283d9f7483
pin dependency github.com/beorn7/perks from v1.0.0 to v1.0.1 pin dependency github.com/golang/protobuf from v1.3.3 to v1.4.2 pin denpendency github.com/json-iterator/go from v1.1.8 to v1.1.9 pin dependency github.com/prometheus/common from v0.4.1 to v0.9.1 pin dependency github.com/prometheus/procfs from v0.0.5 to v0.0.11 pin dependency github.com/alecthomas/template from v0.0.0-20160405071501-a0175ee3bccc to v0.0.0-20190718012654-fb15b899a751 pin dependency github.com/alecthomas/units from v0.0.0-20151022065526-2efee857e7cf to v0.0.0-20190717042225-c3de453c63f4 pin dependency github.com/go-kit/kit from v0.8.0 to v0.9.0 pin dependency github.com/go-logfmt/logfmt from v0.3.0 to v0.4.0 Co-Authored-By: Jordan Liggitt <jordan@liggitt.net>
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// Copyright 2019 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 fs
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import (
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"fmt"
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"os"
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"path/filepath"
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)
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const (
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// DefaultProcMountPoint is the common mount point of the proc filesystem.
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DefaultProcMountPoint = "/proc"
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// DefaultSysMountPoint is the common mount point of the sys filesystem.
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DefaultSysMountPoint = "/sys"
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// DefaultConfigfsMountPoint is the common mount point of the configfs
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DefaultConfigfsMountPoint = "/sys/kernel/config"
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)
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// FS represents a pseudo-filesystem, normally /proc or /sys, which provides an
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// interface to kernel data structures.
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type FS string
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// NewFS returns a new FS mounted under the given mountPoint. It will error
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// if the mount point can't be read.
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func NewFS(mountPoint string) (FS, error) {
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info, err := os.Stat(mountPoint)
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if err != nil {
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return "", fmt.Errorf("could not read %s: %s", mountPoint, err)
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}
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if !info.IsDir() {
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return "", fmt.Errorf("mount point %s is not a directory", mountPoint)
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}
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return FS(mountPoint), nil
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}
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// Path appends the given path elements to the filesystem path, adding separators
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// as necessary.
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func (fs FS) Path(p ...string) string {
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return filepath.Join(append([]string{string(fs)}, p...)...)
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}
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