diff options
| author | ZauberNerd <zaubernerd@zaubernerd.de> | 2022-03-15 17:02:30 +0000 |
|---|---|---|
| committer | ZauberNerd <zaubernerd@zaubernerd.de> | 2023-03-23 19:49:00 +0100 |
| commit | cdd1e5562d10c6bb19f979ca32f3ae7ef646024f (patch) | |
| tree | bf1afc93f0245323589c5f8715718533c794b5b1 | |
| parent | 3f1cfde283c93f33218c807602e93d47f72f7b90 (diff) | |
| download | go-git-cdd1e5562d10c6bb19f979ca32f3ae7ef646024f.tar.gz | |
plumbing: resolve non-external delta references
In a self-contained pack file delta references might point to base
objects stored later in the file.
In this case we need to replace placeholders for external refs with the
actual base object and update the children references.
Fixes: #484
Co-authored-by: Markus Wolf <mail@markus-wolf.de>
| -rw-r--r-- | go.mod | 2 | ||||
| -rw-r--r-- | go.sum | 4 | ||||
| -rw-r--r-- | plumbing/format/packfile/parser.go | 9 | ||||
| -rw-r--r-- | plumbing/format/packfile/parser_test.go | 13 |
4 files changed, 25 insertions, 3 deletions
@@ -10,7 +10,7 @@ require ( github.com/gliderlabs/ssh v0.3.5 github.com/go-git/gcfg v1.5.0 github.com/go-git/go-billy/v5 v5.4.1 - github.com/go-git/go-git-fixtures/v4 v4.3.1 + github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20230305113008-0c11038e723f github.com/google/go-cmp v0.5.9 github.com/imdario/mergo v0.3.13 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 @@ -24,8 +24,8 @@ github.com/go-git/gcfg v1.5.0/go.mod h1:5m20vg6GwYabIxaOonVkTdrILxQMpEShl1xiMF4u github.com/go-git/go-billy/v5 v5.3.1/go.mod h1:pmpqyWchKfYfrkb/UVH4otLvyi/5gJlGI4Hb3ZqZ3W0= github.com/go-git/go-billy/v5 v5.4.1 h1:Uwp5tDRkPr+l/TnbHOQzp+tmJfLceOlbVucgpTz8ix4= github.com/go-git/go-billy/v5 v5.4.1/go.mod h1:vjbugF6Fz7JIflbVpl1hJsGjSHNltrSw45YK/ukIvQg= -github.com/go-git/go-git-fixtures/v4 v4.3.1 h1:y5z6dd3qi8Hl+stezc8p3JxDkoTRqMAlKnXHuzrfjTQ= -github.com/go-git/go-git-fixtures/v4 v4.3.1/go.mod h1:8LHG1a3SRW71ettAD/jW13h8c6AqjVSeL11RAdgaqpo= +github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20230305113008-0c11038e723f h1:Pz0DHeFij3XFhoBRGUDPzSJ+w2UcK5/0JvF8DRI58r8= +github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20230305113008-0c11038e723f/go.mod h1:8LHG1a3SRW71ettAD/jW13h8c6AqjVSeL11RAdgaqpo= github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38= github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk= diff --git a/plumbing/format/packfile/parser.go b/plumbing/format/packfile/parser.go index 522c146..6012b04 100644 --- a/plumbing/format/packfile/parser.go +++ b/plumbing/format/packfile/parser.go @@ -237,6 +237,15 @@ func (p *Parser) indexObjects() error { return err } + // Move children of placeholder parent into actual parent, in case this + // was a non-external delta reference. + if placeholder, ok := p.oiByHash[sha1]; ok { + ota.Children = placeholder.Children + for _, c := range ota.Children { + c.Parent = ota + } + } + ota.SHA1 = sha1 p.oiByHash[ota.SHA1] = ota } diff --git a/plumbing/format/packfile/parser_test.go b/plumbing/format/packfile/parser_test.go index 651d05f..b8d080f 100644 --- a/plumbing/format/packfile/parser_test.go +++ b/plumbing/format/packfile/parser_test.go @@ -147,6 +147,19 @@ func (s *ParserSuite) TestResolveExternalRefsInThinPack(c *C) { c.Assert(err, IsNil) } +func (s *ParserSuite) TestResolveExternalRefs(c *C) { + extRefsThinPack := fixtures.ByTag("delta-before-base").One() + + scanner := packfile.NewScanner(extRefsThinPack.Packfile()) + + obs := new(testObserver) + parser, err := packfile.NewParser(scanner, obs) + c.Assert(err, IsNil) + + _, err = parser.Parse() + c.Assert(err, IsNil) +} + type observerObject struct { hash string otype plumbing.ObjectType |