feat: draw table for kvctl

Author: ZYunfeii

.vscode/launch.json

@@ -25,5 +25,26 @@
                 }
             ],
         },
+        {
+            "name": "kvctl",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/kvctl",
+            "args": ["--flagfile", "${workspaceFolder}/kvctl/config.flags"],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "internalConsoleOptions": "neverOpen",
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": false
+                }
+            ],
+        },
     ]
 }

.vscode/settings.json

@@ -48,6 +48,7 @@
         "utility": "cpp",
         "string": "cpp",
         "shared_mutex": "cpp",
-        "bitset": "cpp"
+        "bitset": "cpp",
+        "iomanip": "cpp"
     }
 }

README.md

@@ -42,6 +42,9 @@ then you can get `kvserver` and `kvclient`.
 ./kvserver
 ```
 
+# Persistent data frame format
+![avatar](/images/dataframe.svg)
+
 # About
 - This project is based on the gRPC framework to implement the memory-based KV cache middleware, which realizes the client and server respectively. Support list, string type KV cache, data snapshot and progressive Rehash.
 

images/dataframe.svg

@@ -0,0 +1,3 @@
+--ip=43.143.229.22
+--key=qjx
+--operate=get

kvctl/config.flags

@@ -0,0 +1,48 @@
+#ifndef DRAW_TABLE_H
+#define DRAWTABLE_H
+#include <vector>
+#include <iostream>
+#include <iomanip>
+void drawLine(std::vector<int>& max,int columns) {  //画行线
+	for (int i = 0; i < columns; i++) {
+		std::cout << "+-";
+		for (int j = 0; j <= max[i]; j++) {
+			std::cout << '-';
+		}
+	}
+	std::cout << '+' << std::endl;
+}
+
+void drawDatas(std::vector<int>& max, std::vector<std::vector<std::string>>& Str,
+               std::vector<std::string>& D,int columns,int row) { //显示构造过程，状态转换矩阵
+	drawLine(max,columns);
+	for (int i = 0; i < D.size(); i++) {
+		std::cout << "| " << std::setw(max[i]) << std::setiosflags(std::ios::left) << std::setfill(' ') << D[i] << ' ';
+	}
+	std::cout << '|' << std::endl;
+	drawLine(max, columns);
+	for (int i = 0; i < row; i++) {
+		for (int j = 0; j < columns; j++) {
+			std::cout << "| " << std::setw(max[j]) << std::setiosflags(std::ios::left) << std::setfill(' ');
+			std::cout << Str[i][j] << ' ';
+		}
+		std::cout << '|'<< std::endl;
+	}
+	drawLine(max, columns);
+}
+
+void maxLenForEveryCol(std::vector<std::vector<std::string>>& datas, std::vector<int>& maxLen) {
+    if (datas.empty()) return;
+    maxLen.resize(datas[0].size());
+    for (int i = 0; i < datas[0].size(); ++i) {
+        for (int j = 0; j < datas.size(); ++j) {
+            if (datas[j][i].size() > maxLen[i]) {
+                maxLen[i] = datas[j][i].size();
+            }
+        }
+        
+    }
+    return;
+}
+
+#endif