feat(dbms): introduce TDBMS CLI client app

tdbms/cli/tdbms-cli.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../../include/tdbms-client.h"
+
+int main(int argc, char **argv) {
+    char *db_name, request_code, *request_body;
+    if (argc < 4) {
+        request_body = "";
+    } else {
+        request_body = argv[3];
+    }
+    if (argc < 3) {
+        request_code = 0;
+    } else {
+        char *endptr;
+        request_code = (char) strtol(argv[2], &endptr, 0);
+        if (*endptr != 0) {
+            fprintf(stderr, "FATAL: invalid request code '%s'\n", argv[2]);
+            return 1;
+        }
+    }
+    if (argc < 2) {
+        db_name = "";
+    } else {
+        db_name = argv[1];
+    }
+    int socket_fd = tdbms_connect("UNIX", "/tmp/tdbms.sock");
+    if (socket_fd < 0) {
+        fprintf(stderr, "FATAL: failed to connect to TDBMS server\n");
+        return 1;
+    }
+    char *response = tdb_query(socket_fd, db_name, request_code, request_body);
+    if (response == NULL) {
+        fprintf(stderr, "FATAL: failed to execute request\n");
+        return 1;
+    }
+    printf("%s\n", response);
+    tdbms_close(socket_fd);
+    return 0;
+}

tdbms/install.sh

@@ -80,5 +80,13 @@ fi
 chown 0:0 /etc/systemd/system/tdbms.service
 chmod 0644 /etc/systemd/system/tdbms.service
 
+if ! (cmake -S .. -B ../build && cmake --build ../build --target tdb); then
+  echo "FATAL: failed to build TDB CLI client"
+  exit 1
+fi
+mv -f ../build/tdb /usr/bin/
+chown 42776 /usr/bin/tdb
+chmod 4755 /usr/bin/tdb
+
 echo "TDBMS server successfully installed."
 echo "Start it with 'systemctl start tdbms'"