1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
package git
/*
#cgo pkg-config: libgit2
#include <git2.h>
#include <git2/errors.h>
*/
import "C"
import (
"runtime"
"unsafe"
)
const (
ReferenceSymbolic = C.GIT_REF_SYMBOLIC
ReferenceOid = C.GIT_REF_OID
)
type Reference struct {
ptr *C.git_reference
}
func newReferenceFromC(ptr *C.git_reference) *Reference {
ref := &Reference{ptr}
runtime.SetFinalizer(ref, (*Reference).Free)
return ref
}
func (v *Reference) SetSymbolicTarget(target string) (*Reference, error) {
var ptr *C.git_reference
ctarget := C.CString(target)
defer C.free(unsafe.Pointer(ctarget))
ret := C.git_reference_symbolic_set_target(&ptr, v.ptr, ctarget)
if ret < 0 {
return nil, LastError()
}
return newReferenceFromC(ptr), nil
}
func (v *Reference) SetTarget(target *Oid) (*Reference, error) {
var ptr *C.git_reference
ret := C.git_reference_set_target(&ptr, v.ptr, target.toC())
if ret < 0 {
return nil, LastError()
}
return newReferenceFromC(ptr), nil
}
func (v *Reference) Resolve() (*Reference, error) {
var ptr *C.git_reference
ret := C.git_reference_resolve(&ptr, v.ptr)
if ret < 0 {
return nil, LastError()
}
return newReferenceFromC(ptr), nil
}
func (v *Reference) Rename(name string, force bool) (*Reference, error) {
var ptr *C.git_reference
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
ret := C.git_reference_rename(&ptr, v.ptr, cname, cbool(force))
if ret < 0 {
return nil, LastError()
}
return newReferenceFromC(ptr), nil
}
func (v *Reference) Target() *Oid {
return newOidFromC(C.git_reference_target(v.ptr))
}
func (v *Reference) SymbolicTarget() string {
cstr := C.git_reference_symbolic_target(v.ptr)
if cstr == nil {
return ""
}
return C.GoString(cstr)
}
func (v *Reference) Delete() error {
ret := C.git_reference_delete(v.ptr)
if ret < 0 {
return LastError()
}
return nil
}
func (v *Reference) Name() string {
return C.GoString(C.git_reference_name(v.ptr))
}
func (v *Reference) Type() int {
return int(C.git_reference_type(v.ptr))
}
func (v *Reference) Free() {
runtime.SetFinalizer(v, nil)
C.git_reference_free(v.ptr)
}
type ReferenceIterator struct {
ptr *C.git_reference_iterator
repo *Repository
}
// NewReferenceIterator creates a new iterator over reference names
func (repo *Repository) NewReferenceIterator() (*ReferenceIterator, error) {
var ptr *C.git_reference_iterator
ret := C.git_reference_iterator_new(&ptr, repo.ptr)
if ret < 0 {
return nil, LastError()
}
iter := &ReferenceIterator{repo: repo, ptr: ptr}
runtime.SetFinalizer(iter, (*ReferenceIterator).Free)
return iter, nil
}
// NewReferenceIteratorGlob creates an iterator over reference names
// that match the speicified glob. The glob is of the usual fnmatch
// type.
func (repo *Repository) NewReferenceIteratorGlob(glob string) (*ReferenceIterator, error) {
cstr := C.CString(glob)
defer C.free(unsafe.Pointer(cstr))
var ptr *C.git_reference_iterator
ret := C.git_reference_iterator_glob_new(&ptr, repo.ptr, cstr)
if ret < 0 {
return nil, LastError()
}
iter := &ReferenceIterator{repo: repo, ptr: ptr}
runtime.SetFinalizer(iter, (*ReferenceIterator).Free)
return iter, nil
}
// Next retrieves the next reference name. If the iteration is over,
// the returned error is git.ErrIterOver
func (v *ReferenceIterator) NextName() (string, error) {
var ptr *C.char
ret := C.git_reference_next_name(&ptr, v.ptr)
if ret == ITEROVER {
return "", ErrIterOver
}
if ret < 0 {
return "", LastError()
}
return C.GoString(ptr), nil
}
// Create a channel from the iterator. You can use range on the
// returned channel to iterate over all the references names. The channel
// will be closed in case any error is found.
func (v *ReferenceIterator) NameIter() <-chan string {
ch := make(chan string)
go func() {
defer close(ch)
name, err := v.NextName()
for err == nil {
ch <- name
name, err = v.NextName()
}
}()
return ch
}
// Free the reference iterator
func (v *ReferenceIterator) Free() {
runtime.SetFinalizer(v, nil)
C.git_reference_iterator_free(v.ptr)
}
|
