make my scripting day

not everybody has the multiple choice between sqlite.exe and sqlite.dll

Author: stonebig

HISTORY.rst

@@ -11,6 +11,8 @@ Changelog
 
 * supports '.cd DIRECTORY' function
 
+* supports command-line scripting (see sqlite_bro -h)
+
 
 2021-04-25a : v0.9.3 'Hello, World!'
 ------------------------------------

README.rst

@@ -18,6 +18,8 @@ Features
 
 * Support of sql-embedded Python functions
 
+* support supports command-line scripting (see sqlite_bro -h), with or without Graphic User Interface
+
 * Easy to distribute : 1 Python source file, Python and PyPy3 compatible
 
 * Easy to start : just launch sqlite_bro
@@ -45,6 +47,10 @@ Example usage
 ::
 
   $ sqlite_bro
+
+::
+
+  $ sqlite_bro -h
  
 Screenshot
 ----------

sqlite_bro/sqlite_bro.py

@@ -1,7 +1,7 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 from __future__ import print_function, unicode_literals, division  # Python2.7
-
+import argparse
 
 import sqlite3 as sqlite
 import sys
@@ -33,7 +33,7 @@ class App:
     def __init__(self):
         """create a tkk graphic interface with a main window tk_win"""
         self.__version__ = '0.10.0'
-        self._title = "of 2021-08-01a : 'Hello, better .scripting World!'"
+        self._title = "of 2021-08-01a : 'Hello, scripting World!'"
         self.conn = None  # Baresql database object
         self.database_file = ""
         self.tk_win = Tk()
@@ -1598,10 +1598,33 @@ def export_writer(self, sql, csv_file, header=True,
                 writer.writerows(cursor.fetchall())
 
 def _main():
+    parser = argparse.ArgumentParser(description='sqlite_bro : a graphic SQLite browser in 1 Python file')
+    parser.add_argument("-q", "--quiet", action='store_true', help="do not launch the gui") 
+    parser.add_argument("-w", "--wait", action='store_true', help="wait the user to launch the scripts") 
+    parser.add_argument("-db", "--database", default=":memory:", type=str, help="specify initial Database if not ':memory:'") 
+    parser.add_argument("-sc", "--scripts", type=str, help="qive a list of initial scripts") 
+    args = parser.parse_args()
+    print(args)
     app = App()
     # start with a memory Database and a welcome
     app.new_db(":memory:")
-    welcome_text = """-- SQLite Memo (Demo = click on green "->" and "@" icons)
+    
+    if args.database:
+        app.open_db(args.database)
+    if args.scripts:
+        if isinstance(args.scripts, str):
+            scripts = [args.scripts, '', '']
+        else:
+            scripts = args.scripts
+        for script in scripts:
+            if os.path.isfile(script):
+                with io.open(script, encoding=guess_encoding(script)[0]) as f:
+                    welcome_text = f.read()
+                    app.n.new_query_tab("Welcome", welcome_text)
+                    if args.wait == False:
+                        app.run_tab()
+    else:    
+        welcome_text = """-- SQLite Memo (Demo = click on green "->" and "@" icons)
 \n-- to CREATE a table 'items' and a table 'parts' :
 DROP TABLE IF EXISTS item; DROP TABLE IF EXISTS part;
 CREATE TABLE item (ItemNo, Description,Kg  , PRIMARY KEY (ItemNo));
@@ -1672,8 +1695,11 @@ def _main():
 DROP TABLE IF EXISTS toto.new_item;
 CREATE TABLE toto.new_item as select * from "main"."item"
 """
-    app.n.new_query_tab("Welcome", welcome_text)
-    app.tk_win.mainloop()
+        app.n.new_query_tab("Welcome", welcome_text)
+    if args.quiet == True:
+        app.close_db
+    else:
+        app.tk_win.mainloop()
 
 if __name__ == '__main__':
     _main()    # create a tkk graphic interface with a main window tk_win