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Diffstat (limited to 'vendor/github.com/moby')
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diff --git a/vendor/github.com/moby/sys/mount/LICENSE b/vendor/github.com/moby/sys/mount/LICENSE new file mode 100644 index 000000000..d64569567 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/moby/sys/mount/flags.go b/vendor/github.com/moby/sys/mount/flags.go new file mode 100644 index 000000000..d514a9d8e --- /dev/null +++ b/vendor/github.com/moby/sys/mount/flags.go @@ -0,0 +1,137 @@ +package mount + +import ( + "fmt" + "strings" +) + +var flags = map[string]struct { + clear bool + flag int +}{ + "defaults": {false, 0}, + "ro": {false, RDONLY}, + "rw": {true, RDONLY}, + "suid": {true, NOSUID}, + "nosuid": {false, NOSUID}, + "dev": {true, NODEV}, + "nodev": {false, NODEV}, + "exec": {true, NOEXEC}, + "noexec": {false, NOEXEC}, + "sync": {false, SYNCHRONOUS}, + "async": {true, SYNCHRONOUS}, + "dirsync": {false, DIRSYNC}, + "remount": {false, REMOUNT}, + "mand": {false, MANDLOCK}, + "nomand": {true, MANDLOCK}, + "atime": {true, NOATIME}, + "noatime": {false, NOATIME}, + "diratime": {true, NODIRATIME}, + "nodiratime": {false, NODIRATIME}, + "bind": {false, BIND}, + "rbind": {false, RBIND}, + "unbindable": {false, UNBINDABLE}, + "runbindable": {false, RUNBINDABLE}, + "private": {false, PRIVATE}, + "rprivate": {false, RPRIVATE}, + "shared": {false, SHARED}, + "rshared": {false, RSHARED}, + "slave": {false, SLAVE}, + "rslave": {false, RSLAVE}, + "relatime": {false, RELATIME}, + "norelatime": {true, RELATIME}, + "strictatime": {false, STRICTATIME}, + "nostrictatime": {true, STRICTATIME}, +} + +var validFlags = map[string]bool{ + "": true, + "size": true, + "mode": true, + "uid": true, + "gid": true, + "nr_inodes": true, + "nr_blocks": true, + "mpol": true, +} + +var propagationFlags = map[string]bool{ + "bind": true, + "rbind": true, + "unbindable": true, + "runbindable": true, + "private": true, + "rprivate": true, + "shared": true, + "rshared": true, + "slave": true, + "rslave": true, +} + +// MergeTmpfsOptions merge mount options to make sure there is no duplicate. +func MergeTmpfsOptions(options []string) ([]string, error) { + // We use collisions maps to remove duplicates. + // For flag, the key is the flag value (the key for propagation flag is -1) + // For data=value, the key is the data + flagCollisions := map[int]bool{} + dataCollisions := map[string]bool{} + + var newOptions []string + // We process in reverse order + for i := len(options) - 1; i >= 0; i-- { + option := options[i] + if option == "defaults" { + continue + } + if f, ok := flags[option]; ok && f.flag != 0 { + // There is only one propagation mode + key := f.flag + if propagationFlags[option] { + key = -1 + } + // Check to see if there is collision for flag + if !flagCollisions[key] { + // We prepend the option and add to collision map + newOptions = append([]string{option}, newOptions...) + flagCollisions[key] = true + } + continue + } + opt := strings.SplitN(option, "=", 2) + if len(opt) != 2 || !validFlags[opt[0]] { + return nil, fmt.Errorf("Invalid tmpfs option %q", opt) + } + if !dataCollisions[opt[0]] { + // We prepend the option and add to collision map + newOptions = append([]string{option}, newOptions...) + dataCollisions[opt[0]] = true + } + } + + return newOptions, nil +} + +// Parse fstab type mount options into mount() flags +// and device specific data +func parseOptions(options string) (int, string) { + var ( + flag int + data []string + ) + + for _, o := range strings.Split(options, ",") { + // If the option does not exist in the flags table or the flag + // is not supported on the platform, + // then it is a data value for a specific fs type + if f, exists := flags[o]; exists && f.flag != 0 { + if f.clear { + flag &= ^f.flag + } else { + flag |= f.flag + } + } else { + data = append(data, o) + } + } + return flag, strings.Join(data, ",") +} diff --git a/vendor/github.com/moby/sys/mount/flags_freebsd.go b/vendor/github.com/moby/sys/mount/flags_freebsd.go new file mode 100644 index 000000000..69c50680d --- /dev/null +++ b/vendor/github.com/moby/sys/mount/flags_freebsd.go @@ -0,0 +1,48 @@ +// +build freebsd,cgo + +package mount + +/* +#include <sys/mount.h> +*/ +import "C" + +const ( + // RDONLY will mount the filesystem as read-only. + RDONLY = C.MNT_RDONLY + + // NOSUID will not allow set-user-identifier or set-group-identifier bits to + // take effect. + NOSUID = C.MNT_NOSUID + + // NOEXEC will not allow execution of any binaries on the mounted file system. + NOEXEC = C.MNT_NOEXEC + + // SYNCHRONOUS will allow any I/O to the file system to be done synchronously. + SYNCHRONOUS = C.MNT_SYNCHRONOUS + + // NOATIME will not update the file access time when reading from a file. + NOATIME = C.MNT_NOATIME +) + +// These flags are unsupported. +const ( + BIND = 0 + DIRSYNC = 0 + MANDLOCK = 0 + NODEV = 0 + NODIRATIME = 0 + UNBINDABLE = 0 + RUNBINDABLE = 0 + PRIVATE = 0 + RPRIVATE = 0 + SHARED = 0 + RSHARED = 0 + SLAVE = 0 + RSLAVE = 0 + RBIND = 0 + RELATIME = 0 + REMOUNT = 0 + STRICTATIME = 0 + mntDetach = 0 +) diff --git a/vendor/github.com/moby/sys/mount/flags_linux.go b/vendor/github.com/moby/sys/mount/flags_linux.go new file mode 100644 index 000000000..0425d0dd6 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/flags_linux.go @@ -0,0 +1,87 @@ +package mount + +import ( + "golang.org/x/sys/unix" +) + +const ( + // RDONLY will mount the file system read-only. + RDONLY = unix.MS_RDONLY + + // NOSUID will not allow set-user-identifier or set-group-identifier bits to + // take effect. + NOSUID = unix.MS_NOSUID + + // NODEV will not interpret character or block special devices on the file + // system. + NODEV = unix.MS_NODEV + + // NOEXEC will not allow execution of any binaries on the mounted file system. + NOEXEC = unix.MS_NOEXEC + + // SYNCHRONOUS will allow I/O to the file system to be done synchronously. + SYNCHRONOUS = unix.MS_SYNCHRONOUS + + // DIRSYNC will force all directory updates within the file system to be done + // synchronously. This affects the following system calls: create, link, + // unlink, symlink, mkdir, rmdir, mknod and rename. + DIRSYNC = unix.MS_DIRSYNC + + // REMOUNT will attempt to remount an already-mounted file system. This is + // commonly used to change the mount flags for a file system, especially to + // make a readonly file system writeable. It does not change device or mount + // point. + REMOUNT = unix.MS_REMOUNT + + // MANDLOCK will force mandatory locks on a filesystem. + MANDLOCK = unix.MS_MANDLOCK + + // NOATIME will not update the file access time when reading from a file. + NOATIME = unix.MS_NOATIME + + // NODIRATIME will not update the directory access time. + NODIRATIME = unix.MS_NODIRATIME + + // BIND remounts a subtree somewhere else. + BIND = unix.MS_BIND + + // RBIND remounts a subtree and all possible submounts somewhere else. + RBIND = unix.MS_BIND | unix.MS_REC + + // UNBINDABLE creates a mount which cannot be cloned through a bind operation. + UNBINDABLE = unix.MS_UNBINDABLE + + // RUNBINDABLE marks the entire mount tree as UNBINDABLE. + RUNBINDABLE = unix.MS_UNBINDABLE | unix.MS_REC + + // PRIVATE creates a mount which carries no propagation abilities. + PRIVATE = unix.MS_PRIVATE + + // RPRIVATE marks the entire mount tree as PRIVATE. + RPRIVATE = unix.MS_PRIVATE | unix.MS_REC + + // SLAVE creates a mount which receives propagation from its master, but not + // vice versa. + SLAVE = unix.MS_SLAVE + + // RSLAVE marks the entire mount tree as SLAVE. + RSLAVE = unix.MS_SLAVE | unix.MS_REC + + // SHARED creates a mount which provides the ability to create mirrors of + // that mount such that mounts and unmounts within any of the mirrors + // propagate to the other mirrors. + SHARED = unix.MS_SHARED + + // RSHARED marks the entire mount tree as SHARED. + RSHARED = unix.MS_SHARED | unix.MS_REC + + // RELATIME updates inode access times relative to modify or change time. + RELATIME = unix.MS_RELATIME + + // STRICTATIME allows to explicitly request full atime updates. This makes + // it possible for the kernel to default to relatime or noatime but still + // allow userspace to override it. + STRICTATIME = unix.MS_STRICTATIME + + mntDetach = unix.MNT_DETACH +) diff --git a/vendor/github.com/moby/sys/mount/flags_unsupported.go b/vendor/github.com/moby/sys/mount/flags_unsupported.go new file mode 100644 index 000000000..e1d64f6b9 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/flags_unsupported.go @@ -0,0 +1,30 @@ +// +build !linux,!freebsd freebsd,!cgo + +package mount + +// These flags are unsupported. +const ( + BIND = 0 + DIRSYNC = 0 + MANDLOCK = 0 + NOATIME = 0 + NODEV = 0 + NODIRATIME = 0 + NOEXEC = 0 + NOSUID = 0 + UNBINDABLE = 0 + RUNBINDABLE = 0 + PRIVATE = 0 + RPRIVATE = 0 + SHARED = 0 + RSHARED = 0 + SLAVE = 0 + RSLAVE = 0 + RBIND = 0 + RELATIME = 0 + REMOUNT = 0 + STRICTATIME = 0 + SYNCHRONOUS = 0 + RDONLY = 0 + mntDetach = 0 +) diff --git a/vendor/github.com/moby/sys/mount/go.mod b/vendor/github.com/moby/sys/mount/go.mod new file mode 100644 index 000000000..21cef0a95 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/go.mod @@ -0,0 +1,8 @@ +module github.com/moby/sys/mount + +go 1.14 + +require ( + github.com/moby/sys/mountinfo v0.1.0 + golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae +) diff --git a/vendor/github.com/moby/sys/mount/go.sum b/vendor/github.com/moby/sys/mount/go.sum new file mode 100644 index 000000000..ae99f8596 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/go.sum @@ -0,0 +1,4 @@ +github.com/moby/sys/mountinfo v0.1.0 h1:r8vMRbMAFEAfiNptYVokP+nfxPJzvRuia5e2vzXtENo= +github.com/moby/sys/mountinfo v0.1.0/go.mod h1:w2t2Avltqx8vE7gX5l+QiBKxODu2TX0+Syr3h52Tw4o= +golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8= +golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= diff --git a/vendor/github.com/moby/sys/mount/mount.go b/vendor/github.com/moby/sys/mount/mount.go new file mode 100644 index 000000000..4a7bb27b1 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/mount.go @@ -0,0 +1,67 @@ +// +build go1.13 + +package mount + +import ( + "fmt" + "sort" + + "github.com/moby/sys/mountinfo" +) + +// Mount will mount filesystem according to the specified configuration. +// Options must be specified like the mount or fstab unix commands: +// "opt1=val1,opt2=val2". See flags.go for supported option flags. +func Mount(device, target, mType, options string) error { + flag, data := parseOptions(options) + return mount(device, target, mType, uintptr(flag), data) +} + +// Unmount lazily unmounts a filesystem on supported platforms, otherwise does +// a normal unmount. If target is not a mount point, no error is returned. +func Unmount(target string) error { + return unmount(target, mntDetach) +} + +// RecursiveUnmount unmounts the target and all mounts underneath, starting +// with the deepest mount first. The argument does not have to be a mount +// point itself. +func RecursiveUnmount(target string) error { + // Fast path, works if target is a mount point that can be unmounted. + // On Linux, mntDetach flag ensures a recursive unmount. For other + // platforms, if there are submounts, we'll get EBUSY (and fall back + // to the slow path). NOTE we do not ignore EINVAL here as target might + // not be a mount point itself (but there can be mounts underneath). + if err := unmountBare(target, mntDetach); err == nil { + return nil + } + + // Slow path: get all submounts, sort, unmount one by one. + mounts, err := mountinfo.GetMounts(mountinfo.PrefixFilter(target)) + if err != nil { + return err + } + + // Make the deepest mount be first + sort.Slice(mounts, func(i, j int) bool { + return len(mounts[i].Mountpoint) > len(mounts[j].Mountpoint) + }) + + var suberr error + for i, m := range mounts { + err = unmount(m.Mountpoint, mntDetach) + if err != nil { + if i == len(mounts)-1 { // last mount + return fmt.Errorf("%w (possible cause: %s)", err, suberr) + } + // This is a submount, we can ignore the error for now, + // the final unmount will fail if this is a real problem. + // With that in mind, the _first_ failed unmount error + // might be the real error cause, so let's keep it. + if suberr == nil { + suberr = err + } + } + } + return nil +} diff --git a/vendor/github.com/moby/sys/mount/mount_errors.go b/vendor/github.com/moby/sys/mount/mount_errors.go new file mode 100644 index 000000000..936a26373 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/mount_errors.go @@ -0,0 +1,46 @@ +// +build !windows + +package mount + +import "strconv" + +// mountError records an error from mount or unmount operation +type mountError struct { + op string + source, target string + flags uintptr + data string + err error +} + +func (e *mountError) Error() string { + out := e.op + " " + + if e.source != "" { + out += e.source + ":" + e.target + } else { + out += e.target + } + + if e.flags != uintptr(0) { + out += ", flags: 0x" + strconv.FormatUint(uint64(e.flags), 16) + } + if e.data != "" { + out += ", data: " + e.data + } + + out += ": " + e.err.Error() + return out +} + +// Cause returns the underlying cause of the error. +// This is a convention used in github.com/pkg/errors +func (e *mountError) Cause() error { + return e.err +} + +// Unwrap returns the underlying error. +// This is a convention used in golang 1.13+ +func (e *mountError) Unwrap() error { + return e.err +} diff --git a/vendor/github.com/moby/sys/mount/mounter_freebsd.go b/vendor/github.com/moby/sys/mount/mounter_freebsd.go new file mode 100644 index 000000000..3964af4f7 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/mounter_freebsd.go @@ -0,0 +1,59 @@ +package mount + +/* +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/_iovec.h> +#include <sys/mount.h> +#include <sys/param.h> +*/ +import "C" + +import ( + "strings" + "syscall" + "unsafe" +) + +func allocateIOVecs(options []string) []C.struct_iovec { + out := make([]C.struct_iovec, len(options)) + for i, option := range options { + out[i].iov_base = unsafe.Pointer(C.CString(option)) + out[i].iov_len = C.size_t(len(option) + 1) + } + return out +} + +func mount(device, target, mType string, flag uintptr, data string) error { + isNullFS := false + + xs := strings.Split(data, ",") + for _, x := range xs { + if x == "bind" { + isNullFS = true + } + } + + options := []string{"fspath", target} + if isNullFS { + options = append(options, "fstype", "nullfs", "target", device) + } else { + options = append(options, "fstype", mType, "from", device) + } + rawOptions := allocateIOVecs(options) + for _, rawOption := range rawOptions { + defer C.free(rawOption.iov_base) + } + + if errno := C.nmount(&rawOptions[0], C.uint(len(options)), C.int(flag)); errno != 0 { + return &mountError{ + op: "mount", + source: device, + target: target, + flags: flag, + err: syscall.Errno(errno), + } + } + return nil +} diff --git a/vendor/github.com/moby/sys/mount/mounter_linux.go b/vendor/github.com/moby/sys/mount/mounter_linux.go new file mode 100644 index 000000000..0c477cc3d --- /dev/null +++ b/vendor/github.com/moby/sys/mount/mounter_linux.go @@ -0,0 +1,73 @@ +package mount + +import ( + "golang.org/x/sys/unix" +) + +const ( + // ptypes is the set propagation types. + ptypes = unix.MS_SHARED | unix.MS_PRIVATE | unix.MS_SLAVE | unix.MS_UNBINDABLE + + // pflags is the full set valid flags for a change propagation call. + pflags = ptypes | unix.MS_REC | unix.MS_SILENT + + // broflags is the combination of bind and read only + broflags = unix.MS_BIND | unix.MS_RDONLY +) + +// isremount returns true if either device name or flags identify a remount request, false otherwise. +func isremount(device string, flags uintptr) bool { + switch { + // We treat device "" and "none" as a remount request to provide compatibility with + // requests that don't explicitly set MS_REMOUNT such as those manipulating bind mounts. + case flags&unix.MS_REMOUNT != 0, device == "", device == "none": + return true + default: + return false + } +} + +func mount(device, target, mType string, flags uintptr, data string) error { + oflags := flags &^ ptypes + if !isremount(device, flags) || data != "" { + // Initial call applying all non-propagation flags for mount + // or remount with changed data + if err := unix.Mount(device, target, mType, oflags, data); err != nil { + return &mountError{ + op: "mount", + source: device, + target: target, + flags: oflags, + data: data, + err: err, + } + } + } + + if flags&ptypes != 0 { + // Change the propagation type. + if err := unix.Mount("", target, "", flags&pflags, ""); err != nil { + return &mountError{ + op: "remount", + target: target, + flags: flags & pflags, + err: err, + } + } + } + + if oflags&broflags == broflags { + // Remount the bind to apply read only. + if err := unix.Mount("", target, "", oflags|unix.MS_REMOUNT, ""); err != nil { + return &mountError{ + op: "remount-ro", + target: target, + flags: oflags | unix.MS_REMOUNT, + err: err, + } + + } + } + + return nil +} diff --git a/vendor/github.com/moby/sys/mount/mounter_unsupported.go b/vendor/github.com/moby/sys/mount/mounter_unsupported.go new file mode 100644 index 000000000..15380671c --- /dev/null +++ b/vendor/github.com/moby/sys/mount/mounter_unsupported.go @@ -0,0 +1,7 @@ +// +build !linux,!freebsd freebsd,!cgo + +package mount + +func mount(device, target, mType string, flag uintptr, data string) error { + panic("Not implemented") +} diff --git a/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go b/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go new file mode 100644 index 000000000..948e6bacd --- /dev/null +++ b/vendor/github.com/moby/sys/mount/sharedsubtree_linux.go @@ -0,0 +1,73 @@ +package mount + +import "github.com/moby/sys/mountinfo" + +// MakeShared ensures a mounted filesystem has the SHARED mount option enabled. +// See the supported options in flags.go for further reference. +func MakeShared(mountPoint string) error { + return ensureMountedAs(mountPoint, SHARED) +} + +// MakeRShared ensures a mounted filesystem has the RSHARED mount option enabled. +// See the supported options in flags.go for further reference. +func MakeRShared(mountPoint string) error { + return ensureMountedAs(mountPoint, RSHARED) +} + +// MakePrivate ensures a mounted filesystem has the PRIVATE mount option enabled. +// See the supported options in flags.go for further reference. +func MakePrivate(mountPoint string) error { + return ensureMountedAs(mountPoint, PRIVATE) +} + +// MakeRPrivate ensures a mounted filesystem has the RPRIVATE mount option +// enabled. See the supported options in flags.go for further reference. +func MakeRPrivate(mountPoint string) error { + return ensureMountedAs(mountPoint, RPRIVATE) +} + +// MakeSlave ensures a mounted filesystem has the SLAVE mount option enabled. +// See the supported options in flags.go for further reference. +func MakeSlave(mountPoint string) error { + return ensureMountedAs(mountPoint, SLAVE) +} + +// MakeRSlave ensures a mounted filesystem has the RSLAVE mount option enabled. +// See the supported options in flags.go for further reference. +func MakeRSlave(mountPoint string) error { + return ensureMountedAs(mountPoint, RSLAVE) +} + +// MakeUnbindable ensures a mounted filesystem has the UNBINDABLE mount option +// enabled. See the supported options in flags.go for further reference. +func MakeUnbindable(mountPoint string) error { + return ensureMountedAs(mountPoint, UNBINDABLE) +} + +// MakeRUnbindable ensures a mounted filesystem has the RUNBINDABLE mount +// option enabled. See the supported options in flags.go for further reference. +func MakeRUnbindable(mountPoint string) error { + return ensureMountedAs(mountPoint, RUNBINDABLE) +} + +// MakeMount ensures that the file or directory given is a mount point, +// bind mounting it to itself it case it is not. +func MakeMount(mnt string) error { + mounted, err := mountinfo.Mounted(mnt) + if err != nil { + return err + } + if mounted { + return nil + } + + return mount(mnt, mnt, "none", uintptr(BIND), "") +} + +func ensureMountedAs(mnt string, flags int) error { + if err := MakeMount(mnt); err != nil { + return err + } + + return mount("", mnt, "none", uintptr(flags), "") +} diff --git a/vendor/github.com/moby/sys/mount/unmount_unix.go b/vendor/github.com/moby/sys/mount/unmount_unix.go new file mode 100644 index 000000000..924d059a7 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/unmount_unix.go @@ -0,0 +1,26 @@ +// +build !windows + +package mount + +import "golang.org/x/sys/unix" + +func unmountBare(target string, flags int) error { + return unix.Unmount(target, flags) +} + +func unmount(target string, flags int) error { + err := unmountBare(target, flags) + if err == nil || err == unix.EINVAL { + // Ignore "not mounted" error here. Note the same error + // can be returned if flags are invalid, so this code + // assumes that the flags value is always correct. + return nil + } + + return &mountError{ + op: "umount", + target: target, + flags: uintptr(flags), + err: err, + } +} diff --git a/vendor/github.com/moby/sys/mount/unmount_unsupported.go b/vendor/github.com/moby/sys/mount/unmount_unsupported.go new file mode 100644 index 000000000..4d6073ec6 --- /dev/null +++ b/vendor/github.com/moby/sys/mount/unmount_unsupported.go @@ -0,0 +1,11 @@ +// +build windows + +package mount + +func unmountBare(_ string, _ int) error { + panic("Not implemented") +} + +func unmount(_ string, _ int) error { + panic("Not implemented") +} diff --git a/vendor/github.com/moby/term/.gitignore b/vendor/github.com/moby/term/.gitignore new file mode 100644 index 000000000..b0747ff01 --- /dev/null +++ b/vendor/github.com/moby/term/.gitignore @@ -0,0 +1,8 @@ +# if you want to ignore files created by your editor/tools, consider using a +# global .gitignore or .git/info/exclude see https://help.github.com/articles/ignoring-files +.* +!.github +!.gitignore +profile.out +# support running go modules in vendor mode for local development +vendor/ diff --git a/vendor/github.com/moby/term/LICENSE b/vendor/github.com/moby/term/LICENSE new file mode 100644 index 000000000..6d8d58fb6 --- /dev/null +++ b/vendor/github.com/moby/term/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + https://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. 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The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2013-2018 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/moby/term/README.md b/vendor/github.com/moby/term/README.md new file mode 100644 index 000000000..0ce92cc33 --- /dev/null +++ b/vendor/github.com/moby/term/README.md @@ -0,0 +1,36 @@ +# term - utilities for dealing with terminals + + [](https://godoc.org/github.com/moby/term) [](https://goreportcard.com/report/github.com/moby/term) + +term provides structures and helper functions to work with terminal (state, sizes). + +#### Using term + +```go +package main + +import ( + "log" + "os" + + "github.com/moby/term" +) + +func main() { + fd := os.Stdin.Fd() + if term.IsTerminal(fd) { + ws, err := term.GetWinsize(fd) + if err != nil { + log.Fatalf("term.GetWinsize: %s", err) + } + log.Printf("%d:%d\n", ws.Height, ws.Width) + } +} +``` + +## Contributing + +Want to hack on term? [Docker's contributions guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md) apply. + +## Copyright and license +Code and documentation copyright 2015 Docker, inc. Code released under the Apache 2.0 license. Docs released under Creative commons. diff --git a/vendor/github.com/moby/term/ascii.go b/vendor/github.com/moby/term/ascii.go new file mode 100644 index 000000000..55873c055 --- /dev/null +++ b/vendor/github.com/moby/term/ascii.go @@ -0,0 +1,66 @@ +package term + +import ( + "fmt" + "strings" +) + +// ASCII list the possible supported ASCII key sequence +var ASCII = []string{ + "ctrl-@", + "ctrl-a", + "ctrl-b", + "ctrl-c", + "ctrl-d", + "ctrl-e", + "ctrl-f", + "ctrl-g", + "ctrl-h", + "ctrl-i", + "ctrl-j", + "ctrl-k", + "ctrl-l", + "ctrl-m", + "ctrl-n", + "ctrl-o", + "ctrl-p", + "ctrl-q", + "ctrl-r", + "ctrl-s", + "ctrl-t", + "ctrl-u", + "ctrl-v", + "ctrl-w", + "ctrl-x", + "ctrl-y", + "ctrl-z", + "ctrl-[", + "ctrl-\\", + "ctrl-]", + "ctrl-^", + "ctrl-_", +} + +// ToBytes converts a string representing a suite of key-sequence to the corresponding ASCII code. +func ToBytes(keys string) ([]byte, error) { + codes := []byte{} +next: + for _, key := range strings.Split(keys, ",") { + if len(key) != 1 { + for code, ctrl := range ASCII { + if ctrl == key { + codes = append(codes, byte(code)) + continue next + } + } + if key == "DEL" { + codes = append(codes, 127) + } else { + return nil, fmt.Errorf("Unknown character: '%s'", key) + } + } else { + codes = append(codes, key[0]) + } + } + return codes, nil +} diff --git a/vendor/github.com/moby/term/go.mod b/vendor/github.com/moby/term/go.mod new file mode 100644 index 000000000..4088df8db --- /dev/null +++ b/vendor/github.com/moby/term/go.mod @@ -0,0 +1,12 @@ +module github.com/moby/term + +go 1.13 + +require ( + github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 + github.com/creack/pty v1.1.9 + github.com/google/go-cmp v0.4.0 + github.com/pkg/errors v0.9.1 // indirect + golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a + gotest.tools/v3 v3.0.2 +) diff --git a/vendor/github.com/moby/term/go.sum b/vendor/github.com/moby/term/go.sum new file mode 100644 index 000000000..64d7ef7fa --- /dev/null +++ b/vendor/github.com/moby/term/go.sum @@ -0,0 +1,23 @@ +github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8= +github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8= +github.com/creack/pty v1.1.9 h1:uDmaGzcdjhF4i/plgjmEsriH11Y0o7RKapEf/LDaM3w= +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= +github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4= +github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= +github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a h1:i47hUS795cOydZI4AwJQCKXOr4BvxzvikwDoDtHhP2Y= +golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +gotest.tools/v3 v3.0.2 h1:kG1BFyqVHuQoVQiR1bWGnfz/fmHvvuiSPIV7rvl360E= +gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk= diff --git a/vendor/github.com/moby/term/proxy.go b/vendor/github.com/moby/term/proxy.go new file mode 100644 index 000000000..c47756b89 --- /dev/null +++ b/vendor/github.com/moby/term/proxy.go @@ -0,0 +1,88 @@ +package term + +import ( + "io" +) + +// EscapeError is special error which returned by a TTY proxy reader's Read() +// method in case its detach escape sequence is read. +type EscapeError struct{} + +func (EscapeError) Error() string { + return "read escape sequence" +} + +// escapeProxy is used only for attaches with a TTY. It is used to proxy +// stdin keypresses from the underlying reader and look for the passed in +// escape key sequence to signal a detach. +type escapeProxy struct { + escapeKeys []byte + escapeKeyPos int + r io.Reader + buf []byte +} + +// NewEscapeProxy returns a new TTY proxy reader which wraps the given reader +// and detects when the specified escape keys are read, in which case the Read +// method will return an error of type EscapeError. +func NewEscapeProxy(r io.Reader, escapeKeys []byte) io.Reader { + return &escapeProxy{ + escapeKeys: escapeKeys, + r: r, + } +} + +func (r *escapeProxy) Read(buf []byte) (n int, err error) { + if len(r.escapeKeys) > 0 && r.escapeKeyPos == len(r.escapeKeys) { + return 0, EscapeError{} + } + + if len(r.buf) > 0 { + n = copy(buf, r.buf) + r.buf = r.buf[n:] + } + + nr, err := r.r.Read(buf[n:]) + n += nr + if len(r.escapeKeys) == 0 { + return n, err + } + + for i := 0; i < n; i++ { + if buf[i] == r.escapeKeys[r.escapeKeyPos] { + r.escapeKeyPos++ + + // Check if the full escape sequence is matched. + if r.escapeKeyPos == len(r.escapeKeys) { + n = i + 1 - r.escapeKeyPos + if n < 0 { + n = 0 + } + return n, EscapeError{} + } + continue + } + + // If we need to prepend a partial escape sequence from the previous + // read, make sure the new buffer size doesn't exceed len(buf). + // Otherwise, preserve any extra data in a buffer for the next read. + if i < r.escapeKeyPos { + preserve := make([]byte, 0, r.escapeKeyPos+n) + preserve = append(preserve, r.escapeKeys[:r.escapeKeyPos]...) + preserve = append(preserve, buf[:n]...) + n = copy(buf, preserve) + i += r.escapeKeyPos + r.buf = append(r.buf, preserve[n:]...) + } + r.escapeKeyPos = 0 + } + + // If we're in the middle of reading an escape sequence, make sure we don't + // let the caller read it. If later on we find that this is not the escape + // sequence, we'll prepend it back to buf. + n -= r.escapeKeyPos + if n < 0 { + n = 0 + } + return n, err +} diff --git a/vendor/github.com/moby/term/tc.go b/vendor/github.com/moby/term/tc.go new file mode 100644 index 000000000..65556027a --- /dev/null +++ b/vendor/github.com/moby/term/tc.go @@ -0,0 +1,19 @@ +// +build !windows + +package term + +import ( + "golang.org/x/sys/unix" +) + +func tcget(fd uintptr) (*Termios, error) { + p, err := unix.IoctlGetTermios(int(fd), getTermios) + if err != nil { + return nil, err + } + return p, nil +} + +func tcset(fd uintptr, p *Termios) error { + return unix.IoctlSetTermios(int(fd), setTermios, p) +} diff --git a/vendor/github.com/moby/term/term.go b/vendor/github.com/moby/term/term.go new file mode 100644 index 000000000..29c6acf1c --- /dev/null +++ b/vendor/github.com/moby/term/term.go @@ -0,0 +1,120 @@ +// +build !windows + +// Package term provides structures and helper functions to work with +// terminal (state, sizes). +package term + +import ( + "errors" + "fmt" + "io" + "os" + "os/signal" + + "golang.org/x/sys/unix" +) + +var ( + // ErrInvalidState is returned if the state of the terminal is invalid. + ErrInvalidState = errors.New("Invalid terminal state") +) + +// State represents the state of the terminal. +type State struct { + termios Termios +} + +// Winsize represents the size of the terminal window. +type Winsize struct { + Height uint16 + Width uint16 + x uint16 + y uint16 +} + +// StdStreams returns the standard streams (stdin, stdout, stderr). +func StdStreams() (stdIn io.ReadCloser, stdOut, stdErr io.Writer) { + return os.Stdin, os.Stdout, os.Stderr +} + +// GetFdInfo returns the file descriptor for an os.File and indicates whether the file represents a terminal. +func GetFdInfo(in interface{}) (uintptr, bool) { + var inFd uintptr + var isTerminalIn bool + if file, ok := in.(*os.File); ok { + inFd = file.Fd() + isTerminalIn = IsTerminal(inFd) + } + return inFd, isTerminalIn +} + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal(fd uintptr) bool { + _, err := tcget(fd) + return err == nil +} + +// RestoreTerminal restores the terminal connected to the given file descriptor +// to a previous state. +func RestoreTerminal(fd uintptr, state *State) error { + if state == nil { + return ErrInvalidState + } + return tcset(fd, &state.termios) +} + +// SaveState saves the state of the terminal connected to the given file descriptor. +func SaveState(fd uintptr) (*State, error) { + termios, err := tcget(fd) + if err != nil { + return nil, err + } + return &State{termios: *termios}, nil +} + +// DisableEcho applies the specified state to the terminal connected to the file +// descriptor, with echo disabled. +func DisableEcho(fd uintptr, state *State) error { + newState := state.termios + newState.Lflag &^= unix.ECHO + + if err := tcset(fd, &newState); err != nil { + return err + } + handleInterrupt(fd, state) + return nil +} + +// SetRawTerminal puts the terminal connected to the given file descriptor into +// raw mode and returns the previous state. On UNIX, this puts both the input +// and output into raw mode. On Windows, it only puts the input into raw mode. +func SetRawTerminal(fd uintptr) (*State, error) { + oldState, err := MakeRaw(fd) + if err != nil { + return nil, err + } + handleInterrupt(fd, oldState) + return oldState, err +} + +// SetRawTerminalOutput puts the output of terminal connected to the given file +// descriptor into raw mode. On UNIX, this does nothing and returns nil for the +// state. On Windows, it disables LF -> CRLF translation. +func SetRawTerminalOutput(fd uintptr) (*State, error) { + return nil, nil +} + +func handleInterrupt(fd uintptr, state *State) { + sigchan := make(chan os.Signal, 1) + signal.Notify(sigchan, os.Interrupt) + go func() { + for range sigchan { + // quit cleanly and the new terminal item is on a new line + fmt.Println() + signal.Stop(sigchan) + close(sigchan) + RestoreTerminal(fd, state) + os.Exit(1) + } + }() +} diff --git a/vendor/github.com/moby/term/term_windows.go b/vendor/github.com/moby/term/term_windows.go new file mode 100644 index 000000000..2e512759e --- /dev/null +++ b/vendor/github.com/moby/term/term_windows.go @@ -0,0 +1,228 @@ +package term + +import ( + "io" + "os" + "os/signal" + + windowsconsole "github.com/moby/term/windows" + "golang.org/x/sys/windows" +) + +// State holds the console mode for the terminal. +type State struct { + mode uint32 +} + +// Winsize is used for window size. +type Winsize struct { + Height uint16 + Width uint16 +} + +// vtInputSupported is true if winterm.ENABLE_VIRTUAL_TERMINAL_INPUT is supported by the console +var vtInputSupported bool + +// StdStreams returns the standard streams (stdin, stdout, stderr). +func StdStreams() (stdIn io.ReadCloser, stdOut, stdErr io.Writer) { + // Turn on VT handling on all std handles, if possible. This might + // fail, in which case we will fall back to terminal emulation. + var ( + emulateStdin, emulateStdout, emulateStderr bool + + mode uint32 + ) + + fd := windows.Handle(os.Stdin.Fd()) + if err := windows.GetConsoleMode(fd, &mode); err == nil { + // Validate that winterm.ENABLE_VIRTUAL_TERMINAL_INPUT is supported, but do not set it. + if err = windows.SetConsoleMode(fd, mode|windows.ENABLE_VIRTUAL_TERMINAL_INPUT); err != nil { + emulateStdin = true + } else { + vtInputSupported = true + } + // Unconditionally set the console mode back even on failure because SetConsoleMode + // remembers invalid bits on input handles. + _ = windows.SetConsoleMode(fd, mode) + } + + fd = windows.Handle(os.Stdout.Fd()) + if err := windows.GetConsoleMode(fd, &mode); err == nil { + // Validate winterm.DISABLE_NEWLINE_AUTO_RETURN is supported, but do not set it. + if err = windows.SetConsoleMode(fd, mode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING|windows.DISABLE_NEWLINE_AUTO_RETURN); err != nil { + emulateStdout = true + } else { + _ = windows.SetConsoleMode(fd, mode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) + } + } + + fd = windows.Handle(os.Stderr.Fd()) + if err := windows.GetConsoleMode(fd, &mode); err == nil { + // Validate winterm.DISABLE_NEWLINE_AUTO_RETURN is supported, but do not set it. + if err = windows.SetConsoleMode(fd, mode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING|windows.DISABLE_NEWLINE_AUTO_RETURN); err != nil { + emulateStderr = true + } else { + _ = windows.SetConsoleMode(fd, mode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) + } + } + + // Temporarily use STD_INPUT_HANDLE, STD_OUTPUT_HANDLE and + // STD_ERROR_HANDLE from syscall rather than x/sys/windows as long as + // go-ansiterm hasn't switch to x/sys/windows. + // TODO: switch back to x/sys/windows once go-ansiterm has switched + if emulateStdin { + stdIn = windowsconsole.NewAnsiReader(windows.STD_INPUT_HANDLE) + } else { + stdIn = os.Stdin + } + + if emulateStdout { + stdOut = windowsconsole.NewAnsiWriter(windows.STD_OUTPUT_HANDLE) + } else { + stdOut = os.Stdout + } + + if emulateStderr { + stdErr = windowsconsole.NewAnsiWriter(windows.STD_ERROR_HANDLE) + } else { + stdErr = os.Stderr + } + + return +} + +// GetFdInfo returns the file descriptor for an os.File and indicates whether the file represents a terminal. +func GetFdInfo(in interface{}) (uintptr, bool) { + return windowsconsole.GetHandleInfo(in) +} + +// GetWinsize returns the window size based on the specified file descriptor. +func GetWinsize(fd uintptr) (*Winsize, error) { + var info windows.ConsoleScreenBufferInfo + if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil { + return nil, err + } + + winsize := &Winsize{ + Width: uint16(info.Window.Right - info.Window.Left + 1), + Height: uint16(info.Window.Bottom - info.Window.Top + 1), + } + + return winsize, nil +} + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal(fd uintptr) bool { + var mode uint32 + err := windows.GetConsoleMode(windows.Handle(fd), &mode) + return err == nil +} + +// RestoreTerminal restores the terminal connected to the given file descriptor +// to a previous state. +func RestoreTerminal(fd uintptr, state *State) error { + return windows.SetConsoleMode(windows.Handle(fd), state.mode) +} + +// SaveState saves the state of the terminal connected to the given file descriptor. +func SaveState(fd uintptr) (*State, error) { + var mode uint32 + + if err := windows.GetConsoleMode(windows.Handle(fd), &mode); err != nil { + return nil, err + } + + return &State{mode: mode}, nil +} + +// DisableEcho disables echo for the terminal connected to the given file descriptor. +// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683462(v=vs.85).aspx +func DisableEcho(fd uintptr, state *State) error { + mode := state.mode + mode &^= windows.ENABLE_ECHO_INPUT + mode |= windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_LINE_INPUT + err := windows.SetConsoleMode(windows.Handle(fd), mode) + if err != nil { + return err + } + + // Register an interrupt handler to catch and restore prior state + restoreAtInterrupt(fd, state) + return nil +} + +// SetRawTerminal puts the terminal connected to the given file descriptor into +// raw mode and returns the previous state. On UNIX, this puts both the input +// and output into raw mode. On Windows, it only puts the input into raw mode. +func SetRawTerminal(fd uintptr) (*State, error) { + state, err := MakeRaw(fd) + if err != nil { + return nil, err + } + + // Register an interrupt handler to catch and restore prior state + restoreAtInterrupt(fd, state) + return state, err +} + +// SetRawTerminalOutput puts the output of terminal connected to the given file +// descriptor into raw mode. On UNIX, this does nothing and returns nil for the +// state. On Windows, it disables LF -> CRLF translation. +func SetRawTerminalOutput(fd uintptr) (*State, error) { + state, err := SaveState(fd) + if err != nil { + return nil, err + } + + // Ignore failures, since winterm.DISABLE_NEWLINE_AUTO_RETURN might not be supported on this + // version of Windows. + _ = windows.SetConsoleMode(windows.Handle(fd), state.mode|windows.DISABLE_NEWLINE_AUTO_RETURN) + return state, err +} + +// MakeRaw puts the terminal (Windows Console) connected to the given file descriptor into raw +// mode and returns the previous state of the terminal so that it can be restored. +func MakeRaw(fd uintptr) (*State, error) { + state, err := SaveState(fd) + if err != nil { + return nil, err + } + + mode := state.mode + + // See + // -- https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx + // -- https://msdn.microsoft.com/en-us/library/windows/desktop/ms683462(v=vs.85).aspx + + // Disable these modes + mode &^= windows.ENABLE_ECHO_INPUT + mode &^= windows.ENABLE_LINE_INPUT + mode &^= windows.ENABLE_MOUSE_INPUT + mode &^= windows.ENABLE_WINDOW_INPUT + mode &^= windows.ENABLE_PROCESSED_INPUT + + // Enable these modes + mode |= windows.ENABLE_EXTENDED_FLAGS + mode |= windows.ENABLE_INSERT_MODE + mode |= windows.ENABLE_QUICK_EDIT_MODE + if vtInputSupported { + mode |= windows.ENABLE_VIRTUAL_TERMINAL_INPUT + } + + err = windows.SetConsoleMode(windows.Handle(fd), mode) + if err != nil { + return nil, err + } + return state, nil +} + +func restoreAtInterrupt(fd uintptr, state *State) { + sigchan := make(chan os.Signal, 1) + signal.Notify(sigchan, os.Interrupt) + + go func() { + _ = <-sigchan + _ = RestoreTerminal(fd, state) + os.Exit(0) + }() +} diff --git a/vendor/github.com/moby/term/termios.go b/vendor/github.com/moby/term/termios.go new file mode 100644 index 000000000..0f028e227 --- /dev/null +++ b/vendor/github.com/moby/term/termios.go @@ -0,0 +1,35 @@ +// +build !windows + +package term + +import ( + "golang.org/x/sys/unix" +) + +// Termios is the Unix API for terminal I/O. +type Termios = unix.Termios + +// MakeRaw puts the terminal connected to the given file descriptor into raw +// mode and returns the previous state of the terminal so that it can be +// restored. +func MakeRaw(fd uintptr) (*State, error) { + termios, err := tcget(fd) + if err != nil { + return nil, err + } + + oldState := State{termios: *termios} + + termios.Iflag &^= (unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON) + termios.Oflag &^= unix.OPOST + termios.Lflag &^= (unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN) + termios.Cflag &^= (unix.CSIZE | unix.PARENB) + termios.Cflag |= unix.CS8 + termios.Cc[unix.VMIN] = 1 + termios.Cc[unix.VTIME] = 0 + + if err := tcset(fd, termios); err != nil { + return nil, err + } + return &oldState, nil +} diff --git a/vendor/github.com/moby/term/termios_bsd.go b/vendor/github.com/moby/term/termios_bsd.go new file mode 100644 index 000000000..922dd4baa --- /dev/null +++ b/vendor/github.com/moby/term/termios_bsd.go @@ -0,0 +1,12 @@ +// +build darwin freebsd openbsd netbsd + +package term + +import ( + "golang.org/x/sys/unix" +) + +const ( + getTermios = unix.TIOCGETA + setTermios = unix.TIOCSETA +) diff --git a/vendor/github.com/moby/term/termios_nonbsd.go b/vendor/github.com/moby/term/termios_nonbsd.go new file mode 100644 index 000000000..038fd61ba --- /dev/null +++ b/vendor/github.com/moby/term/termios_nonbsd.go @@ -0,0 +1,12 @@ +//+build !darwin,!freebsd,!netbsd,!openbsd,!windows + +package term + +import ( + "golang.org/x/sys/unix" +) + +const ( + getTermios = unix.TCGETS + setTermios = unix.TCSETS +) diff --git a/vendor/github.com/moby/term/windows/ansi_reader.go b/vendor/github.com/moby/term/windows/ansi_reader.go new file mode 100644 index 000000000..155251521 --- /dev/null +++ b/vendor/github.com/moby/term/windows/ansi_reader.go @@ -0,0 +1,252 @@ +// +build windows + +package windowsconsole + +import ( + "bytes" + "errors" + "fmt" + "io" + "os" + "strings" + "unsafe" + + ansiterm "github.com/Azure/go-ansiterm" + "github.com/Azure/go-ansiterm/winterm" +) + +const ( + escapeSequence = ansiterm.KEY_ESC_CSI +) + +// ansiReader wraps a standard input file (e.g., os.Stdin) providing ANSI sequence translation. +type ansiReader struct { + file *os.File + fd uintptr + buffer []byte + cbBuffer int + command []byte +} + +// NewAnsiReader returns an io.ReadCloser that provides VT100 terminal emulation on top of a +// Windows console input handle. +func NewAnsiReader(nFile int) io.ReadCloser { + file, fd := winterm.GetStdFile(nFile) + return &ansiReader{ + file: file, + fd: fd, + command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH), + buffer: make([]byte, 0), + } +} + +// Close closes the wrapped file. +func (ar *ansiReader) Close() (err error) { + return ar.file.Close() +} + +// Fd returns the file descriptor of the wrapped file. +func (ar *ansiReader) Fd() uintptr { + return ar.fd +} + +// Read reads up to len(p) bytes of translated input events into p. +func (ar *ansiReader) Read(p []byte) (int, error) { + if len(p) == 0 { + return 0, nil + } + + // Previously read bytes exist, read as much as we can and return + if len(ar.buffer) > 0 { + originalLength := len(ar.buffer) + copiedLength := copy(p, ar.buffer) + + if copiedLength == originalLength { + ar.buffer = make([]byte, 0, len(p)) + } else { + ar.buffer = ar.buffer[copiedLength:] + } + + return copiedLength, nil + } + + // Read and translate key events + events, err := readInputEvents(ar, len(p)) + if err != nil { + return 0, err + } else if len(events) == 0 { + return 0, nil + } + + keyBytes := translateKeyEvents(events, []byte(escapeSequence)) + + // Save excess bytes and right-size keyBytes + if len(keyBytes) > len(p) { + ar.buffer = keyBytes[len(p):] + keyBytes = keyBytes[:len(p)] + } else if len(keyBytes) == 0 { + return 0, nil + } + + copiedLength := copy(p, keyBytes) + if copiedLength != len(keyBytes) { + return 0, errors.New("unexpected copy length encountered") + } + + return copiedLength, nil +} + +// readInputEvents polls until at least one event is available. +func readInputEvents(ar *ansiReader, maxBytes int) ([]winterm.INPUT_RECORD, error) { + // Determine the maximum number of records to retrieve + // -- Cast around the type system to obtain the size of a single INPUT_RECORD. + // unsafe.Sizeof requires an expression vs. a type-reference; the casting + // tricks the type system into believing it has such an expression. + recordSize := int(unsafe.Sizeof(*((*winterm.INPUT_RECORD)(unsafe.Pointer(&maxBytes))))) + countRecords := maxBytes / recordSize + if countRecords > ansiterm.MAX_INPUT_EVENTS { + countRecords = ansiterm.MAX_INPUT_EVENTS + } else if countRecords == 0 { + countRecords = 1 + } + + // Wait for and read input events + events := make([]winterm.INPUT_RECORD, countRecords) + nEvents := uint32(0) + eventsExist, err := winterm.WaitForSingleObject(ar.fd, winterm.WAIT_INFINITE) + if err != nil { + return nil, err + } + + if eventsExist { + err = winterm.ReadConsoleInput(ar.fd, events, &nEvents) + if err != nil { + return nil, err + } + } + + // Return a slice restricted to the number of returned records + return events[:nEvents], nil +} + +// KeyEvent Translation Helpers + +var arrowKeyMapPrefix = map[uint16]string{ + winterm.VK_UP: "%s%sA", + winterm.VK_DOWN: "%s%sB", + winterm.VK_RIGHT: "%s%sC", + winterm.VK_LEFT: "%s%sD", +} + +var keyMapPrefix = map[uint16]string{ + winterm.VK_UP: "\x1B[%sA", + winterm.VK_DOWN: "\x1B[%sB", + winterm.VK_RIGHT: "\x1B[%sC", + winterm.VK_LEFT: "\x1B[%sD", + winterm.VK_HOME: "\x1B[1%s~", // showkey shows ^[[1 + winterm.VK_END: "\x1B[4%s~", // showkey shows ^[[4 + winterm.VK_INSERT: "\x1B[2%s~", + winterm.VK_DELETE: "\x1B[3%s~", + winterm.VK_PRIOR: "\x1B[5%s~", + winterm.VK_NEXT: "\x1B[6%s~", + winterm.VK_F1: "", + winterm.VK_F2: "", + winterm.VK_F3: "\x1B[13%s~", + winterm.VK_F4: "\x1B[14%s~", + winterm.VK_F5: "\x1B[15%s~", + winterm.VK_F6: "\x1B[17%s~", + winterm.VK_F7: "\x1B[18%s~", + winterm.VK_F8: "\x1B[19%s~", + winterm.VK_F9: "\x1B[20%s~", + winterm.VK_F10: "\x1B[21%s~", + winterm.VK_F11: "\x1B[23%s~", + winterm.VK_F12: "\x1B[24%s~", +} + +// translateKeyEvents converts the input events into the appropriate ANSI string. +func translateKeyEvents(events []winterm.INPUT_RECORD, escapeSequence []byte) []byte { + var buffer bytes.Buffer + for _, event := range events { + if event.EventType == winterm.KEY_EVENT && event.KeyEvent.KeyDown != 0 { + buffer.WriteString(keyToString(&event.KeyEvent, escapeSequence)) + } + } + + return buffer.Bytes() +} + +// keyToString maps the given input event record to the corresponding string. +func keyToString(keyEvent *winterm.KEY_EVENT_RECORD, escapeSequence []byte) string { + if keyEvent.UnicodeChar == 0 { + return formatVirtualKey(keyEvent.VirtualKeyCode, keyEvent.ControlKeyState, escapeSequence) + } + + _, alt, control := getControlKeys(keyEvent.ControlKeyState) + if control { + // TODO(azlinux): Implement following control sequences + // <Ctrl>-D Signals the end of input from the keyboard; also exits current shell. + // <Ctrl>-H Deletes the first character to the left of the cursor. Also called the ERASE key. + // <Ctrl>-Q Restarts printing after it has been stopped with <Ctrl>-s. + // <Ctrl>-S Suspends printing on the screen (does not stop the program). + // <Ctrl>-U Deletes all characters on the current line. Also called the KILL key. + // <Ctrl>-E Quits current command and creates a core + + } + + // <Alt>+Key generates ESC N Key + if !control && alt { + return ansiterm.KEY_ESC_N + strings.ToLower(string(keyEvent.UnicodeChar)) + } + + return string(keyEvent.UnicodeChar) +} + +// formatVirtualKey converts a virtual key (e.g., up arrow) into the appropriate ANSI string. +func formatVirtualKey(key uint16, controlState uint32, escapeSequence []byte) string { + shift, alt, control := getControlKeys(controlState) + modifier := getControlKeysModifier(shift, alt, control) + + if format, ok := arrowKeyMapPrefix[key]; ok { + return fmt.Sprintf(format, escapeSequence, modifier) + } + + if format, ok := keyMapPrefix[key]; ok { + return fmt.Sprintf(format, modifier) + } + + return "" +} + +// getControlKeys extracts the shift, alt, and ctrl key states. +func getControlKeys(controlState uint32) (shift, alt, control bool) { + shift = 0 != (controlState & winterm.SHIFT_PRESSED) + alt = 0 != (controlState & (winterm.LEFT_ALT_PRESSED | winterm.RIGHT_ALT_PRESSED)) + control = 0 != (controlState & (winterm.LEFT_CTRL_PRESSED | winterm.RIGHT_CTRL_PRESSED)) + return shift, alt, control +} + +// getControlKeysModifier returns the ANSI modifier for the given combination of control keys. +func getControlKeysModifier(shift, alt, control bool) string { + if shift && alt && control { + return ansiterm.KEY_CONTROL_PARAM_8 + } + if alt && control { + return ansiterm.KEY_CONTROL_PARAM_7 + } + if shift && control { + return ansiterm.KEY_CONTROL_PARAM_6 + } + if control { + return ansiterm.KEY_CONTROL_PARAM_5 + } + if shift && alt { + return ansiterm.KEY_CONTROL_PARAM_4 + } + if alt { + return ansiterm.KEY_CONTROL_PARAM_3 + } + if shift { + return ansiterm.KEY_CONTROL_PARAM_2 + } + return "" +} diff --git a/vendor/github.com/moby/term/windows/ansi_writer.go b/vendor/github.com/moby/term/windows/ansi_writer.go new file mode 100644 index 000000000..ccb5ef077 --- /dev/null +++ b/vendor/github.com/moby/term/windows/ansi_writer.go @@ -0,0 +1,56 @@ +// +build windows + +package windowsconsole + +import ( + "io" + "os" + + ansiterm "github.com/Azure/go-ansiterm" + "github.com/Azure/go-ansiterm/winterm" +) + +// ansiWriter wraps a standard output file (e.g., os.Stdout) providing ANSI sequence translation. +type ansiWriter struct { + file *os.File + fd uintptr + infoReset *winterm.CONSOLE_SCREEN_BUFFER_INFO + command []byte + escapeSequence []byte + inAnsiSequence bool + parser *ansiterm.AnsiParser +} + +// NewAnsiWriter returns an io.Writer that provides VT100 terminal emulation on top of a +// Windows console output handle. +func NewAnsiWriter(nFile int) io.Writer { + file, fd := winterm.GetStdFile(nFile) + info, err := winterm.GetConsoleScreenBufferInfo(fd) + if err != nil { + return nil + } + + parser := ansiterm.CreateParser("Ground", winterm.CreateWinEventHandler(fd, file)) + + return &ansiWriter{ + file: file, + fd: fd, + infoReset: info, + command: make([]byte, 0, ansiterm.ANSI_MAX_CMD_LENGTH), + escapeSequence: []byte(ansiterm.KEY_ESC_CSI), + parser: parser, + } +} + +func (aw *ansiWriter) Fd() uintptr { + return aw.fd +} + +// Write writes len(p) bytes from p to the underlying data stream. +func (aw *ansiWriter) Write(p []byte) (total int, err error) { + if len(p) == 0 { + return 0, nil + } + + return aw.parser.Parse(p) +} diff --git a/vendor/github.com/moby/term/windows/console.go b/vendor/github.com/moby/term/windows/console.go new file mode 100644 index 000000000..01fdc0f2a --- /dev/null +++ b/vendor/github.com/moby/term/windows/console.go @@ -0,0 +1,39 @@ +// +build windows + +package windowsconsole + +import ( + "os" + + "golang.org/x/sys/windows" +) + +// GetHandleInfo returns file descriptor and bool indicating whether the file is a console. +func GetHandleInfo(in interface{}) (uintptr, bool) { + switch t := in.(type) { + case *ansiReader: + return t.Fd(), true + case *ansiWriter: + return t.Fd(), true + } + + var inFd uintptr + var isTerminal bool + + if file, ok := in.(*os.File); ok { + inFd = file.Fd() + isTerminal = isConsole(inFd) + } + return inFd, isTerminal +} + +// IsConsole returns true if the given file descriptor is a Windows Console. +// The code assumes that GetConsoleMode will return an error for file descriptors that are not a console. +// Deprecated: use golang.org/x/sys/windows.GetConsoleMode() or golang.org/x/crypto/ssh/terminal.IsTerminal() +var IsConsole = isConsole + +func isConsole(fd uintptr) bool { + var mode uint32 + err := windows.GetConsoleMode(windows.Handle(fd), &mode) + return err == nil +} diff --git a/vendor/github.com/moby/term/windows/doc.go b/vendor/github.com/moby/term/windows/doc.go new file mode 100644 index 000000000..54265fffa --- /dev/null +++ b/vendor/github.com/moby/term/windows/doc.go @@ -0,0 +1,5 @@ +// These files implement ANSI-aware input and output streams for use by the Docker Windows client. +// When asked for the set of standard streams (e.g., stdin, stdout, stderr), the code will create +// and return pseudo-streams that convert ANSI sequences to / from Windows Console API calls. + +package windowsconsole diff --git a/vendor/github.com/moby/term/winsize.go b/vendor/github.com/moby/term/winsize.go new file mode 100644 index 000000000..1ef98d599 --- /dev/null +++ b/vendor/github.com/moby/term/winsize.go @@ -0,0 +1,20 @@ +// +build !windows + +package term + +import ( + "golang.org/x/sys/unix" +) + +// GetWinsize returns the window size based on the specified file descriptor. +func GetWinsize(fd uintptr) (*Winsize, error) { + uws, err := unix.IoctlGetWinsize(int(fd), unix.TIOCGWINSZ) + ws := &Winsize{Height: uws.Row, Width: uws.Col, x: uws.Xpixel, y: uws.Ypixel} + return ws, err +} + +// SetWinsize tries to set the specified window size for the specified file descriptor. +func SetWinsize(fd uintptr, ws *Winsize) error { + uws := &unix.Winsize{Row: ws.Height, Col: ws.Width, Xpixel: ws.x, Ypixel: ws.y} + return unix.IoctlSetWinsize(int(fd), unix.TIOCSWINSZ, uws) +} |