// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build tools

package tools

// Arrange to vendor the bisect command for use
// by the internal/godebug package test.

// the pre-Go 1.22 ServeMux implementation for backwards compatibility.
// Do not modify this file, it should remain frozen.

import (
	"internal/godebug"
	"net/url"
	"sort"
	"strings"
	"sync"
)

var httpmuxgo121 = godebug.New("httpmuxgo121")

var use121 bool

// Read httpmuxgo121 once at startup, since dealing with changes to it during
// program execution is too complex and error-prone.

  traceSampling: 1.0
  image: pilot
  env:
    GODEBUG: gctrace=1
global:
  hub: docker.io/istio
  istioNamespace: istio-system
  tag: 1.2.3
  proxy:
    readinessInitialDelaySeconds: 2
`,
			want: `
hub: docker.io/istio
tag: 1.2.3
components:
   pilot:
     enabled: true
     k8s:
       replicaCount: 1
       env:
       - name: GODEBUG
         value: gctrace=1
       nodeSelector:

cmp stdout go.work.want_print

go work edit -json -go 1.19 -use b -dropuse c -replace 'x.1@v1.4.0 = ../z' -dropreplace x.1 -dropreplace x.1@v1.3.0
cmp stdout go.work.want_json

# go work edit -godebug
cd $WORK/g
cp go.work.start go.work
go work edit -godebug key=value
cmpenv go.work go.work.edit
go work edit -dropgodebug key2
cmpenv go.work go.work.edit
go work edit -dropgodebug key
cmpenv go.work go.work.start

<!-- TODO: Improve the wording. Mention the tlskyber GODEBUG. -->

				systemRoots.systemPool = tc.systemPool
			}
			for _, c := range tc.poolContent {
				systemRoots.AddCert(c)
			}
			if tc.forceFallback {
				t.Setenv("GODEBUG", "x509usefallbackroots=1")
			} else {
				t.Setenv("GODEBUG", "x509usefallbackroots=0")
			}

			fallbackPool := NewCertPool()
			SetFallbackRoots(fallbackPool)

			systemPoolIsFallback := systemRoots == fallbackPool

//     with the GODEBUG=x509ignoreCN=0 in env
//
// It increases the `sha1` counter whenever:
//  1. we get a x509.InsecureAlgorithmError with string `SHA1`
//     which indicates an error caused by an insecure SHA1 signature
//  2. the server certificate in response contains a SHA1WithRSA or ECDSAWithSHA1 signature.
//     This indicates that this binary run with the GODEBUG=x509sha1=1 in env

# Check that standard library packages are cached.
go list -json math # refresh cache
env GODEBUG=gofsystrace=1,gofsystracelog=fsys.log
go list -json math
! grep math/abs.go fsys.log

// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import _ "unsafe"

// used in internal/godebug and syscall
//go:linkname write

// used by cgo
//go:linkname _cgo_panic_internal
//go:linkname cgoAlwaysFalse
//go:linkname cgoUse
//go:linkname cgoCheckPointer
//go:linkname cgoCheckResult

      namespace: istio-control
      k8s:
        env:
          - name: POD_NAME
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: new.path
          - name: GODEBUG
            value: gctrace=111
          - name: NEW_VAR
            value: new_value
        hpaSpec:
          maxReplicas: 333
          scaleTargetRef:
            name: istio-pilot
          metrics: