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47748df9b3
Enable [forbidigo](https://github.com/ashanbrown/forbidigo) linter which forbids print statements. Will check how to integrate this with the smallest impact possible, so a few `nolint` comments will likely be required. Plan is to just go through the issues and either: - Remove the print if it is nonsensical - Add a `//nolint` directive if it makes sense I don't plan on investigating the individual issues any further. <details> <summary>Initial Lint Results</summary> ``` modules/log/event.go:348:6: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(err) ^ modules/log/event.go:382:6: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(err) ^ modules/queue/unique_queue_disk_channel_test.go:20:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("TempDir %s\n", tmpDir) ^ contrib/backport/backport.go:168:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Backporting %s to %s as %s\n", pr, localReleaseBranch, backportBranch) ^ contrib/backport/backport.go:216:4: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Navigate to %s to open PR\n", url) ^ contrib/backport/backport.go:223:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* `xdg-open %s`\n", url) ^ contrib/backport/backport.go:233:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* `git push -u %s %s`\n", remote, backportBranch) ^ contrib/backport/backport.go:243:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Amending commit to prepend `Backport #%s` to body\n", pr) ^ contrib/backport/backport.go:272:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("* Attempting git cherry-pick --continue") ^ contrib/backport/backport.go:281:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Attempting git cherry-pick %s\n", sha) ^ contrib/backport/backport.go:297:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Current branch is %s\n", currentBranch) ^ contrib/backport/backport.go:299:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Current branch is %s - not checking out\n", currentBranch) ^ contrib/backport/backport.go:304:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* Branch %s already exists. Checking it out...\n", backportBranch) ^ contrib/backport/backport.go:308:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* `git checkout -b %s %s`\n", backportBranch, releaseBranch) ^ contrib/backport/backport.go:313:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* `git fetch %s main`\n", remote) ^ contrib/backport/backport.go:316:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(string(out)) ^ contrib/backport/backport.go:319:2: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(string(out)) ^ contrib/backport/backport.go:321:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("* `git fetch %s %s`\n", remote, releaseBranch) ^ contrib/backport/backport.go:324:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(string(out)) ^ contrib/backport/backport.go:327:2: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(string(out)) ^ models/unittest/fixtures.go:50:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Unsupported RDBMS for integration tests") ^ models/unittest/fixtures.go:89:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("LoadFixtures failed after retries: %v\n", err) ^ models/unittest/fixtures.go:110:4: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Failed to generate sequence update: %v\n", err) ^ models/unittest/fixtures.go:117:6: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Failed to update sequence: %s Error: %v\n", value, err) ^ models/migrations/base/tests.go:118:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Environment variable $GITEA_ROOT not set") ^ models/migrations/base/tests.go:127:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Could not find gitea binary at %s\n", setting.AppPath) ^ models/migrations/base/tests.go:134:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Environment variable $GITEA_CONF not set - defaulting to %s\n", giteaConf) ^ models/migrations/base/tests.go:145:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Unable to create temporary data path %v\n", err) ^ models/migrations/base/tests.go:154:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Unable to InitFull: %v\n", err) ^ models/migrations/v1_11/v112.go:34:5: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Error: %v", err) ^ contrib/fixtures/fixture_generation.go:36:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("CreateTestEngine: %+v", err) ^ contrib/fixtures/fixture_generation.go:40:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("PrepareTestDatabase: %+v\n", err) ^ contrib/fixtures/fixture_generation.go:46:5: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("generate '%s': %+v\n", r, err) ^ contrib/fixtures/fixture_generation.go:53:5: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("generate '%s': %+v\n", g.name, err) ^ contrib/fixtures/fixture_generation.go:71:4: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s created.\n", path) ^ services/gitdiff/gitdiff_test.go:543:2: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println(result) ^ services/gitdiff/gitdiff_test.go:560:2: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println(result) ^ services/gitdiff/gitdiff_test.go:577:2: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println(result) ^ modules/web/routing/logger_manager.go:34:2: use of `print` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) print Printer ^ modules/doctor/paths.go:109:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Warning: can't remove temporary file: '%s'\n", tmpFile.Name()) ^ tests/test_utils.go:33:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf(format+"\n", args...) ^ tests/test_utils.go:61:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Environment variable $GITEA_CONF not set, use default: %s\n", giteaConf) ^ cmd/actions.go:54:9: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) _, _ = fmt.Printf("%s\n", respText) ^ cmd/admin_user_change_password.go:74:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s's password has been successfully updated!\n", user.Name) ^ cmd/admin_user_create.go:109:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("generated random password is '%s'\n", password) ^ cmd/admin_user_create.go:164:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Access token was successfully created... %s\n", t.Token) ^ cmd/admin_user_create.go:167:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("New user '%s' has been successfully created!\n", username) ^ cmd/admin_user_generate_access_token.go:74:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s\n", t.Token) ^ cmd/admin_user_generate_access_token.go:76:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Access token was successfully created: %s\n", t.Token) ^ cmd/admin_user_must_change_password.go:56:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Updated %d users setting MustChangePassword to %t\n", n, mustChangePassword) ^ cmd/convert.go:44:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Converted successfully, please confirm your database's character set is now utf8mb4") ^ cmd/convert.go:50:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Converted successfully, please confirm your database's all columns character is NVARCHAR now") ^ cmd/convert.go:52:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("This command can only be used with a MySQL or MSSQL database") ^ cmd/doctor.go:104:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(err) ^ cmd/doctor.go:105:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Check if you are using the right config file. You can use a --config directive to specify one.") ^ cmd/doctor.go:243:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(err) ^ cmd/embedded.go:154:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(a.path) ^ cmd/embedded.go:198:3: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("Using app.ini at", setting.CustomConf) ^ cmd/embedded.go:217:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Extracting to %s:\n", destdir) ^ cmd/embedded.go:253:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s already exists; skipped.\n", dest) ^ cmd/embedded.go:275:2: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(dest) ^ cmd/generate.go:63:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s", internalToken) ^ cmd/generate.go:66:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("\n") ^ cmd/generate.go:78:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s", JWTSecretBase64) ^ cmd/generate.go:81:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("\n") ^ cmd/generate.go:93:2: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s", secretKey) ^ cmd/generate.go:96:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("\n") ^ cmd/keys.go:74:2: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println(strings.TrimSpace(authorizedString)) ^ cmd/mailer.go:32:4: use of `fmt.Print` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Print("warning: Content is empty") ^ cmd/mailer.go:35:3: use of `fmt.Print` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Print("Proceed with sending email? [Y/n] ") ^ cmd/mailer.go:40:4: use of `fmt.Println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Println("The mail was not sent") ^ cmd/mailer.go:49:9: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) _, _ = fmt.Printf("Sent %s email(s) to all users\n", respText) ^ cmd/serv.go:147:3: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println("Gitea: SSH has been disabled") ^ cmd/serv.go:153:4: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("error showing subcommand help: %v\n", err) ^ cmd/serv.go:175:4: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println("Hi there! You've successfully authenticated with the deploy key named " + key.Name + ", but Gitea does not provide shell access.") ^ cmd/serv.go:177:4: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println("Hi there! You've successfully authenticated with the principal " + key.Content + ", but Gitea does not provide shell access.") ^ cmd/serv.go:179:4: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println("Hi there, " + user.Name + "! You've successfully authenticated with the key named " + key.Name + ", but Gitea does not provide shell access.") ^ cmd/serv.go:181:3: use of `println` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) println("If this is unexpected, please log in with password and setup Gitea under another user.") ^ cmd/serv.go:196:5: use of `fmt.Print` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Print(`{"type":"gitea","version":1}`) ^ tests/e2e/e2e_test.go:54:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Error initializing test database: %v\n", err) ^ tests/e2e/e2e_test.go:63:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("util.RemoveAll: %v\n", err) ^ tests/e2e/e2e_test.go:67:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Unable to remove repo indexer: %v\n", err) ^ tests/e2e/e2e_test.go:109:6: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%v", stdout.String()) ^ tests/e2e/e2e_test.go:110:6: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%v", stderr.String()) ^ tests/e2e/e2e_test.go:113:6: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%v", stdout.String()) ^ tests/integration/integration_test.go:124:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Error initializing test database: %v\n", err) ^ tests/integration/integration_test.go:135:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("util.RemoveAll: %v\n", err) ^ tests/integration/integration_test.go:139:3: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("Unable to remove repo indexer: %v\n", err) ^ tests/integration/repo_test.go:357:4: use of `fmt.Printf` forbidden by pattern `^(fmt\.Print(|f|ln)|print|println)$` (forbidigo) fmt.Printf("%s", resp.Body) ^ ``` </details> --------- Co-authored-by: Giteabot <teabot@gitea.io>
460 lines
10 KiB
Go
460 lines
10 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package log
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import (
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"context"
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"fmt"
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"runtime/pprof"
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"sync"
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"time"
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"code.gitea.io/gitea/modules/process"
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)
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// Event represents a logging event
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type Event struct {
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level Level
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msg string
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caller string
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filename string
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line int
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time time.Time
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stacktrace string
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}
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// EventLogger represents the behaviours of a logger
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type EventLogger interface {
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LogEvent(event *Event) error
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Close()
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Flush()
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GetLevel() Level
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GetStacktraceLevel() Level
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GetName() string
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ReleaseReopen() error
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}
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// ChannelledLog represents a cached channel to a LoggerProvider
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type ChannelledLog struct {
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ctx context.Context
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finished context.CancelFunc
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name string
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provider string
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queue chan *Event
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loggerProvider LoggerProvider
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flush chan bool
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close chan bool
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closed chan bool
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}
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// NewChannelledLog a new logger instance with given logger provider and config.
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func NewChannelledLog(parent context.Context, name, provider, config string, bufferLength int64) (*ChannelledLog, error) {
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if log, ok := providers[provider]; ok {
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l := &ChannelledLog{
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queue: make(chan *Event, bufferLength),
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flush: make(chan bool),
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close: make(chan bool),
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closed: make(chan bool),
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}
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l.loggerProvider = log()
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if err := l.loggerProvider.Init(config); err != nil {
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return nil, err
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}
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l.name = name
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l.provider = provider
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l.ctx, _, l.finished = process.GetManager().AddTypedContext(parent, fmt.Sprintf("Logger: %s(%s)", l.name, l.provider), process.SystemProcessType, false)
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go l.Start()
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return l, nil
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}
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return nil, ErrUnknownProvider{provider}
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}
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// Start processing the ChannelledLog
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func (l *ChannelledLog) Start() {
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pprof.SetGoroutineLabels(l.ctx)
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defer l.finished()
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for {
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select {
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case event, ok := <-l.queue:
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if !ok {
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l.closeLogger()
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return
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}
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l.loggerProvider.LogEvent(event) //nolint:errcheck
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case _, ok := <-l.flush:
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if !ok {
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l.closeLogger()
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return
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}
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l.emptyQueue()
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l.loggerProvider.Flush()
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case <-l.close:
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l.emptyQueue()
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l.closeLogger()
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return
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}
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}
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}
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// LogEvent logs an event to this ChannelledLog
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func (l *ChannelledLog) LogEvent(event *Event) error {
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select {
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case l.queue <- event:
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return nil
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case <-time.After(60 * time.Second):
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// We're blocked!
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return ErrTimeout{
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Name: l.name,
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Provider: l.provider,
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}
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}
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}
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func (l *ChannelledLog) emptyQueue() bool {
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for {
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select {
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case event, ok := <-l.queue:
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if !ok {
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return false
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}
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l.loggerProvider.LogEvent(event) //nolint:errcheck
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default:
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return true
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}
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}
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}
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func (l *ChannelledLog) closeLogger() {
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l.loggerProvider.Flush()
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l.loggerProvider.Close()
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l.closed <- true
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}
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// Close this ChannelledLog
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func (l *ChannelledLog) Close() {
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l.close <- true
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<-l.closed
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}
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// Flush this ChannelledLog
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func (l *ChannelledLog) Flush() {
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l.flush <- true
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}
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// ReleaseReopen this ChannelledLog
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func (l *ChannelledLog) ReleaseReopen() error {
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return l.loggerProvider.ReleaseReopen()
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}
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// GetLevel gets the level of this ChannelledLog
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func (l *ChannelledLog) GetLevel() Level {
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return l.loggerProvider.GetLevel()
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}
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// GetStacktraceLevel gets the level of this ChannelledLog
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func (l *ChannelledLog) GetStacktraceLevel() Level {
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return l.loggerProvider.GetStacktraceLevel()
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}
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// GetName returns the name of this ChannelledLog
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func (l *ChannelledLog) GetName() string {
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return l.name
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}
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// MultiChannelledLog represents a cached channel to a LoggerProvider
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type MultiChannelledLog struct {
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ctx context.Context
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finished context.CancelFunc
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name string
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bufferLength int64
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queue chan *Event
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rwmutex sync.RWMutex
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loggers map[string]EventLogger
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flush chan bool
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close chan bool
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started bool
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level Level
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stacktraceLevel Level
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closed chan bool
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paused chan bool
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}
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// NewMultiChannelledLog a new logger instance with given logger provider and config.
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func NewMultiChannelledLog(name string, bufferLength int64) *MultiChannelledLog {
|
|
ctx, _, finished := process.GetManager().AddTypedContext(context.Background(), fmt.Sprintf("Logger: %s", name), process.SystemProcessType, false)
|
|
|
|
m := &MultiChannelledLog{
|
|
ctx: ctx,
|
|
finished: finished,
|
|
name: name,
|
|
queue: make(chan *Event, bufferLength),
|
|
flush: make(chan bool),
|
|
bufferLength: bufferLength,
|
|
loggers: make(map[string]EventLogger),
|
|
level: NONE,
|
|
stacktraceLevel: NONE,
|
|
close: make(chan bool),
|
|
closed: make(chan bool),
|
|
paused: make(chan bool),
|
|
}
|
|
return m
|
|
}
|
|
|
|
// AddLogger adds a logger to this MultiChannelledLog
|
|
func (m *MultiChannelledLog) AddLogger(logger EventLogger) error {
|
|
m.rwmutex.Lock()
|
|
name := logger.GetName()
|
|
if _, has := m.loggers[name]; has {
|
|
m.rwmutex.Unlock()
|
|
return ErrDuplicateName{name}
|
|
}
|
|
m.loggers[name] = logger
|
|
if logger.GetLevel() < m.level {
|
|
m.level = logger.GetLevel()
|
|
}
|
|
if logger.GetStacktraceLevel() < m.stacktraceLevel {
|
|
m.stacktraceLevel = logger.GetStacktraceLevel()
|
|
}
|
|
m.rwmutex.Unlock()
|
|
go m.Start()
|
|
return nil
|
|
}
|
|
|
|
// DelLogger removes a sub logger from this MultiChannelledLog
|
|
// NB: If you delete the last sublogger this logger will simply drop
|
|
// log events
|
|
func (m *MultiChannelledLog) DelLogger(name string) bool {
|
|
m.rwmutex.Lock()
|
|
logger, has := m.loggers[name]
|
|
if !has {
|
|
m.rwmutex.Unlock()
|
|
return false
|
|
}
|
|
delete(m.loggers, name)
|
|
m.internalResetLevel()
|
|
m.rwmutex.Unlock()
|
|
logger.Flush()
|
|
logger.Close()
|
|
return true
|
|
}
|
|
|
|
// GetEventLogger returns a sub logger from this MultiChannelledLog
|
|
func (m *MultiChannelledLog) GetEventLogger(name string) EventLogger {
|
|
m.rwmutex.RLock()
|
|
defer m.rwmutex.RUnlock()
|
|
return m.loggers[name]
|
|
}
|
|
|
|
// GetEventLoggerNames returns a list of names
|
|
func (m *MultiChannelledLog) GetEventLoggerNames() []string {
|
|
m.rwmutex.RLock()
|
|
defer m.rwmutex.RUnlock()
|
|
var keys []string
|
|
for k := range m.loggers {
|
|
keys = append(keys, k)
|
|
}
|
|
return keys
|
|
}
|
|
|
|
func (m *MultiChannelledLog) closeLoggers() {
|
|
m.rwmutex.Lock()
|
|
for _, logger := range m.loggers {
|
|
logger.Flush()
|
|
logger.Close()
|
|
}
|
|
m.rwmutex.Unlock()
|
|
m.closed <- true
|
|
}
|
|
|
|
// Pause pauses this Logger
|
|
func (m *MultiChannelledLog) Pause() {
|
|
m.paused <- true
|
|
}
|
|
|
|
// Resume resumes this Logger
|
|
func (m *MultiChannelledLog) Resume() {
|
|
m.paused <- false
|
|
}
|
|
|
|
// ReleaseReopen causes this logger to tell its subloggers to release and reopen
|
|
func (m *MultiChannelledLog) ReleaseReopen() error {
|
|
m.rwmutex.Lock()
|
|
defer m.rwmutex.Unlock()
|
|
var accumulatedErr error
|
|
for _, logger := range m.loggers {
|
|
if err := logger.ReleaseReopen(); err != nil {
|
|
if accumulatedErr == nil {
|
|
accumulatedErr = fmt.Errorf("Error whilst reopening: %s Error: %w", logger.GetName(), err)
|
|
} else {
|
|
accumulatedErr = fmt.Errorf("Error whilst reopening: %s Error: %v & %w", logger.GetName(), err, accumulatedErr)
|
|
}
|
|
}
|
|
}
|
|
return accumulatedErr
|
|
}
|
|
|
|
// Start processing the MultiChannelledLog
|
|
func (m *MultiChannelledLog) Start() {
|
|
m.rwmutex.Lock()
|
|
if m.started {
|
|
m.rwmutex.Unlock()
|
|
return
|
|
}
|
|
pprof.SetGoroutineLabels(m.ctx)
|
|
defer m.finished()
|
|
|
|
m.started = true
|
|
m.rwmutex.Unlock()
|
|
paused := false
|
|
for {
|
|
if paused {
|
|
select {
|
|
case paused = <-m.paused:
|
|
if !paused {
|
|
m.ResetLevel()
|
|
}
|
|
case _, ok := <-m.flush:
|
|
if !ok {
|
|
m.closeLoggers()
|
|
return
|
|
}
|
|
m.rwmutex.RLock()
|
|
for _, logger := range m.loggers {
|
|
logger.Flush()
|
|
}
|
|
m.rwmutex.RUnlock()
|
|
case <-m.close:
|
|
m.closeLoggers()
|
|
return
|
|
}
|
|
continue
|
|
}
|
|
select {
|
|
case paused = <-m.paused:
|
|
if paused && m.level < INFO {
|
|
m.level = INFO
|
|
}
|
|
case event, ok := <-m.queue:
|
|
if !ok {
|
|
m.closeLoggers()
|
|
return
|
|
}
|
|
m.rwmutex.RLock()
|
|
for _, logger := range m.loggers {
|
|
err := logger.LogEvent(event)
|
|
if err != nil {
|
|
fmt.Println(err) //nolint:forbidigo
|
|
}
|
|
}
|
|
m.rwmutex.RUnlock()
|
|
case _, ok := <-m.flush:
|
|
if !ok {
|
|
m.closeLoggers()
|
|
return
|
|
}
|
|
m.emptyQueue()
|
|
m.rwmutex.RLock()
|
|
for _, logger := range m.loggers {
|
|
logger.Flush()
|
|
}
|
|
m.rwmutex.RUnlock()
|
|
case <-m.close:
|
|
m.emptyQueue()
|
|
m.closeLoggers()
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func (m *MultiChannelledLog) emptyQueue() bool {
|
|
for {
|
|
select {
|
|
case event, ok := <-m.queue:
|
|
if !ok {
|
|
return false
|
|
}
|
|
m.rwmutex.RLock()
|
|
for _, logger := range m.loggers {
|
|
err := logger.LogEvent(event)
|
|
if err != nil {
|
|
fmt.Println(err) //nolint:forbidigo
|
|
}
|
|
}
|
|
m.rwmutex.RUnlock()
|
|
default:
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
|
|
// LogEvent logs an event to this MultiChannelledLog
|
|
func (m *MultiChannelledLog) LogEvent(event *Event) error {
|
|
select {
|
|
case m.queue <- event:
|
|
return nil
|
|
case <-time.After(100 * time.Millisecond):
|
|
// We're blocked!
|
|
return ErrTimeout{
|
|
Name: m.name,
|
|
Provider: "MultiChannelledLog",
|
|
}
|
|
}
|
|
}
|
|
|
|
// Close this MultiChannelledLog
|
|
func (m *MultiChannelledLog) Close() {
|
|
m.close <- true
|
|
<-m.closed
|
|
}
|
|
|
|
// Flush this ChannelledLog
|
|
func (m *MultiChannelledLog) Flush() {
|
|
m.flush <- true
|
|
}
|
|
|
|
// GetLevel gets the level of this MultiChannelledLog
|
|
func (m *MultiChannelledLog) GetLevel() Level {
|
|
m.rwmutex.RLock()
|
|
defer m.rwmutex.RUnlock()
|
|
return m.level
|
|
}
|
|
|
|
// GetStacktraceLevel gets the level of this MultiChannelledLog
|
|
func (m *MultiChannelledLog) GetStacktraceLevel() Level {
|
|
m.rwmutex.RLock()
|
|
defer m.rwmutex.RUnlock()
|
|
return m.stacktraceLevel
|
|
}
|
|
|
|
func (m *MultiChannelledLog) internalResetLevel() Level {
|
|
m.level = NONE
|
|
for _, logger := range m.loggers {
|
|
level := logger.GetLevel()
|
|
if level < m.level {
|
|
m.level = level
|
|
}
|
|
level = logger.GetStacktraceLevel()
|
|
if level < m.stacktraceLevel {
|
|
m.stacktraceLevel = level
|
|
}
|
|
}
|
|
return m.level
|
|
}
|
|
|
|
// ResetLevel will reset the level of this MultiChannelledLog
|
|
func (m *MultiChannelledLog) ResetLevel() Level {
|
|
m.rwmutex.Lock()
|
|
defer m.rwmutex.Unlock()
|
|
return m.internalResetLevel()
|
|
}
|
|
|
|
// GetName gets the name of this MultiChannelledLog
|
|
func (m *MultiChannelledLog) GetName() string {
|
|
return m.name
|
|
}
|
|
|
|
func (e *Event) GetMsg() string {
|
|
return e.msg
|
|
}
|