feat:(logging) Added Log Format provision

go/cmd/dolt/commands/sqlserver/command_line_config.go

@@ -36,6 +36,7 @@ type commandLineServerConfig struct {
 	timeout                 uint64
 	readOnly                bool
 	logLevel                servercfg.LogLevel
+	logFormat				servercfg.LogFormat
 	dataDir                 string
 	cfgDir                  string
 	autoCommit              bool
@@ -68,6 +69,7 @@ func DefaultCommandLineServerConfig() *commandLineServerConfig {
 		timeout:                 servercfg.DefaultTimeout,
 		readOnly:                servercfg.DefaultReadOnly,
 		logLevel:                servercfg.DefaultLogLevel,
+		logFormat:               servercfg.DefaultLogFormat,
 		autoCommit:              servercfg.DefaultAutoCommit,
 		maxConnections:          servercfg.DefaultMaxConnections,
 		dataDir:                 servercfg.DefaultDataDir,
@@ -143,6 +145,9 @@ func NewCommandLineConfig(creds *cli.UserPassword, apr *argparser.ArgParseResult
 	if logLevel, ok := apr.GetValue(logLevelFlag); ok {
 		config.withLogLevel(servercfg.LogLevel(strings.ToLower(logLevel)))
 	}
+	if logFormat, ok := apr.GetValue(logFormatFlag); ok {
+		config.withLogFormat(servercfg.LogFormat(strings.ToLower(logFormat)))
+	}	
 
 	if dataDir, ok := apr.GetValue(commands.MultiDBDirFlag); ok {
 		config.withDataDir(dataDir)
@@ -232,6 +237,11 @@ func (cfg *commandLineServerConfig) LogLevel() servercfg.LogLevel {
 	return cfg.logLevel
 }
 
+// LogFormat returns the format of logging that the server will use.
+func (cfg *commandLineServerConfig) LogFormat() servercfg.LogFormat {
+	return cfg.logFormat
+}
+
 // AutoCommit defines the value of the @@autocommit session variable used on every connection
 func (cfg *commandLineServerConfig) AutoCommit() bool {
 	return cfg.autoCommit
@@ -399,6 +409,12 @@ func (cfg *commandLineServerConfig) withLogLevel(loglevel servercfg.LogLevel) *c
 	cfg.valuesSet[servercfg.LogLevelKey] = struct{}{}
 	return cfg
 }
+// withLogFormat updates the log format and returns the called `*commandLineServerConfig`, which is useful for chaining calls.
+func (cfg *commandLineServerConfig) withLogFormat(logformat servercfg.LogFormat) *commandLineServerConfig {
+	cfg.logFormat = logformat
+	cfg.valuesSet[servercfg.LogFormatKey] = struct{}{}
+	return cfg
+}
 
 // withMaxConnections updates the maximum number of concurrent connections and returns the called
 // `*commandLineServerConfig`, which is useful for chaining calls.

go/cmd/dolt/commands/sqlserver/server.go

@@ -123,6 +123,13 @@ func ConfigureServices(
 				return err
 			}
 			logrus.SetLevel(level)
+			format := strings.ToLower(fmt.Sprintf("%v", serverConfig.LogFormat())) 
+			switch format {
+			case "json":
+				logrus.SetFormatter(&logrus.JSONFormatter{})
+			default:
+				logrus.SetFormatter(&logrus.TextFormatter{})
+			}
 
 			sql.SystemVariables.AddSystemVariables([]sql.SystemVariable{
 				&sql.MysqlSystemVariable{

go/cmd/dolt/commands/sqlserver/server_test.go

@@ -203,6 +203,8 @@ func TestServerGoodParams(t *testing.T) {
 		DefaultCommandLineServerConfig().withLogLevel(servercfg.LogLevel_Info).WithPort(15408),
 		DefaultCommandLineServerConfig().withReadOnly(true).WithPort(15409),
 		DefaultCommandLineServerConfig().withUser("testusernamE").withPassword("hunter2").withTimeout(4).WithPort(15410),
+		DefaultCommandLineServerConfig().withLogFormat(servercfg.LogFormat_Text).WithPort(15411),
+		DefaultCommandLineServerConfig().withLogFormat(servercfg.LogFormat_JSON).WithPort(15412),
 		DefaultCommandLineServerConfig().withAllowCleartextPasswords(true),
 	}
 
@@ -552,6 +554,8 @@ func TestGenerateYamlConfig(t *testing.T) {
 
 # log_level: info
 
+# log_format: text
+
 # max_logged_query_len: 0
 
 # encode_logged_query: false

go/cmd/dolt/commands/sqlserver/sqlserver.go

@@ -43,6 +43,7 @@ const (
 	timeoutFlag                 = "timeout"
 	readonlyFlag                = "readonly"
 	logLevelFlag                = "loglevel"
+	logFormatFlag               = "logformat"
 	noAutoCommitFlag            = "no-auto-commit"
 	configFileFlag              = "config"
 	queryParallelismFlag        = "query-parallelism"
@@ -167,6 +168,7 @@ func (cmd SqlServerCmd) ArgParserWithName(name string) *argparser.ArgParser {
 	ap.SupportsInt(timeoutFlag, "t", "connection timeout", fmt.Sprintf("Defines the timeout, in seconds, used for connections\nA value of `0` represents an infinite timeout. Defaults to `%v`.", serverConfig.ReadTimeout()))
 	ap.SupportsFlag(readonlyFlag, "r", "Disable modification of the database.")
 	ap.SupportsString(logLevelFlag, "l", "log level", fmt.Sprintf("Defines the level of logging provided\nOptions are: `trace`, `debug`, `info`, `warning`, `error`, `fatal`. Defaults to `%v`.", serverConfig.LogLevel()))
+	ap.SupportsString(logFormatFlag, "f", "log format", fmt.Sprintf("Defines the level of format provided\nOptions are: `text`, `json`. Defaults to `%v`.", serverConfig.LogFormat()))
 	ap.SupportsString(commands.DataDirFlag, "", "directory", "Defines a directory to find databases to serve. Defaults to the current directory.")
 	ap.SupportsString(commands.MultiDBDirFlag, "", "directory", "Deprecated, use `--data-dir` instead.")
 	ap.SupportsString(commands.CfgDirFlag, "", "directory", "Defines a directory that contains non-database storage for dolt. Defaults to `$data-dir/.doltcfg`. Will be created automatically as needed.")

go/libraries/doltcore/servercfg/serverconfig.go

@@ -39,6 +39,13 @@ const (
 	LogLevel_Panic   LogLevel = "panic"
 )
 
+type LogFormat string
+
+const (
+	LogFormat_Text LogFormat = "text"
+	LogFormat_JSON LogFormat = "json"
+)
+
 const (
 	DefaultHost                    = "localhost"
 	DefaultPort                    = 3306
@@ -47,6 +54,7 @@ const (
 	DefaultTimeout                 = 8 * 60 * 60 * 1000 // 8 hours, same as MySQL
 	DefaultReadOnly                = false
 	DefaultLogLevel                = LogLevel_Info
+	DefaultLogFormat               = LogFormat_Text
 	DefaultAutoCommit              = true
 	DefaultAutoGCBehaviorEnable    = false
 	DefaultDoltTransactionCommit   = false
@@ -138,6 +146,8 @@ type ServerConfig interface {
 	ReadOnly() bool
 	// LogLevel returns the level of logging that the server will use.
 	LogLevel() LogLevel
+	// LogFormat returns the format of logging that the server will use.
+	LogFormat() LogFormat
 	// Autocommit defines the value of the @@autocommit session variable used on every connection
 	AutoCommit() bool
 	// DoltTransactionCommit defines the value of the @@dolt_transaction_commit session variable that enables Dolt
@@ -211,6 +221,7 @@ func DefaultServerConfig() ServerConfig {
 func defaultServerConfigYAML() *YAMLConfig {
 	return &YAMLConfig{
 		LogLevelStr:       ptr(string(DefaultLogLevel)),
+		LogFormatStr:      ptr(string(DefaultLogFormat)),
 		MaxQueryLenInLogs: ptr(DefaultMaxLoggedQueryLen),
 		EncodeLoggedQuery: ptr(DefaultEncodeLoggedQuery),
 		BehaviorConfig: BehaviorYAMLConfig{
@@ -270,6 +281,10 @@ func ValidateConfig(config ServerConfig) error {
 	if config.LogLevel().String() == "unknown" {
 		return fmt.Errorf("loglevel is invalid: %v\n", string(config.LogLevel()))
 	}
+	if strings.ToLower(fmt.Sprintf("%v", config.LogFormat())) != "text" && 
+		strings.ToLower(fmt.Sprintf("%v", config.LogFormat())) != "json" {
+	 return fmt.Errorf("logformat is invalid: %v\n", config.LogFormat())
+ 	}
 	if config.RequireSecureTransport() && config.TLSCert() == "" && config.TLSKey() == "" {
 		return fmt.Errorf("require_secure_transport can only be `true` when a tls_key and tls_cert are provided.")
 	}
@@ -285,6 +300,7 @@ const (
 	WriteTimeoutKey                 = "net_write_timeout"
 	ReadOnlyKey                     = "read_only"
 	LogLevelKey                     = "log_level"
+	LogFormatKey                    = "log_format"
 	AutoCommitKey                   = "autocommit"
 	DoltTransactionCommitKey        = "dolt_transaction_commit"
 	DataDirKey                      = "data_dir"

go/libraries/doltcore/servercfg/yaml_config.go

@@ -127,6 +127,7 @@ type UserSessionVars struct {
 // YAMLConfig is a ServerConfig implementation which is read from a yaml file
 type YAMLConfig struct {
 	LogLevelStr       *string                `yaml:"log_level,omitempty"`
+	LogFormatStr      *string                `yaml:"log_format,omitempty"`
 	MaxQueryLenInLogs *int                   `yaml:"max_logged_query_len,omitempty"`
 	EncodeLoggedQuery *bool                  `yaml:"encode_logged_query,omitempty"`
 	BehaviorConfig    BehaviorYAMLConfig     `yaml:"behavior,omitempty"`
@@ -181,6 +182,7 @@ func ServerConfigAsYAMLConfig(cfg ServerConfig) *YAMLConfig {
 	autoGCBehavior := toAutoGCBehaviorYAML(cfg.AutoGCBehavior())
 	return &YAMLConfig{
 		LogLevelStr:       ptr(string(cfg.LogLevel())),
+		LogFormatStr:      ptr(string(cfg.LogFormat())),
 		MaxQueryLenInLogs: nillableIntPtr(cfg.MaxLoggedQueryLen()),
 		EncodeLoggedQuery: nillableBoolPtr(cfg.ShouldEncodeLoggedQuery()),
 		BehaviorConfig: BehaviorYAMLConfig{
@@ -251,6 +253,7 @@ func ServerConfigSetValuesAsYAMLConfig(cfg ServerConfig) *YAMLConfig {
 
 	return &YAMLConfig{
 		LogLevelStr:       zeroIf(ptr(string(cfg.LogLevel())), !cfg.ValueSet(LogLevelKey)),
+		LogFormatStr: 	   zeroIf(ptr(string(cfg.LogFormat())), !cfg.ValueSet(LogFormatKey)),
 		MaxQueryLenInLogs: zeroIf(ptr(cfg.MaxLoggedQueryLen()), !cfg.ValueSet(MaxLoggedQueryLenKey)),
 		EncodeLoggedQuery: zeroIf(ptr(cfg.ShouldEncodeLoggedQuery()), !cfg.ValueSet(ShouldEncodeLoggedQueryKey)),
 		BehaviorConfig: BehaviorYAMLConfig{
@@ -452,6 +455,9 @@ func (cfg YAMLConfig) withDefaultsFilledIn() YAMLConfig {
 	if withDefaults.LogLevelStr == nil {
 		withDefaults.LogLevelStr = defaults.LogLevelStr
 	}
+	if withDefaults.LogFormatStr == nil {
+		withDefaults.LogFormatStr = defaults.LogFormatStr
+	}
 	if withDefaults.MaxQueryLenInLogs == nil {
 		withDefaults.MaxQueryLenInLogs = defaults.MaxQueryLenInLogs
 	}
@@ -631,6 +637,14 @@ func (cfg YAMLConfig) LogLevel() LogLevel {
 
 	return LogLevel(*cfg.LogLevelStr)
 }
+// LogFormatStr returns the log format that the server will use.
+func (cfg YAMLConfig) LogFormat() LogFormat {
+	if cfg.LogFormatStr == nil {
+		return DefaultLogFormat
+	}
+
+	return LogFormat(*cfg.LogFormatStr)
+}
 
 // MaxConnections returns the maximum number of simultaneous connections the server will allow.  The default is 1
 func (cfg YAMLConfig) MaxConnections() uint64 {

go/libraries/doltcore/servercfg/yaml_config_test.go

@@ -27,7 +27,7 @@ var trueValue = true
 func TestUnmarshall(t *testing.T) {
 	testStr := `
 log_level: info
-
+log_format: text
 behavior:
     read_only: false
     autocommit: true
@@ -329,6 +329,7 @@ func TestYAMLConfigDefaults(t *testing.T) {
 	assert.Equal(t, uint64(DefaultTimeout), cfg.ReadTimeout())
 	assert.Equal(t, DefaultReadOnly, cfg.ReadOnly())
 	assert.Equal(t, DefaultLogLevel, cfg.LogLevel())
+	assert.Equal(t, DefaultLogFormat, cfg.LogFormat())
 	assert.Equal(t, DefaultAutoCommit, cfg.AutoCommit())
 	assert.Equal(t, DefaultDoltTransactionCommit, cfg.DoltTransactionCommit())
 	assert.Equal(t, uint64(DefaultMaxConnections), cfg.MaxConnections())

integration-tests/bats/sql-server.bats

@@ -145,6 +145,34 @@ EOF
     dolt sql -q "show databases;"
     stop_sql_server
 }
+@test "sql-server: logformats are case insensitive" {
+    # assert that logformat on command line is not case sensitive
+    cd repo1
+    PORT=$( definePORT )
+    dolt sql-server --logformat jSon --port=$PORT --socket "dolt.$PORT.sock" > log.txt 2>&1 &
+    SERVER_PID=$!
+    wait_for_connection $PORT 8500 
+    dolt sql -q "show databases;"
+    stop_sql_server
+
+     # Assert that log is in JSON format (checking if logs contain `{...}`)
+    grep -q '^{.*}$' log.txt
+    # assert that logformat in yaml config is not case sensitive
+    cat >config.yml <<EOF
+log_format: teXt
+behavior:
+  disable_client_multi_statements: true
+listener:
+  host: "0.0.0.0"
+  port: $PORT
+EOF
+    dolt sql-server --config ./config.yml --socket "dolt.$PORT.sock" &
+    SERVER_PID=$!
+    wait_for_connection $PORT 8500
+    dolt sql -q "show databases;"
+    stop_sql_server
+}
+
 
 @test "sql-server: server assumes existing user" {
     cd repo1