embed zsh completions as stringdata

completions/completions.go

@@ -3,17 +3,12 @@ package completions
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
-	"path/filepath"
-	"runtime"
 )
 
 type Completion interface {
 	GenerateCompletions(w io.Writer) error
 }
 
-type Zsh struct{}
-
 var completions = map[string]Completion{
 	"zsh": &Zsh{},
 }
@@ -27,20 +22,3 @@ func GetCompletions(shell string) (Completion, error) {
 
 	return completions, nil
 }
-
-func (z *Zsh) GenerateCompletions(w io.Writer) error {
-	_, filename, _, _ := runtime.Caller(0)
-	dir := filepath.Dir(filename)
-	filePath := filepath.Join(dir, "mage.zsh")
-
-	data, err := ioutil.ReadFile(filePath)
-	if err != nil {
-		return err
-	}
-
-	_, err = fmt.Fprint(w, string(data))
-	if err != nil {
-		return err
-	}
-	return nil
-}

completions/completions_test.go

@@ -3,7 +3,6 @@ package completions
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
 	"testing"
 )
 
@@ -58,11 +57,6 @@ func TestGenerateCompletionsFails(t *testing.T) {
 }
 
 func TestGenerateCompletions(t *testing.T) {
-	zshTestData, err := ioutil.ReadFile("mage.zsh")
-	if err != nil {
-		t.Fatalf("expected to get test data, but got error: %v", err)
-	}
-
 	testCases := []struct {
 		name     string
 		cmpl     Completion
@@ -72,7 +66,7 @@ func TestGenerateCompletions(t *testing.T) {
 		{
 			name:     "zsh",
 			cmpl:     &Zsh{},
-			expected: string(zshTestData),
+			expected: string(ZshCompletions),
 			err:      false,
 		},
 	}

completions/mage.zsh → completions/zsh.go

@@ -1,4 +1,11 @@
-#compdef mage
+package completions
+
+import (
+	"fmt"
+	"io"
+)
+
+var ZshCompletions string = `#compdef mage
 
 local curcontext="$curcontext" state line ret=1
 typeset -A opt_args
@@ -65,3 +72,15 @@ return ret
 # sh-basic-offset: 2
 # End:
 # vim: ft=zsh sw=2 ts=2 et
+`
+
+type Zsh struct{}
+
+func (z *Zsh) GenerateCompletions(w io.Writer) error {
+	_, err := fmt.Fprint(w, string(ZshCompletions))
+
+	if err != nil {
+		return err
+	}
+	return nil
+}

mage/main_test.go

@@ -26,6 +26,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/magefile/mage/completions"
 	"github.com/magefile/mage/internal"
 	"github.com/magefile/mage/mg"
 )
@@ -902,10 +903,7 @@ func TestCompletionFlag(t *testing.T) {
 		t.Fatalf("expected code 0, but got %v, %s", code, stderr)
 	}
 	actual := stdout.String()
-	expectedData, err := ioutil.ReadFile("../completions/mage.zsh")
-	if err != nil {
-		t.Fatal(err)
-	}
+	expectedData := completions.ZshCompletions
 	expected := string(expectedData)
 
 	if actual != expected {