Add "set patsub" for docker (and other) mounts

Author: rocky

__pkginfo__.py

@@ -71,12 +71,12 @@
 install_requires = [
     "columnize >= 0.3.10",
     "nose>=1.0.0, <= 1.3.7",
-    "pyficache >= 2.2.0",
-    "xdis >= 5.0.3",
+    "pyficache >= 2.2.1",
+    "xdis >= 5.0.4",
     "pygments %s" % pygments_version,
     "spark_parser >= 1.8.9, <1.9.0",
     "tracer >= 0.3.2",
-    "uncompyle6 >= 3.7.2",
+    "uncompyle6 >= 3.7.4",
 ]
 license = "GPL3"
 mailing_list = "python-debugger@googlegroups.com"

docs/commands/set/patsub.rst

@@ -0,0 +1,28 @@
+.. index:: set; patsub
+.. _set_patsub:
+
+Set Substition Pattern
+----------------------
+
+**set patsub** *from-re* *replace-string*
+
+Add a substitution pattern rule replacing *patsub* with
+*replace-string* anywhere it is found in source file names.  If a
+substitution rule was previously set for *from-re*, the old rule is
+replaced by the new one.
+
+In the following example, suppose in a docker container /mnt/project is
+the mount-point for /home/rocky/project. You are running the code
+from the docker container, but debugging this from outside of that.
+
+
+Example:
+++++++++
+
+::
+
+    set patsub ^/mmt/project /home/rocky/project
+
+.. seealso::
+
+   :ref:`set substitute <set_substitute>`

trepan/processor/command/set_subcmd/patsub.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+#   Copyright (C) 2020 Rocky Bernstein
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Our local modules
+from trepan.processor.command import base_subcmd as Mbase_subcmd
+
+
+class SetPatSub(Mbase_subcmd.DebuggerSubcommand):
+    """**set patsub** *from-re* *replace-string*
+
+Add a substitution pattern rule replacing *patsub* with
+*replace-string* anywhere it is found in source file names.  If a
+substitution rule was previously set for *from-re*, the old rule is
+replaced by the new one.
+
+In the following example, suppose in a docker container /mnt/project is
+the mount-point for /home/rocky/project. You are running the code
+from the docker container, but debugging this from outside of that.
+
+Example:
+--------
+
+    set patsub ^/mmt/project /home/rocky/project
+
+    """
+
+    in_list = True
+    min_abbrev = len("pats")
+    short_help = "Set pattern substitution rule"
+
+    def run(self, args):
+        if len(args) != 2:
+            self.errmsg("Expecting two arguments; got %d." % len(args))
+            return
+        self.proc.add_remap_pat(args[0], args[1])
+
+    pass
+
+
+if __name__ == "__main__":
+    from trepan.processor.command.set_subcmd import __demo_helper__ as Mhelper
+
+    Mhelper.demo_run(SetPatSub)
+    pass

trepan/processor/command/set_subcmd/substitute.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-#   Copyright (C) 2015, 2016 Rocky Bernstein
+#   Copyright (C) 2015-2016, 2020 Rocky Bernstein
 #
 #   This program is free software: you can redistribute it and/or modify
 #   it under the terms of the GNU General Public License as published by
@@ -40,15 +40,18 @@ class SetSubstitute(Mbase_subcmd.DebuggerSubcommand):
 
 """
 
-    in_list    = True
-    min_abbrev = len('sub')
-    short_help = 'Set filename substitution'
+    in_list = True
+    min_abbrev = len("sub")
+    short_help = "Set filename substitution"
 
     def run(self, args):
         pyficache.remap_file(args[1], args[0])
+
     pass
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     from trepan.processor.command.set_subcmd import __demo_helper__ as Mhelper
+
     Mhelper.demo_run(SetSubstitute)
     pass