Add node provider interfaace (#526)
This starts the work of having a `NodeProvider` which is responsible for providing node details. It splits the responsibilities of node management off to a new controller. The primary change here is to add the framework pieces for node management and move the VK CLI to use this new controller. It also adds support for node leases where available. This can be enabled via the command line (disabled by default), but may fall back if we find that leaess aren't supported on the cluster.
This commit is contained in:
Brian Goff
277
vendor/github.com/google/go-cmp/cmp/internal/value/format.go
generated
vendored
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277
vendor/github.com/google/go-cmp/cmp/internal/value/format.go
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@@ -0,0 +1,277 @@
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// Copyright 2017, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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// Package value provides functionality for reflect.Value types.
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package value
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import (
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"unicode"
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)
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var stringerIface = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
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// Format formats the value v as a string.
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//
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// This is similar to fmt.Sprintf("%+v", v) except this:
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// * Prints the type unless it can be elided
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// * Avoids printing struct fields that are zero
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// * Prints a nil-slice as being nil, not empty
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// * Prints map entries in deterministic order
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func Format(v reflect.Value, conf FormatConfig) string {
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conf.printType = true
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conf.followPointers = true
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conf.realPointers = true
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return formatAny(v, conf, nil)
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}
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type FormatConfig struct {
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UseStringer bool // Should the String method be used if available?
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printType bool // Should we print the type before the value?
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PrintPrimitiveType bool // Should we print the type of primitives?
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followPointers bool // Should we recursively follow pointers?
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realPointers bool // Should we print the real address of pointers?
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}
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func formatAny(v reflect.Value, conf FormatConfig, visited map[uintptr]bool) string {
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// TODO: Should this be a multi-line printout in certain situations?
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if !v.IsValid() {
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return "<non-existent>"
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}
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if conf.UseStringer && v.Type().Implements(stringerIface) && v.CanInterface() {
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if (v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface) && v.IsNil() {
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return "<nil>"
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}
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const stringerPrefix = "s" // Indicates that the String method was used
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s := v.Interface().(fmt.Stringer).String()
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return stringerPrefix + formatString(s)
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}
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switch v.Kind() {
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case reflect.Bool:
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return formatPrimitive(v.Type(), v.Bool(), conf)
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return formatPrimitive(v.Type(), v.Int(), conf)
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
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if v.Type().PkgPath() == "" || v.Kind() == reflect.Uintptr {
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// Unnamed uints are usually bytes or words, so use hexadecimal.
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return formatPrimitive(v.Type(), formatHex(v.Uint()), conf)
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}
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return formatPrimitive(v.Type(), v.Uint(), conf)
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case reflect.Float32, reflect.Float64:
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return formatPrimitive(v.Type(), v.Float(), conf)
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case reflect.Complex64, reflect.Complex128:
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return formatPrimitive(v.Type(), v.Complex(), conf)
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case reflect.String:
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return formatPrimitive(v.Type(), formatString(v.String()), conf)
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case reflect.UnsafePointer, reflect.Chan, reflect.Func:
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return formatPointer(v, conf)
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case reflect.Ptr:
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if v.IsNil() {
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if conf.printType {
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return fmt.Sprintf("(%v)(nil)", v.Type())
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}
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return "<nil>"
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}
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if visited[v.Pointer()] || !conf.followPointers {
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return formatPointer(v, conf)
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}
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visited = insertPointer(visited, v.Pointer())
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return "&" + formatAny(v.Elem(), conf, visited)
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case reflect.Interface:
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if v.IsNil() {
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if conf.printType {
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return fmt.Sprintf("%v(nil)", v.Type())
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}
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return "<nil>"
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}
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return formatAny(v.Elem(), conf, visited)
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case reflect.Slice:
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if v.IsNil() {
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if conf.printType {
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return fmt.Sprintf("%v(nil)", v.Type())
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}
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return "<nil>"
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}
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if visited[v.Pointer()] {
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return formatPointer(v, conf)
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}
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visited = insertPointer(visited, v.Pointer())
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fallthrough
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case reflect.Array:
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var ss []string
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subConf := conf
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subConf.printType = v.Type().Elem().Kind() == reflect.Interface
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for i := 0; i < v.Len(); i++ {
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s := formatAny(v.Index(i), subConf, visited)
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ss = append(ss, s)
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}
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s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
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if conf.printType {
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return v.Type().String() + s
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}
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return s
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case reflect.Map:
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if v.IsNil() {
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if conf.printType {
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return fmt.Sprintf("%v(nil)", v.Type())
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}
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return "<nil>"
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}
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if visited[v.Pointer()] {
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return formatPointer(v, conf)
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}
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visited = insertPointer(visited, v.Pointer())
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var ss []string
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keyConf, valConf := conf, conf
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keyConf.printType = v.Type().Key().Kind() == reflect.Interface
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keyConf.followPointers = false
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valConf.printType = v.Type().Elem().Kind() == reflect.Interface
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for _, k := range SortKeys(v.MapKeys()) {
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sk := formatAny(k, keyConf, visited)
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sv := formatAny(v.MapIndex(k), valConf, visited)
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ss = append(ss, fmt.Sprintf("%s: %s", sk, sv))
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}
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s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
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if conf.printType {
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return v.Type().String() + s
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}
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return s
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case reflect.Struct:
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var ss []string
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subConf := conf
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subConf.printType = true
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for i := 0; i < v.NumField(); i++ {
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vv := v.Field(i)
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if isZero(vv) {
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continue // Elide zero value fields
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}
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name := v.Type().Field(i).Name
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subConf.UseStringer = conf.UseStringer
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s := formatAny(vv, subConf, visited)
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ss = append(ss, fmt.Sprintf("%s: %s", name, s))
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}
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s := fmt.Sprintf("{%s}", strings.Join(ss, ", "))
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if conf.printType {
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return v.Type().String() + s
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}
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return s
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default:
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panic(fmt.Sprintf("%v kind not handled", v.Kind()))
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}
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}
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func formatString(s string) string {
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// Use quoted string if it the same length as a raw string literal.
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// Otherwise, attempt to use the raw string form.
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qs := strconv.Quote(s)
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if len(qs) == 1+len(s)+1 {
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return qs
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}
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// Disallow newlines to ensure output is a single line.
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// Only allow printable runes for readability purposes.
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rawInvalid := func(r rune) bool {
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return r == '`' || r == '\n' || !unicode.IsPrint(r)
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}
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if strings.IndexFunc(s, rawInvalid) < 0 {
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return "`" + s + "`"
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}
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return qs
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}
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func formatPrimitive(t reflect.Type, v interface{}, conf FormatConfig) string {
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if conf.printType && (conf.PrintPrimitiveType || t.PkgPath() != "") {
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return fmt.Sprintf("%v(%v)", t, v)
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}
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return fmt.Sprintf("%v", v)
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}
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func formatPointer(v reflect.Value, conf FormatConfig) string {
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p := v.Pointer()
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if !conf.realPointers {
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p = 0 // For deterministic printing purposes
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}
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s := formatHex(uint64(p))
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if conf.printType {
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return fmt.Sprintf("(%v)(%s)", v.Type(), s)
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}
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return s
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}
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func formatHex(u uint64) string {
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var f string
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switch {
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case u <= 0xff:
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f = "0x%02x"
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case u <= 0xffff:
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f = "0x%04x"
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case u <= 0xffffff:
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f = "0x%06x"
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case u <= 0xffffffff:
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f = "0x%08x"
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case u <= 0xffffffffff:
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f = "0x%010x"
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case u <= 0xffffffffffff:
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f = "0x%012x"
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case u <= 0xffffffffffffff:
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f = "0x%014x"
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case u <= 0xffffffffffffffff:
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f = "0x%016x"
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}
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return fmt.Sprintf(f, u)
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}
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// insertPointer insert p into m, allocating m if necessary.
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func insertPointer(m map[uintptr]bool, p uintptr) map[uintptr]bool {
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if m == nil {
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m = make(map[uintptr]bool)
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}
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m[p] = true
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return m
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}
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// isZero reports whether v is the zero value.
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// This does not rely on Interface and so can be used on unexported fields.
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func isZero(v reflect.Value) bool {
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switch v.Kind() {
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case reflect.Bool:
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return v.Bool() == false
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return v.Int() == 0
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
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return v.Uint() == 0
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case reflect.Float32, reflect.Float64:
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return v.Float() == 0
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case reflect.Complex64, reflect.Complex128:
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return v.Complex() == 0
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case reflect.String:
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return v.String() == ""
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case reflect.UnsafePointer:
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return v.Pointer() == 0
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case reflect.Chan, reflect.Func, reflect.Interface, reflect.Ptr, reflect.Map, reflect.Slice:
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return v.IsNil()
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case reflect.Array:
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for i := 0; i < v.Len(); i++ {
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if !isZero(v.Index(i)) {
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return false
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}
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}
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return true
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case reflect.Struct:
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for i := 0; i < v.NumField(); i++ {
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if !isZero(v.Field(i)) {
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return false
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}
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}
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return true
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}
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return false
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}
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111
vendor/github.com/google/go-cmp/cmp/internal/value/sort.go
generated
vendored
Normal file
111
vendor/github.com/google/go-cmp/cmp/internal/value/sort.go
generated
vendored
Normal file
@@ -0,0 +1,111 @@
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// Copyright 2017, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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package value
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import (
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"fmt"
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"math"
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"reflect"
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"sort"
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)
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// SortKeys sorts a list of map keys, deduplicating keys if necessary.
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// The type of each value must be comparable.
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func SortKeys(vs []reflect.Value) []reflect.Value {
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if len(vs) == 0 {
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return vs
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}
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// Sort the map keys.
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sort.Sort(valueSorter(vs))
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// Deduplicate keys (fails for NaNs).
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vs2 := vs[:1]
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for _, v := range vs[1:] {
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if isLess(vs2[len(vs2)-1], v) {
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vs2 = append(vs2, v)
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}
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}
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return vs2
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}
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// TODO: Use sort.Slice once Google AppEngine is on Go1.8 or above.
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type valueSorter []reflect.Value
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func (vs valueSorter) Len() int { return len(vs) }
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func (vs valueSorter) Less(i, j int) bool { return isLess(vs[i], vs[j]) }
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func (vs valueSorter) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
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// isLess is a generic function for sorting arbitrary map keys.
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// The inputs must be of the same type and must be comparable.
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func isLess(x, y reflect.Value) bool {
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switch x.Type().Kind() {
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case reflect.Bool:
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return !x.Bool() && y.Bool()
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return x.Int() < y.Int()
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
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return x.Uint() < y.Uint()
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case reflect.Float32, reflect.Float64:
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fx, fy := x.Float(), y.Float()
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return fx < fy || math.IsNaN(fx) && !math.IsNaN(fy)
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case reflect.Complex64, reflect.Complex128:
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cx, cy := x.Complex(), y.Complex()
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rx, ix, ry, iy := real(cx), imag(cx), real(cy), imag(cy)
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if rx == ry || (math.IsNaN(rx) && math.IsNaN(ry)) {
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return ix < iy || math.IsNaN(ix) && !math.IsNaN(iy)
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}
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return rx < ry || math.IsNaN(rx) && !math.IsNaN(ry)
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case reflect.Ptr, reflect.UnsafePointer, reflect.Chan:
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return x.Pointer() < y.Pointer()
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case reflect.String:
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return x.String() < y.String()
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case reflect.Array:
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for i := 0; i < x.Len(); i++ {
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if isLess(x.Index(i), y.Index(i)) {
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return true
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}
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if isLess(y.Index(i), x.Index(i)) {
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return false
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}
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}
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return false
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case reflect.Struct:
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for i := 0; i < x.NumField(); i++ {
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if isLess(x.Field(i), y.Field(i)) {
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return true
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}
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if isLess(y.Field(i), x.Field(i)) {
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return false
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}
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}
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return false
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case reflect.Interface:
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vx, vy := x.Elem(), y.Elem()
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if !vx.IsValid() || !vy.IsValid() {
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return !vx.IsValid() && vy.IsValid()
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}
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tx, ty := vx.Type(), vy.Type()
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if tx == ty {
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return isLess(x.Elem(), y.Elem())
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}
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if tx.Kind() != ty.Kind() {
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return vx.Kind() < vy.Kind()
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}
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if tx.String() != ty.String() {
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return tx.String() < ty.String()
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}
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if tx.PkgPath() != ty.PkgPath() {
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return tx.PkgPath() < ty.PkgPath()
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}
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// This can happen in rare situations, so we fallback to just comparing
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// the unique pointer for a reflect.Type. This guarantees deterministic
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// ordering within a program, but it is obviously not stable.
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return reflect.ValueOf(vx.Type()).Pointer() < reflect.ValueOf(vy.Type()).Pointer()
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default:
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// Must be Func, Map, or Slice; which are not comparable.
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panic(fmt.Sprintf("%T is not comparable", x.Type()))
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}
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}
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Reference in New Issue
Block a user