Migrate to containerd v1.7.0 and update dependencies

* Updates containerd to v1.7.0 and new binary for 32-bit
Arm OSes.
* Updates Go dependencies - openfaas and external

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

vendor/github.com/mattn/go-shellwords/.travis.yml

@@ -1,3 +1,6 @@
+arch:
+  - amd64
+  - ppc64le
 language: go
 sudo: false
 go:

vendor/github.com/mattn/go-shellwords/README.md

@@ -2,7 +2,8 @@
 
 [![codecov](https://codecov.io/gh/mattn/go-shellwords/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-shellwords)
 [![Build Status](https://travis-ci.org/mattn/go-shellwords.svg?branch=master)](https://travis-ci.org/mattn/go-shellwords)
-[![GoDoc](https://godoc.org/github.com/mattn/go-shellwords?status.svg)](http://godoc.org/github.com/mattn/go-shellwords)
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/mattn/go-shellwords)](https://pkg.go.dev/github.com/mattn/go-shellwords)
+[![ci](https://github.com/mattn/go-shellwords/ci/badge.svg)](https://github.com/mattn/go-shellwords/actions)
 
 Parse line as shell words.
 
@@ -13,6 +14,12 @@ args, err := shellwords.Parse("./foo --bar=baz")
 // args should be ["./foo", "--bar=baz"]
 ```
 
+```go
+envs, args, err := shellwords.ParseWithEnvs("FOO=foo BAR=baz ./foo --bar=baz")
+// envs should be ["FOO=foo", "BAR=baz"]
+// args should be ["./foo", "--bar=baz"]
+```
+
 ```go
 os.Setenv("FOO", "bar")
 p := shellwords.NewParser()

vendor/github.com/mattn/go-shellwords/shellwords.go

@@ -1,10 +1,11 @@
 package shellwords
 
 import (
+	"bytes"
 	"errors"
 	"os"
-	"regexp"
 	"strings"
+	"unicode"
 )
 
 var (
@@ -12,8 +13,6 @@ var (
 	ParseBacktick bool = false
 )
 
-var envRe = regexp.MustCompile(`\$({[a-zA-Z0-9_]+}|[a-zA-Z0-9_]+)`)
-
 func isSpace(r rune) bool {
 	switch r {
 	case ' ', '\t', '\r', '\n':
@@ -27,13 +26,72 @@ func replaceEnv(getenv func(string) string, s string) string {
 		getenv = os.Getenv
 	}
 
-	return envRe.ReplaceAllStringFunc(s, func(s string) string {
-		s = s[1:]
-		if s[0] == '{' {
-			s = s[1 : len(s)-1]
+	var buf bytes.Buffer
+	rs := []rune(s)
+	for i := 0; i < len(rs); i++ {
+		r := rs[i]
+		if r == '\\' {
+			i++
+			if i == len(rs) {
+				break
+			}
+			buf.WriteRune(rs[i])
+			continue
+		} else if r == '$' {
+			i++
+			if i == len(rs) {
+				buf.WriteRune(r)
+				break
+			}
+			if rs[i] == 0x7b {
+				i++
+				p := i
+				for ; i < len(rs); i++ {
+					r = rs[i]
+					if r == '\\' {
+						i++
+						if i == len(rs) {
+							return s
+						}
+						continue
+					}
+					if r == 0x7d || (!unicode.IsLetter(r) && r != '_' && !unicode.IsDigit(r)) {
+						break
+					}
+				}
+				if r != 0x7d {
+					return s
+				}
+				if i > p {
+					buf.WriteString(getenv(s[p:i]))
+				}
+			} else {
+				p := i
+				for ; i < len(rs); i++ {
+					r := rs[i]
+					if r == '\\' {
+						i++
+						if i == len(rs) {
+							return s
+						}
+						continue
+					}
+					if !unicode.IsLetter(r) && r != '_' && !unicode.IsDigit(r) {
+						break
+					}
+				}
+				if i > p {
+					buf.WriteString(getenv(s[p:i]))
+					i--
+				} else {
+					buf.WriteString(s[p:])
+				}
+			}
+		} else {
+			buf.WriteRune(r)
 		}
-		return getenv(s)
-	})
+	}
+	return buf.String()
 }
 
 type Parser struct {
@@ -56,6 +114,14 @@ func NewParser() *Parser {
 	}
 }
 
+type argType int
+
+const (
+	argNo argType = iota
+	argSingle
+	argQuoted
+)
+
 func (p *Parser) Parse(line string) ([]string, error) {
 	args := []string{}
 	buf := ""
@@ -63,13 +129,16 @@ func (p *Parser) Parse(line string) ([]string, error) {
 	backtick := ""
 
 	pos := -1
-	got := false
+	got := argNo
 
+	i := -1
 loop:
-	for i, r := range line {
+	for _, r := range line {
+		i++
 		if escaped {
 			buf += string(r)
 			escaped = false
+			got = argSingle
 			continue
 		}
 
@@ -86,21 +155,23 @@ loop:
 			if singleQuoted || doubleQuoted || backQuote || dollarQuote {
 				buf += string(r)
 				backtick += string(r)
-			} else if got {
+			} else if got != argNo {
 				if p.ParseEnv {
-					parser := &Parser{ParseEnv: false, ParseBacktick: false, Position: 0, Dir: p.Dir}
-					strs, err := parser.Parse(replaceEnv(p.Getenv, buf))
-					if err != nil {
-						return nil, err
-					}
-					for _, str := range strs {
-						args = append(args, str)
+					if got == argSingle {
+						parser := &Parser{ParseEnv: false, ParseBacktick: false, Position: 0, Dir: p.Dir}
+						strs, err := parser.Parse(replaceEnv(p.Getenv, buf))
+						if err != nil {
+							return nil, err
+						}
+						args = append(args, strs...)
+					} else {
+						args = append(args, replaceEnv(p.Getenv, buf))
 					}
 				} else {
 					args = append(args, buf)
 				}
 				buf = ""
-				got = false
+				got = argNo
 			}
 			continue
 		}
@@ -153,7 +224,7 @@ loop:
 		case '"':
 			if !singleQuoted && !dollarQuote {
 				if doubleQuoted {
-					got = true
+					got = argQuoted
 				}
 				doubleQuoted = !doubleQuoted
 				continue
@@ -161,7 +232,7 @@ loop:
 		case '\'':
 			if !doubleQuoted && !dollarQuote {
 				if singleQuoted {
-					got = true
+					got = argQuoted
 				}
 				singleQuoted = !singleQuoted
 				continue
@@ -171,7 +242,7 @@ loop:
 				if r == '>' && len(buf) > 0 {
 					if c := buf[0]; '0' <= c && c <= '9' {
 						i -= 1
-						got = false
+						got = argNo
 					}
 				}
 				pos = i
@@ -179,22 +250,24 @@ loop:
 			}
 		}
 
-		got = true
+		got = argSingle
 		buf += string(r)
 		if backQuote || dollarQuote {
 			backtick += string(r)
 		}
 	}
 
-	if got {
+	if got != argNo {
 		if p.ParseEnv {
-			parser := &Parser{ParseEnv: false, ParseBacktick: false, Position: 0, Dir: p.Dir}
-			strs, err := parser.Parse(replaceEnv(p.Getenv, buf))
-			if err != nil {
-				return nil, err
-			}
-			for _, str := range strs {
-				args = append(args, str)
+			if got == argSingle {
+				parser := &Parser{ParseEnv: false, ParseBacktick: false, Position: 0, Dir: p.Dir}
+				strs, err := parser.Parse(replaceEnv(p.Getenv, buf))
+				if err != nil {
+					return nil, err
+				}
+				args = append(args, strs...)
+			} else {
+				args = append(args, replaceEnv(p.Getenv, buf))
 			}
 		} else {
 			args = append(args, buf)
@@ -210,6 +283,35 @@ loop:
 	return args, nil
 }
 
+func (p *Parser) ParseWithEnvs(line string) (envs []string, args []string, err error) {
+	_args, err := p.Parse(line)
+	if err != nil {
+		return nil, nil, err
+	}
+	envs = []string{}
+	args = []string{}
+	parsingEnv := true
+	for _, arg := range _args {
+		if parsingEnv && isEnv(arg) {
+			envs = append(envs, arg)
+		} else {
+			if parsingEnv {
+				parsingEnv = false
+			}
+			args = append(args, arg)
+		}
+	}
+	return envs, args, nil
+}
+
+func isEnv(arg string) bool {
+	return len(strings.Split(arg, "=")) == 2
+}
+
 func Parse(line string) ([]string, error) {
 	return NewParser().Parse(line)
 }
+
+func ParseWithEnvs(line string) (envs []string, args []string, err error) {
+	return NewParser().ParseWithEnvs(line)
+}

vendor/github.com/mattn/go-shellwords/util_posix.go

@@ -3,7 +3,7 @@
 package shellwords
 
 import (
-	"errors"
+	"fmt"
 	"os"
 	"os/exec"
 	"strings"
@@ -23,7 +23,7 @@ func shellRun(line, dir string) (string, error) {
 		if eerr, ok := err.(*exec.ExitError); ok {
 			b = eerr.Stderr
 		}
-		return "", errors.New(err.Error() + ":" + string(b))
+		return "", fmt.Errorf("%s: %w", string(b), err)
 	}
 	return strings.TrimSpace(string(b)), nil
 }

vendor/github.com/mattn/go-shellwords/util_windows.go

@@ -3,7 +3,7 @@
 package shellwords
 
 import (
-	"errors"
+	"fmt"
 	"os"
 	"os/exec"
 	"strings"
@@ -23,7 +23,7 @@ func shellRun(line, dir string) (string, error) {
 		if eerr, ok := err.(*exec.ExitError); ok {
 			b = eerr.Stderr
 		}
-		return "", errors.New(err.Error() + ":" + string(b))
+		return "", fmt.Errorf("%s: %w", string(b), err)
 	}
 	return strings.TrimSpace(string(b)), nil
 }