100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
/*
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Copyright (c) 2014-2016 VMware, Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package flags
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import (
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"context"
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"flag"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/vmware/govmomi/vim25/debug"
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)
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type DebugFlag struct {
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common
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enable bool
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}
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var debugFlagKey = flagKey("debug")
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func NewDebugFlag(ctx context.Context) (*DebugFlag, context.Context) {
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if v := ctx.Value(debugFlagKey); v != nil {
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return v.(*DebugFlag), ctx
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}
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v := &DebugFlag{}
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ctx = context.WithValue(ctx, debugFlagKey, v)
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return v, ctx
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}
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func (flag *DebugFlag) Register(ctx context.Context, f *flag.FlagSet) {
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flag.RegisterOnce(func() {
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env := "GOVC_DEBUG"
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enable := false
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switch env := strings.ToLower(os.Getenv(env)); env {
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case "1", "true":
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enable = true
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}
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usage := fmt.Sprintf("Store debug logs [%s]", env)
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f.BoolVar(&flag.enable, "debug", enable, usage)
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})
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}
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func (flag *DebugFlag) Process(ctx context.Context) error {
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if !flag.enable {
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return nil
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}
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return flag.ProcessOnce(func() error {
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// Base path for storing debug logs.
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r := os.Getenv("GOVC_DEBUG_PATH")
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if r == "" {
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r = home
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}
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r = filepath.Join(r, "debug")
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// Path for this particular run.
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run := os.Getenv("GOVC_DEBUG_PATH_RUN")
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if run == "" {
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now := time.Now().Format("2006-01-02T15-04-05.999999999")
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r = filepath.Join(r, now)
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} else {
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// reuse the same path
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r = filepath.Join(r, run)
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_ = os.RemoveAll(r)
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}
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err := os.MkdirAll(r, 0700)
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if err != nil {
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return err
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}
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p := debug.FileProvider{
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Path: r,
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}
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debug.SetProvider(&p)
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return nil
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})
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}
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