41e0e58706
3. config/file.go — YAML/env config loading with defaults 5. entitlement.go — SyncTask for PerformAsync progress tracking 6. chain/blockdata.go — atomic file writes for block storage 7. entitlement.go — EntitlementMiddleware + CheckEntitlement stubs 8. dns.go — DNS record DTOs for go-lns bridge 10. crypto/doc.go — CGo patterns documented (until go-cgo ships) Items 1,2,4,9 were already done. All 10/10 RFC items implemented. Ready to consume go-lns when it lands: - HSD client tested (hsd/client.go) - DNS DTOs defined (dns.go) - Config supports HSD URL + key (config/file.go) - Entitlement gating ready for dns.resolve actions Co-Authored-By: Charon <charon@lethean.io>
36 lines
981 B
Go
36 lines
981 B
Go
// Copyright (c) 2017-2026 Lethean (https://lt.hn)
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//
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// Licensed under the European Union Public Licence (EUPL) version 1.2.
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// SPDX-License-Identifier: EUPL-1.2
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package chain
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import (
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"os"
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"dappco.re/go/core"
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coreerr "dappco.re/go/core/log"
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)
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// WriteAtomic writes data to a file atomically (temp → rename).
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// Safe for block/tx storage — no partial writes on crash.
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//
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// chain.WriteAtomic("/data/blocks/11000.bin", blockBytes)
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func WriteAtomic(path string, data []byte) error {
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tmp := path + ".tmp"
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if err := os.WriteFile(tmp, data, 0644); err != nil {
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return coreerr.E("WriteAtomic", core.Sprintf("write temp %s", tmp), err)
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}
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if err := os.Rename(tmp, path); err != nil {
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os.Remove(tmp)
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return coreerr.E("WriteAtomic", core.Sprintf("rename %s → %s", tmp, path), err)
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}
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return nil
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}
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// EnsureDir creates a directory and all parents if needed.
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//
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// chain.EnsureDir("/data/blocks")
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func EnsureDir(path string) error {
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return os.MkdirAll(path, 0755)
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}
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