func()

in aws/session/shared_config.go [380:479]
73 lines of code
12 McCabe index (conditional complexity)

func (cfg *sharedConfig) setFromIniFile(profile string, file sharedConfigFile, exOpts bool) error {
	section, ok := file.IniData.GetSection(profile)
	if !ok {
		// Fallback to to alternate profile name: profile <name>
		section, ok = file.IniData.GetSection(fmt.Sprintf("profile %s", profile))
		if !ok {
			return SharedConfigProfileNotExistsError{Profile: profile, Err: nil}
		}
	}

	if exOpts {
		// Assume Role Parameters
		updateString(&cfg.RoleARN, section, roleArnKey)
		updateString(&cfg.ExternalID, section, externalIDKey)
		updateString(&cfg.MFASerial, section, mfaSerialKey)
		updateString(&cfg.RoleSessionName, section, roleSessionNameKey)
		updateString(&cfg.SourceProfileName, section, sourceProfileKey)
		updateString(&cfg.CredentialSource, section, credentialSourceKey)
		updateString(&cfg.Region, section, regionKey)
		updateString(&cfg.CustomCABundle, section, customCABundleKey)

		// we're retaining a behavioral quirk with this field that existed before
		// the removal of literal parsing for (aws-sdk-go-v2/#2276):
		//   - if the key is missing, the config field will not be set
		//   - if the key is set to a non-numeric, the config field will be set to 0
		if section.Has(roleDurationSecondsKey) {
			var d time.Duration
			if v, ok := section.Int(roleDurationSecondsKey); ok {
				d = time.Duration(v) * time.Second
			}
			cfg.AssumeRoleDuration = &d
		}

		if v := section.String(stsRegionalEndpointSharedKey); len(v) != 0 {
			sre, err := endpoints.GetSTSRegionalEndpoint(v)
			if err != nil {
				return fmt.Errorf("failed to load %s from shared config, %s, %v",
					stsRegionalEndpointSharedKey, file.Filename, err)
			}
			cfg.STSRegionalEndpoint = sre
		}

		if v := section.String(s3UsEast1RegionalSharedKey); len(v) != 0 {
			sre, err := endpoints.GetS3UsEast1RegionalEndpoint(v)
			if err != nil {
				return fmt.Errorf("failed to load %s from shared config, %s, %v",
					s3UsEast1RegionalSharedKey, file.Filename, err)
			}
			cfg.S3UsEast1RegionalEndpoint = sre
		}

		// AWS Single Sign-On (AWS SSO)
		// SSO session options
		updateString(&cfg.SSOSessionName, section, ssoSessionNameKey)

		// AWS Single Sign-On (AWS SSO)
		updateString(&cfg.SSOAccountID, section, ssoAccountIDKey)
		updateString(&cfg.SSORegion, section, ssoRegionKey)
		updateString(&cfg.SSORoleName, section, ssoRoleNameKey)
		updateString(&cfg.SSOStartURL, section, ssoStartURL)

		if err := updateEC2MetadataServiceEndpointMode(&cfg.EC2IMDSEndpointMode, section, ec2MetadataServiceEndpointModeKey); err != nil {
			return fmt.Errorf("failed to load %s from shared config, %s, %v",
				ec2MetadataServiceEndpointModeKey, file.Filename, err)
		}
		updateString(&cfg.EC2IMDSEndpoint, section, ec2MetadataServiceEndpointKey)
		updateBoolPtr(&cfg.EC2IMDSv1Disabled, section, ec2MetadataV1DisabledKey)

		updateUseDualStackEndpoint(&cfg.UseDualStackEndpoint, section, useDualStackEndpoint)

		updateUseFIPSEndpoint(&cfg.UseFIPSEndpoint, section, useFIPSEndpointKey)
	}

	updateString(&cfg.CredentialProcess, section, credentialProcessKey)
	updateString(&cfg.WebIdentityTokenFile, section, webIdentityTokenFileKey)

	// Shared Credentials
	creds := credentials.Value{
		AccessKeyID:     section.String(accessKeyIDKey),
		SecretAccessKey: section.String(secretAccessKey),
		SessionToken:    section.String(sessionTokenKey),
		ProviderName:    fmt.Sprintf("SharedConfigCredentials: %s", file.Filename),
	}
	if creds.HasKeys() {
		cfg.Creds = creds
	}

	// Endpoint discovery
	updateBoolPtr(&cfg.EnableEndpointDiscovery, section, enableEndpointDiscoveryKey)

	// CSM options
	updateBoolPtr(&cfg.CSMEnabled, section, csmEnabledKey)
	updateString(&cfg.CSMHost, section, csmHostKey)
	updateString(&cfg.CSMPort, section, csmPortKey)
	updateString(&cfg.CSMClientID, section, csmClientIDKey)

	updateBool(&cfg.S3UseARNRegion, section, s3UseARNRegionKey)

	return nil
}