Display original author and URL information when showing migrated issues/comments (#7352)

* Store original author info for migrated issues and comments

Keep original author name for displaying in Gitea interface and also
store original author user ID for potential future use in linking
accounts from old location.

* Add original_url for repo

Store the original URL for a migrated repo

Clean up migrations/tests

* fix migration

* fix golangci-lint

* make 'make revive' happy also

* Modify templates to use OriginalAuthor if set

Use the original author name in templates if it is set rather than the
user who migrated/currently owns the issues

* formatting fixes

* make generate-swagger

* Use default avatar for imported comments

* Remove no longer used IgnoreIssueAuthor option

* Add OriginalAuthorID to swagger also

5 files changed, 80 insertions, 23 deletions

diff --git a/models/issue.go b/models/issue.go
index b5504beb71..63074cd40c 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -25,27 +25,29 @@ import (
 
 // Issue represents an issue or pull request of repository.
 type Issue struct {
-	ID              int64       `xorm:"pk autoincr"`
-	RepoID          int64       `xorm:"INDEX UNIQUE(repo_index)"`
-	Repo            *Repository `xorm:"-"`
-	Index           int64       `xorm:"UNIQUE(repo_index)"` // Index in one repository.
-	PosterID        int64       `xorm:"INDEX"`
-	Poster          *User       `xorm:"-"`
-	Title           string      `xorm:"name"`
-	Content         string      `xorm:"TEXT"`
-	RenderedContent string      `xorm:"-"`
-	Labels          []*Label    `xorm:"-"`
-	MilestoneID     int64       `xorm:"INDEX"`
-	Milestone       *Milestone  `xorm:"-"`
-	Priority        int
-	AssigneeID      int64        `xorm:"-"`
-	Assignee        *User        `xorm:"-"`
-	IsClosed        bool         `xorm:"INDEX"`
-	IsRead          bool         `xorm:"-"`
-	IsPull          bool         `xorm:"INDEX"` // Indicates whether is a pull request or not.
-	PullRequest     *PullRequest `xorm:"-"`
-	NumComments     int
-	Ref             string
+	ID               int64       `xorm:"pk autoincr"`
+	RepoID           int64       `xorm:"INDEX UNIQUE(repo_index)"`
+	Repo             *Repository `xorm:"-"`
+	Index            int64       `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+	PosterID         int64       `xorm:"INDEX"`
+	Poster           *User       `xorm:"-"`
+	OriginalAuthor   string
+	OriginalAuthorID int64
+	Title            string     `xorm:"name"`
+	Content          string     `xorm:"TEXT"`
+	RenderedContent  string     `xorm:"-"`
+	Labels           []*Label   `xorm:"-"`
+	MilestoneID      int64      `xorm:"INDEX"`
+	Milestone        *Milestone `xorm:"-"`
+	Priority         int
+	AssigneeID       int64        `xorm:"-"`
+	Assignee         *User        `xorm:"-"`
+	IsClosed         bool         `xorm:"INDEX"`
+	IsRead           bool         `xorm:"-"`
+	IsPull           bool         `xorm:"INDEX"` // Indicates whether is a pull request or not.
+	PullRequest      *PullRequest `xorm:"-"`
+	NumComments      int
+	Ref              string
 
 	DeadlineUnix util.TimeStamp `xorm:"INDEX"`
 
diff --git a/models/issue_comment.go b/models/issue_comment.go
index c9f1bd9d5f..b930b0b12a 100644
--- a/models/issue_comment.go
+++ b/models/issue_comment.go
@@ -101,8 +101,10 @@ const (
 type Comment struct {
 	ID               int64 `xorm:"pk autoincr"`
 	Type             CommentType
-	PosterID         int64  `xorm:"INDEX"`
-	Poster           *User  `xorm:"-"`
+	PosterID         int64 `xorm:"INDEX"`
+	Poster           *User `xorm:"-"`
+	OriginalAuthor   string
+	OriginalAuthorID int64
 	IssueID          int64  `xorm:"INDEX"`
 	Issue            *Issue `xorm:"-"`
 	LabelID          int64
diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index ef43b0453b..62fadf5f36 100644
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -232,6 +232,8 @@ var migrations = []Migration{
 	NewMigration("add avatar field to repository", addAvatarFieldToRepository),
 	// v88 -> v89
 	NewMigration("add commit status context field to commit_status", addCommitStatusContext),
+	// v89 -> v90
+	NewMigration("add original author/url migration info to issues, comments, and repo ", addOriginalMigrationInfo),
 }
 
 // Migrate database to current version
diff --git a/models/migrations/v89.go b/models/migrations/v89.go
new file mode 100644
index 0000000000..83d0b1a8b9
--- /dev/null
+++ b/models/migrations/v89.go
@@ -0,0 +1,36 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import "github.com/go-xorm/xorm"
+
+func addOriginalMigrationInfo(x *xorm.Engine) error {
+	// Issue see models/issue.go
+	type Issue struct {
+		OriginalAuthor   string
+		OriginalAuthorID int64
+	}
+
+	if err := x.Sync2(new(Issue)); err != nil {
+		return err
+	}
+
+	// Issue see models/issue_comment.go
+	type Comment struct {
+		OriginalAuthor   string
+		OriginalAuthorID int64
+	}
+
+	if err := x.Sync2(new(Comment)); err != nil {
+		return err
+	}
+
+	// Issue see models/repo.go
+	type Repository struct {
+		OriginalURL string
+	}
+
+	return x.Sync2(new(Repository))
+}
diff --git a/models/repo.go b/models/repo.go
index 59ce18fa88..9bedeba952 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -136,6 +136,7 @@ type Repository struct {
 	Name          string `xorm:"INDEX NOT NULL"`
 	Description   string
 	Website       string
+	OriginalURL   string
 	DefaultBranch string
 
 	NumWatches          int
@@ -847,6 +848,7 @@ func (repo *Repository) CloneLink() (cl *CloneLink) {
 type MigrateRepoOptions struct {
 	Name                 string
 	Description          string
+	OriginalURL          string
 	IsPrivate            bool
 	IsMirror             bool
 	RemoteAddr           string
@@ -878,6 +880,7 @@ func MigrateRepository(doer, u *User, opts MigrateRepoOptions) (*Repository, err
 	repo, err := CreateRepository(doer, u, CreateRepoOptions{
 		Name:        opts.Name,
 		Description: opts.Description,
+		OriginalURL: opts.OriginalURL,
 		IsPrivate:   opts.IsPrivate,
 		IsMirror:    opts.IsMirror,
 	})
@@ -1092,6 +1095,7 @@ func initRepoCommit(tmpPath string, sig *git.Signature) (err error) {
 type CreateRepoOptions struct {
 	Name        string
 	Description string
+	OriginalURL string
 	Gitignores  string
 	License     string
 	Readme      string
@@ -1358,6 +1362,7 @@ func CreateRepository(doer, u *User, opts CreateRepoOptions) (_ *Repository, err
 		Name:                            opts.Name,
 		LowerName:                       strings.ToLower(opts.Name),
 		Description:                     opts.Description,
+		OriginalURL:                     opts.OriginalURL,
 		IsPrivate:                       opts.IsPrivate,
 		IsFsckEnabled:                   !opts.IsMirror,
 		CloseIssuesViaCommitInAnyBranch: setting.Repository.DefaultCloseIssuesViaCommitsInAnyBranch,
@@ -2678,3 +2683,13 @@ func (repo *Repository) DeleteAvatar() error {
 	}
 	return sess.Commit()
 }
+
+// GetOriginalURLHostname returns the hostname of a URL or the URL
+func (repo *Repository) GetOriginalURLHostname() string {
+	u, err := url.Parse(repo.OriginalURL)
+	if err != nil {
+		return repo.OriginalURL
+	}
+
+	return u.Host
+}