Make repository management section handle lfs locks (#8726)

* Make repository maangement section handle lfs locks

* Add check attribute handling and handle locking paths better

* More cleanly check-attributes

* handle error

* Check if file exists in default branch before linking to it.

* fixup

* Properly cleanPath

* Use cleanPath

* Sigh

2 files changed, 86 insertions, 2 deletions

diff --git a/modules/git/repo_attribute.go b/modules/git/repo_attribute.go
new file mode 100644
index 0000000000..c10c96f558
--- /dev/null
+++ b/modules/git/repo_attribute.go
@@ -0,0 +1,84 @@
+// Copyright 2019 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 git
+
+import (
+	"bytes"
+	"fmt"
+
+	"github.com/mcuadros/go-version"
+)
+
+// CheckAttributeOpts represents the possible options to CheckAttribute
+type CheckAttributeOpts struct {
+	CachedOnly    bool
+	AllAttributes bool
+	Attributes    []string
+	Filenames     []string
+}
+
+// CheckAttribute return the Blame object of file
+func (repo *Repository) CheckAttribute(opts CheckAttributeOpts) (map[string]map[string]string, error) {
+	binVersion, err := BinVersion()
+	if err != nil {
+		return nil, fmt.Errorf("Git version missing: %v", err)
+	}
+
+	stdOut := new(bytes.Buffer)
+	stdErr := new(bytes.Buffer)
+
+	cmdArgs := []string{"check-attr", "-z"}
+
+	if opts.AllAttributes {
+		cmdArgs = append(cmdArgs, "-a")
+	} else {
+		for _, attribute := range opts.Attributes {
+			if attribute != "" {
+				cmdArgs = append(cmdArgs, attribute)
+			}
+		}
+	}
+
+	// git check-attr --cached first appears in git 1.7.8
+	if opts.CachedOnly && version.Compare(binVersion, "1.7.8", ">=") {
+		cmdArgs = append(cmdArgs, "--cached")
+	}
+
+	cmdArgs = append(cmdArgs, "--")
+
+	for _, arg := range opts.Filenames {
+		if arg != "" {
+			cmdArgs = append(cmdArgs, arg)
+		}
+	}
+
+	cmd := NewCommand(cmdArgs...)
+
+	if err := cmd.RunInDirPipeline(repo.Path, stdOut, stdErr); err != nil {
+		return nil, fmt.Errorf("Failed to run check-attr: %v\n%s\n%s", err, stdOut.String(), stdErr.String())
+	}
+
+	fields := bytes.Split(stdOut.Bytes(), []byte{'\000'})
+
+	if len(fields)%3 != 1 {
+		return nil, fmt.Errorf("Wrong number of fields in return from check-attr")
+	}
+
+	var name2attribute2info = make(map[string]map[string]string)
+
+	for i := 0; i < (len(fields) / 3); i++ {
+		filename := string(fields[3*i])
+		attribute := string(fields[3*i+1])
+		info := string(fields[3*i+2])
+		attribute2info := name2attribute2info[filename]
+		if attribute2info == nil {
+			attribute2info = make(map[string]string)
+		}
+		attribute2info[attribute] = info
+		name2attribute2info[filename] = attribute2info
+	}
+
+	return name2attribute2info, nil
+}
diff --git a/modules/lfs/locks.go b/modules/lfs/locks.go
index 9ffe6b9d59..b077cd2d0b 100644
--- a/modules/lfs/locks.go
+++ b/modules/lfs/locks.go
@@ -110,7 +110,7 @@ func GetListLockHandler(ctx *context.Context) {
 	}
 
 	//If no query params path or id
-	lockList, err := models.GetLFSLockByRepoID(repository.ID)
+	lockList, err := models.GetLFSLockByRepoID(repository.ID, 0, 0)
 	if err != nil {
 		ctx.JSON(500, api.LFSLockError{
 			Message: "unable to list locks : " + err.Error(),
@@ -220,7 +220,7 @@ func VerifyLockHandler(ctx *context.Context) {
 	}
 
 	//TODO handle body json cursor and limit
-	lockList, err := models.GetLFSLockByRepoID(repository.ID)
+	lockList, err := models.GetLFSLockByRepoID(repository.ID, 0, 0)
 	if err != nil {
 		ctx.JSON(500, api.LFSLockError{
 			Message: "unable to list locks : " + err.Error(),