length
refsSlice.Cap = length
crefStrings := *(*[]*C.char)(unsafe.Pointer(&refsSlice))
refs := make([]string, length)
for i := 0; i < len(crefStrings); i++ {
refs[i] = C.GoString(crefStrings[i])
}
return refs, nil
}
func (repo *Repository) LookupReference(name string) (*Reference, error) {
ref := new(Reference)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
ecode := C.git_reference_lookup(&ref.git_reference, repo.git_repository, cname)
if ecode != git_SUCCESS {
return nil, gitError()
}
return ref, nil
}
func (repo *Repository) ReferenceNameToOid(name string) (*Oid, error) {
oid := new(Oid)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
ecode := C.git_reference_name_to_oid(oid.git_oid, repo.git_repository, cname)
if ecode != git_SUCCESS {
return nil, gitError()
}
return oid, nil
}
func (repo *Repository) PackAllRefs() error {
ecode := C.git_reference_packall(repo.git_repository)
if ecode != git_SUCCESS {
return gitError()
}
return nil
}