Add version command line

game_backuper/cml.py

@@ -15,6 +15,7 @@ class OptAction(IntEnum):
     RESTORE = 1
     LIST = 2
     LIST_LEVELDB_KEY = 3
+    VERSION = 4
 
     @staticmethod
     def from_str(v: str) -> IntEnum:
@@ -28,6 +29,8 @@ class OptAction(IntEnum):
                 return OptAction.LIST
             elif t == 'list_leveldb_key':
                 return OptAction.LIST_LEVELDB_KEY
+            elif t == "version":
+                return OptAction.VERSION
         else:
             raise TypeError('Must be str.')
 
@@ -59,7 +62,7 @@ class Opts:
                 re = OptAction.from_str(cm[0])
                 if re is not None:
                     self.action = re
-                    if re == OptAction.LIST:
+                    if re == OptAction.LIST or re == OptAction.VERSION:
                         return
                     elif re == OptAction.LIST_LEVELDB_KEY:
                         if len(cm) == 1:

game_backuper/main.py

@@ -1,5 +1,5 @@
 from game_backuper.config import Config
-from game_backuper.cml import Opts
+from game_backuper.cml import Opts, OptAction
 from game_backuper.db import Db
 from game_backuper.backuper import Backuper
 from os import makedirs
@@ -11,6 +11,28 @@ def main(cm=None):
         import sys
         cm = sys.argv[1:]
     cml = Opts(cm)
+    if cml.action == OptAction.VERSION:
+        from game_backuper.compress import (
+            have_brotli,
+            have_bz2,
+            have_gzip,
+            have_lzip,
+            have_lzma,
+            have_snappy,
+            have_zstd,
+        )
+        from game_backuper.leveldb import have_leveldb
+        from game_backuper.regexp import have_pcre2
+        print("Brotli support:", have_brotli)
+        print("BZip2 support:", have_bz2)
+        print("GZip support:", have_gzip)
+        print("LZip support:", have_lzip)
+        print("LZMA support:", have_lzma)
+        print("Snappy support:", have_snappy)
+        print("ZSTD support:", have_zstd)
+        print("LevelDB support:", have_leveldb)
+        print("PCRE2 support:", have_pcre2)
+        return 0
     cfg = Config(cml.config_file)
     if not exists(cfg.dest):
         makedirs(cfg.dest)