mirror of
https://github.com/gocsaf/csaf.git
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54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// This file is Free Software under the Apache-2.0 License
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// without warranty, see README.md and LICENSES/Apache-2.0.txt for details.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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// SPDX-FileCopyrightText: 2022 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
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// Software-Engineering: 2022 Intevation GmbH <https://intevation.de>
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// Package main implements the csaf_aggregator tool.
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package main
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import (
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"fmt"
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"log/slog"
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"os"
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"path/filepath"
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"github.com/csaf-poc/csaf_distribution/v3/internal/options"
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"github.com/gofrs/flock"
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)
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func lock(lockFile *string, fn func() error) error {
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if lockFile == nil {
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// No locking configured.
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return fn()
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}
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err := os.MkdirAll(filepath.Dir(*lockFile), 0700)
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if err != nil {
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return fmt.Errorf("file locking failed: %v", err)
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}
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fl := flock.New(*lockFile)
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locked, err := fl.TryLock()
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if err != nil {
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return fmt.Errorf("file locking failed: %v", err)
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}
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if !locked {
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return fmt.Errorf("cannot acquire file lock at %s. Maybe the CSAF aggregator is already running?", *lockFile)
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}
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defer fl.Unlock()
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return fn()
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}
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func main() {
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_, cfg, err := parseArgsConfig()
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cfg.prepareLogging()
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options.ErrorCheckStructured(err)
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options.ErrorCheckStructured(cfg.prepare())
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p := processor{cfg: cfg, log: slog.Default()}
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options.ErrorCheckStructured(lock(cfg.LockFile, p.process))
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}
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