feat: enable empty owner repositories

lib/mod/cache/util.go

@@ -13,6 +13,10 @@ func parseModURL(mod string) (remote, owner, repo string) {
 		flds = strings.Split(mod, "/")
 	}
 
+	if len(flds) < 3 {
+		return flds[0], "", flds[1]
+	}
+
 	return flds[0], flds[1], flds[2]
 }
 

lib/mod/cache/util_test.go

@@ -1,7 +1,7 @@
 package cache
 
 import (
-	"fmt"
+	"path"
 	"testing"
 )
 
@@ -15,13 +15,15 @@ func TestSplitMod(t *testing.T) {
 		"complex":            {mod: "gitlab.com/owner/repo.git/submodule", expected: "gitlab.com/owner/repo"},
 		"subgroup":           {mod: "gitlab.com/owner/subgroup/repo.git", expected: "gitlab.com/owner/subgroup/repo"},
 		"subgroup+submodule": {mod: "gitlab.com/owner/subgroup/repo.git/submodule", expected: "gitlab.com/owner/subgroup/repo"},
+		"small":              {mod: "cuelang.org/go", expected: "cuelang.org/go"},
 	}
 
 	for name, tc := range tests {
 		t.Run(name, func(t *testing.T) {
 			rm, o, rp := parseModURL(tc.mod)
-			if fmt.Sprintf("%s/%s/%s", rm, o, rp) != tc.expected {
-				t.Fatalf("expected: %v, got: %s/%s/%s", tc.expected, rm, o, rp)
+			got := path.Join(rm, o, rp)
+			if got != tc.expected {
+				t.Fatalf("expected: %v, got: %s", tc.expected, got)
 			}
 		})
 	}

lib/mod/langs/cue.go

@@ -1,7 +1,7 @@
 package langs
 
 const CuelangModder = `
-cue: {
+langs: cue: {
 	Name:          "cue"
 	Version:       "v0.4.0"
 	ModFile:       "cue.mods"

lib/mod/langs/spec.go

@@ -10,6 +10,7 @@ langs: #Spec
 	SumFile:  string,
 	ModsDir:  string,
 	MappingFile: string,
+	PrivateEnvVar?: string,
 
 	NoLoad?: bool,
 	CommandInit?: [...[...string]],

lib/yagu/repos/git/fetch.go

@@ -3,6 +3,7 @@ package git
 import (
 	"fmt"
 	"os"
+	"path"
 	"strings"
 
 	"github.com/go-git/go-billy/v5"
@@ -93,8 +94,9 @@ func CloneRepoRef(srcUrl string, ref *plumbing.Reference) (*GitRepo, error) {
 // FetchGit clone the repository inside FS.
 // If private flag is set, it will look for netrc credentials, fallbacking to SSH
 func FetchGit(FS billy.Filesystem, remote, owner, repo, tag string, private bool) error {
+	srcRepo := path.Join(owner, repo)
 	gco := &gogit.CloneOptions{
-		URL:   fmt.Sprintf("https://%s/%s/%s", remote, owner, repo),
+		URL:   fmt.Sprintf("https://%s/%s", remote, srcRepo),
 		Depth: 1,
 	}
 
@@ -111,9 +113,9 @@ func FetchGit(FS billy.Filesystem, remote, owner, repo, tag string, private bool
 			}
 		} else if ssh, err := SSHCredentials(remote); err == nil {
 			gco.Auth = ssh.Keys
-			gco.URL = fmt.Sprintf("%s@%s:%s/%s", ssh.User, remote, owner, repo)
+			gco.URL = fmt.Sprintf("%s@%s:%s", ssh.User, remote, srcRepo)
 		} else {
-			gco.URL = fmt.Sprintf("%s@%s:%s/%s", "git", remote, owner, repo)
+			gco.URL = fmt.Sprintf("%s@%s:%s", "git", remote, srcRepo)
 		}
 	}
 

lib/yagu/repos/gitlab/fetch.go

@@ -4,6 +4,7 @@ import (
 	"archive/zip"
 	"bytes"
 	"fmt"
+	"path"
 
 	"github.com/xanzy/go-gitlab"
 )
@@ -24,7 +25,7 @@ func fetchShaZip(client *gitlab.Client, pid interface{}, sha string) (*zip.Reade
 }
 
 func FetchZip(client *gitlab.Client, owner, repo, tag string) (*zip.Reader, error) {
-	pid := fmt.Sprintf("%s/%s", owner, repo)
+	pid := path.Join(owner, repo)
 
 	var sha string