Implement python -m bpdb foo.py for bdpb

sebastinas · sebastinas · commit 00e0422a4316 · 2013-02-27T17:28:52.000+01:00
We should also install a bpdb script and it to setup.py.
diff --git a/bpdb/__init__.py b/bpdb/__init__.py
@@ -1,6 +1,7 @@
 # The MIT License
 #
 # Copyright (c) 2008 Bob Farrell
+# Copyright (c) 2013 Sebastian Ramacher
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -20,11 +21,14 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
+import os
 import sys
+import traceback
 
 import bpython
 from bpdb.debugger import BPdb
-
+from optparse import OptionParser
+from pdb import Restart
 
 __version__ = bpython.__version__
 
@@ -53,3 +57,52 @@ def post_mortem(t=None):
 
 def pm():
     post_mortem(getattr(sys, "last_traceback", None))
+
+def main():
+    parser = OptionParser(
+        usage='Usage: %prog [options] [file [args]]')
+    parser.add_option('--version', '-V', action='store_true',
+                      help='Print version and exit.')
+    options, args = parser.parse_args(sys.argv)
+    if options.version:
+        print 'bpdb on top of bpython version', __version__,
+        print 'on top of Python', sys.version.split()[0]
+        print ('(C) 2008-2013 Bob Farrell, Andreas Stuehrk et al. '
+               'See AUTHORS for detail.')
+        return 0
+
+    # The following code is baed on Python's pdb.py.
+    mainpyfile = args[1]
+    if not os.path.exists(mainpyfile):
+        print 'Error:', mainpyfile, 'does not exist'
+        return 1
+
+    # Hide bpdb from argument list.
+    del sys.argv[0]
+
+    # Replace bpdb's dir with script's dir in front of module search path.
+    sys.path[0] = os.path.dirname(mainpyfile)
+
+    pdb = BPdb()
+    while True:
+        try:
+            pdb._runscript(mainpyfile)
+            if pdb._user_requested_quit:
+                break
+            print "The program finished and will be restarted"
+        except Restart:
+            print "Restarting", mainpyfile, "with arguments:"
+            print "\t" + " ".join(sys.argv[1:])
+        except SystemExit:
+            # In most cases SystemExit does not warrant a post-mortem session.
+            print "The program exited via sys.exit(). Exit status: ",
+            print sys.exc_info()[1]
+        except:
+            traceback.print_exc()
+            print "Uncaught exception. Entering post mortem debugging"
+            print "Running 'cont' or 'step' will restart the program"
+            t = sys.exc_info()[2]
+            pdb.interaction(None, t)
+            print "Post mortem debugger finished. The " + mainpyfile + \
+                  " will be restarted"
+
diff --git a/bpdb/__main__.py b/bpdb/__main__.py
@@ -0,0 +1,27 @@
+# The MIT License
+#
+# Copyright (c) 2013 Sebastian Ramacher
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import sys
+
+if __name__ == '__main__':
+    from bpdb import main
+    sys.exit(main())
