Merge pull request #669 from keybase/strib/gh-gc

storage/repository: add new functions for garbage collection

1 files changed, 73 insertions, 0 deletions

diff --git a/prune_test.go b/prune_test.go
new file mode 100644
index 0000000..60652ec
--- /dev/null
+++ b/prune_test.go
@@ -0,0 +1,73 @@
+package git
+
+import (
+	"time"
+
+	"gopkg.in/src-d/go-git.v4/plumbing"
+	"gopkg.in/src-d/go-git.v4/plumbing/storer"
+	"gopkg.in/src-d/go-git.v4/storage"
+	"gopkg.in/src-d/go-git.v4/storage/filesystem"
+
+	. "gopkg.in/check.v1"
+	"gopkg.in/src-d/go-git-fixtures.v3"
+)
+
+type PruneSuite struct {
+	BaseSuite
+}
+
+var _ = Suite(&PruneSuite{})
+
+func (s *PruneSuite) testPrune(c *C, deleteTime time.Time) {
+	srcFs := fixtures.ByTag("unpacked").One().DotGit()
+	var sto storage.Storer
+	var err error
+	sto, err = filesystem.NewStorage(srcFs)
+	c.Assert(err, IsNil)
+
+	los := sto.(storer.LooseObjectStorer)
+	c.Assert(los, NotNil)
+
+	count := 0
+	err = los.ForEachObjectHash(func(_ plumbing.Hash) error {
+		count++
+		return nil
+	})
+	c.Assert(err, IsNil)
+
+	r, err := Open(sto, srcFs)
+	c.Assert(err, IsNil)
+	c.Assert(r, NotNil)
+
+	// Remove a branch so we can prune some objects.
+	err = sto.RemoveReference(plumbing.ReferenceName("refs/heads/v4"))
+	c.Assert(err, IsNil)
+	err = sto.RemoveReference(plumbing.ReferenceName("refs/remotes/origin/v4"))
+	c.Assert(err, IsNil)
+
+	err = r.Prune(PruneOptions{
+		OnlyObjectsOlderThan: deleteTime,
+		Handler:              r.DeleteObject,
+	})
+	c.Assert(err, IsNil)
+
+	newCount := 0
+	err = los.ForEachObjectHash(func(_ plumbing.Hash) error {
+		newCount++
+		return nil
+	})
+	if deleteTime.IsZero() {
+		c.Assert(newCount < count, Equals, true)
+	} else {
+		// Assume a delete time older than any of the objects was passed in.
+		c.Assert(newCount, Equals, count)
+	}
+}
+
+func (s *PruneSuite) TestPrune(c *C) {
+	s.testPrune(c, time.Time{})
+}
+
+func (s *PruneSuite) TestPruneWithNoDelete(c *C) {
+	s.testPrune(c, time.Unix(0, 1))
+}