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https://github.com/gocsaf/csaf.git
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e658738b56
This PR adds structured logging for the aggregator service. Currently, only the text handler is used, but I can extend this to use the JSON handler as well. In this case, probably some code that is shared between the aggregator and the downloader would need to be moved to a common package. I was also wondering, whether this repo is moving to Go 1.21 at the future, since `slog` was introduced in to the standard lib in 1.21. So currently, this still relies on the `x/exp` package. Fixes #462
54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// This file is Free Software under the MIT License
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// without warranty, see README.md and LICENSES/MIT.txt for details.
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//
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// SPDX-License-Identifier: MIT
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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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"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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"golang.org/x/exp/slog"
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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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