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Refactor INI package (first step) (#25024)

Browse Source 
The INI package has many bugs and quirks, and in fact it is
unmaintained.

This PR is the first step for the INI package refactoring: 

* Use Gitea's "config_provider" to provide INI access
* Deprecate the INI package by golangci.yml rule
pull/25043/head^2
wxiaoguang 1 year ago committed by GitHub
parent 7a5873335a
commit de4a21fcb4
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 219 additions and 99 deletions
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  1. 1
      .golangci.yml
  2. 12
      build/backport-locales.go
  3. 15
      contrib/environment-to-ini/environment-to-ini.go
  4. 4
      modules/repository/repo.go
  5. 4
      modules/setting/config_env.go
  6. 7
      modules/setting/config_env_test.go
  7. 196
      modules/setting/config_provider.go
  8. 55
      modules/setting/config_provider_test.go
  9. 2
      modules/setting/setting.go
  10. 9
      modules/translation/i18n/localestore.go
  11. 13
      routers/install/install.go

1
.golangci.yml
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@ -86,6 +86,7 @@ linters-settings:
- io/ioutil: "use os or io instead"
- golang.org/x/exp: "it's experimental and unreliable."
- code.gitea.io/gitea/modules/git/internal: "do not use the internal package, use AddXxx function instead"
- gopkg.in/ini.v1: "do not use the ini package, use gitea's config system instead"
issues:
max-issues-per-linter: 0

12
build/backport-locales.go
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@ -12,7 +12,7 @@ import (
"path/filepath"
"strings"
"gopkg.in/ini.v1"
"code.gitea.io/gitea/modules/setting"
)
func main() {
@ -22,14 +22,13 @@ func main() {
os.Exit(1)
}
ini.PrettyFormat = false
mustNoErr := func(err error) {
if err != nil {
panic(err)
}
}
collectInis := func(ref string) map[string]*ini.File {
inis := map[string]*ini.File{}
collectInis := func(ref string) map[string]setting.ConfigProvider {
inis := map[string]setting.ConfigProvider{}
err := filepath.WalkDir("options/locale", func(path string, d os.DirEntry, err error) error {
if err != nil {
return err
@ -37,10 +36,7 @@ func main() {
if d.IsDir() || !strings.HasSuffix(d.Name(), ".ini") {
return nil
}
cfg, err := ini.LoadSources(ini.LoadOptions{
IgnoreInlineComment: true,
UnescapeValueCommentSymbols: true,
}, path)
cfg, err := setting.NewConfigProviderForLocale(path)
mustNoErr(err)
inis[path] = cfg
fmt.Printf("collecting: %s @ %s\n", path, ref)

15
contrib/environment-to-ini/environment-to-ini.go
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@ -9,10 +9,8 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/urfave/cli"
"gopkg.in/ini.v1"
)
// EnvironmentPrefix environment variables prefixed with this represent ini values to write
@ -97,19 +95,10 @@ func runEnvironmentToIni(c *cli.Context) error {
providedWorkPath := c.String("work-path")
setting.SetCustomPathAndConf(providedCustom, providedConf, providedWorkPath)
cfg := ini.Empty()
confFileExists, err := util.IsFile(setting.CustomConf)
cfg, err := setting.NewConfigProviderFromFile(&setting.Options{CustomConf: setting.CustomConf, AllowEmpty: true})
if err != nil {
log.Fatal("Unable to check if %s is a file. Error: %v", setting.CustomConf, err)
log.Fatal("Failed to load custom conf '%s': %v", setting.CustomConf, err)
}
if confFileExists {
if err := cfg.Append(setting.CustomConf); err != nil {
log.Fatal("Failed to load custom conf '%s': %v", setting.CustomConf, err)
}
} else {
log.Warn("Custom config '%s' not found, ignore this if you're running first time", setting.CustomConf)
}
cfg.NameMapper = ini.SnackCase
prefixGitea := c.String("prefix") + "__"
suffixFile := "__FILE"

4
modules/repository/repo.go
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@ -27,7 +27,7 @@ import (
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"gopkg.in/ini.v1"
"gopkg.in/ini.v1" //nolint:depguard
)
/*
@ -241,7 +241,7 @@ func MigrateRepositoryGitData(ctx context.Context, u *user_model.User,
// cleanUpMigrateGitConfig removes mirror info which prevents "push --all".
// This also removes possible user credentials.
func cleanUpMigrateGitConfig(configPath string) error {
cfg, err := ini.Load(configPath)
cfg, err := ini.Load(configPath) // FIXME: the ini package doesn't really work with git config files
if err != nil {
return fmt.Errorf("open config file: %w", err)
}

4
modules/setting/config_env.go
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@ -10,8 +10,6 @@ import (
"strings"
"code.gitea.io/gitea/modules/log"
"gopkg.in/ini.v1"
)
const escapeRegexpString = "_0[xX](([0-9a-fA-F][0-9a-fA-F])+)_"
@ -89,7 +87,7 @@ func decodeEnvironmentKey(prefixGitea, suffixFile, envKey string) (ok bool, sect
return ok, section, key, useFileValue
}
func EnvironmentToConfig(cfg *ini.File, prefixGitea, suffixFile string, envs []string) (changed bool) {
func EnvironmentToConfig(cfg ConfigProvider, prefixGitea, suffixFile string, envs []string) (changed bool) {
for _, kv := range envs {
idx := strings.IndexByte(kv, '=')
if idx < 0 {

7
modules/setting/config_env_test.go
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@ -8,7 +8,6 @@ import (
"testing"
"github.com/stretchr/testify/assert"
"gopkg.in/ini.v1"
)
func TestDecodeEnvSectionKey(t *testing.T) {
@ -71,15 +70,15 @@ func TestDecodeEnvironmentKey(t *testing.T) {
}
func TestEnvironmentToConfig(t *testing.T) {
cfg := ini.Empty()
cfg, _ := NewConfigProviderFromData("")
changed := EnvironmentToConfig(cfg, "GITEA__", "__FILE", nil)
assert.False(t, changed)
cfg, err := ini.Load([]byte(`
cfg, err := NewConfigProviderFromData(`
[sec]
key = old
`))
`)
assert.NoError(t, err)
changed = EnvironmentToConfig(cfg, "GITEA__", "__FILE", []string{"GITEA__sec__key=new"})

196
modules/setting/config_provider.go
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@ -8,36 +8,71 @@ import (
"os"
"path/filepath"
"strings"
"time"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
ini "gopkg.in/ini.v1"
"gopkg.in/ini.v1" //nolint:depguard
)
type ConfigKey interface {
Name() string
Value() string
SetValue(v string)
In(defaultVal string, candidates []string) string
String() string
Strings(delim string) []string
MustString(defaultVal string) string
MustBool(defaultVal ...bool) bool
MustInt(defaultVal ...int) int
MustInt64(defaultVal ...int64) int64
MustDuration(defaultVal ...time.Duration) time.Duration
}
type ConfigSection interface {
Name() string
MapTo(interface{}) error
MapTo(any) error
HasKey(key string) bool
NewKey(name, value string) (*ini.Key, error)
Key(key string) *ini.Key
Keys() []*ini.Key
ChildSections() []*ini.Section
NewKey(name, value string) (ConfigKey, error)
Key(key string) ConfigKey
Keys() []ConfigKey
ChildSections() []ConfigSection
}
// ConfigProvider represents a config provider
type ConfigProvider interface {
Section(section string) ConfigSection
Sections() []ConfigSection
NewSection(name string) (ConfigSection, error)
GetSection(name string) (ConfigSection, error)
Save() error
SaveTo(filename string) error
}
type iniConfigProvider struct {
opts *Options
ini *ini.File
newFile bool // whether the file has not existed previously
}
type iniConfigSection struct {
sec *ini.Section
}
var (
_ ConfigProvider = (*iniConfigProvider)(nil)
_ ConfigSection = (*iniConfigSection)(nil)
_ ConfigKey = (*ini.Key)(nil)
)
// ConfigSectionKey only searches the keys in the given section, but it is O(n).
// ini package has a special behavior: with "[sec] a=1" and an empty "[sec.sub]",
// then in "[sec.sub]", Key()/HasKey() can always see "a=1" because it always tries parent sections.
// It returns nil if the key doesn't exist.
func ConfigSectionKey(sec ConfigSection, key string) *ini.Key {
func ConfigSectionKey(sec ConfigSection, key string) ConfigKey {
if sec == nil {
return nil
}
@ -64,7 +99,7 @@ func ConfigSectionKeyString(sec ConfigSection, key string, def ...string) string
// and the returned key is safe to be used with "MustXxx", it doesn't change the parent's values.
// Otherwise, ini.Section.Key().MustXxx would pollute the parent section's keys.
// It never returns nil.
func ConfigInheritedKey(sec ConfigSection, key string) *ini.Key {
func ConfigInheritedKey(sec ConfigSection, key string) ConfigKey {
k := sec.Key(key)
if k != nil && k.String() != "" {
newKey, _ := sec.NewKey(k.Name(), k.String())
@ -85,41 +120,64 @@ func ConfigInheritedKeyString(sec ConfigSection, key string, def ...string) stri
return ""
}
type iniFileConfigProvider struct {
opts *Options
*ini.File
newFile bool // whether the file has not existed previously
func (s *iniConfigSection) Name() string {
return s.sec.Name()
}
func (s *iniConfigSection) MapTo(v any) error {
return s.sec.MapTo(v)
}
func (s *iniConfigSection) HasKey(key string) bool {
return s.sec.HasKey(key)
}
func (s *iniConfigSection) NewKey(name, value string) (ConfigKey, error) {
return s.sec.NewKey(name, value)
}
func (s *iniConfigSection) Key(key string) ConfigKey {
return s.sec.Key(key)
}
func (s *iniConfigSection) Keys() (keys []ConfigKey) {
for _, k := range s.sec.Keys() {
keys = append(keys, k)
}
return keys
}
// NewConfigProviderFromData this function is only for testing
func (s *iniConfigSection) ChildSections() (sections []ConfigSection) {
for _, s := range s.sec.ChildSections() {
sections = append(sections, &iniConfigSection{s})
}
return sections
}
// NewConfigProviderFromData this function is mainly for testing purpose
func NewConfigProviderFromData(configContent string) (ConfigProvider, error) {
var cfg *ini.File
var err error
if configContent == "" {
cfg = ini.Empty()
} else {
cfg, err = ini.Load(strings.NewReader(configContent))
if err != nil {
return nil, err
}
cfg, err := ini.Load(strings.NewReader(configContent))
if err != nil {
return nil, err
}
cfg.NameMapper = ini.SnackCase
return &iniFileConfigProvider{
File: cfg,
return &iniConfigProvider{
ini: cfg,
newFile: true,
}, nil
}
type Options struct {
CustomConf string // the ini file path
AllowEmpty bool // whether not finding configuration files is allowed (only true for the tests)
ExtraConfig string
DisableLoadCommonSettings bool
CustomConf string // the ini file path
AllowEmpty bool // whether not finding configuration files is allowed
ExtraConfig string
DisableLoadCommonSettings bool // only used by "Init()", not used by "NewConfigProvider()"
}
// newConfigProviderFromFile load configuration from file.
// NewConfigProviderFromFile load configuration from file.
// NOTE: do not print any log except error.
func newConfigProviderFromFile(opts *Options) (*iniFileConfigProvider, error) {
func NewConfigProviderFromFile(opts *Options) (ConfigProvider, error) {
cfg := ini.Empty()
newFile := true
@ -147,61 +205,77 @@ func newConfigProviderFromFile(opts *Options) (*iniFileConfigProvider, error) {
}
cfg.NameMapper = ini.SnackCase
return &iniFileConfigProvider{
return &iniConfigProvider{
opts: opts,
File: cfg,
ini: cfg,
newFile: newFile,
}, nil
}
func (p *iniFileConfigProvider) Section(section string) ConfigSection {
return p.File.Section(section)
func (p *iniConfigProvider) Section(section string) ConfigSection {
return &iniConfigSection{sec: p.ini.Section(section)}
}
func (p *iniConfigProvider) Sections() (sections []ConfigSection) {
for _, s := range p.ini.Sections() {
sections = append(sections, &iniConfigSection{s})
}
return sections
}
func (p *iniFileConfigProvider) NewSection(name string) (ConfigSection, error) {
return p.File.NewSection(name)
func (p *iniConfigProvider) NewSection(name string) (ConfigSection, error) {
sec, err := p.ini.NewSection(name)
if err != nil {
return nil, err
}
return &iniConfigSection{sec: sec}, nil
}
func (p *iniFileConfigProvider) GetSection(name string) (ConfigSection, error) {
return p.File.GetSection(name)
func (p *iniConfigProvider) GetSection(name string) (ConfigSection, error) {
sec, err := p.ini.GetSection(name)
if err != nil {
return nil, err
}
return &iniConfigSection{sec: sec}, nil
}
// Save save the content into file
func (p *iniFileConfigProvider) Save() error {
if p.opts.CustomConf == "" {
// Save saves the content into file
func (p *iniConfigProvider) Save() error {
filename := p.opts.CustomConf
if filename == "" {
if !p.opts.AllowEmpty {
return fmt.Errorf("custom config path must not be empty")
}
return nil
}
if p.newFile {
if err := os.MkdirAll(filepath.Dir(CustomConf), os.ModePerm); err != nil {
return fmt.Errorf("failed to create '%s': %v", CustomConf, err)
if err := os.MkdirAll(filepath.Dir(filename), os.ModePerm); err != nil {
return fmt.Errorf("failed to create '%s': %v", filename, err)
}
}
if err := p.SaveTo(p.opts.CustomConf); err != nil {
return fmt.Errorf("failed to save '%s': %v", p.opts.CustomConf, err)
if err := p.ini.SaveTo(filename); err != nil {
return fmt.Errorf("failed to save '%s': %v", filename, err)
}
// Change permissions to be more restrictive
fi, err := os.Stat(CustomConf)
fi, err := os.Stat(filename)
if err != nil {
return fmt.Errorf("failed to determine current conf file permissions: %v", err)
}
if fi.Mode().Perm() > 0o600 {
if err = os.Chmod(CustomConf, 0o600); err != nil {
if err = os.Chmod(filename, 0o600); err != nil {
log.Warn("Failed changing conf file permissions to -rw-------. Consider changing them manually.")
}
}
return nil
}
// a file is an implementation ConfigProvider and other implementations are possible, i.e. from docker, k8s, …
var _ ConfigProvider = &iniFileConfigProvider{}
func (p *iniConfigProvider) SaveTo(filename string) error {
return p.ini.SaveTo(filename)
}
func mustMapSetting(rootCfg ConfigProvider, sectionName string, setting interface{}) {
func mustMapSetting(rootCfg ConfigProvider, sectionName string, setting any) {
if err := rootCfg.Section(sectionName).MapTo(setting); err != nil {
log.Fatal("Failed to map %s settings: %v", sectionName, err)
}
@ -219,3 +293,23 @@ func deprecatedSettingDB(rootCfg ConfigProvider, oldSection, oldKey string) {
log.Error("Deprecated `[%s]` `%s` present which has been copied to database table sys_setting", oldSection, oldKey)
}
}
// NewConfigProviderForLocale loads locale configuration from source and others. "string" if for a local file path, "[]byte" is for INI content
func NewConfigProviderForLocale(source any, others ...any) (ConfigProvider, error) {
iniFile, err := ini.LoadSources(ini.LoadOptions{
IgnoreInlineComment: true,
UnescapeValueCommentSymbols: true,
}, source, others...)
if err != nil {
return nil, fmt.Errorf("unable to load locale ini: %w", err)
}
iniFile.BlockMode = false
return &iniConfigProvider{
ini: iniFile,
newFile: true,
}, nil
}
func init() {
ini.PrettyFormat = false
}

55
modules/setting/config_provider_test.go
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@ -4,6 +4,7 @@
package setting
import (
"os"
"testing"
"github.com/stretchr/testify/assert"
@ -64,3 +65,57 @@ key = 123
assert.Equal(t, "", ConfigSectionKeyString(sec, "empty"))
assert.Equal(t, "def", ConfigSectionKeyString(secSub, "empty"))
}
func TestNewConfigProviderFromFile(t *testing.T) {
_, err := NewConfigProviderFromFile(&Options{CustomConf: "no-such.ini", AllowEmpty: false})
assert.ErrorContains(t, err, "unable to find configuration file")
// load non-existing file and save
testFile := t.TempDir() + "/test.ini"
testFile1 := t.TempDir() + "/test1.ini"
cfg, err := NewConfigProviderFromFile(&Options{CustomConf: testFile, AllowEmpty: true})
assert.NoError(t, err)
sec, _ := cfg.NewSection("foo")
_, _ = sec.NewKey("k1", "a")
assert.NoError(t, cfg.Save())
_, _ = sec.NewKey("k2", "b")
assert.NoError(t, cfg.SaveTo(testFile1))
bs, err := os.ReadFile(testFile)
assert.NoError(t, err)
assert.Equal(t, "[foo]\nk1=a\n", string(bs))
bs, err = os.ReadFile(testFile1)
assert.NoError(t, err)
assert.Equal(t, "[foo]\nk1=a\nk2=b\n", string(bs))
// load existing file and save
cfg, err = NewConfigProviderFromFile(&Options{CustomConf: testFile, AllowEmpty: true})
assert.NoError(t, err)
assert.Equal(t, "a", cfg.Section("foo").Key("k1").String())
sec, _ = cfg.NewSection("bar")
_, _ = sec.NewKey("k1", "b")
assert.NoError(t, cfg.Save())
bs, err = os.ReadFile(testFile)
assert.NoError(t, err)
assert.Equal(t, "[foo]\nk1=a\n\n[bar]\nk1=b\n", string(bs))
}
func TestNewConfigProviderForLocale(t *testing.T) {
// load locale from file
localeFile := t.TempDir() + "/locale.ini"
_ = os.WriteFile(localeFile, []byte(`k1=a`), 0o644)
cfg, err := NewConfigProviderForLocale(localeFile)
assert.NoError(t, err)
assert.Equal(t, "a", cfg.Section("").Key("k1").String())
// load locale from bytes
cfg, err = NewConfigProviderForLocale([]byte("k1=foo\nk2=bar"))
assert.NoError(t, err)
assert.Equal(t, "foo", cfg.Section("").Key("k1").String())
cfg, err = NewConfigProviderForLocale([]byte("k1=foo\nk2=bar"), []byte("k2=xxx"))
assert.NoError(t, err)
assert.Equal(t, "foo", cfg.Section("").Key("k1").String())
assert.Equal(t, "xxx", cfg.Section("").Key("k2").String())
}

2
modules/setting/setting.go
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@ -201,7 +201,7 @@ func Init(opts *Options) {
opts.CustomConf = CustomConf
}
var err error
CfgProvider, err = newConfigProviderFromFile(opts)
CfgProvider, err = NewConfigProviderFromFile(opts)
if err != nil {
log.Fatal("Init[%v]: %v", opts, err)
}

9
modules/translation/i18n/localestore.go
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@ -7,8 +7,7 @@ import (
"fmt"
"code.gitea.io/gitea/modules/log"
"gopkg.in/ini.v1"
"code.gitea.io/gitea/modules/setting"
)
// This file implements the static LocaleStore that will not watch for changes
@ -47,14 +46,10 @@ func (store *localeStore) AddLocaleByIni(langName, langDesc string, source, more
l := &locale{store: store, langName: langName, idxToMsgMap: make(map[int]string)}
store.localeMap[l.langName] = l
iniFile, err := ini.LoadSources(ini.LoadOptions{
IgnoreInlineComment: true,
UnescapeValueCommentSymbols: true,
}, source, moreSource)
iniFile, err := setting.NewConfigProviderForLocale(source, moreSource)
if err != nil {
return fmt.Errorf("unable to load ini: %w", err)
}
iniFile.BlockMode = false
for _, section := range iniFile.Sections() {
for _, key := range section.Keys() {

13
routers/install/install.go
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@ -35,7 +35,6 @@ import (
"code.gitea.io/gitea/services/forms"
"gitea.com/go-chi/session"
"gopkg.in/ini.v1"
)
const (
@ -371,17 +370,11 @@ func SubmitInstall(ctx *context.Context) {
}
// Save settings.
cfg := ini.Empty()
isFile, err := util.IsFile(setting.CustomConf)
cfg, err := setting.NewConfigProviderFromFile(&setting.Options{CustomConf: setting.CustomConf, AllowEmpty: true})
if err != nil {
log.Error("Unable to check if %s is a file. Error: %v", setting.CustomConf, err)
}
if isFile {
// Keeps custom settings if there is already something.
if err = cfg.Append(setting.CustomConf); err != nil {
log.Error("Failed to load custom conf '%s': %v", setting.CustomConf, err)
}
log.Error("Failed to load custom conf '%s': %v", setting.CustomConf, err)
}
cfg.Section("database").Key("DB_TYPE").SetValue(setting.Database.Type.String())
cfg.Section("database").Key("HOST").SetValue(setting.Database.Host)
cfg.Section("database").Key("NAME").SetValue(setting.Database.Name)

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