mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
148 lines
3.5 KiB
Go
148 lines
3.5 KiB
Go
/**
|
|
# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
**/
|
|
|
|
package csv
|
|
|
|
import (
|
|
"bufio"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
)
|
|
|
|
const (
|
|
// DefaultMountSpecPath is default location of CSV files that define the modifications required to the OCI spec
|
|
DefaultMountSpecPath = "/etc/nvidia-container-runtime/host-files-for-container.d"
|
|
)
|
|
|
|
// DefaultFileList returns the list of CSV files that are used by default.
|
|
func DefaultFileList() []string {
|
|
files := []string{
|
|
"devices.csv",
|
|
"drivers.csv",
|
|
"l4t.csv",
|
|
}
|
|
|
|
var paths []string
|
|
for _, file := range files {
|
|
paths = append(paths, filepath.Join(DefaultMountSpecPath, file))
|
|
}
|
|
|
|
return paths
|
|
}
|
|
|
|
// GetFileList returns the (non-recursive) list of CSV files in the specified
|
|
// folder
|
|
func GetFileList(root string) ([]string, error) {
|
|
contents, err := os.ReadDir(root)
|
|
if err != nil && errors.Is(err, os.ErrNotExist) {
|
|
return nil, nil
|
|
} else if err != nil {
|
|
return nil, fmt.Errorf("failed to read the contents of %v: %v", root, err)
|
|
}
|
|
|
|
var csvFilePaths []string
|
|
for _, c := range contents {
|
|
if c.IsDir() {
|
|
continue
|
|
}
|
|
if c.Name() == ".csv" {
|
|
continue
|
|
}
|
|
ext := strings.ToLower(filepath.Ext(c.Name()))
|
|
if ext != ".csv" {
|
|
continue
|
|
}
|
|
|
|
csvFilePaths = append(csvFilePaths, filepath.Join(root, c.Name()))
|
|
}
|
|
|
|
return csvFilePaths, nil
|
|
}
|
|
|
|
// BaseFilesOnly filters out non-base CSV files from the list of CSV files.
|
|
func BaseFilesOnly(filenames []string) []string {
|
|
filter := map[string]bool{
|
|
"l4t.csv": true,
|
|
"drivers.csv": true,
|
|
"devices.csv": true,
|
|
}
|
|
|
|
var selected []string
|
|
for _, file := range filenames {
|
|
base := filepath.Base(file)
|
|
if filter[base] {
|
|
selected = append(selected, file)
|
|
}
|
|
}
|
|
|
|
return selected
|
|
}
|
|
|
|
// Parser specifies an interface for parsing MountSpecs
|
|
type Parser interface {
|
|
Parse() ([]*MountSpec, error)
|
|
}
|
|
|
|
type csv struct {
|
|
logger logger.Interface
|
|
filename string
|
|
}
|
|
|
|
// NewCSVFileParser creates a new parser for reading MountSpecs from the specified CSV file
|
|
func NewCSVFileParser(logger logger.Interface, filename string) Parser {
|
|
p := csv{
|
|
logger: logger,
|
|
filename: filename,
|
|
}
|
|
|
|
return &p
|
|
}
|
|
|
|
// Parse parses the csv file and returns a list of MountSpecs in the file
|
|
func (p csv) Parse() ([]*MountSpec, error) {
|
|
reader, err := os.Open(p.filename)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to open %v for reading: %v", p.filename, err)
|
|
}
|
|
defer reader.Close()
|
|
|
|
return p.parseFromReader(reader), nil
|
|
}
|
|
|
|
// parseFromReader parses the specified file and returns a list of required jetson mounts
|
|
func (p csv) parseFromReader(reader io.Reader) []*MountSpec {
|
|
var targets []*MountSpec
|
|
|
|
scanner := bufio.NewScanner(reader)
|
|
for scanner.Scan() {
|
|
line := scanner.Text()
|
|
target, err := NewMountSpecFromLine(line)
|
|
if err != nil {
|
|
p.logger.Debugf("Skipping invalid mount spec '%v': %v", line, err)
|
|
continue
|
|
}
|
|
targets = append(targets, target)
|
|
}
|
|
|
|
return targets
|
|
}
|