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[CHORE] Move test related function to own package

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- Go's deadcode eliminator is quite simple, if you put a public function
in a package `aa/bb` that is used only by tests, it would still be built
if package `aa/bb` was imported. This means that if such functions use
libraries relevant only to tests that those libraries would still be
be built and increase the binary size of a Go binary.
- This is also the case with Forgejo, `models/migrations/base/tests.go`
contained functions exclusively used by tests which (skipping some steps
here) imports https://github.com/ClickHouse/clickhouse-go, which is
2MiB. The `code.gitea.io/gitea/models/migrations/base` package is
imported by `cmd/doctor` and thus the code of the clickhouse library is
also built and included in the Forgejo binary, although entirely unused
and not reachable.
- This patch moves the test-related functions to their own package, so
Go's deadcode eliminator knows not to build the test-related functions
and thus reduces the size of the Forgejo binary.
- It is not possible to move this to a `_test.go` file because Go does
not allow importing functions from such files, so any test helper
function must be in a non-test package and file.
- Reduction of size (built with `TAGS="sqlite sqlite_unlock_notify" make
build`):
  - Before: 95912040 bytes (92M)
  - After: 92306888 bytes (89M)
This commit is contained in:
Gusted 2024-07-14 15:34:42 +02:00
parent 6e83c39f13
commit 138942c09e
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GPG key ID: FD821B732837125F
38 changed files with 170 additions and 276 deletions
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104
models/migrations/base/db.go
View file

@ -4,22 +4,14 @@
package base
import (
"context"
"database/sql"
"errors"
"fmt"
"os"
"path"
"reflect"
"regexp"
"strings"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"xorm.io/xorm"
"xorm.io/xorm/schemas"
@ -442,99 +434,3 @@ func ModifyColumn(x *xorm.Engine, tableName string, col *schemas.Column) error {
}
return nil
}
func removeAllWithRetry(dir string) error {
var err error
for i := 0; i < 20; i++ {
err = os.RemoveAll(dir)
if err == nil {
break
}
time.Sleep(100 * time.Millisecond)
}
return err
}
func newXORMEngine() (*xorm.Engine, error) {
if err := db.InitEngine(context.Background()); err != nil {
return nil, err
}
x := unittest.GetXORMEngine()
return x, nil
}
func deleteDB() error {
switch {
case setting.Database.Type.IsSQLite3():
if err := util.Remove(setting.Database.Path); err != nil {
return err
}
return os.MkdirAll(path.Dir(setting.Database.Path), os.ModePerm)
case setting.Database.Type.IsMySQL():
db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/",
setting.Database.User, setting.Database.Passwd, setting.Database.Host))
if err != nil {
return err
}
defer db.Close()
if _, err = db.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS %s", setting.Database.Name)); err != nil {
return err
}
if _, err = db.Exec(fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", setting.Database.Name)); err != nil {
return err
}
return nil
case setting.Database.Type.IsPostgreSQL():
db, err := sql.Open("postgres", fmt.Sprintf("postgres://%s:%s@%s/?sslmode=%s",
setting.Database.User, setting.Database.Passwd, setting.Database.Host, setting.Database.SSLMode))
if err != nil {
return err
}
defer db.Close()
if _, err = db.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS %s", setting.Database.Name)); err != nil {
return err
}
if _, err = db.Exec(fmt.Sprintf("CREATE DATABASE %s", setting.Database.Name)); err != nil {
return err
}
db.Close()
// Check if we need to setup a specific schema
if len(setting.Database.Schema) != 0 {
db, err = sql.Open("postgres", fmt.Sprintf("postgres://%s:%s@%s/%s?sslmode=%s",
setting.Database.User, setting.Database.Passwd, setting.Database.Host, setting.Database.Name, setting.Database.SSLMode))
if err != nil {
return err
}
defer db.Close()
schrows, err := db.Query(fmt.Sprintf("SELECT 1 FROM information_schema.schemata WHERE schema_name = '%s'", setting.Database.Schema))
if err != nil {
return err
}
defer schrows.Close()
if !schrows.Next() {
// Create and setup a DB schema
_, err = db.Exec(fmt.Sprintf("CREATE SCHEMA %s", setting.Database.Schema))
if err != nil {
return err
}
}
// Make the user's default search path the created schema; this will affect new connections
_, err = db.Exec(fmt.Sprintf(`ALTER USER "%s" SET search_path = %s`, setting.Database.User, setting.Database.Schema))
if err != nil {
return err
}
return nil
}
}
return nil
}