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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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d5c180e680
It is better developing vmctl tool in VictoriaMetrics repository, so it could be released together with the rest of vmutils tools such as vmalert, vmagent, vmbackup, vmrestore and vmauth.
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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