mirror of https://github.com/perkeep/perkeep.git
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
/*
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Copyright 2015 The Camlistore Authors
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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 env detects what sort of environment Camlistore is running in.
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package env
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import (
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"os"
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"strconv"
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"sync"
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"google.golang.org/cloud/compute/metadata"
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)
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// IsDebug reports whether this is a debug environment.
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func IsDebug() bool {
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return isDebug
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}
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// DebugUploads reports whether this is a debug environment for uploads.
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func DebugUploads() bool {
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return isDebugUploads
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}
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// IsDev reports whether this is a development server environment (devcam server).
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func IsDev() bool {
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return isDev
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}
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// OsGCE reports whether this process is running in a Google Compute
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// Engine (GCE) environment. This only returns true if the
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// "camlistore-config-dir" instance metadata value is defined.
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// Instances running in custom configs on GCE will be unaffected.
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func OnGCE() bool {
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gceOnce.Do(detectGCE)
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return isGCE
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}
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var (
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gceOnce sync.Once
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isGCE bool
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)
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func detectGCE() {
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if !metadata.OnGCE() {
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return
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}
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v, _ := metadata.InstanceAttributeValue("camlistore-config-dir")
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isGCE = v != ""
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}
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var (
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isDev = os.Getenv("CAMLI_DEV_CAMLI_ROOT") != ""
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isDebug, _ = strconv.ParseBool(os.Getenv("CAMLI_DEBUG"))
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isDebugUploads, _ = strconv.ParseBool(os.Getenv("CAMLI_DEBUG_UPLOADS"))
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)
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