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package git
/*
#include <git2.h>
#include <git2/errors.h>
extern int _go_git_treewalk(git_tree *tree, git_treewalk_mode mode, void *ptr);
*/
import "C"
import (
"runtime"
"time"
"unsafe"
)
// Commit
type Commit struct {
gitObject
}
func (c Commit) Message() string {
return C.GoString(C.git_commit_message(c.ptr))
}
func (c Commit) Tree() (*Tree, error) {
var ptr *C.git_object
runtime.LockOSThread()
defer runtime.UnlockOSThread()
err := C.git_commit_tree(&ptr, c.ptr)
if err < 0 {
return nil, LastError()
}
return allocObject(ptr).(*Tree), nil
}
func (c Commit) TreeId() *Oid {
return newOidFromC(C.git_commit_tree_id(c.ptr))
}
func (c Commit) Author() *Signature {
ptr := C.git_commit_author(c.ptr)
return newSignatureFromC(ptr)
}
func (c Commit) Committer() *Signature {
ptr := C.git_commit_committer(c.ptr)
return newSignatureFromC(ptr)
}
func (c *Commit) Parent(n uint) *Commit {
var cobj *C.git_object
ret := C.git_commit_parent(&cobj, c.ptr, C.uint(n))
if ret != 0 {
return nil
}
return allocObject(cobj).(*Commit)
}
func (c *Commit) ParentId(n uint) *Oid {
return newOidFromC(C.git_commit_parent_id(c.ptr, C.uint(n)))
}
func (c *Commit) ParentCount() uint {
return uint(C.git_commit_parentcount(c.ptr))
}
// Signature
type Signature struct {
Name string
Email string
When time.Time
}
func newSignatureFromC(sig *C.git_signature) *Signature {
// git stores minutes, go wants seconds
loc := time.FixedZone("", int(sig.when.offset)*60)
return &Signature{
C.GoString(sig.name),
C.GoString(sig.email),
time.Unix(int64(sig.when.time), 0).In(loc),
}
}
// the offset in mintes, which is what git wants
func (v *Signature) Offset() int {
_, offset := v.When.Zone()
return offset / 60
}
func (sig *Signature) toC() *C.git_signature {
if sig == nil {
return nil
}
var out *C.git_signature
name := C.CString(sig.Name)
defer C.free(unsafe.Pointer(name))
email := C.CString(sig.Email)
defer C.free(unsafe.Pointer(email))
ret := C.git_signature_new(&out, name, email, C.git_time_t(sig.When.Unix()), C.int(sig.Offset()))
if ret < 0 {
return nil
}
return out
}
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