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c710b851c7
Fixes #270 Signed-off-by: mhartenbower <matt.hartenbower@gmail.com>
46 lines
1.7 KiB
Go
46 lines
1.7 KiB
Go
// Copyright 2017 The Prometheus 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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package flag
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import (
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"github.com/prometheus/common/promlog"
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kingpin "gopkg.in/alecthomas/kingpin.v2"
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)
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// LevelFlagName is the canonical flag name to configure the allowed log level
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// within Prometheus projects.
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const LevelFlagName = "log.level"
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// LevelFlagHelp is the help description for the log.level flag.
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const LevelFlagHelp = "Only log messages with the given severity or above. One of: [debug, info, warn, error]"
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// FormatFlagName is the canonical flag name to configure the log format
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// within Prometheus projects.
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const FormatFlagName = "log.format"
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// FormatFlagHelp is the help description for the log.format flag.
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const FormatFlagHelp = "Output format of log messages. One of: [logfmt, json]"
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// AddFlags adds the flags used by this package to the Kingpin application.
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// To use the default Kingpin application, call AddFlags(kingpin.CommandLine)
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func AddFlags(a *kingpin.Application, config *promlog.Config) {
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config.Level = &promlog.AllowedLevel{}
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a.Flag(LevelFlagName, LevelFlagHelp).
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Default("info").SetValue(config.Level)
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config.Format = &promlog.AllowedFormat{}
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a.Flag(FormatFlagName, FormatFlagHelp).
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Default("logfmt").SetValue(config.Format)
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}
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