forgejo/models/migrations/base/tests.go

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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
Enable forbidigo linter (#24278) 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>
2023-04-24 11:50:58 +02:00
//nolint:forbidigo
package base
import (
"context"
"fmt"
"os"
"path"
"path/filepath"
"runtime"
"testing"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
Rewrite queue (#24505) # ⚠️ Breaking Many deprecated queue config options are removed (actually, they should have been removed in 1.18/1.19). If you see the fatal message when starting Gitea: "Please update your app.ini to remove deprecated config options", please follow the error messages to remove these options from your app.ini. Example: ``` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options ``` Many options in `[queue]` are are dropped, including: `WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`, `BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed from app.ini. # The problem The old queue package has some legacy problems: * complexity: I doubt few people could tell how it works. * maintainability: Too many channels and mutex/cond are mixed together, too many different structs/interfaces depends each other. * stability: due to the complexity & maintainability, sometimes there are strange bugs and difficult to debug, and some code doesn't have test (indeed some code is difficult to test because a lot of things are mixed together). * general applicability: although it is called "queue", its behavior is not a well-known queue. * scalability: it doesn't seem easy to make it work with a cluster without breaking its behaviors. It came from some very old code to "avoid breaking", however, its technical debt is too heavy now. It's a good time to introduce a better "queue" package. # The new queue package It keeps using old config and concept as much as possible. * It only contains two major kinds of concepts: * The "base queue": channel, levelqueue, redis * They have the same abstraction, the same interface, and they are tested by the same testing code. * The "WokerPoolQueue", it uses the "base queue" to provide "worker pool" function, calls the "handler" to process the data in the base queue. * The new code doesn't do "PushBack" * Think about a queue with many workers, the "PushBack" can't guarantee the order for re-queued unhandled items, so in new code it just does "normal push" * The new code doesn't do "pause/resume" * The "pause/resume" was designed to handle some handler's failure: eg: document indexer (elasticsearch) is down * If a queue is paused for long time, either the producers blocks or the new items are dropped. * The new code doesn't do such "pause/resume" trick, it's not a common queue's behavior and it doesn't help much. * If there are unhandled items, the "push" function just blocks for a few seconds and then re-queue them and retry. * The new code doesn't do "worker booster" * Gitea's queue's handlers are light functions, the cost is only the go-routine, so it doesn't make sense to "boost" them. * The new code only use "max worker number" to limit the concurrent workers. * The new "Push" never blocks forever * Instead of creating more and more blocking goroutines, return an error is more friendly to the server and to the end user. There are more details in code comments: eg: the "Flush" problem, the strange "code.index" hanging problem, the "immediate" queue problem. Almost ready for review. TODO: * [x] add some necessary comments during review * [x] add some more tests if necessary * [x] update documents and config options * [x] test max worker / active worker * [x] re-run the CI tasks to see whether any test is flaky * [x] improve the `handleOldLengthConfiguration` to provide more friendly messages * [x] fine tune default config values (eg: length?) ## Code coverage: ![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
2023-05-08 13:49:59 +02:00
"code.gitea.io/gitea/modules/testlogger"
"github.com/stretchr/testify/assert"
"xorm.io/xorm"
)
// PrepareTestEnv prepares the test environment and reset the database. The skip parameter should usually be 0.
// Provide models to be sync'd with the database - in particular any models you expect fixtures to be loaded from.
//
// fixtures in `models/migrations/fixtures/<TestName>` will be loaded automatically
func PrepareTestEnv(t *testing.T, skip int, syncModels ...interface{}) (*xorm.Engine, func()) {
t.Helper()
ourSkip := 2
ourSkip += skip
Rewrite queue (#24505) # ⚠️ Breaking Many deprecated queue config options are removed (actually, they should have been removed in 1.18/1.19). If you see the fatal message when starting Gitea: "Please update your app.ini to remove deprecated config options", please follow the error messages to remove these options from your app.ini. Example: ``` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options ``` Many options in `[queue]` are are dropped, including: `WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`, `BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed from app.ini. # The problem The old queue package has some legacy problems: * complexity: I doubt few people could tell how it works. * maintainability: Too many channels and mutex/cond are mixed together, too many different structs/interfaces depends each other. * stability: due to the complexity & maintainability, sometimes there are strange bugs and difficult to debug, and some code doesn't have test (indeed some code is difficult to test because a lot of things are mixed together). * general applicability: although it is called "queue", its behavior is not a well-known queue. * scalability: it doesn't seem easy to make it work with a cluster without breaking its behaviors. It came from some very old code to "avoid breaking", however, its technical debt is too heavy now. It's a good time to introduce a better "queue" package. # The new queue package It keeps using old config and concept as much as possible. * It only contains two major kinds of concepts: * The "base queue": channel, levelqueue, redis * They have the same abstraction, the same interface, and they are tested by the same testing code. * The "WokerPoolQueue", it uses the "base queue" to provide "worker pool" function, calls the "handler" to process the data in the base queue. * The new code doesn't do "PushBack" * Think about a queue with many workers, the "PushBack" can't guarantee the order for re-queued unhandled items, so in new code it just does "normal push" * The new code doesn't do "pause/resume" * The "pause/resume" was designed to handle some handler's failure: eg: document indexer (elasticsearch) is down * If a queue is paused for long time, either the producers blocks or the new items are dropped. * The new code doesn't do such "pause/resume" trick, it's not a common queue's behavior and it doesn't help much. * If there are unhandled items, the "push" function just blocks for a few seconds and then re-queue them and retry. * The new code doesn't do "worker booster" * Gitea's queue's handlers are light functions, the cost is only the go-routine, so it doesn't make sense to "boost" them. * The new code only use "max worker number" to limit the concurrent workers. * The new "Push" never blocks forever * Instead of creating more and more blocking goroutines, return an error is more friendly to the server and to the end user. There are more details in code comments: eg: the "Flush" problem, the strange "code.index" hanging problem, the "immediate" queue problem. Almost ready for review. TODO: * [x] add some necessary comments during review * [x] add some more tests if necessary * [x] update documents and config options * [x] test max worker / active worker * [x] re-run the CI tasks to see whether any test is flaky * [x] improve the `handleOldLengthConfiguration` to provide more friendly messages * [x] fine tune default config values (eg: length?) ## Code coverage: ![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
2023-05-08 13:49:59 +02:00
deferFn := testlogger.PrintCurrentTest(t, ourSkip)
assert.NoError(t, os.RemoveAll(setting.RepoRootPath))
assert.NoError(t, unittest.CopyDir(path.Join(filepath.Dir(setting.AppPath), "tests/gitea-repositories-meta"), setting.RepoRootPath))
ownerDirs, err := os.ReadDir(setting.RepoRootPath)
if err != nil {
assert.NoError(t, err, "unable to read the new repo root: %v\n", err)
}
for _, ownerDir := range ownerDirs {
if !ownerDir.Type().IsDir() {
continue
}
repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
if err != nil {
assert.NoError(t, err, "unable to read the new repo root: %v\n", err)
}
for _, repoDir := range repoDirs {
_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "pack"), 0o755)
_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "info"), 0o755)
_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "heads"), 0o755)
_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "tag"), 0o755)
}
}
if err := deleteDB(); err != nil {
t.Errorf("unable to reset database: %v", err)
return nil, deferFn
}
x, err := newXORMEngine()
assert.NoError(t, err)
if x != nil {
oldDefer := deferFn
deferFn = func() {
oldDefer()
if err := x.Close(); err != nil {
t.Errorf("error during close: %v", err)
}
if err := deleteDB(); err != nil {
t.Errorf("unable to reset database: %v", err)
}
}
}
if err != nil {
return x, deferFn
}
if len(syncModels) > 0 {
if err := x.Sync2(syncModels...); err != nil {
t.Errorf("error during sync: %v", err)
return x, deferFn
}
}
fixturesDir := filepath.Join(filepath.Dir(setting.AppPath), "models", "migrations", "fixtures", t.Name())
if _, err := os.Stat(fixturesDir); err == nil {
t.Logf("initializing fixtures from: %s", fixturesDir)
if err := unittest.InitFixtures(
unittest.FixturesOptions{
Dir: fixturesDir,
}, x); err != nil {
t.Errorf("error whilst initializing fixtures from %s: %v", fixturesDir, err)
return x, deferFn
}
if err := unittest.LoadFixtures(x); err != nil {
t.Errorf("error whilst loading fixtures from %s: %v", fixturesDir, err)
return x, deferFn
}
} else if !os.IsNotExist(err) {
t.Errorf("unexpected error whilst checking for existence of fixtures: %v", err)
} else {
t.Logf("no fixtures found in: %s", fixturesDir)
}
return x, deferFn
}
func MainTest(m *testing.M) {
Rewrite queue (#24505) # ⚠️ Breaking Many deprecated queue config options are removed (actually, they should have been removed in 1.18/1.19). If you see the fatal message when starting Gitea: "Please update your app.ini to remove deprecated config options", please follow the error messages to remove these options from your app.ini. Example: ``` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options ``` Many options in `[queue]` are are dropped, including: `WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`, `BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed from app.ini. # The problem The old queue package has some legacy problems: * complexity: I doubt few people could tell how it works. * maintainability: Too many channels and mutex/cond are mixed together, too many different structs/interfaces depends each other. * stability: due to the complexity & maintainability, sometimes there are strange bugs and difficult to debug, and some code doesn't have test (indeed some code is difficult to test because a lot of things are mixed together). * general applicability: although it is called "queue", its behavior is not a well-known queue. * scalability: it doesn't seem easy to make it work with a cluster without breaking its behaviors. It came from some very old code to "avoid breaking", however, its technical debt is too heavy now. It's a good time to introduce a better "queue" package. # The new queue package It keeps using old config and concept as much as possible. * It only contains two major kinds of concepts: * The "base queue": channel, levelqueue, redis * They have the same abstraction, the same interface, and they are tested by the same testing code. * The "WokerPoolQueue", it uses the "base queue" to provide "worker pool" function, calls the "handler" to process the data in the base queue. * The new code doesn't do "PushBack" * Think about a queue with many workers, the "PushBack" can't guarantee the order for re-queued unhandled items, so in new code it just does "normal push" * The new code doesn't do "pause/resume" * The "pause/resume" was designed to handle some handler's failure: eg: document indexer (elasticsearch) is down * If a queue is paused for long time, either the producers blocks or the new items are dropped. * The new code doesn't do such "pause/resume" trick, it's not a common queue's behavior and it doesn't help much. * If there are unhandled items, the "push" function just blocks for a few seconds and then re-queue them and retry. * The new code doesn't do "worker booster" * Gitea's queue's handlers are light functions, the cost is only the go-routine, so it doesn't make sense to "boost" them. * The new code only use "max worker number" to limit the concurrent workers. * The new "Push" never blocks forever * Instead of creating more and more blocking goroutines, return an error is more friendly to the server and to the end user. There are more details in code comments: eg: the "Flush" problem, the strange "code.index" hanging problem, the "immediate" queue problem. Almost ready for review. TODO: * [x] add some necessary comments during review * [x] add some more tests if necessary * [x] update documents and config options * [x] test max worker / active worker * [x] re-run the CI tasks to see whether any test is flaky * [x] improve the `handleOldLengthConfiguration` to provide more friendly messages * [x] fine tune default config values (eg: length?) ## Code coverage: ![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
2023-05-08 13:49:59 +02:00
log.Register("test", testlogger.NewTestLogger)
giteaRoot := base.SetupGiteaRoot()
if giteaRoot == "" {
fmt.Println("Environment variable $GITEA_ROOT not set")
os.Exit(1)
}
giteaBinary := "gitea"
if runtime.GOOS == "windows" {
giteaBinary += ".exe"
}
setting.AppPath = path.Join(giteaRoot, giteaBinary)
if _, err := os.Stat(setting.AppPath); err != nil {
fmt.Printf("Could not find gitea binary at %s\n", setting.AppPath)
os.Exit(1)
}
giteaConf := os.Getenv("GITEA_CONF")
if giteaConf == "" {
giteaConf = path.Join(filepath.Dir(setting.AppPath), "tests/sqlite.ini")
fmt.Printf("Environment variable $GITEA_CONF not set - defaulting to %s\n", giteaConf)
}
if !path.IsAbs(giteaConf) {
setting.CustomConf = path.Join(giteaRoot, giteaConf)
} else {
setting.CustomConf = giteaConf
}
tmpDataPath, err := os.MkdirTemp("", "data")
if err != nil {
fmt.Printf("Unable to create temporary data path %v\n", err)
os.Exit(1)
}
setting.AppDataPath = tmpDataPath
setting.SetCustomPathAndConf("", "", "")
unittest.InitSettings()
if err = git.InitFull(context.Background()); err != nil {
fmt.Printf("Unable to InitFull: %v\n", err)
os.Exit(1)
}
setting.LoadDBSetting()
setting.InitLogs(true)
exitStatus := m.Run()
if err := removeAllWithRetry(setting.RepoRootPath); err != nil {
fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
}
if err := removeAllWithRetry(tmpDataPath); err != nil {
fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
}
os.Exit(exitStatus)
}