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b2/s3: Move config validation from ApplyEnvironment to Open/Create

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Conceptually the backend configuration should be validated when creating
or opening the backend, but not when filling in information from
environment variables into the configuration.
This commit is contained in:
Michael Eischer 2023-06-08 15:28:07 +02:00
parent 19ac12d95b
commit 3a3cf608f5
12 changed files with 23 additions and 45 deletions
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4
cmd/restic/global.go
View File

@ -550,9 +550,7 @@ func OpenRepository(ctx context.Context, opts GlobalOptions) (*repository.Reposi
func parseConfig(loc location.Location, opts options.Options) (interface{}, error) {
cfg := loc.Config
if cfg, ok := cfg.(restic.ApplyEnvironmenter); ok {
if err := cfg.ApplyEnvironment(""); err != nil {
return nil, err
}
cfg.ApplyEnvironment("")
}
// only apply options for a particular backend here

6
internal/backend/azure/azure_test.go
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@ -35,11 +35,7 @@ func newAzureTestSuite(t testing.TB) *test.Suite[azure.Config] {
return nil, err
}
err = cfg.ApplyEnvironment("RESTIC_TEST_")
if err != nil {
return nil, err
}
cfg.ApplyEnvironment("RESTIC_TEST_")
cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
return cfg, nil
},

3
internal/backend/azure/config.go
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@ -59,7 +59,7 @@ func ParseConfig(s string) (*Config, error) {
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
if cfg.AccountName == "" {
cfg.AccountName = os.Getenv(prefix + "AZURE_ACCOUNT_NAME")
}
@ -71,5 +71,4 @@ func (cfg *Config) ApplyEnvironment(prefix string) error {
if cfg.AccountSAS.String() == "" {
cfg.AccountSAS = options.NewSecretString(os.Getenv(prefix + "AZURE_ACCOUNT_SAS"))
}
return nil
}

7
internal/backend/b2/b2.go
View File

@ -58,6 +58,13 @@ func (s *sniffingRoundTripper) RoundTrip(req *http.Request) (*http.Response, err
}
func newClient(ctx context.Context, cfg Config, rt http.RoundTripper) (*b2.Client, error) {
if cfg.AccountID == "" {
return nil, errors.Fatalf("unable to open B2 backend: Account ID ($B2_ACCOUNT_ID) is empty")
}
if cfg.Key.String() == "" {
return nil, errors.Fatalf("unable to open B2 backend: Key ($B2_ACCOUNT_KEY) is empty")
}
sniffer := &sniffingRoundTripper{RoundTripper: rt}
opts := []b2.ClientOption{b2.Transport(sniffer)}

6
internal/backend/b2/b2_test.go
View File

@ -35,11 +35,7 @@ func newB2TestSuite(t testing.TB) *test.Suite[b2.Config] {
return nil, err
}
err = cfg.ApplyEnvironment("RESTIC_TEST_")
if err != nil {
return nil, err
}
cfg.ApplyEnvironment("RESTIC_TEST_")
cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
return cfg, nil
},

12
internal/backend/b2/config.go
View File

@ -85,21 +85,11 @@ func ParseConfig(s string) (*Config, error) {
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
if cfg.AccountID == "" {
cfg.AccountID = os.Getenv(prefix + "B2_ACCOUNT_ID")
}
if cfg.AccountID == "" {
return errors.Fatalf("unable to open B2 backend: Account ID ($B2_ACCOUNT_ID) is empty")
}
if cfg.Key.String() == "" {
cfg.Key = options.NewSecretString(os.Getenv(prefix + "B2_ACCOUNT_KEY"))
}
if cfg.Key.String() == "" {
return errors.Fatalf("unable to open B2 backend: Key ($B2_ACCOUNT_KEY) is empty")
}
return nil
}

3
internal/backend/gs/config.go
View File

@ -62,9 +62,8 @@ func ParseConfig(s string) (*Config, error) {
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
if cfg.ProjectID == "" {
cfg.ProjectID = os.Getenv(prefix + "GOOGLE_PROJECT_ID")
}
return nil
}

12
internal/backend/s3/config.go
View File

@ -97,24 +97,14 @@ func createConfig(endpoint, bucket, prefix string, useHTTP bool) (*Config, error
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
if cfg.KeyID == "" {
cfg.KeyID = os.Getenv(prefix + "AWS_ACCESS_KEY_ID")
}
if cfg.Secret.String() == "" {
cfg.Secret = options.NewSecretString(os.Getenv(prefix + "AWS_SECRET_ACCESS_KEY"))
}
if cfg.KeyID == "" && cfg.Secret.String() != "" {
return errors.Fatalf("unable to open S3 backend: Key ID ($AWS_ACCESS_KEY_ID) is empty")
} else if cfg.KeyID != "" && cfg.Secret.String() == "" {
return errors.Fatalf("unable to open S3 backend: Secret ($AWS_SECRET_ACCESS_KEY) is empty")
}
if cfg.Region == "" {
cfg.Region = os.Getenv(prefix + "AWS_DEFAULT_REGION")
}
return nil
}

6
internal/backend/s3/s3.go
View File

@ -41,6 +41,12 @@ const defaultLayout = "default"
func open(ctx context.Context, cfg Config, rt http.RoundTripper) (*Backend, error) {
debug.Log("open, config %#v", cfg)
if cfg.KeyID == "" && cfg.Secret.String() != "" {
return nil, errors.Fatalf("unable to open S3 backend: Key ID ($AWS_ACCESS_KEY_ID) is empty")
} else if cfg.KeyID != "" && cfg.Secret.String() == "" {
return nil, errors.Fatalf("unable to open S3 backend: Secret ($AWS_SECRET_ACCESS_KEY) is empty")
}
if cfg.MaxRetries > 0 {
minio.MaxRetry = int(cfg.MaxRetries)
}

3
internal/backend/swift/config.go
View File

@ -77,7 +77,7 @@ func ParseConfig(s string) (*Config, error) {
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
for _, val := range []struct {
s *string
env string
@ -130,5 +130,4 @@ func (cfg *Config) ApplyEnvironment(prefix string) error {
*val.s = options.NewSecretString(os.Getenv(val.env))
}
}
return nil
}

4
internal/backend/swift/swift_test.go
View File

@ -48,9 +48,7 @@ func newSwiftTestSuite(t testing.TB) *test.Suite[swift.Config] {
return nil, err
}
if err = cfg.ApplyEnvironment("RESTIC_TEST_"); err != nil {
return nil, err
}
cfg.ApplyEnvironment("RESTIC_TEST_")
cfg.Prefix += fmt.Sprintf("/test-%d", time.Now().UnixNano())
t.Logf("using prefix %v", cfg.Prefix)
return cfg, nil

2
internal/restic/backend.go
View File

@ -83,5 +83,5 @@ type FileInfo struct {
// ApplyEnvironmenter fills in a backend configuration from the environment
type ApplyEnvironmenter interface {
ApplyEnvironment(prefix string) error
ApplyEnvironment(prefix string)
}