Liuliu/log-graph

go/cmd/dolt/cli/arg_parser_helpers.go

@@ -280,6 +280,7 @@ func CreateLogArgParser(isTableFunction bool) *argparser.ArgParser {
 	} else {
 		ap.SupportsFlag(OneLineFlag, "", "Shows logs in a compact format.")
 		ap.SupportsFlag(StatFlag, "", "Shows the diffstat for each commit.")
+		ap.SupportsFlag(GraphFlag, "", "Shows the commit graph.")
 	}
 	return ap
 }

go/cmd/dolt/cli/flags.go

@@ -36,6 +36,7 @@ const (
 	DepthFlag            = "depth"
 	DryRunFlag           = "dry-run"
 	ForceFlag            = "force"
+	GraphFlag            = "graph"
 	HardResetParam       = "hard"
 	HostFlag             = "host"
 	InteractiveFlag      = "interactive"

go/cmd/dolt/commands/log.go

@@ -359,6 +359,8 @@ func logToStdOut(apr *argparser.ArgParseResults, commits []CommitInfo, sqlCtx *s
 		defer pager.Stop()
 		if apr.Contains(cli.OneLineFlag) {
 			err = logCompact(pager, apr, commits, sqlCtx, queryist)
+		} else if apr.Contains(cli.GraphFlag) {
+			logGraph(pager, apr, commits)
 		} else {
 			err = logDefault(pager, apr, commits, sqlCtx, queryist)
 		}