Add hyperlink template function (#72)

Relates to cli/cli#6179

pkg/template/template.go

@@ -47,6 +47,7 @@ func (t *Template) Parse(tmpl string) error {
 	templateFuncs := map[string]interface{}{
 		"autocolor": colorFunc,
 		"color":     colorFunc,
+		"hyperlink": hyperlinkFunc,
 		"join":      joinFunc,
 		"pluck":     pluckFunc,
 		"tablerender": func() (string, error) {
@@ -233,3 +234,12 @@ func truncateMultiline(maxWidth int, s string) string {
 	}
 	return text.Truncate(maxWidth, s)
 }
+
+func hyperlinkFunc(link, text string) string {
+	if text == "" {
+		text = link
+	}
+
+	// See https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda
+	return fmt.Sprintf("\x1b]8;;%s\x1b\\%s\x1b]8;;\x1b\\", link, text)
+}

pkg/template/template_test.go

@@ -322,6 +322,22 @@ func TestExecute(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		{
+			name: "hyperlink enabled",
+			args: args{
+				json:     strings.NewReader(`{"link":"https://github.com"}`),
+				template: `{{ hyperlink .link "" }}`,
+			},
+			wantW: "\x1b]8;;https://github.com\x1b\\https://github.com\x1b]8;;\x1b\\",
+		},
+		{
+			name: "hyperlink with text enabled",
+			args: args{
+				json:     strings.NewReader(`{"link":"https://github.com","text":"GitHub"}`),
+				template: `{{ hyperlink .link .text }}`,
+			},
+			wantW: "\x1b]8;;https://github.com\x1b\\GitHub\x1b]8;;\x1b\\",
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {