Add LFS Migration and Mirror (#14726)

* Implemented LFS client.

* Implemented scanning for pointer files.

* Implemented downloading of lfs files.

* Moved model-dependent code into services.

* Removed models dependency. Added TryReadPointerFromBuffer.

* Migrated code from service to module.

* Centralised storage creation.

* Removed dependency from models.

* Moved ContentStore into modules.

* Share structs between server and client.

* Moved method to services.

* Implemented lfs download on clone.

* Implemented LFS sync on clone and mirror update.

* Added form fields.

* Updated templates.

* Fixed condition.

* Use alternate endpoint.

* Added missing methods.

* Fixed typo and make linter happy.

* Detached pointer parser from gogit dependency.

* Fixed TestGetLFSRange test.

* Added context to support cancellation.

* Use ReadFull to probably read more data.

* Removed duplicated code from models.

* Moved scan implementation into pointer_scanner_nogogit.

* Changed method name.

* Added comments.

* Added more/specific log/error messages.

* Embedded lfs.Pointer into models.LFSMetaObject.

* Moved code from models to module.

* Moved code from models to module.

* Moved code from models to module.

* Reduced pointer usage.

* Embedded type.

* Use promoted fields.

* Fixed unexpected eof.

* Added unit tests.

* Implemented migration of local file paths.

* Show an error on invalid LFS endpoints.

* Hide settings if not used.

* Added LFS info to mirror struct.

* Fixed comment.

* Check LFS endpoint.

* Manage LFS settings from mirror page.

* Fixed selector.

* Adjusted selector.

* Added more tests.

* Added local filesystem migration test.

* Fixed typo.

* Reset settings.

* Added special windows path handling.

* Added unit test for HTTPClient.

* Added unit test for BasicTransferAdapter.

* Moved into util package.

* Test if LFS endpoint is allowed.

* Added support for git://

* Just use a static placeholder as the displayed url may be invalid.

* Reverted to original code.

* Added "Advanced Settings".

* Updated wording.

* Added discovery info link.

* Implemented suggestion.

* Fixed missing format parameter.

* Added Pointer.IsValid().

* Always remove model on error.

* Added suggestions.

* Use channel instead of array.

* Update routers/repo/migrate.go

* fmt

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>

1 files changed, 117 insertions, 0 deletions

diff --git a/integrations/lfs_local_endpoint_test.go b/integrations/lfs_local_endpoint_test.go
new file mode 100644
index 0000000000..eda418c429
--- /dev/null
+++ b/integrations/lfs_local_endpoint_test.go
@@ -0,0 +1,117 @@
+// Copyright 2021 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 integrations
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/url"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/modules/lfs"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func str2url(raw string) *url.URL {
+	u, _ := url.Parse(raw)
+	return u
+}
+
+func TestDetermineLocalEndpoint(t *testing.T) {
+	defer prepareTestEnv(t)()
+
+	root, _ := ioutil.TempDir("", "lfs_test")
+	defer os.RemoveAll(root)
+
+	rootdotgit, _ := ioutil.TempDir("", "lfs_test")
+	defer os.RemoveAll(rootdotgit)
+	os.Mkdir(filepath.Join(rootdotgit, ".git"), 0700)
+
+	lfsroot, _ := ioutil.TempDir("", "lfs_test")
+	defer os.RemoveAll(lfsroot)
+
+	// Test cases
+	var cases = []struct {
+		cloneurl string
+		lfsurl   string
+		expected *url.URL
+	}{
+		// case 0
+		{
+			cloneurl: root,
+			lfsurl:   "",
+			expected: str2url(fmt.Sprintf("file://%s", root)),
+		},
+		// case 1
+		{
+			cloneurl: root,
+			lfsurl:   lfsroot,
+			expected: str2url(fmt.Sprintf("file://%s", lfsroot)),
+		},
+		// case 2
+		{
+			cloneurl: "https://git.com/repo.git",
+			lfsurl:   lfsroot,
+			expected: str2url(fmt.Sprintf("file://%s", lfsroot)),
+		},
+		// case 3
+		{
+			cloneurl: rootdotgit,
+			lfsurl:   "",
+			expected: str2url(fmt.Sprintf("file://%s", filepath.Join(rootdotgit, ".git"))),
+		},
+		// case 4
+		{
+			cloneurl: "",
+			lfsurl:   rootdotgit,
+			expected: str2url(fmt.Sprintf("file://%s", filepath.Join(rootdotgit, ".git"))),
+		},
+		// case 5
+		{
+			cloneurl: rootdotgit,
+			lfsurl:   rootdotgit,
+			expected: str2url(fmt.Sprintf("file://%s", filepath.Join(rootdotgit, ".git"))),
+		},
+		// case 6
+		{
+			cloneurl: fmt.Sprintf("file://%s", root),
+			lfsurl:   "",
+			expected: str2url(fmt.Sprintf("file://%s", root)),
+		},
+		// case 7
+		{
+			cloneurl: fmt.Sprintf("file://%s", root),
+			lfsurl:   fmt.Sprintf("file://%s", lfsroot),
+			expected: str2url(fmt.Sprintf("file://%s", lfsroot)),
+		},
+		// case 8
+		{
+			cloneurl: root,
+			lfsurl:   fmt.Sprintf("file://%s", lfsroot),
+			expected: str2url(fmt.Sprintf("file://%s", lfsroot)),
+		},
+		// case 9
+		{
+			cloneurl: "",
+			lfsurl:   "/does/not/exist",
+			expected: nil,
+		},
+		// case 10
+		{
+			cloneurl: "",
+			lfsurl:   "file:///does/not/exist",
+			expected: str2url("file:///does/not/exist"),
+		},
+	}
+
+	for n, c := range cases {
+		ep := lfs.DetermineEndpoint(c.cloneurl, c.lfsurl)
+
+		assert.Equal(t, c.expected, ep, "case %d: error should match", n)
+	}
+}