added force push (#172)

conf.example.yml

@@ -220,11 +220,13 @@ destination:
       organization: whatever # name of the organization to want to backup to
       visibility:
         repositories: private # private, public, default: private
+      force: false # force push to destination
   onedev:
     - token: some-token
       # token_file: token.txt # alternatively, specify token in a file
       url: http(s)://url-to-onedev
       organization: whatever # name of the parent project you want to backup to
+      force: false # force push to destination
   sourcehut:
     - token: some-token # as of now only the legacy api works, use the legacy token
       # token_file: token.txt # alternatively, specify token in a file
@@ -233,6 +235,7 @@ destination:
       url: http(s)://url-to-sourcehut # if empty, it uses https://git.sr.ht
       visibility:
         repositories: private # public, unlisted, private, default: public
+      force: false # force push to destination
   local:
     # Export this path from Docker with a volume to make it accessible and more permanent.
     - path: /some/path/gickup

local/local.go

@@ -494,11 +494,11 @@ func CreateRemotePush(repo *git.Repository, destination types.GenRepo, url strin
 
 	headref, _ := repo.Head()
 
-	pushoptions := git.PushOptions{Auth: auth, RemoteName: remote.Config().Name, RefSpecs: []config.RefSpec{config.RefSpec(fmt.Sprintf("%s:%s", headref.Name(), headref.Name()))}}
+	pushoptions := git.PushOptions{Force: destination.Force, Auth: auth, RemoteName: remote.Config().Name, RefSpecs: []config.RefSpec{config.RefSpec(fmt.Sprintf("%s:%s", headref.Name(), headref.Name()))}}
 
 	err = repo.Push(&pushoptions)
 	if err == nil || err == git.NoErrAlreadyUpToDate {
-		pushoptions = git.PushOptions{Auth: auth, RemoteName: remote.Config().Name, RefSpecs: []config.RefSpec{"refs/heads/*:refs/heads/*", "refs/tags/*:refs/tags/*"}}
+		pushoptions = git.PushOptions{Force: destination.Force, Auth: auth, RemoteName: remote.Config().Name, RefSpecs: []config.RefSpec{"refs/heads/*:refs/heads/*", "refs/tags/*:refs/tags/*"}}
 
 		return repo.Push(&pushoptions)
 	}

types/types.go

@@ -246,6 +246,7 @@ type GenRepo struct {
 	CreateOrg    bool       `yaml:"createorg"`
 	Visibility   Visibility `yaml:"visibility"`
 	Filter       Filter     `yaml:"filter"`
+	Force        bool       `yaml:"force"`
 	Contributed  bool       `yaml:"contributed"`
 }