forked from Silverfish/proton-bridge
70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package logging
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import (
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"fmt"
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"io/fs"
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"os"
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"path/filepath"
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"github.com/bradenaw/juniper/xslices"
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"github.com/sirupsen/logrus"
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"golang.org/x/exp/slices"
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)
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func clearLogs(logDir string, maxLogs int, maxCrashes int) error {
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files, err := os.ReadDir(logDir)
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if err != nil {
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return fmt.Errorf("failed to read log directory: %w", err)
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}
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names := xslices.Map(files, func(file fs.DirEntry) string {
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return file.Name()
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})
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// Remove old logs.
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removeOldLogs(logDir, xslices.Filter(names, func(name string) bool {
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return MatchLogName(name) && !MatchStackTraceName(name)
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}), maxLogs)
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// Remove old stack traces.
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removeOldLogs(logDir, xslices.Filter(names, func(name string) bool {
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return MatchLogName(name) && MatchStackTraceName(name)
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}), maxCrashes)
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return nil
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}
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func removeOldLogs(dir string, names []string, max int) {
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if count := len(names); count <= max {
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return
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}
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// Sort by timestamp, oldest first.
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slices.SortFunc(names, func(a, b string) bool {
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return getLogTime(a) < getLogTime(b)
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})
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for _, path := range xslices.Map(names[:len(names)-max], func(name string) string { return filepath.Join(dir, name) }) {
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if err := os.Remove(path); err != nil {
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logrus.WithError(err).WithField("path", path).Warn("Failed to remove old log file")
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}
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}
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}
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