rename dagger.mod.cue to dagger.mod and remove the need for module name

Signed-off-by: Tihomir Jovicic <tihomir.jovicic.develop@gmail.com>

cmd/dagger/cmd/mod/file.go

@@ -16,13 +16,12 @@ import (
 	"github.com/spf13/viper"
 )
 
-const filePath = "./cue.mod/dagger.mod.cue"
+const filePath = "./cue.mod/dagger.mod"
 const destBasePath = "./cue.mod/pkg"
 const tmpBasePath = "./cue.mod/tmp"
 
 // A file is the parsed, interpreted form of a cue.mod file.
 type file struct {
-	module  string
 	require []*require
 
 	workspacePath string
@@ -61,18 +60,9 @@ func read(f io.Reader) (*file, error) {
 
 	lines := nonEmptyLines(b)
 
-	if len(lines) == 0 {
-		return nil, fmt.Errorf("cue.mod/dagger.mod.cue file is empty, missing module name")
-	}
-
-	var module string
-	if split := strings.Split(lines[0], " "); len(split) > 1 {
-		module = strings.Trim(split[1], "\"")
-	}
-
 	var requires []*require
-	for i := 1; i < len(lines); i++ {
-		split := strings.Split(lines[i], " ")
+	for _, line := range lines {
+		split := strings.Split(line, " ")
 		r, err := parseArgument(split[0])
 		if err != nil {
 			return nil, err
@@ -84,7 +74,6 @@ func read(f io.Reader) (*file, error) {
 	}
 
 	return &file{
-		module:  module,
 		require: requires,
 	}, nil
 }
@@ -184,7 +173,6 @@ func (f *file) write() error {
 func (f *file) contents() *bytes.Buffer {
 	var b bytes.Buffer
 
-	b.WriteString(fmt.Sprintf("module: %s\n\n", f.module))
 	for _, r := range f.require {
 		b.WriteString(fmt.Sprintf("%s %s\n", r.fullPath(), r.version))
 	}

cmd/dagger/cmd/mod/file_test.go

@@ -11,25 +11,13 @@ func TestReadFile(t *testing.T) {
 		input string
 		want  *file
 	}{
-		{
-			name: "module file without dependencies",
-			input: `
-				module: "alpha.dagger.io"
-			`,
-			want: &file{
-				module: "alpha.dagger.io",
-			},
-		},
 		{
 			name: "module file with valid dependencies",
 			input: `
-				module: "alpha.dagger.io"
-	
 				github.com/tjovicic/test xyz
 				github.com/bla/bla abc
 			`,
 			want: &file{
-				module: "alpha.dagger.io",
 				require: []*require{
 					{
 						repo:    "github.com/tjovicic/test",
@@ -53,10 +41,6 @@ func TestReadFile(t *testing.T) {
 				t.Error(err)
 			}
 
-			if got.module != c.want.module {
-				t.Errorf("module names differ: want %s, got %s", c.want.module, got.module)
-			}
-
 			if len(got.require) != len(c.want.require) {
 				t.Errorf("requires length differs: want %d, got %d", len(c.want.require), len(got.require))
 			}

docs/learn/1011-package-manager.md

@@ -71,9 +71,7 @@ cue.mod/pkg/github.com/
             └── source.cue
 ```
 
-```cue title="./cue.mod/dagger.mod.cue"
-module: main
-
+```cue title="./cue.mod/dagger.mod"
 github.com/tjovicic/dagger-modules/gcpcloudrun v0.1
 ```
 
@@ -115,8 +113,6 @@ You should see similar output:
 
 And `cue.mod/dagger.mod.cue` should reflect the new version:
 
-```cue title="./cue.mod/dagger.mod.cue"
-module: main
-
+```cue title="./cue.mod/dagger.mod"
 github.com/tjovicic/dagger-modules/gcpcloudrun v0.2
 ```