Inline shellescape dependency

go.mod

@@ -3,7 +3,6 @@ module github.com/zalando/go-keyring
 go 1.18
 
 require (
-	al.essio.dev/pkg/shellescape v1.5.1
 	github.com/danieljoos/wincred v1.2.2
 	github.com/godbus/dbus/v5 v5.1.0
 )

go.sum

@@ -1,11 +1,8 @@
-al.essio.dev/pkg/shellescape v1.5.1 h1:86HrALUujYS/h+GtqoB26SBEdkWfmMI6FubjXlsXyho=
-al.essio.dev/pkg/shellescape v1.5.1/go.mod h1:6sIqp7X2P6mThCQ7twERpZTuigpr6KbZWtls1U8I890=
 github.com/danieljoos/wincred v1.2.2 h1:774zMFJrqaeYCK2W57BgAem/MLi6mtSE47MB6BOJ0i0=
 github.com/danieljoos/wincred v1.2.2/go.mod h1:w7w4Utbrz8lqeMbDAK0lkNJUv5sAOkFi7nd/ogr0Uh8=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 h1:El6M4kTTCOh6aBiKaUGG7oYTSPP8MxqL4YI3kZKwcP4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=

internal/shellescape/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Alessio Treglia
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

internal/shellescape/shellescape.go

@@ -0,0 +1,39 @@
+/*
+Package shellescape provides the shellescape.Quote to escape arbitrary
+strings for a safe use as command line arguments in the most common
+POSIX shells.
+
+The original Python package which this work was inspired by can be found
+at https://pypi.python.org/pypi/shellescape.
+
+Portions of this file are from al.essio.dev/pkg/shellescape, © 2016 Alessio Treglia under the MIT License.
+See LICENSE for more information.
+*/
+package shellescape
+
+/*
+The functionality provided by shellescape.Quote could be helpful
+in those cases where it is known that the output of a Go program will
+be appended to/used in the context of shell programs' command line arguments.
+*/
+
+import (
+	"regexp"
+	"strings"
+)
+
+var pattern *regexp.Regexp = regexp.MustCompile(`[^\w@%+=:,./-]`)
+
+// Quote returns a shell-escaped version of the string s. The returned value
+// is a string that can safely be used as one token in a shell command line.
+func Quote(s string) string {
+	if len(s) == 0 {
+		return "''"
+	}
+
+	if pattern.MatchString(s) {
+		return "'" + strings.ReplaceAll(s, "'", "'\"'\"'") + "'"
+	}
+
+	return s
+}

internal/shellescape/shellescape_test.go

@@ -0,0 +1,69 @@
+package shellescape_test
+
+import (
+	"testing"
+
+	"github.com/zalando/go-keyring/internal/shellescape"
+)
+
+func assertEqual(t *testing.T, s, expected string) {
+	if s != expected {
+		t.Fatalf("%q (expected: %q)", s, expected)
+	}
+}
+
+func TestEmptyString(t *testing.T) {
+	s := shellescape.Quote("")
+	expected := "''"
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestDoubleQuotedString(t *testing.T) {
+	s := shellescape.Quote(`"double quoted"`)
+	expected := `'"double quoted"'`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestSingleQuotedString(t *testing.T) {
+	s := shellescape.Quote(`'single quoted'`)
+	expected := `''"'"'single quoted'"'"''`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestUnquotedString(t *testing.T) {
+	s := shellescape.Quote(`no quotes`)
+	expected := `'no quotes'`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestSingleInvalid(t *testing.T) {
+	s := shellescape.Quote(`;`)
+	expected := `';'`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestAllInvalid(t *testing.T) {
+	s := shellescape.Quote(`;${}`)
+	expected := `';${}'`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}
+
+func TestCleanString(t *testing.T) {
+	s := shellescape.Quote("foo.example.com")
+	expected := `foo.example.com`
+	if s != expected {
+		t.Errorf("Expected escaped string %s, got: %s", expected, s)
+	}
+}

keyring_darwin.go

@@ -22,7 +22,7 @@ import (
 	"os/exec"
 	"strings"
 
-	"al.essio.dev/pkg/shellescape"
+	"github.com/zalando/go-keyring/internal/shellescape"
 )
 
 const (