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package git
/*
#include <git2.h>
#include <git2/errors.h>
*/
import "C"
import (
"io"
"runtime"
)
// RevWalk
type SortType uint
const (
SortNone SortType = C.GIT_SORT_NONE
SortTopological = C.GIT_SORT_TOPOLOGICAL
SortTime = C.GIT_SORT_TIME
SortReverse = C.GIT_SORT_REVERSE
)
type RevWalk struct {
ptr *C.git_revwalk
repo *Repository
}
func revWalkFromC(repo *Repository, c *C.git_revwalk) *RevWalk {
v := &RevWalk{ptr: c, repo: repo}
runtime.SetFinalizer(v, (*RevWalk).Free)
return v
}
func (v *RevWalk) Reset() {
C.git_revwalk_reset(v.ptr)
}
func (v *RevWalk) Push(id *Oid) {
C.git_revwalk_push(v.ptr, id.toC())
}
func (v *RevWalk) PushHead() (err error) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ecode := C.git_revwalk_push_head(v.ptr)
if ecode < 0 {
err = MakeGitError(ecode)
}
return
}
func (v *RevWalk) Next(id *Oid) (err error) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
ret := C.git_revwalk_next(id.toC(), v.ptr)
switch {
case ret == ITEROVER:
err = io.EOF
case ret < 0:
err = MakeGitError(ret)
}
return
}
type RevWalkIterator func(commit *Commit) bool
func (v *RevWalk) Iterate(fun RevWalkIterator) (err error) {
oid := new(Oid)
for {
err = v.Next(oid)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
commit, err := v.repo.LookupCommit(oid)
if err != nil {
return err
}
cont := fun(commit)
if !cont {
break
}
}
return nil
}
func (v *RevWalk) Sorting(sm SortType) {
C.git_revwalk_sorting(v.ptr, C.uint(sm))
}
func (v *RevWalk) Free() {
runtime.SetFinalizer(v, nil)
C.git_revwalk_free(v.ptr)
}
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