Merge pull request #88 from distorhead/cherryPickCommonDirSupport

storage: filesystem, support .git/commondir repository layout

1 files changed, 124 insertions, 0 deletions

diff --git a/storage/filesystem/dotgit/repository_filesystem_test.go b/storage/filesystem/dotgit/repository_filesystem_test.go
new file mode 100644
index 0000000..880ec0d
--- /dev/null
+++ b/storage/filesystem/dotgit/repository_filesystem_test.go
@@ -0,0 +1,124 @@
+package dotgit
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+
+	"github.com/go-git/go-billy/v5/osfs"
+
+	. "gopkg.in/check.v1"
+)
+
+func (s *SuiteDotGit) TestRepositoryFilesystem(c *C) {
+	dir, err := ioutil.TempDir("", "repository_filesystem")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer os.RemoveAll(dir)
+
+	fs := osfs.New(dir)
+
+	err = fs.MkdirAll("dotGit", 0777)
+	c.Assert(err, IsNil)
+	dotGitFs, err := fs.Chroot("dotGit")
+	c.Assert(err, IsNil)
+
+	err = fs.MkdirAll("commonDotGit", 0777)
+	c.Assert(err, IsNil)
+	commonDotGitFs, err := fs.Chroot("commonDotGit")
+	c.Assert(err, IsNil)
+
+	repositoryFs := NewRepositoryFilesystem(dotGitFs, commonDotGitFs)
+	c.Assert(repositoryFs.Root(), Equals, dotGitFs.Root())
+
+	somedir, err := repositoryFs.Chroot("somedir")
+	c.Assert(err, IsNil)
+	c.Assert(somedir.Root(), Equals, repositoryFs.Join(dotGitFs.Root(), "somedir"))
+
+	_, err = repositoryFs.Create("somefile")
+	c.Assert(err, IsNil)
+
+	_, err = repositoryFs.Stat("somefile")
+	c.Assert(err, IsNil)
+
+	file, err := repositoryFs.Open("somefile")
+	c.Assert(err, IsNil)
+	err = file.Close()
+	c.Assert(err, IsNil)
+
+	file, err = repositoryFs.OpenFile("somefile", os.O_RDONLY, 0666)
+	c.Assert(err, IsNil)
+	err = file.Close()
+	c.Assert(err, IsNil)
+
+	file, err = repositoryFs.Create("somefile2")
+	c.Assert(err, IsNil)
+	err = file.Close()
+	c.Assert(err, IsNil)
+	_, err = repositoryFs.Stat("somefile2")
+	c.Assert(err, IsNil)
+	err = repositoryFs.Rename("somefile2", "newfile")
+	c.Assert(err, IsNil)
+
+	tempDir, err := repositoryFs.TempFile("tmp", "myprefix")
+	c.Assert(err, IsNil)
+	c.Assert(repositoryFs.Join(repositoryFs.Root(), "tmp", tempDir.Name()), Equals, repositoryFs.Join(dotGitFs.Root(), "tmp", tempDir.Name()))
+
+	err = repositoryFs.Symlink("newfile", "somelink")
+	c.Assert(err, IsNil)
+
+	_, err = repositoryFs.Lstat("somelink")
+	c.Assert(err, IsNil)
+
+	link, err := repositoryFs.Readlink("somelink")
+	c.Assert(err, IsNil)
+	c.Assert(link, Equals, "newfile")
+
+	err = repositoryFs.Remove("somelink")
+	c.Assert(err, IsNil)
+
+	_, err = repositoryFs.Stat("somelink")
+	c.Assert(os.IsNotExist(err), Equals, true)
+
+	dirs := []string{objectsPath, refsPath, packedRefsPath, configPath, branchesPath, hooksPath, infoPath, remotesPath, logsPath, shallowPath, worktreesPath}
+	for _, dir := range dirs {
+		err := repositoryFs.MkdirAll(dir, 0777)
+		c.Assert(err, IsNil)
+		_, err = commonDotGitFs.Stat(dir)
+		c.Assert(err, IsNil)
+		_, err = dotGitFs.Stat(dir)
+		c.Assert(os.IsNotExist(err), Equals, true)
+	}
+
+	exceptionsPaths := []string{repositoryFs.Join(logsPath, "HEAD"), repositoryFs.Join(refsPath, "bisect"), repositoryFs.Join(refsPath, "rewritten"), repositoryFs.Join(refsPath, "worktree")}
+	for _, path := range exceptionsPaths {
+		_, err := repositoryFs.Create(path)
+		c.Assert(err, IsNil)
+		_, err = commonDotGitFs.Stat(path)
+		c.Assert(os.IsNotExist(err), Equals, true)
+		_, err = dotGitFs.Stat(path)
+		c.Assert(err, IsNil)
+	}
+
+	err = repositoryFs.MkdirAll("refs/heads", 0777)
+	c.Assert(err, IsNil)
+	_, err = commonDotGitFs.Stat("refs/heads")
+	c.Assert(err, IsNil)
+	_, err = dotGitFs.Stat("refs/heads")
+	c.Assert(os.IsNotExist(err), Equals, true)
+
+	err = repositoryFs.MkdirAll("objects/pack", 0777)
+	c.Assert(err, IsNil)
+	_, err = commonDotGitFs.Stat("objects/pack")
+	c.Assert(err, IsNil)
+	_, err = dotGitFs.Stat("objects/pack")
+	c.Assert(os.IsNotExist(err), Equals, true)
+
+	err = repositoryFs.MkdirAll("a/b/c", 0777)
+	c.Assert(err, IsNil)
+	_, err = commonDotGitFs.Stat("a/b/c")
+	c.Assert(os.IsNotExist(err), Equals, true)
+	_, err = dotGitFs.Stat("a/b/c")
+	c.Assert(err, IsNil)
+}