mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-23 00:38:26 +00:00
129 lines
3.0 KiB
Go
129 lines
3.0 KiB
Go
/**
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# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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#
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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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**/
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package transform
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import (
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"fmt"
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"io"
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"os"
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"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi/transform/root"
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"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
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"github.com/container-orchestrated-devices/container-device-interface/pkg/cdi"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli/v2"
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)
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type command struct {
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logger *logrus.Logger
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}
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type options struct {
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input string
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output string
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}
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// NewCommand constructs a command with the specified logger
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func NewCommand(logger *logrus.Logger) *cli.Command {
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c := command{
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logger: logger,
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}
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return c.build()
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}
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// build creates the CLI command
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func (m command) build() *cli.Command {
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opts := options{}
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c := cli.Command{
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Name: "transform",
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Usage: "Apply a transform to a CDI specification",
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Before: func(c *cli.Context) error {
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return m.validateFlags(c, &opts)
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},
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Action: func(c *cli.Context) error {
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return m.run(c, &opts)
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},
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}
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c.Flags = []cli.Flag{
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&cli.StringFlag{
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Name: "input",
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Usage: "Specify the file to read the CDI specification from. If this is '-' the specification is read from STDIN",
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Value: "-",
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Destination: &opts.input,
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},
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&cli.StringFlag{
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Name: "output",
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Usage: "Specify the file to output the generated CDI specification to. If this is '' the specification is output to STDOUT",
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Destination: &opts.output,
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},
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}
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c.Subcommands = []*cli.Command{
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root.NewCommand(m.logger, &opts),
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}
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return &c
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}
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func (m command) validateFlags(c *cli.Context, opts *options) error {
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return nil
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}
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func (m command) run(c *cli.Context, cfg *options) error {
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return nil
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}
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// Load lodas the input CDI specification
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func (o options) Load() (spec.Interface, error) {
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contents, err := o.getContents()
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if err != nil {
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return nil, fmt.Errorf("failed to read spec contents: %v", err)
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}
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raw, err := cdi.ParseSpec(contents)
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if err != nil {
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return nil, fmt.Errorf("failed to parse CDI spec: %v", err)
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}
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return spec.New(
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spec.WithRawSpec(raw),
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)
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}
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func (o options) getContents() ([]byte, error) {
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if o.input == "-" {
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return io.ReadAll(os.Stdin)
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}
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return os.ReadFile(o.input)
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}
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// Save saves the CDI specification to the output file
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func (o options) Save(s spec.Interface) error {
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if o.output == "" {
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_, err := s.WriteTo(os.Stdout)
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if err != nil {
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return fmt.Errorf("failed to write CDI spec to STDOUT: %v", err)
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}
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return nil
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}
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return s.Save(o.output)
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}
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