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source.go
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source.go
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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
// Licensed under the BSD-3-Clause License (the "License").
// You may not use this file except in compliance with the License.
package source
import (
"context"
"errors"
"github.com/MakeNowJust/heredoc"
"github.com/spf13/cobra"
"kraftkit.sh/cmdfactory"
"kraftkit.sh/config"
"kraftkit.sh/log"
"kraftkit.sh/packmanager"
)
type SourceOptions struct {
Force bool `short:"F" long:"force" usage:"Do not run a compatibility test before sourcing."`
}
// Source adds a remote location for discovering one-or-many Unikraft
// components.
func Source(ctx context.Context, opts *SourceOptions, args ...string) error {
if opts == nil {
opts = &SourceOptions{}
}
return opts.Run(ctx, args)
}
func NewCmd() *cobra.Command {
cmd, err := cmdfactory.New(&SourceOptions{}, cobra.Command{
Short: "Add Unikraft component manifests",
Use: "source [FLAGS] [SOURCE]",
Args: cmdfactory.MinimumArgs(1, "must specify component or manifest"),
Aliases: []string{"src"},
Long: heredoc.Docf(`
Add a remote location for discovering one-or-many Unikraft components.
`),
Example: heredoc.Docf(`
# Add a single component as a Git repository
$ kraft pkg source https://github.com/unikraft/unikraft.git
# Add a manifest of components
$ kraft pkg source https://manifests.kraftkit.sh/index.yaml
# Add a Unikraft-compatible OCI compatible registry
$ kraft pkg source unikraft.org
`),
Annotations: map[string]string{
cmdfactory.AnnotationHelpGroup: "pkg",
},
})
if err != nil {
panic(err)
}
return cmd
}
func (*SourceOptions) Pre(cmd *cobra.Command, _ []string) error {
ctx, err := packmanager.WithDefaultUmbrellaManagerInContext(cmd.Context())
if err != nil {
return err
}
cmd.SetContext(ctx)
return nil
}
func (opts *SourceOptions) Run(ctx context.Context, args []string) error {
for _, source := range args {
if !opts.Force {
_, compatible, err := packmanager.G(ctx).IsCompatible(ctx,
source,
packmanager.WithRemote(true),
)
if err != nil {
return err
} else if !compatible {
return errors.New("incompatible package manager")
}
}
for _, manifest := range config.G[config.KraftKit](ctx).Unikraft.Manifests {
if source == manifest {
log.G(ctx).Warnf("manifest already saved: %s", source)
return nil
}
}
config.G[config.KraftKit](ctx).Unikraft.Manifests = append(
config.G[config.KraftKit](ctx).Unikraft.Manifests,
source,
)
if err := config.M[config.KraftKit](ctx).Write(true); err != nil {
return err
}
}
return nil
}