Update dependencies

Gopkg.lock

@@ -3,129 +3,185 @@
 
 [[projects]]
   branch = "master"
+  digest = "1:147fe67eb5dcb4f1a182992bf2a9b00ca4de3f4b8193bda0c89a9fdbb9db6ad6"
   name = "github.com/Masterminds/semver"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "3c560837130448941620d7694991d3ec440aefc0"
 
 [[projects]]
+  branch = "master"
+  digest = "1:43f9a530dfe36fb355b05fbc7a5712f8149a7f6bdfd131bc0ccc634e25c4dd1e"
   name = "github.com/Masterminds/sprig"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "6b2a58267f6a8b1dc8e2eb5519b984008fa85e8c"
-  version = "v2.15.0"
 
 [[projects]]
+  digest = "1:975108e8d4f5dab096fc991326e96a5716ee8d02e5e7386bb4796171afc4ab9a"
   name = "github.com/aokoli/goutils"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "3391d3790d23d03408670993e957e8f408993c34"
   version = "v1.0.1"
 
 [[projects]]
+  digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
+  pruneopts = "NUT"
   revision = "346938d642f2ec3594ed81d874461961cd0faa76"
   version = "v1.1.0"
 
 [[projects]]
+  digest = "1:1bb197a3b5db4e06e00b7560f8e89836c486627f2a0338332ed37daa003d259e"
   name = "github.com/google/uuid"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "064e2069ce9c359c118179501254f67d7d37ba24"
   version = "0.2"
 
 [[projects]]
+  digest = "1:f5db19d350bd0b542d17f7e7cf4e7068bac416c08adb6a129b3c6d1db8211051"
   name = "github.com/huandu/xstrings"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "2bf18b218c51864a87384c06996e40ff9dcff8e1"
   version = "v1.0.0"
 
 [[projects]]
+  branch = "master"
+  digest = "1:65300ccc4bcb38b107b868155c303312978981e56bca707c81efec57575b5e06"
   name = "github.com/imdario/mergo"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "9316a62528ac99aaecb4e47eadd6dc8aa6533d58"
-  version = "v0.3.5"
 
 [[projects]]
   branch = "master"
+  digest = "1:fdf499904ff0a8b5e05a32d98a1e65ddaff6b358640dbd8696ce8bb4e8d2d246"
   name = "github.com/mattn/go-zglob"
   packages = [
     ".",
-    "fastwalk"
+    "fastwalk",
   ]
-  revision = "49693fbb3fe3c3a75fc4e4d6fb1d7cedcbdeb385"
+  pruneopts = "NUT"
+  revision = "c436403c742d0b6d8fc37e69eadf33e024fe74fa"
 
 [[projects]]
+  branch = "master"
+  digest = "1:9db29b604bd78452d167abed82386ddd2f93973df3841896fb6ab8aff936f1d6"
+  name = "github.com/mitchellh/go-homedir"
+  packages = ["."]
+  pruneopts = "NUT"
+  revision = "3864e76763d94a6df2f9960b16a20a33da9f9a66"
+
+[[projects]]
+  digest = "1:0028cb19b2e4c3112225cd871870f2d9cf49b9b4276531f03438a88e94be86fe"
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
+  pruneopts = "NUT"
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:5089085e1b27a57be4fb7acf32bfa71fb6236dc0e8371165651c9e15285a9ce0"
   name = "github.com/radovskyb/watcher"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "0d9d32686dbf6395752c9b209398a59e302a7f1e"
 
 [[projects]]
   branch = "master"
+  digest = "1:8c05fbdaac9713aed2a89d171a8b4e98a563f6c84e48352d0bcb10b1a5122488"
   name = "github.com/spf13/pflag"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "3ebe029320b2676d667ae88da602a5f854788a8a"
 
 [[projects]]
+  digest = "1:bacb8b590716ab7c33f2277240972c9582d389593ee8d66fc10074e0508b8126"
   name = "github.com/stretchr/testify"
   packages = ["assert"]
+  pruneopts = "NUT"
   revision = "f35b8ab0b5a2cef36673838d662e249dd9c94686"
   version = "v1.2.2"
 
 [[projects]]
   branch = "master"
+  digest = "1:17ff32de9f3bf39f76d339ddffcd380140721b112bea96837a86d4dc26c2c633"
   name = "golang.org/x/crypto"
   packages = [
     "pbkdf2",
     "scrypt",
-    "ssh/terminal"
+    "ssh/terminal",
   ]
+  pruneopts = "NUT"
   revision = "a49355c7e3f8fe157a85be2f77e6e269a0f89602"
 
 [[projects]]
   branch = "master"
+  digest = "1:76ee51c3f468493aff39dbacc401e8831fbb765104cbf613b89bef01cf4bad70"
   name = "golang.org/x/net"
   packages = ["context"]
-  revision = "afe8f62b1d6bbd81f31868121a50b06d8188e1f9"
+  pruneopts = "NUT"
+  revision = "d0887baf81f4598189d4e12a37c6da86f0bba4d0"
 
 [[projects]]
   branch = "master"
+  digest = "1:39ebcc2b11457b703ae9ee2e8cca0f68df21969c6102cb3b705f76cca0ea0239"
   name = "golang.org/x/sync"
   packages = ["errgroup"]
+  pruneopts = "NUT"
   revision = "1d60e4601c6fd243af51cc01ddf169918a5407ca"
 
 [[projects]]
   branch = "master"
+  digest = "1:64107e3c8f52f341891a565d117bf263ed396fe0c16bad19634b25be25debfaa"
   name = "golang.org/x/sys"
   packages = [
     "unix",
-    "windows"
+    "windows",
   ]
-  revision = "63fc586f45fe72d95d5240a5d5eb95e6503907d3"
+  pruneopts = "NUT"
+  revision = "ac767d655b305d4e9612f5f6e33120b9176c4ad4"
 
 [[projects]]
+  branch = "v2"
+  digest = "1:7c95b35057a0ff2e19f707173cc1a947fa43a6eb5c4d300d196ece0334046082"
   name = "gopkg.in/yaml.v2"
   packages = ["."]
+  pruneopts = "NUT"
   revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
-  version = "v2.2.1"
 
 [[projects]]
   branch = "master"
+  digest = "1:36dbf10f4bf8c7568b5d4a5fe1afb57cd8e0451a6566b28f5bc87fc01f65339d"
   name = "mvdan.cc/sh"
   packages = [
     "interp",
-    "shell",
-    "syntax"
+    "syntax",
   ]
-  revision = "ca7561fd34910fd8575a3830d3cded291c0ce8b2"
+  pruneopts = "NUT"
+  revision = "76fa0d67a25bb78ecf63fa717191661589dcdadd"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "600bd482208fdedec60141bfaffe55eb403df077944bfdf5c007a33132c8ab5a"
+  input-imports = [
+    "github.com/Masterminds/semver",
+    "github.com/Masterminds/sprig",
+    "github.com/imdario/mergo",
+    "github.com/mattn/go-zglob",
+    "github.com/mitchellh/go-homedir",
+    "github.com/radovskyb/watcher",
+    "github.com/spf13/pflag",
+    "github.com/stretchr/testify/assert",
+    "golang.org/x/sync/errgroup",
+    "gopkg.in/yaml.v2",
+    "mvdan.cc/sh/interp",
+    "mvdan.cc/sh/syntax",
+  ]
   solver-name = "gps-cdcl"
   solver-version = 1

vendor/github.com/mattn/go-zglob/fastwalk/fastwalk.go

@@ -19,6 +19,7 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
+	"sync"
 )
 
 // TraverseLink is a sentinel error for fastWalk, similar to filepath.SkipDir.
@@ -67,11 +68,18 @@ func FastWalk(root string, walkFn func(path string, typ os.FileMode) error) erro
 		// buffered for correctness & not leaking goroutines:
 		resc: make(chan error, numWorkers),
 	}
-	defer close(w.donec)
+
 	// TODO(bradfitz): start the workers as needed? maybe not worth it.
+	var wg sync.WaitGroup
 	for i := 0; i < numWorkers; i++ {
-		go w.doWork()
+		wg.Add(1)
+		go w.doWork(&wg)
 	}
+
+	// Ensure we wait for goroutines we started to finish before we return.
+	defer wg.Wait()
+	defer close(w.donec)
+
 	todo := []walkItem{{dir: root}}
 	out := 0
 	for {
@@ -113,10 +121,11 @@ func FastWalk(root string, walkFn func(path string, typ os.FileMode) error) erro
 
 // doWork reads directories as instructed (via workc) and runs the
 // user's callback function.
-func (w *walker) doWork() {
+func (w *walker) doWork(wg *sync.WaitGroup) {
 	for {
 		select {
 		case <-w.donec:
+			wg.Done()
 			return
 		case it := <-w.workc:
 			w.resc <- w.walk(it.dir, !it.callbackDone)

vendor/github.com/mitchellh/go-homedir/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Mitchell Hashimoto
+
+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.

vendor/github.com/mitchellh/go-homedir/homedir.go

@@ -0,0 +1,155 @@
+package homedir
+
+import (
+	"bytes"
+	"errors"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+// DisableCache will disable caching of the home directory. Caching is enabled
+// by default.
+var DisableCache bool
+
+var homedirCache string
+var cacheLock sync.RWMutex
+
+// Dir returns the home directory for the executing user.
+//
+// This uses an OS-specific method for discovering the home directory.
+// An error is returned if a home directory cannot be detected.
+func Dir() (string, error) {
+	if !DisableCache {
+		cacheLock.RLock()
+		cached := homedirCache
+		cacheLock.RUnlock()
+		if cached != "" {
+			return cached, nil
+		}
+	}
+
+	cacheLock.Lock()
+	defer cacheLock.Unlock()
+
+	var result string
+	var err error
+	if runtime.GOOS == "windows" {
+		result, err = dirWindows()
+	} else {
+		// Unix-like system, so just assume Unix
+		result, err = dirUnix()
+	}
+
+	if err != nil {
+		return "", err
+	}
+	homedirCache = result
+	return result, nil
+}
+
+// Expand expands the path to include the home directory if the path
+// is prefixed with `~`. If it isn't prefixed with `~`, the path is
+// returned as-is.
+func Expand(path string) (string, error) {
+	if len(path) == 0 {
+		return path, nil
+	}
+
+	if path[0] != '~' {
+		return path, nil
+	}
+
+	if len(path) > 1 && path[1] != '/' && path[1] != '\\' {
+		return "", errors.New("cannot expand user-specific home dir")
+	}
+
+	dir, err := Dir()
+	if err != nil {
+		return "", err
+	}
+
+	return filepath.Join(dir, path[1:]), nil
+}
+
+func dirUnix() (string, error) {
+	homeEnv := "HOME"
+	if runtime.GOOS == "plan9" {
+		// On plan9, env vars are lowercase.
+		homeEnv = "home"
+	}
+
+	// First prefer the HOME environmental variable
+	if home := os.Getenv(homeEnv); home != "" {
+		return home, nil
+	}
+
+	var stdout bytes.Buffer
+
+	// If that fails, try OS specific commands
+	if runtime.GOOS == "darwin" {
+		cmd := exec.Command("sh", "-c", `dscl -q . -read /Users/"$(whoami)" NFSHomeDirectory | sed 's/^[^ ]*: //'`)
+		cmd.Stdout = &stdout
+		if err := cmd.Run(); err == nil {
+			result := strings.TrimSpace(stdout.String())
+			if result != "" {
+				return result, nil
+			}
+		}
+	} else {
+		cmd := exec.Command("getent", "passwd", strconv.Itoa(os.Getuid()))
+		cmd.Stdout = &stdout
+		if err := cmd.Run(); err != nil {
+			// If the error is ErrNotFound, we ignore it. Otherwise, return it.
+			if err != exec.ErrNotFound {
+				return "", err
+			}
+		} else {
+			if passwd := strings.TrimSpace(stdout.String()); passwd != "" {
+				// username:password:uid:gid:gecos:home:shell
+				passwdParts := strings.SplitN(passwd, ":", 7)
+				if len(passwdParts) > 5 {
+					return passwdParts[5], nil
+				}
+			}
+		}
+	}
+
+	// If all else fails, try the shell
+	stdout.Reset()
+	cmd := exec.Command("sh", "-c", "cd && pwd")
+	cmd.Stdout = &stdout
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+
+	result := strings.TrimSpace(stdout.String())
+	if result == "" {
+		return "", errors.New("blank output when reading home directory")
+	}
+
+	return result, nil
+}
+
+func dirWindows() (string, error) {
+	// First prefer the HOME environmental variable
+	if home := os.Getenv("HOME"); home != "" {
+		return home, nil
+	}
+
+	drive := os.Getenv("HOMEDRIVE")
+	path := os.Getenv("HOMEPATH")
+	home := drive + path
+	if drive == "" || path == "" {
+		home = os.Getenv("USERPROFILE")
+	}
+	if home == "" {
+		return "", errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank")
+	}
+
+	return home, nil
+}

vendor/golang.org/x/sys/unix/fcntl.go

@@ -14,7 +14,11 @@ var fcntl64Syscall uintptr = SYS_FCNTL
 
 // FcntlInt performs a fcntl syscall on fd with the provided command and argument.
 func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
-	valptr, _, err := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
+	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
+	var err error
+	if errno != 0 {
+		err = errno
+	}
 	return int(valptr), err
 }
 

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -206,7 +206,7 @@ func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	return unsafe.Pointer(&sa.raw), SizeofSockaddrDatalink, nil
 }
 
-func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_LINK:
 		pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
@@ -286,7 +286,7 @@ func Accept(fd int) (nfd int, sa Sockaddr, err error) {
 		Close(nfd)
 		return 0, nil, ECONNABORTED
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0
@@ -306,7 +306,7 @@ func Getsockname(fd int) (sa Sockaddr, err error) {
 		rsa.Addr.Family = AF_UNIX
 		rsa.Addr.Len = SizeofSockaddrUnix
 	}
-	return anyToSockaddr(&rsa)
+	return anyToSockaddr(fd, &rsa)
 }
 
 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
@@ -356,7 +356,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
 	recvflags = int(msg.Flags)
 	// source address is only specified if the socket is unconnected
 	if rsa.Addr.Family != AF_UNSPEC {
-		from, err = anyToSockaddr(&rsa)
+		from, err = anyToSockaddr(fd, &rsa)
 	}
 	return
 }

vendor/golang.org/x/sys/unix/syscall_dragonfly.go

@@ -87,7 +87,7 @@ func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
 	if len > SizeofSockaddrAny {
 		panic("RawSockaddrAny too small")
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0

vendor/golang.org/x/sys/unix/syscall_freebsd.go

@@ -89,7 +89,7 @@ func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
 	if len > SizeofSockaddrAny {
 		panic("RawSockaddrAny too small")
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -489,6 +489,47 @@ func (sa *SockaddrL2) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	return unsafe.Pointer(&sa.raw), SizeofSockaddrL2, nil
 }
 
+// SockaddrRFCOMM implements the Sockaddr interface for AF_BLUETOOTH type sockets
+// using the RFCOMM protocol.
+//
+// Server example:
+//
+//      fd, _ := Socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)
+//      _ = unix.Bind(fd, &unix.SockaddrRFCOMM{
+//      	Channel: 1,
+//      	Addr:    [6]uint8{0, 0, 0, 0, 0, 0}, // BDADDR_ANY or 00:00:00:00:00:00
+//      })
+//      _ = Listen(fd, 1)
+//      nfd, sa, _ := Accept(fd)
+//      fmt.Printf("conn addr=%v fd=%d", sa.(*unix.SockaddrRFCOMM).Addr, nfd)
+//      Read(nfd, buf)
+//
+// Client example:
+//
+//      fd, _ := Socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM)
+//      _ = Connect(fd, &SockaddrRFCOMM{
+//      	Channel: 1,
+//      	Addr:    [6]byte{0x11, 0x22, 0x33, 0xaa, 0xbb, 0xcc}, // CC:BB:AA:33:22:11
+//      })
+//      Write(fd, []byte(`hello`))
+type SockaddrRFCOMM struct {
+	// Addr represents a bluetooth address, byte ordering is little-endian.
+	Addr [6]uint8
+
+	// Channel is a designated bluetooth channel, only 1-30 are available for use.
+	// Since Linux 2.6.7 and further zero value is the first available channel.
+	Channel uint8
+
+	raw RawSockaddrRFCOMM
+}
+
+func (sa *SockaddrRFCOMM) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	sa.raw.Family = AF_BLUETOOTH
+	sa.raw.Channel = sa.Channel
+	sa.raw.Bdaddr = sa.Addr
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrRFCOMM, nil
+}
+
 // SockaddrCAN implements the Sockaddr interface for AF_CAN type sockets.
 // The RxID and TxID fields are used for transport protocol addressing in
 // (CAN_TP16, CAN_TP20, CAN_MCNET, and CAN_ISOTP), they can be left with
@@ -651,7 +692,7 @@ func (sa *SockaddrVM) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	return unsafe.Pointer(&sa.raw), SizeofSockaddrVM, nil
 }
 
-func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_NETLINK:
 		pp := (*RawSockaddrNetlink)(unsafe.Pointer(rsa))
@@ -728,6 +769,30 @@ func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
 			Port: pp.Port,
 		}
 		return sa, nil
+	case AF_BLUETOOTH:
+		proto, err := GetsockoptInt(fd, SOL_SOCKET, SO_PROTOCOL)
+		if err != nil {
+			return nil, err
+		}
+		// only BTPROTO_L2CAP and BTPROTO_RFCOMM can accept connections
+		switch proto {
+		case BTPROTO_L2CAP:
+			pp := (*RawSockaddrL2)(unsafe.Pointer(rsa))
+			sa := &SockaddrL2{
+				PSM:      pp.Psm,
+				CID:      pp.Cid,
+				Addr:     pp.Bdaddr,
+				AddrType: pp.Bdaddr_type,
+			}
+			return sa, nil
+		case BTPROTO_RFCOMM:
+			pp := (*RawSockaddrRFCOMM)(unsafe.Pointer(rsa))
+			sa := &SockaddrRFCOMM{
+				Channel: pp.Channel,
+				Addr:    pp.Bdaddr,
+			}
+			return sa, nil
+		}
 	}
 	return nil, EAFNOSUPPORT
 }
@@ -739,7 +804,7 @@ func Accept(fd int) (nfd int, sa Sockaddr, err error) {
 	if err != nil {
 		return
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0
@@ -757,7 +822,7 @@ func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) {
 	if len > SizeofSockaddrAny {
 		panic("RawSockaddrAny too small")
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0
@@ -771,7 +836,7 @@ func Getsockname(fd int) (sa Sockaddr, err error) {
 	if err = getsockname(fd, &rsa, &len); err != nil {
 		return
 	}
-	return anyToSockaddr(&rsa)
+	return anyToSockaddr(fd, &rsa)
 }
 
 func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) {
@@ -960,7 +1025,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
 	recvflags = int(msg.Flags)
 	// source address is only specified if the socket is unconnected
 	if rsa.Addr.Family != AF_UNSPEC {
-		from, err = anyToSockaddr(&rsa)
+		from, err = anyToSockaddr(fd, &rsa)
 	}
 	return
 }

vendor/golang.org/x/sys/unix/syscall_solaris.go

@@ -112,7 +112,7 @@ func Getsockname(fd int) (sa Sockaddr, err error) {
 	if err = getsockname(fd, &rsa, &len); err != nil {
 		return
 	}
-	return anyToSockaddr(&rsa)
+	return anyToSockaddr(fd, &rsa)
 }
 
 // GetsockoptString returns the string value of the socket option opt for the
@@ -314,7 +314,11 @@ func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
 
 // FcntlInt performs a fcntl syscall on fd with the provided command and argument.
 func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
-	valptr, _, err := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
+	valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
+	var err error
+	if errno != 0 {
+		err = errno
+	}
 	return int(valptr), err
 }
 
@@ -356,7 +360,7 @@ func Futimes(fd int, tv []Timeval) error {
 	return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
 }
 
-func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_UNIX:
 		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
@@ -407,7 +411,7 @@ func Accept(fd int) (nfd int, sa Sockaddr, err error) {
 	if nfd == -1 {
 		return
 	}
-	sa, err = anyToSockaddr(&rsa)
+	sa, err = anyToSockaddr(fd, &rsa)
 	if err != nil {
 		Close(nfd)
 		nfd = 0
@@ -444,7 +448,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
 	oobn = int(msg.Accrightslen)
 	// source address is only specified if the socket is unconnected
 	if rsa.Addr.Family != AF_UNSPEC {
-		from, err = anyToSockaddr(&rsa)
+		from, err = anyToSockaddr(fd, &rsa)
 	}
 	return
 }

vendor/golang.org/x/sys/unix/syscall_unix.go

@@ -219,7 +219,7 @@ func Getpeername(fd int) (sa Sockaddr, err error) {
 	if err = getpeername(fd, &rsa, &len); err != nil {
 		return
 	}
-	return anyToSockaddr(&rsa)
+	return anyToSockaddr(fd, &rsa)
 }
 
 func GetsockoptByte(fd, level, opt int) (value byte, err error) {
@@ -291,7 +291,7 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
 		return
 	}
 	if rsa.Addr.Family != AF_UNSPEC {
-		from, err = anyToSockaddr(&rsa)
+		from, err = anyToSockaddr(fd, &rsa)
 	}
 	return
 }

vendor/golang.org/x/sys/unix/zsyscall_linux_ppc64.go

@@ -1474,6 +1474,21 @@ func Munlockall() (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func faccessat(dirfd int, path string, mode uint32) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	_, _, e1 := Syscall(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Dup2(oldfd int, newfd int) (err error) {
 	_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
 	if e1 != 0 {
@@ -1495,21 +1510,6 @@ func EpollCreate(size int) (fd int, err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func faccessat(dirfd int, path string, mode uint32) (err error) {
-	var _p0 *byte
-	_p0, err = BytePtrFromString(path)
-	if err != nil {
-		return
-	}
-	_, _, e1 := Syscall(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode))
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
 func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
 	var _p0 unsafe.Pointer
 	if len(events) > 0 {

vendor/golang.org/x/sys/unix/zsyscall_linux_ppc64le.go

@@ -1474,6 +1474,21 @@ func Munlockall() (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func faccessat(dirfd int, path string, mode uint32) (err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	_, _, e1 := Syscall(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Dup2(oldfd int, newfd int) (err error) {
 	_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
 	if e1 != 0 {
@@ -1495,21 +1510,6 @@ func EpollCreate(size int) (fd int, err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func faccessat(dirfd int, path string, mode uint32) (err error) {
-	var _p0 *byte
-	_p0, err = BytePtrFromString(path)
-	if err != nil {
-		return
-	}
-	_, _, e1 := Syscall(SYS_FACCESSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode))
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
 func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
 	var _p0 unsafe.Pointer
 	if len(events) > 0 {

vendor/golang.org/x/sys/unix/ztypes_linux_386.go

@@ -248,6 +248,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -401,6 +408,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_amd64.go

@@ -250,6 +250,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -405,6 +412,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_arm.go

@@ -251,6 +251,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -404,6 +411,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_arm64.go

@@ -251,6 +251,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -406,6 +413,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_mips.go

@@ -249,6 +249,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -402,6 +409,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_mips64.go

@@ -251,6 +251,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -406,6 +413,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_mips64le.go

@@ -251,6 +251,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -406,6 +413,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_mipsle.go

@@ -249,6 +249,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -402,6 +409,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_ppc64.go

@@ -252,6 +252,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -407,6 +414,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_ppc64le.go

@@ -252,6 +252,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -407,6 +414,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/unix/ztypes_linux_s390x.go

@@ -250,6 +250,13 @@ type RawSockaddrL2 struct {
 	_           [1]byte
 }
 
+type RawSockaddrRFCOMM struct {
+	Family  uint16
+	Bdaddr  [6]uint8
+	Channel uint8
+	_       [1]byte
+}
+
 type RawSockaddrCAN struct {
 	Family  uint16
 	_       [2]byte
@@ -405,6 +412,7 @@ const (
 	SizeofSockaddrNetlink   = 0xc
 	SizeofSockaddrHCI       = 0x6
 	SizeofSockaddrL2        = 0xe
+	SizeofSockaddrRFCOMM    = 0xa
 	SizeofSockaddrCAN       = 0x10
 	SizeofSockaddrALG       = 0x58
 	SizeofSockaddrVM        = 0x10

vendor/golang.org/x/sys/windows/service.go

@@ -43,6 +43,11 @@ const (
 
 	SC_STATUS_PROCESS_INFO = 0
 
+	SC_ACTION_NONE        = 0
+	SC_ACTION_RESTART     = 1
+	SC_ACTION_REBOOT      = 2
+	SC_ACTION_RUN_COMMAND = 3
+
 	SERVICE_STOPPED          = 1
 	SERVICE_START_PENDING    = 2
 	SERVICE_STOP_PENDING     = 3
@@ -148,6 +153,19 @@ type ENUM_SERVICE_STATUS_PROCESS struct {
 	ServiceStatusProcess SERVICE_STATUS_PROCESS
 }
 
+type SERVICE_FAILURE_ACTIONS struct {
+	ResetPeriod  uint32
+	RebootMsg    *uint16
+	Command      *uint16
+	ActionsCount uint32
+	Actions      *SC_ACTION
+}
+
+type SC_ACTION struct {
+	Type  uint32
+	Delay uint32
+}
+
 //sys	CloseServiceHandle(handle Handle) (err error) = advapi32.CloseServiceHandle
 //sys	CreateService(mgr Handle, serviceName *uint16, displayName *uint16, access uint32, srvType uint32, startType uint32, errCtl uint32, pathName *uint16, loadOrderGroup *uint16, tagId *uint32, dependencies *uint16, serviceStartName *uint16, password *uint16) (handle Handle, err error) [failretval==0] = advapi32.CreateServiceW
 //sys	OpenService(mgr Handle, serviceName *uint16, access uint32) (handle Handle, err error) [failretval==0] = advapi32.OpenServiceW

vendor/golang.org/x/sys/windows/types_windows.go

@@ -94,16 +94,29 @@ const (
 	FILE_APPEND_DATA      = 0x00000004
 	FILE_WRITE_ATTRIBUTES = 0x00000100
 
-	FILE_SHARE_READ              = 0x00000001
-	FILE_SHARE_WRITE             = 0x00000002
-	FILE_SHARE_DELETE            = 0x00000004
-	FILE_ATTRIBUTE_READONLY      = 0x00000001
-	FILE_ATTRIBUTE_HIDDEN        = 0x00000002
-	FILE_ATTRIBUTE_SYSTEM        = 0x00000004
-	FILE_ATTRIBUTE_DIRECTORY     = 0x00000010
-	FILE_ATTRIBUTE_ARCHIVE       = 0x00000020
-	FILE_ATTRIBUTE_NORMAL        = 0x00000080
-	FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400
+	FILE_SHARE_READ   = 0x00000001
+	FILE_SHARE_WRITE  = 0x00000002
+	FILE_SHARE_DELETE = 0x00000004
+
+	FILE_ATTRIBUTE_READONLY              = 0x00000001
+	FILE_ATTRIBUTE_HIDDEN                = 0x00000002
+	FILE_ATTRIBUTE_SYSTEM                = 0x00000004
+	FILE_ATTRIBUTE_DIRECTORY             = 0x00000010
+	FILE_ATTRIBUTE_ARCHIVE               = 0x00000020
+	FILE_ATTRIBUTE_DEVICE                = 0x00000040
+	FILE_ATTRIBUTE_NORMAL                = 0x00000080
+	FILE_ATTRIBUTE_TEMPORARY             = 0x00000100
+	FILE_ATTRIBUTE_SPARSE_FILE           = 0x00000200
+	FILE_ATTRIBUTE_REPARSE_POINT         = 0x00000400
+	FILE_ATTRIBUTE_COMPRESSED            = 0x00000800
+	FILE_ATTRIBUTE_OFFLINE               = 0x00001000
+	FILE_ATTRIBUTE_NOT_CONTENT_INDEXED   = 0x00002000
+	FILE_ATTRIBUTE_ENCRYPTED             = 0x00004000
+	FILE_ATTRIBUTE_INTEGRITY_STREAM      = 0x00008000
+	FILE_ATTRIBUTE_VIRTUAL               = 0x00010000
+	FILE_ATTRIBUTE_NO_SCRUB_DATA         = 0x00020000
+	FILE_ATTRIBUTE_RECALL_ON_OPEN        = 0x00040000
+	FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS = 0x00400000
 
 	INVALID_FILE_ATTRIBUTES = 0xffffffff
 

vendor/mvdan.cc/sh/shell/doc.go

@@ -1,9 +0,0 @@
-// Copyright (c) 2017, Daniel Martí <mvdan@mvdan.cc>
-// See LICENSE for licensing information
-
-// Package shell contains high-level features that use the syntax and
-// interp packages under the hood.
-//
-// This package is a work in progress and EXPERIMENTAL; its API is not
-// subject to the 1.x backwards compatibility guarantee.
-package shell // import "mvdan.cc/sh/shell"

vendor/mvdan.cc/sh/shell/expand.go

@@ -1,41 +0,0 @@
-// Copyright (c) 2018, Daniel Martí <mvdan@mvdan.cc>
-// See LICENSE for licensing information
-
-package shell
-
-import (
-	"strings"
-
-	"mvdan.cc/sh/interp"
-	"mvdan.cc/sh/syntax"
-)
-
-// Expand performs shell expansion on s, using env to resolve variables.
-// The expansion will apply to parameter expansions like $var and
-// ${#var}, but also to arithmetic expansions like $((var + 3)), and
-// command substitutions like $(echo foo).
-//
-// If env is nil, the current environment variables are used.
-//
-// Any side effects or modifications to the system are forbidden when
-// interpreting the program. This is enforced via whitelists when
-// executing programs and opening paths.
-func Expand(s string, env func(string) string) (string, error) {
-	p := syntax.NewParser()
-	src := "<<EOF\n" + s + "\nEOF"
-	f, err := p.Parse(strings.NewReader(src), "")
-	if err != nil {
-		return "", err
-	}
-	word := f.Stmts[0].Redirs[0].Hdoc
-	r := pureRunner()
-	if env != nil {
-		r.Env = interp.FuncEnviron(env)
-	}
-	r.Reset()
-	fields := r.Fields(word)
-	// TODO: runner error
-	join := strings.Join(fields, "")
-	// since the heredoc implies a trailing newline
-	return strings.TrimSuffix(join, "\n"), nil
-}

vendor/mvdan.cc/sh/shell/source.go

@@ -1,85 +0,0 @@
-// Copyright (c) 2018, Daniel Martí <mvdan@mvdan.cc>
-// See LICENSE for licensing information
-
-package shell
-
-import (
-	"fmt"
-	"io"
-	"os"
-
-	"mvdan.cc/sh/interp"
-	"mvdan.cc/sh/syntax"
-)
-
-// SourceFile sources a shell file from disk and returns the variables
-// declared in it.
-//
-// A default parser is used; to set custom options, use SourceNode
-// instead.
-func SourceFile(path string) (map[string]interp.Variable, error) {
-	f, err := os.Open(path)
-	if err != nil {
-		return nil, fmt.Errorf("could not open: %v", err)
-	}
-	defer f.Close()
-	p := syntax.NewParser()
-	file, err := p.Parse(f, path)
-	if err != nil {
-		return nil, fmt.Errorf("could not parse: %v", err)
-	}
-	return SourceNode(file)
-}
-
-// purePrograms holds a list of common programs that do not have side
-// effects, or otherwise cannot modify or harm the system that runs
-// them.
-var purePrograms = []string{
-	// string handling
-	"sed", "grep", "tr", "cut", "cat", "head", "tail", "seq", "yes",
-	"wc",
-	// paths
-	"ls", "pwd", "basename", "realpath",
-	// others
-	"env", "sleep", "uniq", "sort",
-}
-
-func pureRunner() *interp.Runner {
-	r := &interp.Runner{}
-	// forbid executing programs that might cause trouble
-	r.Exec = func(ctx interp.Ctxt, path string, args []string) error {
-		for _, name := range purePrograms {
-			if args[0] == name {
-				return interp.DefaultExec(ctx, path, args)
-			}
-		}
-		return fmt.Errorf("program not in whitelist: %s", args[0])
-	}
-	// forbid opening any real files
-	r.Open = interp.OpenDevImpls(func(ctx interp.Ctxt, path string, flags int, mode os.FileMode) (io.ReadWriteCloser, error) {
-		return nil, fmt.Errorf("cannot open path: %s", ctx.UnixPath(path))
-	})
-	return r
-}
-
-// SourceNode sources a shell program from a node and returns the
-// variables declared in it.
-//
-// Any side effects or modifications to the system are forbidden when
-// interpreting the program. This is enforced via whitelists when
-// executing programs and opening paths.
-func SourceNode(node syntax.Node) (map[string]interp.Variable, error) {
-	r := pureRunner()
-	r.Reset()
-	if err := r.Run(node); err != nil {
-		return nil, fmt.Errorf("could not run: %v", err)
-	}
-	// delete the internal shell vars that the user is not
-	// interested in
-	delete(r.Vars, "PWD")
-	delete(r.Vars, "HOME")
-	delete(r.Vars, "PATH")
-	delete(r.Vars, "IFS")
-	delete(r.Vars, "OPTIND")
-	return r.Vars, nil
-}

vendor/mvdan.cc/sh/syntax/lexer.go

@@ -107,6 +107,7 @@ retry:
 		} else if p.fill(); p.bs == nil {
 			p.bsp++
 			p.r = utf8.RuneSelf
+			p.w = 1
 		} else {
 			goto retry
 		}
@@ -232,6 +233,7 @@ skipSpace:
 		w := utf8.RuneLen(r)
 		if bytes.HasPrefix(p.bs[p.bsp-w:], p.stopAt) {
 			p.r = utf8.RuneSelf
+			p.w = 1
 			p.tok = _EOF
 			return
 		}
@@ -748,10 +750,13 @@ func (p *Parser) endLit() (s string) {
 	return
 }
 
-func (p *Parser) numLit() bool {
-	for _, b := range p.litBs {
+func (p *Parser) isLitRedir() bool {
+	lit := p.litBs[:len(p.litBs)-1]
+	if lit[0] == '{' && lit[len(lit)-1] == '}' {
+		return ValidName(string(lit[1 : len(lit)-1]))
+	}
+	for _, b := range lit {
 		switch b {
-		case '>', '<':
 		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
 		default:
 			return false
@@ -800,7 +805,7 @@ loop:
 				break loop
 			}
 		case '/':
-			if p.quote&allParamExp != 0 && p.quote != paramExpExp {
+			if p.quote != paramExpExp {
 				break loop
 			}
 		case ':', '=', '%', '^', ',', '?', '!', '*':
@@ -838,7 +843,7 @@ loop:
 				p.discardLit(2)
 			}
 		case '>', '<':
-			if p.peekByte('(') || !p.numLit() {
+			if p.peekByte('(') || !p.isLitRedir() {
 				tok = _Lit
 			} else {
 				tok = _LitRedir

vendor/mvdan.cc/sh/syntax/nodes.go

@@ -232,7 +232,7 @@ func (a *Assign) End() Pos {
 type Redirect struct {
 	OpPos Pos
 	Op    RedirOperator
-	N     *Lit  // N>, must be a number
+	N     *Lit  // fd>, or {varname}> in Bash
 	Word  *Word // >word
 	Hdoc  *Word // here-document body
 }

vendor/mvdan.cc/sh/syntax/parser.go

@@ -30,6 +30,18 @@ func Variant(l LangVariant) func(*Parser) {
 	return func(p *Parser) { p.lang = l }
 }
 
+func (l LangVariant) String() string {
+	switch l {
+	case LangBash:
+		return "bash"
+	case LangPOSIX:
+		return "posix"
+	case LangMirBSDKorn:
+		return "mksh"
+	}
+	return "unknown shell language variant"
+}
+
 // StopAt configures the lexer to stop at an arbitrary word, treating it
 // as if it were the end of the input. It can contain any characters
 // except whitespace, and cannot be over four bytes in size.
@@ -480,26 +492,60 @@ func (p *Parser) errPass(err error) {
 		p.err = err
 		p.bsp = len(p.bs) + 1
 		p.r = utf8.RuneSelf
+		p.w = 1
 		p.tok = _EOF
 	}
 }
 
-// ParseError represents an error found when parsing a source file.
+// ParseError represents an error found when parsing a source file, from which
+// the parser cannot recover.
 type ParseError struct {
 	Filename string
 	Pos
 	Text string
 }
 
-func (e *ParseError) Error() string {
+func (e ParseError) Error() string {
 	if e.Filename == "" {
 		return fmt.Sprintf("%s: %s", e.Pos.String(), e.Text)
 	}
 	return fmt.Sprintf("%s:%s: %s", e.Filename, e.Pos.String(), e.Text)
 }
 
+// LangError is returned when the parser encounters code that is only valid in
+// other shell language variants. The error includes what feature is not present
+// in the current language variant, and what languages support it.
+type LangError struct {
+	Filename string
+	Pos
+	Feature string
+	Langs   []LangVariant
+}
+
+func (e LangError) Error() string {
+	var buf bytes.Buffer
+	if e.Filename != "" {
+		buf.WriteString(e.Filename + ":")
+	}
+	buf.WriteString(e.Pos.String() + ": ")
+	buf.WriteString(e.Feature)
+	if strings.HasSuffix(e.Feature, "s") {
+		buf.WriteString(" are a ")
+	} else {
+		buf.WriteString(" is a ")
+	}
+	for i, lang := range e.Langs {
+		if i > 0 {
+			buf.WriteString("/")
+		}
+		buf.WriteString(lang.String())
+	}
+	buf.WriteString(" feature")
+	return buf.String()
+}
+
 func (p *Parser) posErr(pos Pos, format string, a ...interface{}) {
-	p.errPass(&ParseError{
+	p.errPass(ParseError{
 		Filename: p.f.Name,
 		Pos:      pos,
 		Text:     fmt.Sprintf(format, a...),
@@ -510,6 +556,15 @@ func (p *Parser) curErr(format string, a ...interface{}) {
 	p.posErr(p.pos, format, a...)
 }
 
+func (p *Parser) langErr(pos Pos, feature string, langs ...LangVariant) {
+	p.errPass(LangError{
+		Filename: p.f.Name,
+		Pos:      pos,
+		Feature:  feature,
+		Langs:    langs,
+	})
+}
+
 func (p *Parser) stmts(fn func(*Stmt) bool, stops ...string) {
 	gotEnd := true
 loop:
@@ -668,7 +723,7 @@ func (p *Parser) wordPart() WordPart {
 		p.next()
 		if p.got(hash) {
 			if p.lang != LangMirBSDKorn {
-				p.posErr(ar.Pos(), "unsigned expressions are a mksh feature")
+				p.langErr(ar.Pos(), "unsigned expressions", LangMirBSDKorn)
 			}
 			ar.Unsigned = true
 		}
@@ -712,9 +767,16 @@ func (p *Parser) wordPart() WordPart {
 		p.pos = posAddCol(p.pos, 1)
 		pe.Param = p.getLit()
 		if pe.Param != nil && pe.Param.Value == "" {
-			// e.g. "$\\\n", which we can't detect above
 			l := p.lit(pe.Dollar, "$")
-			p.next()
+			if p.val == "" {
+				// e.g. "$\\\n" followed by a closing double
+				// quote, so we need the next token.
+				p.next()
+			} else {
+				// e.g. "$\\\"" within double quotes, so we must
+				// keep the rest of the literal characters.
+				l.ValueEnd = posAddCol(l.ValuePos, 1)
+			}
 			return l
 		}
 		return pe
@@ -777,7 +839,7 @@ func (p *Parser) wordPart() WordPart {
 		return cs
 	case globQuest, globStar, globPlus, globAt, globExcl:
 		if p.lang == LangPOSIX {
-			p.curErr("extended globs are a bash feature")
+			p.langErr(p.pos, "extended globs", LangBash, LangMirBSDKorn)
 		}
 		eg := &ExtGlob{Op: GlobOperator(p.tok), OpPos: p.pos}
 		lparens := 1
@@ -1058,7 +1120,7 @@ func (p *Parser) paramExp() *ParamExp {
 	case exclMark:
 		if paramNameOp(p.r) {
 			if p.lang == LangPOSIX {
-				p.curErr("${!foo} is a bash feature")
+				p.langErr(p.pos, "${!foo}", LangBash, LangMirBSDKorn)
 			}
 			pe.Excl = true
 			p.next()
@@ -1067,6 +1129,9 @@ func (p *Parser) paramExp() *ParamExp {
 	op := p.tok
 	switch p.tok {
 	case _Lit, _LitWord:
+		if !numberLiteral(p.val) && !ValidName(p.val) {
+			p.curErr("invalid parameter name")
+		}
 		pe.Param = p.lit(p.pos, p.val)
 		p.next()
 	case quest, minus:
@@ -1093,7 +1158,7 @@ func (p *Parser) paramExp() *ParamExp {
 		return pe
 	case leftBrack:
 		if p.lang == LangPOSIX {
-			p.curErr("arrays are a bash feature")
+			p.langErr(p.pos, "arrays", LangBash, LangMirBSDKorn)
 		}
 		if !ValidName(pe.Param.Value) {
 			p.curErr("cannot index a special parameter name")
@@ -1113,7 +1178,7 @@ func (p *Parser) paramExp() *ParamExp {
 	case slash, dblSlash:
 		// pattern search and replace
 		if p.lang == LangPOSIX {
-			p.curErr("search and replace is a bash feature")
+			p.langErr(p.pos, "search and replace", LangBash, LangMirBSDKorn)
 		}
 		pe.Repl = &Replace{All: p.tok == dblSlash}
 		p.quote = paramExpRepl
@@ -1126,7 +1191,7 @@ func (p *Parser) paramExp() *ParamExp {
 	case colon:
 		// slicing
 		if p.lang == LangPOSIX {
-			p.curErr("slicing is a bash feature")
+			p.langErr(p.pos, "slicing", LangBash, LangMirBSDKorn)
 		}
 		pe.Slice = &Slice{}
 		colonPos := p.pos
@@ -1141,13 +1206,13 @@ func (p *Parser) paramExp() *ParamExp {
 	case caret, dblCaret, comma, dblComma:
 		// upper/lower case
 		if p.lang != LangBash {
-			p.curErr("this expansion operator is a bash feature")
+			p.langErr(p.pos, "this expansion operator", LangBash)
 		}
 		pe.Exp = p.paramExpExp()
 	case at, star:
 		switch {
 		case p.tok == at && p.lang == LangPOSIX:
-			p.curErr("this expansion operator is a bash feature")
+			p.langErr(p.pos, "this expansion operator", LangBash, LangMirBSDKorn)
 		case p.tok == star && !pe.Excl:
 			p.curErr("not a valid parameter expansion operator: %v", p.tok)
 		case pe.Excl:
@@ -1252,6 +1317,15 @@ func ValidName(val string) bool {
 	return true
 }
 
+func numberLiteral(val string) bool {
+	for _, r := range val {
+		if '0' > r || r > '9' {
+			return false
+		}
+	}
+	return true
+}
+
 func (p *Parser) hasValidIdent() bool {
 	if p.tok != _Lit && p.tok != _LitWord {
 		return false
@@ -1319,7 +1393,7 @@ func (p *Parser) getAssign(needEqual bool) *Assign {
 	}
 	if as.Value == nil && p.tok == leftParen {
 		if p.lang == LangPOSIX {
-			p.curErr("arrays are a bash feature")
+			p.langErr(p.pos, "arrays", LangBash, LangMirBSDKorn)
 		}
 		if as.Index != nil {
 			p.curErr("arrays cannot be nested")
@@ -1394,6 +1468,9 @@ func (p *Parser) doRedirect(s *Stmt) {
 		s.Redirs = append(s.Redirs, r)
 	}
 	r.N = p.getLit()
+	if p.lang != LangBash && r.N != nil && r.N.Value[0] == '{' {
+		p.langErr(r.N.Pos(), "{varname} redirects", LangBash)
+	}
 	r.Op, r.OpPos = RedirOperator(p.tok), p.pos
 	p.next()
 	switch r.Op {
@@ -1643,7 +1720,7 @@ func (p *Parser) arithmExpCmd(s *Stmt) {
 	p.next()
 	if p.got(hash) {
 		if p.lang != LangMirBSDKorn {
-			p.posErr(ar.Pos(), "unsigned expressions are a mksh feature")
+			p.langErr(ar.Pos(), "unsigned expressions", LangMirBSDKorn)
 		}
 		ar.Unsigned = true
 	}
@@ -1725,7 +1802,7 @@ func (p *Parser) loop(fpos Pos) Loop {
 	if p.lang != LangBash {
 		switch p.tok {
 		case leftParen, dblLeftParen:
-			p.curErr("c-style fors are a bash feature")
+			p.langErr(p.pos, "c-style fors", LangBash)
 		}
 	}
 	if p.tok == dblLeftParen {
@@ -1909,7 +1986,7 @@ func (p *Parser) testExpr(ftok token, fpos Pos, pastAndOr bool) TestExpr {
 		}
 	case TsReMatch:
 		if p.lang != LangBash {
-			p.curErr("regex tests are a bash feature")
+			p.langErr(p.pos, "regex tests", LangBash)
 		}
 		oldReOpenParens := p.reOpenParens
 		old := p.preNested(testRegexp)

vendor/mvdan.cc/sh/syntax/printer.go

@@ -68,17 +68,12 @@ func NewPrinter(options ...func(*Printer)) *Printer {
 func (p *Printer) Print(w io.Writer, node Node) error {
 	p.reset()
 	p.bufWriter.Reset(w)
-	p.line = node.Pos().Line()
 	switch x := node.(type) {
 	case *File:
-		p.stmts(x.StmtList)
+		p.stmtList(x.StmtList)
 		p.newline(x.End())
 	case *Stmt:
-		sl := StmtList{Stmts: []*Stmt{x}}
-		// StmtList.pos is better than Stmt.Pos, since it also takes
-		// comments into account.
-		p.line = sl.pos().Line()
-		p.stmts(sl)
+		p.stmtList(StmtList{Stmts: []*Stmt{x}})
 	case *Word:
 		p.word(x)
 	case Command:
@@ -152,6 +147,8 @@ type Printer struct {
 	// comment in the same line, breaking programs.
 	pendingComments []Comment
 
+	// firstLine means we are still writing the first line
+	firstLine bool
 	// line is the current line number
 	line uint
 
@@ -180,7 +177,11 @@ func (p *Printer) reset() {
 	p.wantSpace, p.wantNewline = false, false
 	p.commentPadding = 0
 	p.pendingComments = p.pendingComments[:0]
+
+	// minification uses its own newline logic
+	p.firstLine = !p.minify
 	p.line = 0
+
 	p.lastLevel, p.level = 0, 0
 	p.levelIncs = p.levelIncs[:0]
 	p.nestedBinary = false
@@ -354,7 +355,8 @@ func (p *Printer) flushHeredocs() {
 }
 
 func (p *Printer) newlines(pos Pos) {
-	if !p.wantNewline && p.line == 0 && len(p.pendingComments) == 0 {
+	if p.firstLine && len(p.pendingComments) == 0 {
+		p.firstLine = false
 		return // no empty lines at the top
 	}
 	if !p.wantNewline && pos.Line() <= p.line {
@@ -379,11 +381,11 @@ func (p *Printer) rightParen(pos Pos) {
 	p.wantSpace = true
 }
 
-func (p *Printer) semiRsrv(s string, pos Pos, fallback bool) {
+func (p *Printer) semiRsrv(s string, pos Pos) {
 	if p.wantNewline || pos.Line() > p.line {
 		p.newlines(pos)
 	} else {
-		if fallback && !p.wroteSemi {
+		if !p.wroteSemi {
 			p.WriteByte(';')
 		}
 		if !p.minify {
@@ -403,6 +405,9 @@ func (p *Printer) comment(c Comment) {
 
 func (p *Printer) flushComments() {
 	for i, c := range p.pendingComments {
+		p.firstLine = false
+		// We can't call any of the newline methods, as they call this
+		// function and we'd recurse forever.
 		cline := c.Hash.Line()
 		switch {
 		case i > 0, cline > p.line && p.line > 0:
@@ -430,6 +435,9 @@ func (p *Printer) flushComments() {
 }
 
 func (p *Printer) comments(cs []Comment) {
+	if p.minify {
+		return
+	}
 	p.pendingComments = append(p.pendingComments, cs...)
 }
 
@@ -465,12 +473,12 @@ func (p *Printer) wordPart(wp, next WordPart) {
 			p.wantSpace = true
 			p.nestedStmts(x.StmtList, x.Right)
 			p.wantSpace = false
-			p.semiRsrv("}", x.Right, true)
+			p.semiRsrv("}", x.Right)
 		case x.ReplyVar:
 			p.WriteString("${|")
 			p.nestedStmts(x.StmtList, x.Right)
 			p.wantSpace = false
-			p.semiRsrv("}", x.Right, true)
+			p.semiRsrv("}", x.Right)
 		default:
 			p.WriteString("$(")
 			p.wantSpace = len(x.Stmts) > 0 && startsWithLparen(x.Stmts[0])
@@ -478,14 +486,19 @@ func (p *Printer) wordPart(wp, next WordPart) {
 			p.rightParen(x.Right)
 		}
 	case *ParamExp:
-		nextLit, ok := next.(*Lit)
 		litCont := ";"
-		if ok {
+		if nextLit, ok := next.(*Lit); ok {
 			litCont = nextLit.Value[:1]
 		}
-		if p.minify && !x.Excl && !x.Length && !x.Width &&
-			x.Index == nil && x.Slice == nil && x.Repl == nil &&
-			x.Exp == nil && !ValidName(x.Param.Value+litCont) {
+		name := x.Param.Value
+		switch {
+		case !p.minify:
+		case x.Excl, x.Length, x.Width:
+		case x.Index != nil, x.Slice != nil:
+		case x.Repl != nil, x.Exp != nil:
+		case len(name) > 1 && !ValidName(name): // ${10}
+		case ValidName(name + litCont): // ${var}cont
+		default:
 			x2 := *x
 			x2.Short = true
 			p.paramExp(&x2)
@@ -510,7 +523,7 @@ func (p *Printer) wordPart(wp, next WordPart) {
 		}
 		p.WriteString(x.Op.String())
 		p.nestedStmts(x.StmtList, x.Rparen)
-		p.WriteByte(')')
+		p.rightParen(x.Rparen)
 	}
 }
 
@@ -787,8 +800,7 @@ func (p *Printer) stmt(s *Stmt) {
 		if r.OpPos.Line() > p.line {
 			p.bslashNewl()
 		}
-		if p.minify && r.N == nil {
-		} else if p.wantSpace {
+		if p.wantSpace {
 			p.spacePad(r.Pos())
 		}
 		if r.N != nil {
@@ -839,8 +851,7 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 			if r.Pos().After(x.Args[1].Pos()) || r.Op == Hdoc || r.Op == DashHdoc {
 				break
 			}
-			if p.minify && r.N == nil {
-			} else if p.wantSpace {
+			if p.wantSpace {
 				p.spacePad(r.Pos())
 			}
 			if r.N != nil {
@@ -860,7 +871,7 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 		p.WriteByte('{')
 		p.wantSpace = true
 		p.nestedStmts(x.StmtList, x.Rbrace)
-		p.semiRsrv("}", x.Rbrace, true)
+		p.semiRsrv("}", x.Rbrace)
 	case *IfClause:
 		p.ifClause(x, false)
 	case *Subshell:
@@ -880,7 +891,7 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 		p.nestedStmts(x.Cond, Pos{})
 		p.semiOrNewl("do", x.DoPos)
 		p.nestedStmts(x.Do, x.DonePos)
-		p.semiRsrv("done", x.DonePos, true)
+		p.semiRsrv("done", x.DonePos)
 	case *ForClause:
 		if x.Select {
 			p.WriteString("select ")
@@ -890,7 +901,7 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 		p.loop(x.Loop)
 		p.semiOrNewl("do", x.DoPos)
 		p.nestedStmts(x.Do, x.DonePos)
-		p.semiRsrv("done", x.DonePos, true)
+		p.semiRsrv("done", x.DonePos)
 	case *BinaryCmd:
 		p.stmt(x.X)
 		if p.minify || x.Y.Pos().Line() <= p.line {
@@ -973,6 +984,8 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 					p.wantNewline = true
 				}
 				p.spacedToken(ci.Op.String(), ci.OpPos)
+				// avoid ; directly after tokens like ;;
+				p.wroteSemi = true
 				if inlineCom != nil {
 					p.comment(*inlineCom)
 				}
@@ -984,7 +997,7 @@ func (p *Printer) command(cmd Command, redirs []*Redirect) (startRedirs int) {
 			p.flushComments()
 			p.decLevel()
 		}
-		p.semiRsrv("esac", x.Esac, len(x.Items) == 0)
+		p.semiRsrv("esac", x.Esac)
 	case *ArithmCmd:
 		p.WriteString("((")
 		if x.Unsigned {
@@ -1037,17 +1050,17 @@ func (p *Printer) ifClause(ic *IfClause, elif bool) {
 	p.semiOrNewl("then", ic.ThenPos)
 	p.nestedStmts(ic.Then, ic.bodyEndPos())
 	if ic.FollowedByElif() {
-		p.semiRsrv("elif", ic.ElsePos, true)
+		p.semiRsrv("elif", ic.ElsePos)
 		p.ifClause(ic.Else.Stmts[0].Cmd.(*IfClause), true)
 		return
 	}
 	if !ic.Else.empty() {
-		p.semiRsrv("else", ic.ElsePos, true)
+		p.semiRsrv("else", ic.ElsePos)
 		p.nestedStmts(ic.Else, ic.FiPos)
 	} else if ic.ElsePos.IsValid() {
 		p.line = ic.ElsePos.Line()
 	}
-	p.semiRsrv("fi", ic.FiPos, true)
+	p.semiRsrv("fi", ic.FiPos)
 }
 
 func startsWithLparen(s *Stmt) bool {
@@ -1069,7 +1082,7 @@ func (p *Printer) hasInline(s *Stmt) bool {
 	return false
 }
 
-func (p *Printer) stmts(sl StmtList) {
+func (p *Printer) stmtList(sl StmtList) {
 	sep := p.wantNewline ||
 		(len(sl.Stmts) > 0 && sl.Stmts[0].Pos().Line() > p.line)
 	inlineIndent := 0
@@ -1216,7 +1229,7 @@ func (p *Printer) nestedStmts(sl StmtList, closing Pos) {
 		//     do foo; done
 		p.wantNewline = true
 	}
-	p.stmts(sl)
+	p.stmtList(sl)
 	if closing.IsValid() {
 		p.flushComments()
 	}