forgejo/models/unittest/testdb.go
wxiaoguang 061b68e995
Refactor path & config system (#25330) (#25416)
Backport #25330

# The problem

There were many "path tricks":

* By default, Gitea uses its program directory as its work path
* Gitea tries to use the "work path" to guess its "custom path" and
"custom conf (app.ini)"
* Users might want to use other directories as work path
* The non-default work path should be passed to Gitea by GITEA_WORK_DIR
or "--work-path"
* But some Gitea processes are started without these values
    * The "serv" process started by OpenSSH server
    * The CLI sub-commands started by site admin
* The paths are guessed by SetCustomPathAndConf again and again
* The default values of "work path / custom path / custom conf" can be
changed when compiling

# The solution

* Use `InitWorkPathAndCommonConfig` to handle these path tricks, and use
test code to cover its behaviors.
* When Gitea's web server runs, write the WORK_PATH to "app.ini", this
value must be the most correct one, because if this value is not right,
users would find that the web UI doesn't work and then they should be
able to fix it.
* Then all other sub-commands can use the WORK_PATH in app.ini to
initialize their paths.
* By the way, when Gitea starts for git protocol, it shouldn't output
any log, otherwise the git protocol gets broken and client blocks
forever.

The "work path" priority is: WORK_PATH in app.ini > cmd arg --work-path
> env var GITEA_WORK_DIR > builtin default

The "app.ini" searching order is: cmd arg --config > cmd arg "work path
/ custom path" > env var "work path / custom path" > builtin default


## ⚠️ BREAKING

If your instance's "work path / custom path / custom conf" doesn't meet
the requirements (eg: work path must be absolute), Gitea will report a
fatal error and exit. You need to set these values according to the
error log.
2023-06-22 16:27:18 +00:00

256 lines
8.2 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package unittest
import (
"context"
"fmt"
"log"
"os"
"path/filepath"
"strings"
"testing"
"code.gitea.io/gitea/models/db"
system_model "code.gitea.io/gitea/models/system"
"code.gitea.io/gitea/modules/auth/password/hash"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
"xorm.io/xorm"
"xorm.io/xorm/names"
)
// giteaRoot a path to the gitea root
var (
giteaRoot string
fixturesDir string
)
// FixturesDir returns the fixture directory
func FixturesDir() string {
return fixturesDir
}
func fatalTestError(fmtStr string, args ...interface{}) {
_, _ = fmt.Fprintf(os.Stderr, fmtStr, args...)
os.Exit(1)
}
// InitSettings initializes config provider and load common settings for tests
func InitSettings(extraConfigs ...string) {
if setting.CustomConf == "" {
setting.CustomConf = filepath.Join(setting.CustomPath, "conf/app-unittest-tmp.ini")
_ = os.Remove(setting.CustomConf)
}
setting.InitCfgProvider(setting.CustomConf, strings.Join(extraConfigs, "\n"))
setting.LoadCommonSettings()
if err := setting.PrepareAppDataPath(); err != nil {
log.Fatalf("Can not prepare APP_DATA_PATH: %v", err)
}
// register the dummy hash algorithm function used in the test fixtures
_ = hash.Register("dummy", hash.NewDummyHasher)
setting.PasswordHashAlgo, _ = hash.SetDefaultPasswordHashAlgorithm("dummy")
}
// TestOptions represents test options
type TestOptions struct {
GiteaRootPath string
FixtureFiles []string
SetUp func() error // SetUp will be executed before all tests in this package
TearDown func() error // TearDown will be executed after all tests in this package
}
// MainTest a reusable TestMain(..) function for unit tests that need to use a
// test database. Creates the test database, and sets necessary settings.
func MainTest(m *testing.M, testOpts *TestOptions) {
setting.CustomPath = filepath.Join(testOpts.GiteaRootPath, "custom")
InitSettings()
var err error
giteaRoot = testOpts.GiteaRootPath
fixturesDir = filepath.Join(testOpts.GiteaRootPath, "models", "fixtures")
var opts FixturesOptions
if len(testOpts.FixtureFiles) == 0 {
opts.Dir = fixturesDir
} else {
for _, f := range testOpts.FixtureFiles {
if len(f) != 0 {
opts.Files = append(opts.Files, filepath.Join(fixturesDir, f))
}
}
}
if err = CreateTestEngine(opts); err != nil {
fatalTestError("Error creating test engine: %v\n", err)
}
setting.AppURL = "https://try.gitea.io/"
setting.RunUser = "runuser"
setting.SSH.User = "sshuser"
setting.SSH.BuiltinServerUser = "builtinuser"
setting.SSH.Port = 3000
setting.SSH.Domain = "try.gitea.io"
setting.Database.Type = "sqlite3"
setting.Repository.DefaultBranch = "master" // many test code still assume that default branch is called "master"
repoRootPath, err := os.MkdirTemp(os.TempDir(), "repos")
if err != nil {
fatalTestError("TempDir: %v\n", err)
}
setting.RepoRootPath = repoRootPath
appDataPath, err := os.MkdirTemp(os.TempDir(), "appdata")
if err != nil {
fatalTestError("TempDir: %v\n", err)
}
setting.AppDataPath = appDataPath
setting.AppWorkPath = testOpts.GiteaRootPath
setting.StaticRootPath = testOpts.GiteaRootPath
setting.GravatarSource = "https://secure.gravatar.com/avatar/"
setting.Attachment.Storage.Path = filepath.Join(setting.AppDataPath, "attachments")
setting.LFS.Storage.Path = filepath.Join(setting.AppDataPath, "lfs")
setting.Avatar.Storage.Path = filepath.Join(setting.AppDataPath, "avatars")
setting.RepoAvatar.Storage.Path = filepath.Join(setting.AppDataPath, "repo-avatars")
setting.RepoArchive.Storage.Path = filepath.Join(setting.AppDataPath, "repo-archive")
setting.Packages.Storage.Path = filepath.Join(setting.AppDataPath, "packages")
setting.Actions.LogStorage.Path = filepath.Join(setting.AppDataPath, "actions_log")
setting.Git.HomePath = filepath.Join(setting.AppDataPath, "home")
setting.IncomingEmail.ReplyToAddress = "incoming+%{token}@localhost"
if err = storage.Init(); err != nil {
fatalTestError("storage.Init: %v\n", err)
}
if err = system_model.Init(db.DefaultContext); err != nil {
fatalTestError("models.Init: %v\n", err)
}
if err = util.RemoveAll(repoRootPath); err != nil {
fatalTestError("util.RemoveAll: %v\n", err)
}
if err = CopyDir(filepath.Join(testOpts.GiteaRootPath, "tests", "gitea-repositories-meta"), setting.RepoRootPath); err != nil {
fatalTestError("util.CopyDir: %v\n", err)
}
if err = git.InitFull(context.Background()); err != nil {
fatalTestError("git.Init: %v\n", err)
}
ownerDirs, err := os.ReadDir(setting.RepoRootPath)
if err != nil {
fatalTestError("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 {
fatalTestError("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 testOpts.SetUp != nil {
if err := testOpts.SetUp(); err != nil {
fatalTestError("set up failed: %v\n", err)
}
}
exitStatus := m.Run()
if testOpts.TearDown != nil {
if err := testOpts.TearDown(); err != nil {
fatalTestError("tear down failed: %v\n", err)
}
}
if err = util.RemoveAll(repoRootPath); err != nil {
fatalTestError("util.RemoveAll: %v\n", err)
}
if err = util.RemoveAll(appDataPath); err != nil {
fatalTestError("util.RemoveAll: %v\n", err)
}
os.Exit(exitStatus)
}
// FixturesOptions fixtures needs to be loaded options
type FixturesOptions struct {
Dir string
Files []string
}
// CreateTestEngine creates a memory database and loads the fixture data from fixturesDir
func CreateTestEngine(opts FixturesOptions) error {
x, err := xorm.NewEngine("sqlite3", "file::memory:?cache=shared&_txlock=immediate")
if err != nil {
if strings.Contains(err.Error(), "unknown driver") {
return fmt.Errorf(`sqlite3 requires: import _ "github.com/mattn/go-sqlite3" or -tags sqlite,sqlite_unlock_notify%s%w`, "\n", err)
}
return err
}
x.SetMapper(names.GonicMapper{})
db.SetDefaultEngine(context.Background(), x)
if err = db.SyncAllTables(); err != nil {
return err
}
switch os.Getenv("GITEA_UNIT_TESTS_LOG_SQL") {
case "true", "1":
x.ShowSQL(true)
}
return InitFixtures(opts)
}
// PrepareTestDatabase load test fixtures into test database
func PrepareTestDatabase() error {
return LoadFixtures()
}
// PrepareTestEnv prepares the environment for unit tests. Can only be called
// by tests that use the above MainTest(..) function.
func PrepareTestEnv(t testing.TB) {
assert.NoError(t, PrepareTestDatabase())
assert.NoError(t, util.RemoveAll(setting.RepoRootPath))
metaPath := filepath.Join(giteaRoot, "tests", "gitea-repositories-meta")
assert.NoError(t, CopyDir(metaPath, setting.RepoRootPath))
ownerDirs, err := os.ReadDir(setting.RepoRootPath)
assert.NoError(t, err)
for _, ownerDir := range ownerDirs {
if !ownerDir.Type().IsDir() {
continue
}
repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
assert.NoError(t, 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)
}
}
base.SetupGiteaRoot() // Makes sure GITEA_ROOT is set
}