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https://github.com/siderolabs/image-factory.git
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354baca8a0
Fixes #4 This caches the result of the boot asset build (a call to Talos `imager`) so that we don't rebuild the asset twice. OCI Registry is used as a cache. An internal registry can be used for caching, we don't need to expose it to the world. Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package asset
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import (
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"fmt"
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"io"
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"os"
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"runtime"
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)
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// tmpDir holds a generates boot asset in a temporary directory.
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type tmpDir struct {
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directoryPath string
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assetPath string
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size int64
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}
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// Check interface.
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var _ BootAsset = (*tmpDir)(nil)
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// newTmpDir creates a new temporary directory to hold the boot asset.
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func newTmpDir() (*tmpDir, error) {
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dir, err := os.MkdirTemp("", "talos-asset")
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if err != nil {
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return nil, fmt.Errorf("failed to create temporary directory: %w", err)
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}
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t := &tmpDir{
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directoryPath: dir,
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}
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runtime.SetFinalizer(t, func(t *tmpDir) {
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t.cleanup() //nolint:errcheck
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})
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return t, nil
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}
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// Size returns the size of the boot asset.
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func (t *tmpDir) Size() int64 {
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return t.size
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}
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// Reader returns a reader for the boot asset.
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func (t *tmpDir) Reader() (io.ReadCloser, error) {
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return os.Open(t.assetPath)
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}
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// cleanup releases the boot asset.
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func (t *tmpDir) cleanup() error {
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return os.RemoveAll(t.directoryPath)
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}
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