Add vendor folder to git

vendor/github.com/coreos/pkg/flagutil/env.go

@@ -0,0 +1,33 @@
+package flagutil
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// SetFlagsFromEnv parses all registered flags in the given flagset,
+// and if they are not already set it attempts to set their values from
+// environment variables. Environment variables take the name of the flag but
+// are UPPERCASE, and any dashes are replaced by underscores. Environment
+// variables additionally are prefixed by the given string followed by
+// and underscore. For example, if prefix=PREFIX: some-flag => PREFIX_SOME_FLAG
+func SetFlagsFromEnv(fs *flag.FlagSet, prefix string) (err error) {
+	alreadySet := make(map[string]bool)
+	fs.Visit(func(f *flag.Flag) {
+		alreadySet[f.Name] = true
+	})
+	fs.VisitAll(func(f *flag.Flag) {
+		if !alreadySet[f.Name] {
+			key := prefix + "_" + strings.ToUpper(strings.Replace(f.Name, "-", "_", -1))
+			val := os.Getenv(key)
+			if val != "" {
+				if serr := fs.Set(f.Name, val); serr != nil {
+					err = fmt.Errorf("invalid value %q for %s: %v", val, key, serr)
+				}
+			}
+		}
+	})
+	return err
+}

vendor/github.com/coreos/pkg/flagutil/env_file.go

@@ -0,0 +1,77 @@
+package flagutil
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// SetFlagsFromEnvFile iterates the given flagset and if any flags are not
+// already set it attempts to set their values from the given env file. Env
+// files may have KEY=VALUE lines where the environment variable names are
+// in UPPERCASE, prefixed by the given PREFIX, and dashes are replaced by
+// underscores. For example, if prefix=PREFIX, some-flag is named
+// PREFIX_SOME_FLAG.
+// Comment lines are skipped, but more complex env file parsing is not
+// performed.
+func SetFlagsFromEnvFile(fs *flag.FlagSet, prefix string, path string) (err error) {
+	alreadySet := make(map[string]bool)
+	fs.Visit(func(f *flag.Flag) {
+		alreadySet[f.Name] = true
+	})
+	envs, err := parseEnvFile(path)
+	if err != nil {
+		return err
+	}
+	fs.VisitAll(func(f *flag.Flag) {
+		if !alreadySet[f.Name] {
+			key := prefix + "_" + strings.ToUpper(strings.Replace(f.Name, "-", "_", -1))
+			val := envs[key]
+			if val != "" {
+				if serr := fs.Set(f.Name, val); serr != nil {
+					err = fmt.Errorf("invalid value %q for %s: %v", val, key, serr)
+				}
+			}
+		}
+	})
+	return err
+}
+
+func parseEnvFile(path string) (map[string]string, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	envs := make(map[string]string)
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		token := scanner.Text()
+		if !skipLine(token) {
+			key, val, err := parseLine(token)
+			if err == nil {
+				envs[key] = val
+			}
+		}
+	}
+	return envs, nil
+}
+
+func skipLine(line string) bool {
+	return len(line) == 0 || strings.HasPrefix(line, "#")
+}
+
+func parseLine(line string) (key string, val string, err error) {
+	trimmed := strings.TrimSpace(line)
+	pair := strings.SplitN(trimmed, "=", 2)
+	if len(pair) != 2 {
+		err = fmt.Errorf("invalid KEY=value line: %q", line)
+		return
+	}
+	key = strings.TrimSpace(pair[0])
+	val = strings.TrimSpace(pair[1])
+	return
+}

vendor/github.com/coreos/pkg/flagutil/env_test.go

@@ -0,0 +1,64 @@
+package flagutil
+
+import (
+	"flag"
+	"os"
+	"testing"
+)
+
+func TestSetFlagsFromEnv(t *testing.T) {
+	fs := flag.NewFlagSet("testing", flag.ExitOnError)
+	fs.String("a", "", "")
+	fs.String("b", "", "")
+	fs.String("c", "", "")
+	fs.Parse([]string{})
+
+	os.Clearenv()
+	// flags should be settable using env vars
+	os.Setenv("MYPROJ_A", "foo")
+	// and command-line flags
+	if err := fs.Set("b", "bar"); err != nil {
+		t.Fatal(err)
+	}
+	// command-line flags take precedence over env vars
+	os.Setenv("MYPROJ_C", "woof")
+	if err := fs.Set("c", "quack"); err != nil {
+		t.Fatal(err)
+	}
+
+	// first verify that flags are as expected before reading the env
+	for f, want := range map[string]string{
+		"a": "",
+		"b": "bar",
+		"c": "quack",
+	} {
+		if got := fs.Lookup(f).Value.String(); got != want {
+			t.Fatalf("flag %q=%q, want %q", f, got, want)
+		}
+	}
+
+	// now read the env and verify flags were updated as expected
+	err := SetFlagsFromEnv(fs, "MYPROJ")
+	if err != nil {
+		t.Errorf("err=%v, want nil", err)
+	}
+	for f, want := range map[string]string{
+		"a": "foo",
+		"b": "bar",
+		"c": "quack",
+	} {
+		if got := fs.Lookup(f).Value.String(); got != want {
+			t.Errorf("flag %q=%q, want %q", f, got, want)
+		}
+	}
+}
+
+func TestSetFlagsFromEnvBad(t *testing.T) {
+	// now verify that an error is propagated
+	fs := flag.NewFlagSet("testing", flag.ExitOnError)
+	fs.Int("x", 0, "")
+	os.Setenv("MYPROJ_X", "not_a_number")
+	if err := SetFlagsFromEnv(fs, "MYPROJ"); err == nil {
+		t.Errorf("err=nil, want != nil")
+	}
+}

vendor/github.com/coreos/pkg/flagutil/file_env_test.go

@@ -0,0 +1,107 @@
+package flagutil
+
+import (
+	"flag"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+var envFile = `
+# some secret env vars
+MYPROJ_A=foo		
+MYPROJ_C=woof
+`
+
+func TestSetFlagsFromEnvFile(t *testing.T) {
+	fs := flag.NewFlagSet("testing", flag.ExitOnError)
+	fs.String("a", "", "")
+	fs.String("b", "", "")
+	fs.String("c", "", "")
+	fs.Parse([]string{})
+
+	// add command-line flags
+	if err := fs.Set("b", "bar"); err != nil {
+		t.Fatal(err)
+	}
+	if err := fs.Set("c", "quack"); err != nil {
+		t.Fatal(err)
+	}
+
+	// first verify that flags are as expected before reading the env
+	for f, want := range map[string]string{
+		"a": "",
+		"b": "bar",
+		"c": "quack",
+	} {
+		if got := fs.Lookup(f).Value.String(); got != want {
+			t.Fatalf("flag %q=%q, want %q", f, got, want)
+		}
+	}
+
+	file, err := ioutil.TempFile("", "env-file")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(file.Name())
+	file.Write([]byte(envFile))
+
+	// read env file and verify flags were updated as expected
+	err = SetFlagsFromEnvFile(fs, "MYPROJ", file.Name())
+	if err != nil {
+		t.Errorf("err=%v, want nil", err)
+	}
+	for f, want := range map[string]string{
+		"a": "foo",
+		"b": "bar",
+		"c": "quack",
+	} {
+		if got := fs.Lookup(f).Value.String(); got != want {
+			t.Errorf("flag %q=%q, want %q", f, got, want)
+		}
+	}
+}
+
+func TestSetFlagsFromEnvFile_FlagSetError(t *testing.T) {
+	// now verify that an error is propagated
+	fs := flag.NewFlagSet("testing", flag.ExitOnError)
+	fs.Int("x", 0, "")
+	file, err := ioutil.TempFile("", "env-file")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(file.Name())
+	file.Write([]byte("MYPROJ_X=not_a_number"))
+	if err := SetFlagsFromEnvFile(fs, "MYPROJ", file.Name()); err == nil {
+		t.Errorf("err=nil, want != nil")
+	}
+}
+
+func TestParseLine(t *testing.T) {
+	cases := []struct {
+		line        string
+		expectedKey string
+		expectedVal string
+		nilErr      bool
+	}{
+		{"key=value", "key", "value", true},
+		{" key  =  value  	", "key", "value", true},
+		{"key='#gopher' #blah", "key", "'#gopher' #blah", true},
+		// invalid
+		{"key:value", "", "", false},
+		{"keyvalue", "", "", false},
+	}
+	for _, c := range cases {
+		key, val, err := parseLine(c.line)
+		if (err == nil) != c.nilErr {
+			if c.nilErr {
+				t.Errorf("got %s, want err=nil", err)
+			} else {
+				t.Errorf("got err=nil, want err!=nil")
+			}
+		}
+		if c.expectedKey != key || c.expectedVal != val {
+			t.Errorf("got %q=%q, want %q=%q", key, val, c.expectedKey, c.expectedVal)
+		}
+	}
+}

vendor/github.com/coreos/pkg/flagutil/types.go

@@ -0,0 +1,44 @@
+package flagutil
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"strings"
+)
+
+// IPv4Flag parses a string into a net.IP after asserting that it
+// is an IPv4 address. This type implements the flag.Value interface.
+type IPv4Flag struct {
+	val net.IP
+}
+
+func (f *IPv4Flag) IP() net.IP {
+	return f.val
+}
+
+func (f *IPv4Flag) Set(v string) error {
+	ip := net.ParseIP(v)
+	if ip == nil || ip.To4() == nil {
+		return errors.New("not an IPv4 address")
+	}
+	f.val = ip
+	return nil
+}
+
+func (f *IPv4Flag) String() string {
+	return f.val.String()
+}
+
+// StringSliceFlag parses a comma-delimited list of strings into
+// a []string. This type implements the flag.Value interface.
+type StringSliceFlag []string
+
+func (ss *StringSliceFlag) String() string {
+	return fmt.Sprintf("%+v", *ss)
+}
+
+func (ss *StringSliceFlag) Set(v string) error {
+	*ss = strings.Split(v, ",")
+	return nil
+}

vendor/github.com/coreos/pkg/flagutil/types_test.go

@@ -0,0 +1,57 @@
+package flagutil
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestIPv4FlagSetInvalidArgument(t *testing.T) {
+	tests := []string{
+		"",
+		"foo",
+		"::",
+		"127.0.0.1:4328",
+	}
+
+	for i, tt := range tests {
+		var f IPv4Flag
+		if err := f.Set(tt); err == nil {
+			t.Errorf("case %d: expected non-nil error", i)
+		}
+	}
+}
+
+func TestIPv4FlagSetValidArgument(t *testing.T) {
+	tests := []string{
+		"127.0.0.1",
+		"0.0.0.0",
+	}
+
+	for i, tt := range tests {
+		var f IPv4Flag
+		if err := f.Set(tt); err != nil {
+			t.Errorf("case %d: err=%v", i, err)
+		}
+	}
+}
+
+func TestStringSliceFlag(t *testing.T) {
+	tests := []struct {
+		input string
+		want  []string
+	}{
+		{input: "", want: []string{""}},
+		{input: "foo", want: []string{"foo"}},
+		{input: "foo,bar", want: []string{"foo", "bar"}},
+	}
+
+	for i, tt := range tests {
+		var f StringSliceFlag
+		if err := f.Set(tt.input); err != nil {
+			t.Errorf("case %d: err=%v", i, err)
+		}
+		if !reflect.DeepEqual(tt.want, []string(f)) {
+			t.Errorf("case %d: want=%v got=%v", i, tt.want, f)
+		}
+	}
+}