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Fix restore repo bug, clarify the problem of ForeignIndex (#22776)

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Fix #22581

TLDR: #18446 made a mess with ForeignIndex and triggered a design
flaw/bug of #16356, then a quick patch #21271 helped #18446, then the
the bug was re-triggered by #21721 .

Related:
* #16356
* BasicIssueContext
https://github.com/go-gitea/gitea/pull/16356/files#diff-7938eb670d42a5ead6b08121e16aa4537a4d716c1cf37923c70470020fb9d036R16-R27
* #18446 
* If some issues were dumped without ForeignIndex, then they would be
imported as ForeignIndex=0
https://github.com/go-gitea/gitea/pull/18446/files#diff-1624a3e715d8fc70edf2db1630642b7d6517f8c359cc69d58c3958b34ba4ce5eR38-R39
* #21271
* It patched the above bug (somewhat), made the issues without
ForeignIndex could have the same value as LocalIndex
* #21721 
    * It re-triggered the zero-ForeignIndex bug.


ps: I am not sure whether the changes in `GetForeignIndex` are ideal (at
least, now it has almost the same behavior as BasicIssueContext in
#16356), it's just a quick fix. Feel free to edit on this PR directly or
replace it.

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
wxiaoguang 2023-02-07 09:18:52 +08:00 • committed by GitHub
parent 3ae78bc0a9
commit d5fa2e7510
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3 changed files with 23 additions and 5 deletions
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3
modules/migration/comment.go
View file

@ -8,8 +8,7 @@ import "time"
// Commentable can be commented upon
type Commentable interface {
GetLocalIndex() int64
GetForeignIndex() int64
Reviewable
GetContext() DownloaderContext
}

13
modules/migration/issue.go
View file

@ -34,6 +34,15 @@ func (issue *Issue) GetExternalName() string { return issue.PosterName }
// GetExternalID ExternalUserMigrated interface
func (issue *Issue) GetExternalID() int64 { return issue.PosterID }
func (issue *Issue) GetLocalIndex() int64 { return issue.Number }
func (issue *Issue) GetForeignIndex() int64 { return issue.ForeignIndex }
func (issue *Issue) GetLocalIndex() int64 { return issue.Number }
func (issue *Issue) GetForeignIndex() int64 {
// see the comment of Reviewable.GetForeignIndex
// if there is no ForeignIndex, then use LocalIndex
if issue.ForeignIndex == 0 {
return issue.Number
}
return issue.ForeignIndex
}
func (issue *Issue) GetContext() DownloaderContext { return issue.Context }

12
modules/migration/review.go
View file

@ -8,6 +8,16 @@ import "time"
// Reviewable can be reviewed
type Reviewable interface {
GetLocalIndex() int64
// GetForeignIndex presents the foreign index, which could be misused:
// For example, if there are 2 Gitea sites: site-A exports a dataset, then site-B imports it:
// * if site-A exports files by using its LocalIndex
// * from site-A's view, LocalIndex is site-A's IssueIndex while ForeignIndex is site-B's IssueIndex
// * but from site-B's view, LocalIndex is site-B's IssueIndex while ForeignIndex is site-A's IssueIndex
//
// So the exporting/importing must be paired, but the meaning of them looks confusing then:
// * either site-A and site-B both use LocalIndex during dumping/restoring
// * or site-A and site-B both use ForeignIndex
GetForeignIndex() int64
}
@ -37,7 +47,7 @@ type Review struct {
// GetExternalName ExternalUserMigrated interface
func (r *Review) GetExternalName() string { return r.ReviewerName }
// ExternalID ExternalUserMigrated interface
// GetExternalID ExternalUserMigrated interface
func (r *Review) GetExternalID() int64 { return r.ReviewerID }
// ReviewComment represents a review comment