Add support for gvt project

README.md

@@ -7,8 +7,13 @@
 [![asciicast](https://asciinema.org/a/168466.png)](https://asciinema.org/a/168466)
 
 `go-thanks` is a cmd line utility to show some love to all the hardworking Gophers, from whose work you profit daily by using their OSS.
-It  automatically detects imported packages from Go package managers ([dep](https://github.com/golang/dep), [Govendor](https://github.com/kardianos/govendor) and [Glide](https://github.com/Masterminds/glide)) 
-and stars package repositories on Github and Gitlab. Inspired by [cargo-thanks](https://github.com/softprops/cargo-thanks) from the Rust ecosystem.
+It  automatically detects imported packages and stars their repositories on Github and Gitlab from following Go package managers:
+- [dep](https://github.com/golang/dep)
+- [Govendor](https://github.com/kardianos/govendor) 
+- [Glide](https://github.com/Masterminds/glide)
+- [gvt](https://github.com/FiloSottile/gvt)
+
+Inspired by [cargo-thanks](https://github.com/softprops/cargo-thanks) from the Rust ecosystem.
 
 ## Installation
 ```

discover/discover.go

@@ -9,11 +9,12 @@ type Discoverer interface {
 	Repositories(path string) (RepoMap, error)
 }
 
+var discoverers = []Discoverer{Dep{}, Glide{}, Govendor{}, Gvt{}}
+
 // Repositories produces a slice of repositories extracted from the passed in discoverers within one's Go project.
 func Repositories(path string) ([]Repository, error) {
-	discoverers := []Discoverer{Dep{}, Glide{}, Govendor{}}
-
 	repoMap := make(RepoMap)
+
 	for _, d := range discoverers {
 		if inUse, err := d.InUse(path); !inUse || err != nil {
 			continue

discover/discover_test.go

@@ -117,6 +117,18 @@ func TestDiscoverRepositories(t *testing.T) {
 			},
 			wantErr: nil,
 		},
+		{
+			name: "gvt",
+			path: path.Join("test", "project_gvt"),
+			wantRepos: []Repository{
+				{
+					Name:  "gocovmerge",
+					Owner: "wadey",
+					URL:   "github.com/wadey/gocovmerge",
+				},
+			},
+			wantErr: nil,
+		},
 		{
 			name:      "nothing to be found",
 			path:      path.Join("test", "project_none"),
@@ -133,6 +145,11 @@ func TestDiscoverRepositories(t *testing.T) {
 			path:    path.Join("test", "project_errors_govendor"),
 			wantErr: errors.New(""),
 		},
+		{
+			name:    "errors from gvt",
+			path:    path.Join("test", "project_errors_gvt"),
+			wantErr: errors.New(""),
+		},
 		{
 			name:    "errors from all except dep still errors out",
 			path:    path.Join("test", "project_errors_dep_ok"),

discover/gvt.go

@@ -0,0 +1,66 @@
+package discover
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"os"
+	"path"
+)
+
+// Gvt is a discoverer for gvt Go package manager.
+type Gvt struct{}
+
+// Name returns name of Gvt discoverer.
+func (g Gvt) Name() string {
+	return "gvt"
+}
+
+// InUse checks whether project is using gvt as a package manager.
+func (g Gvt) InUse(projectPath string) (bool, error) {
+	_, err := os.Stat(gvtFilePath(projectPath))
+	if err != nil {
+		return false, err
+	}
+
+	return true, nil
+}
+
+func gvtFilePath(projectPath string) string {
+	return path.Join(projectPath, "vendor", "manifest")
+}
+
+// Repositories discovers repositories belonging to packages imported inside a project managed by Gvt.
+func (g Gvt) Repositories(projectPath string) (RepoMap, error) {
+	list, err := packageListGvt(projectPath)
+	if err != nil {
+		return nil, err
+	}
+
+	repoMap := RepoMap{}
+	for _, p := range list.Dependencies {
+		repoMap.add(p.Importpath)
+	}
+
+	return repoMap, nil
+}
+
+type gvtList struct {
+	Dependencies []struct {
+		Importpath string `json:"importpath"`
+	} `json:"dependencies"`
+}
+
+func packageListGvt(projectPath string) (gvtList, error) {
+	list := gvtList{}
+
+	content, err := ioutil.ReadFile(gvtFilePath(projectPath))
+	if err != nil {
+		return gvtList{}, err
+	}
+	err = json.Unmarshal(content, &list)
+	if err != nil {
+		return gvtList{}, err
+	}
+
+	return list, nil
+}

discover/test/project_errors_gvt/vendor/manifest

@@ -0,0 +1 @@
+MISSING JSON

discover/test/project_gvt/vendor/manifest

@@ -0,0 +1,13 @@
+{
+	"generator": "github.com/FiloSottile/gvt",
+	"dependencies": [
+		{
+			"importpath": "github.com/wadey/gocovmerge",
+			"repository": "https://github.com/wadey/gocovmerge",
+			"vcs": "git",
+			"revision": "b5bfa59ec0adc420475f97f89b58045c721d761c",
+			"branch": "master",
+			"notests": true
+		}
+	]
+}