add test coverage for original author conversion during migrations (#18506)

* add test coverage for original author conversion during migrations

And create a function to factorize a code snippet that is repeated
five times and would otherwise be more difficult to test and maintain
consistently.

Signed-off-by: Loïc Dachary <loic@dachary.org>

* fix variable scope and int64 formatting

* add missing calls to remapExternalUser and fix misplaced %d

Co-authored-by: Loïc Dachary <loic@dachary.org>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

models/fixtures/external_login_user.yml

@@ -0,0 +1 @@
+[] # empty

models/issue.go

@@ -2329,3 +2329,20 @@ func deleteIssuesByRepoID(sess db.Engine, repoID int64) (attachmentPaths []strin
 
 	return
 }
+
+// RemapExternalUser ExternalUserRemappable interface
+func (issue *Issue) RemapExternalUser(externalName string, externalID, userID int64) error {
+	issue.OriginalAuthor = externalName
+	issue.OriginalAuthorID = externalID
+	issue.PosterID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (issue *Issue) GetUserID() int64 { return issue.PosterID }
+
+// GetExternalName ExternalUserRemappable interface
+func (issue *Issue) GetExternalName() string { return issue.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (issue *Issue) GetExternalID() int64 { return issue.OriginalAuthorID }

models/issue_comment.go

@@ -1464,3 +1464,20 @@ func commitBranchCheck(gitRepo *git.Repository, startCommit *git.Commit, endComm
 	}
 	return nil
 }
+
+// RemapExternalUser ExternalUserRemappable interface
+func (c *Comment) RemapExternalUser(externalName string, externalID, userID int64) error {
+	c.OriginalAuthor = externalName
+	c.OriginalAuthorID = externalID
+	c.PosterID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (c *Comment) GetUserID() int64 { return c.PosterID }
+
+// GetExternalName ExternalUserRemappable interface
+func (c *Comment) GetExternalName() string { return c.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (c *Comment) GetExternalID() int64 { return c.OriginalAuthorID }

models/issue_reaction.go

@@ -343,3 +343,20 @@ func (list ReactionList) GetMoreUserCount() int {
 	}
 	return len(list) - setting.UI.ReactionMaxUserNum
 }
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Reaction) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.UserID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (r *Reaction) GetUserID() int64 { return r.UserID }
+
+// GetExternalName ExternalUserRemappable interface
+func (r *Reaction) GetExternalName() string { return r.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (r *Reaction) GetExternalID() int64 { return r.OriginalAuthorID }

models/release.go

@@ -456,3 +456,20 @@ func SaveOrUpdateTag(repo *repo_model.Repository, newRel *Release) error {
 	}
 	return nil
 }
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Release) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.PublisherID = userID
+	return nil
+}
+
+// UserID ExternalUserRemappable interface
+func (r *Release) GetUserID() int64 { return r.PublisherID }
+
+// ExternalName ExternalUserRemappable interface
+func (r *Release) GetExternalName() string { return r.OriginalAuthor }
+
+// ExternalID ExternalUserRemappable interface
+func (r *Release) GetExternalID() int64 { return r.OriginalAuthorID }

models/review.go

@@ -987,3 +987,20 @@ func (r *Review) HTMLURL() string {
 	}
 	return comment.HTMLURL()
 }
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Review) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.ReviewerID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (r *Review) GetUserID() int64 { return r.ReviewerID }
+
+// GetExternalName ExternalUserRemappable interface
+func (r *Review) GetExternalName() string { return r.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (r *Review) GetExternalID() int64 { return r.OriginalAuthorID }

models/user/external_login_user.go

@@ -68,6 +68,17 @@ type ExternalLoginUser struct {
 	ExpiresAt         time.Time
 }
 
+type ExternalUserMigrated interface {
+	GetExternalName() string
+	GetExternalID() int64
+}
+
+type ExternalUserRemappable interface {
+	GetUserID() int64
+	RemapExternalUser(externalName string, externalID, userID int64) error
+	ExternalUserMigrated
+}
+
 func init() {
 	db.RegisterModel(new(ExternalLoginUser))
 }